2010-01-30 04:43:33 -07:00
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#include "builtin.h"
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#include "perf.h"
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2012-09-24 07:52:12 -06:00
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#include "util/evlist.h"
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2012-08-07 06:58:03 -06:00
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#include "util/evsel.h"
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2010-01-30 04:43:33 -07:00
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#include "util/util.h"
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#include "util/cache.h"
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#include "util/symbol.h"
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#include "util/thread.h"
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#include "util/header.h"
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#include "util/parse-options.h"
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#include "util/trace-event.h"
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#include "util/debug.h"
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#include "util/session.h"
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2011-11-28 03:30:20 -07:00
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#include "util/tool.h"
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2013-10-15 08:27:32 -06:00
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#include "util/data.h"
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2010-01-30 04:43:33 -07:00
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#include <sys/types.h>
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#include <sys/prctl.h>
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#include <semaphore.h>
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#include <pthread.h>
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#include <math.h>
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#include <limits.h>
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#include <linux/list.h>
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#include <linux/hash.h>
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2010-04-21 06:23:54 -06:00
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static struct perf_session *session;
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2010-01-30 04:43:33 -07:00
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/* based on kernel/lockdep.c */
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#define LOCKHASH_BITS 12
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#define LOCKHASH_SIZE (1UL << LOCKHASH_BITS)
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static struct list_head lockhash_table[LOCKHASH_SIZE];
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#define __lockhashfn(key) hash_long((unsigned long)key, LOCKHASH_BITS)
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#define lockhashentry(key) (lockhash_table + __lockhashfn((key)))
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struct lock_stat {
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2010-01-31 00:27:58 -07:00
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struct list_head hash_entry;
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struct rb_node rb; /* used for sorting */
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2010-01-30 04:43:33 -07:00
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2010-01-31 00:27:58 -07:00
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/*
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2012-09-24 07:52:12 -06:00
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* FIXME: perf_evsel__intval() returns u64,
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2010-01-30 04:43:33 -07:00
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* so address of lockdep_map should be dealed as 64bit.
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2010-01-31 00:27:58 -07:00
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* Is there more better solution?
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*/
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void *addr; /* address of lockdep_map, used as ID */
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char *name; /* for strcpy(), we cannot use const */
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2010-01-30 04:43:33 -07:00
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2010-01-31 00:27:58 -07:00
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unsigned int nr_acquire;
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2010-04-21 06:23:54 -06:00
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unsigned int nr_acquired;
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2010-01-31 00:27:58 -07:00
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unsigned int nr_contended;
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unsigned int nr_release;
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2010-01-30 04:43:33 -07:00
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2010-04-21 06:23:54 -06:00
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unsigned int nr_readlock;
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unsigned int nr_trylock;
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2013-09-08 20:19:19 -06:00
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2010-01-30 04:43:33 -07:00
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/* these times are in nano sec. */
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2013-09-08 20:19:19 -06:00
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u64 avg_wait_time;
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2010-01-31 00:27:58 -07:00
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u64 wait_time_total;
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u64 wait_time_min;
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u64 wait_time_max;
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2010-04-21 06:23:54 -06:00
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int discard; /* flag of blacklist */
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};
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/*
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* States of lock_seq_stat
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*
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* UNINITIALIZED is required for detecting first event of acquire.
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* As the nature of lock events, there is no guarantee
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* that the first event for the locks are acquire,
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* it can be acquired, contended or release.
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*/
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#define SEQ_STATE_UNINITIALIZED 0 /* initial state */
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#define SEQ_STATE_RELEASED 1
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#define SEQ_STATE_ACQUIRING 2
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#define SEQ_STATE_ACQUIRED 3
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#define SEQ_STATE_READ_ACQUIRED 4
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#define SEQ_STATE_CONTENDED 5
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/*
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* MAX_LOCK_DEPTH
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* Imported from include/linux/sched.h.
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* Should this be synchronized?
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*/
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#define MAX_LOCK_DEPTH 48
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/*
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* struct lock_seq_stat:
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* Place to put on state of one lock sequence
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* 1) acquire -> acquired -> release
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* 2) acquire -> contended -> acquired -> release
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* 3) acquire (with read or try) -> release
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* 4) Are there other patterns?
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*/
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struct lock_seq_stat {
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struct list_head list;
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int state;
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u64 prev_event_time;
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void *addr;
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int read_count;
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2010-01-30 04:43:33 -07:00
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};
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2010-04-21 06:23:54 -06:00
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struct thread_stat {
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struct rb_node rb;
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u32 tid;
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struct list_head seq_list;
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};
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static struct rb_root thread_stats;
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static struct thread_stat *thread_stat_find(u32 tid)
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{
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struct rb_node *node;
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struct thread_stat *st;
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node = thread_stats.rb_node;
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while (node) {
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st = container_of(node, struct thread_stat, rb);
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if (st->tid == tid)
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return st;
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else if (tid < st->tid)
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node = node->rb_left;
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else
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node = node->rb_right;
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}
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return NULL;
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}
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static void thread_stat_insert(struct thread_stat *new)
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{
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struct rb_node **rb = &thread_stats.rb_node;
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struct rb_node *parent = NULL;
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struct thread_stat *p;
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while (*rb) {
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p = container_of(*rb, struct thread_stat, rb);
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parent = *rb;
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if (new->tid < p->tid)
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rb = &(*rb)->rb_left;
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else if (new->tid > p->tid)
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rb = &(*rb)->rb_right;
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else
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BUG_ON("inserting invalid thread_stat\n");
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}
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rb_link_node(&new->rb, parent, rb);
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rb_insert_color(&new->rb, &thread_stats);
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}
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static struct thread_stat *thread_stat_findnew_after_first(u32 tid)
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{
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struct thread_stat *st;
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st = thread_stat_find(tid);
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if (st)
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return st;
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st = zalloc(sizeof(struct thread_stat));
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2012-08-26 12:24:43 -06:00
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if (!st) {
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pr_err("memory allocation failed\n");
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return NULL;
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}
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2010-04-21 06:23:54 -06:00
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st->tid = tid;
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INIT_LIST_HEAD(&st->seq_list);
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thread_stat_insert(st);
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return st;
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}
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static struct thread_stat *thread_stat_findnew_first(u32 tid);
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static struct thread_stat *(*thread_stat_findnew)(u32 tid) =
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thread_stat_findnew_first;
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static struct thread_stat *thread_stat_findnew_first(u32 tid)
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{
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struct thread_stat *st;
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st = zalloc(sizeof(struct thread_stat));
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2012-08-26 12:24:43 -06:00
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if (!st) {
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pr_err("memory allocation failed\n");
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return NULL;
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}
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2010-04-21 06:23:54 -06:00
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st->tid = tid;
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INIT_LIST_HEAD(&st->seq_list);
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rb_link_node(&st->rb, NULL, &thread_stats.rb_node);
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rb_insert_color(&st->rb, &thread_stats);
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thread_stat_findnew = thread_stat_findnew_after_first;
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return st;
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}
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2010-01-30 04:43:33 -07:00
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/* build simple key function one is bigger than two */
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2010-01-31 00:27:58 -07:00
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#define SINGLE_KEY(member) \
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2010-01-30 04:43:33 -07:00
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static int lock_stat_key_ ## member(struct lock_stat *one, \
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struct lock_stat *two) \
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{ \
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return one->member > two->member; \
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}
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SINGLE_KEY(nr_acquired)
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SINGLE_KEY(nr_contended)
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2013-09-08 20:19:19 -06:00
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SINGLE_KEY(avg_wait_time)
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2010-01-30 04:43:33 -07:00
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SINGLE_KEY(wait_time_total)
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SINGLE_KEY(wait_time_max)
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2011-02-22 10:47:15 -07:00
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static int lock_stat_key_wait_time_min(struct lock_stat *one,
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struct lock_stat *two)
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{
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u64 s1 = one->wait_time_min;
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u64 s2 = two->wait_time_min;
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if (s1 == ULLONG_MAX)
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s1 = 0;
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if (s2 == ULLONG_MAX)
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s2 = 0;
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return s1 > s2;
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}
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2010-01-30 04:43:33 -07:00
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struct lock_key {
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/*
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* name: the value for specify by user
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* this should be simpler than raw name of member
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* e.g. nr_acquired -> acquired, wait_time_total -> wait_total
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*/
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2010-01-31 00:27:58 -07:00
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const char *name;
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int (*key)(struct lock_stat*, struct lock_stat*);
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2010-01-30 04:43:33 -07:00
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};
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2010-01-31 00:27:58 -07:00
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static const char *sort_key = "acquired";
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static int (*compare)(struct lock_stat *, struct lock_stat *);
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static struct rb_root result; /* place to store sorted data */
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2010-01-30 04:43:33 -07:00
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#define DEF_KEY_LOCK(name, fn_suffix) \
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{ #name, lock_stat_key_ ## fn_suffix }
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struct lock_key keys[] = {
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DEF_KEY_LOCK(acquired, nr_acquired),
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DEF_KEY_LOCK(contended, nr_contended),
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2013-09-08 20:19:19 -06:00
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DEF_KEY_LOCK(avg_wait, avg_wait_time),
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2010-01-30 04:43:33 -07:00
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DEF_KEY_LOCK(wait_total, wait_time_total),
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DEF_KEY_LOCK(wait_min, wait_time_min),
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DEF_KEY_LOCK(wait_max, wait_time_max),
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/* extra comparisons much complicated should be here */
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{ NULL, NULL }
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};
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2012-08-26 12:24:43 -06:00
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static int select_key(void)
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2010-01-30 04:43:33 -07:00
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{
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int i;
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for (i = 0; keys[i].name; i++) {
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if (!strcmp(keys[i].name, sort_key)) {
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compare = keys[i].key;
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2012-08-26 12:24:43 -06:00
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return 0;
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2010-01-30 04:43:33 -07:00
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}
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}
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2012-08-26 12:24:43 -06:00
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pr_err("Unknown compare key: %s\n", sort_key);
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return -1;
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2010-01-30 04:43:33 -07:00
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}
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static void insert_to_result(struct lock_stat *st,
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2010-01-31 00:27:58 -07:00
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int (*bigger)(struct lock_stat *, struct lock_stat *))
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2010-01-30 04:43:33 -07:00
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{
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struct rb_node **rb = &result.rb_node;
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struct rb_node *parent = NULL;
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struct lock_stat *p;
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while (*rb) {
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p = container_of(*rb, struct lock_stat, rb);
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parent = *rb;
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if (bigger(st, p))
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rb = &(*rb)->rb_left;
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else
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rb = &(*rb)->rb_right;
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}
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rb_link_node(&st->rb, parent, rb);
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rb_insert_color(&st->rb, &result);
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}
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/* returns left most element of result, and erase it */
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static struct lock_stat *pop_from_result(void)
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{
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struct rb_node *node = result.rb_node;
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if (!node)
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return NULL;
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while (node->rb_left)
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node = node->rb_left;
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rb_erase(node, &result);
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return container_of(node, struct lock_stat, rb);
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}
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2010-01-31 00:27:58 -07:00
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static struct lock_stat *lock_stat_findnew(void *addr, const char *name)
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2010-01-30 04:43:33 -07:00
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{
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struct list_head *entry = lockhashentry(addr);
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struct lock_stat *ret, *new;
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list_for_each_entry(ret, entry, hash_entry) {
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if (ret->addr == addr)
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return ret;
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}
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new = zalloc(sizeof(struct lock_stat));
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if (!new)
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goto alloc_failed;
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new->addr = addr;
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new->name = zalloc(sizeof(char) * strlen(name) + 1);
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2013-09-08 20:19:15 -06:00
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if (!new->name) {
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free(new);
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2010-01-30 04:43:33 -07:00
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goto alloc_failed;
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2013-09-08 20:19:15 -06:00
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}
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2010-01-30 04:43:33 -07:00
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2013-09-08 20:19:15 -06:00
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strcpy(new->name, name);
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2010-01-30 04:43:33 -07:00
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new->wait_time_min = ULLONG_MAX;
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list_add(&new->hash_entry, entry);
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return new;
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alloc_failed:
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2012-08-26 12:24:43 -06:00
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pr_err("memory allocation failed\n");
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return NULL;
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2010-01-30 04:43:33 -07:00
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}
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struct trace_lock_handler {
|
2012-09-24 07:52:12 -06:00
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int (*acquire_event)(struct perf_evsel *evsel,
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struct perf_sample *sample);
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2010-01-30 04:43:33 -07:00
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2012-09-24 07:52:12 -06:00
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int (*acquired_event)(struct perf_evsel *evsel,
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struct perf_sample *sample);
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
int (*contended_event)(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample);
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
int (*release_event)(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample);
|
2010-01-30 04:43:33 -07:00
|
|
|
};
|
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
static struct lock_seq_stat *get_seq(struct thread_stat *ts, void *addr)
|
|
|
|
{
|
|
|
|
struct lock_seq_stat *seq;
|
|
|
|
|
|
|
|
list_for_each_entry(seq, &ts->seq_list, list) {
|
|
|
|
if (seq->addr == addr)
|
|
|
|
return seq;
|
|
|
|
}
|
|
|
|
|
|
|
|
seq = zalloc(sizeof(struct lock_seq_stat));
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!seq) {
|
|
|
|
pr_err("memory allocation failed\n");
|
|
|
|
return NULL;
|
|
|
|
}
|
2010-04-21 06:23:54 -06:00
|
|
|
seq->state = SEQ_STATE_UNINITIALIZED;
|
|
|
|
seq->addr = addr;
|
|
|
|
|
|
|
|
list_add(&seq->list, &ts->seq_list);
|
|
|
|
return seq;
|
|
|
|
}
|
|
|
|
|
2010-05-05 15:47:28 -06:00
|
|
|
enum broken_state {
|
|
|
|
BROKEN_ACQUIRE,
|
|
|
|
BROKEN_ACQUIRED,
|
|
|
|
BROKEN_CONTENDED,
|
|
|
|
BROKEN_RELEASE,
|
|
|
|
BROKEN_MAX,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int bad_hist[BROKEN_MAX];
|
2010-04-21 06:23:54 -06:00
|
|
|
|
2010-05-05 15:57:25 -06:00
|
|
|
enum acquire_flags {
|
|
|
|
TRY_LOCK = 1,
|
|
|
|
READ_LOCK = 2,
|
|
|
|
};
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
static int report_lock_acquire_event(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-09-24 07:52:12 -06:00
|
|
|
void *addr;
|
2010-04-21 06:23:54 -06:00
|
|
|
struct lock_stat *ls;
|
|
|
|
struct thread_stat *ts;
|
|
|
|
struct lock_seq_stat *seq;
|
2012-09-24 07:52:12 -06:00
|
|
|
const char *name = perf_evsel__strval(evsel, sample, "name");
|
|
|
|
u64 tmp = perf_evsel__intval(evsel, sample, "lockdep_addr");
|
|
|
|
int flag = perf_evsel__intval(evsel, sample, "flag");
|
2010-04-21 06:23:54 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
memcpy(&addr, &tmp, sizeof(void *));
|
|
|
|
|
|
|
|
ls = lock_stat_findnew(addr, name);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ls)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-04-21 06:23:54 -06:00
|
|
|
if (ls->discard)
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-08-07 07:59:44 -06:00
|
|
|
ts = thread_stat_findnew(sample->tid);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ts)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2012-08-26 12:24:43 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
seq = get_seq(ts, addr);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!seq)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
switch (seq->state) {
|
|
|
|
case SEQ_STATE_UNINITIALIZED:
|
|
|
|
case SEQ_STATE_RELEASED:
|
2012-09-24 07:52:12 -06:00
|
|
|
if (!flag) {
|
2010-04-21 06:23:54 -06:00
|
|
|
seq->state = SEQ_STATE_ACQUIRING;
|
|
|
|
} else {
|
2012-09-24 07:52:12 -06:00
|
|
|
if (flag & TRY_LOCK)
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->nr_trylock++;
|
2012-09-24 07:52:12 -06:00
|
|
|
if (flag & READ_LOCK)
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->nr_readlock++;
|
|
|
|
seq->state = SEQ_STATE_READ_ACQUIRED;
|
|
|
|
seq->read_count = 1;
|
|
|
|
ls->nr_acquired++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case SEQ_STATE_READ_ACQUIRED:
|
2012-09-24 07:52:12 -06:00
|
|
|
if (flag & READ_LOCK) {
|
2010-04-21 06:23:54 -06:00
|
|
|
seq->read_count++;
|
|
|
|
ls->nr_acquired++;
|
|
|
|
goto end;
|
|
|
|
} else {
|
|
|
|
goto broken;
|
|
|
|
}
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_ACQUIRED:
|
|
|
|
case SEQ_STATE_ACQUIRING:
|
|
|
|
case SEQ_STATE_CONTENDED:
|
|
|
|
broken:
|
|
|
|
/* broken lock sequence, discard it */
|
|
|
|
ls->discard = 1;
|
2010-05-05 15:47:28 -06:00
|
|
|
bad_hist[BROKEN_ACQUIRE]++;
|
2010-04-21 06:23:54 -06:00
|
|
|
list_del(&seq->list);
|
|
|
|
free(seq);
|
|
|
|
goto end;
|
2010-01-30 04:43:33 -07:00
|
|
|
default:
|
2010-04-21 06:23:54 -06:00
|
|
|
BUG_ON("Unknown state of lock sequence found!\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->nr_acquire++;
|
2012-08-07 07:59:44 -06:00
|
|
|
seq->prev_event_time = sample->time;
|
2010-04-21 06:23:54 -06:00
|
|
|
end:
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
static int report_lock_acquired_event(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-09-24 07:52:12 -06:00
|
|
|
void *addr;
|
2010-04-21 06:23:54 -06:00
|
|
|
struct lock_stat *ls;
|
|
|
|
struct thread_stat *ts;
|
|
|
|
struct lock_seq_stat *seq;
|
|
|
|
u64 contended_term;
|
2012-09-24 07:52:12 -06:00
|
|
|
const char *name = perf_evsel__strval(evsel, sample, "name");
|
|
|
|
u64 tmp = perf_evsel__intval(evsel, sample, "lockdep_addr");
|
|
|
|
|
|
|
|
memcpy(&addr, &tmp, sizeof(void *));
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
ls = lock_stat_findnew(addr, name);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ls)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-04-21 06:23:54 -06:00
|
|
|
if (ls->discard)
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-04-21 06:23:54 -06:00
|
|
|
|
2012-08-07 07:59:44 -06:00
|
|
|
ts = thread_stat_findnew(sample->tid);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ts)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2012-08-26 12:24:43 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
seq = get_seq(ts, addr);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!seq)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
switch (seq->state) {
|
|
|
|
case SEQ_STATE_UNINITIALIZED:
|
|
|
|
/* orphan event, do nothing */
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_ACQUIRING:
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_CONTENDED:
|
2012-09-24 07:52:12 -06:00
|
|
|
contended_term = sample->time - seq->prev_event_time;
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->wait_time_total += contended_term;
|
|
|
|
if (contended_term < ls->wait_time_min)
|
|
|
|
ls->wait_time_min = contended_term;
|
2010-05-06 18:33:42 -06:00
|
|
|
if (ls->wait_time_max < contended_term)
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->wait_time_max = contended_term;
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_RELEASED:
|
|
|
|
case SEQ_STATE_ACQUIRED:
|
|
|
|
case SEQ_STATE_READ_ACQUIRED:
|
|
|
|
/* broken lock sequence, discard it */
|
|
|
|
ls->discard = 1;
|
2010-05-05 15:47:28 -06:00
|
|
|
bad_hist[BROKEN_ACQUIRED]++;
|
2010-04-21 06:23:54 -06:00
|
|
|
list_del(&seq->list);
|
|
|
|
free(seq);
|
|
|
|
goto end;
|
2010-01-30 04:43:33 -07:00
|
|
|
default:
|
2010-04-21 06:23:54 -06:00
|
|
|
BUG_ON("Unknown state of lock sequence found!\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
seq->state = SEQ_STATE_ACQUIRED;
|
|
|
|
ls->nr_acquired++;
|
2013-09-08 20:19:19 -06:00
|
|
|
ls->avg_wait_time = ls->nr_contended ? ls->wait_time_total/ls->nr_contended : 0;
|
2012-09-24 07:52:12 -06:00
|
|
|
seq->prev_event_time = sample->time;
|
2010-04-21 06:23:54 -06:00
|
|
|
end:
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
static int report_lock_contended_event(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-09-24 07:52:12 -06:00
|
|
|
void *addr;
|
2010-04-21 06:23:54 -06:00
|
|
|
struct lock_stat *ls;
|
|
|
|
struct thread_stat *ts;
|
|
|
|
struct lock_seq_stat *seq;
|
2012-09-24 07:52:12 -06:00
|
|
|
const char *name = perf_evsel__strval(evsel, sample, "name");
|
|
|
|
u64 tmp = perf_evsel__intval(evsel, sample, "lockdep_addr");
|
|
|
|
|
|
|
|
memcpy(&addr, &tmp, sizeof(void *));
|
2010-04-21 06:23:54 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
ls = lock_stat_findnew(addr, name);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ls)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-04-21 06:23:54 -06:00
|
|
|
if (ls->discard)
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-08-07 07:59:44 -06:00
|
|
|
ts = thread_stat_findnew(sample->tid);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ts)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2012-08-26 12:24:43 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
seq = get_seq(ts, addr);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!seq)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
switch (seq->state) {
|
|
|
|
case SEQ_STATE_UNINITIALIZED:
|
|
|
|
/* orphan event, do nothing */
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_ACQUIRING:
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
2010-04-21 06:23:54 -06:00
|
|
|
case SEQ_STATE_RELEASED:
|
|
|
|
case SEQ_STATE_ACQUIRED:
|
|
|
|
case SEQ_STATE_READ_ACQUIRED:
|
|
|
|
case SEQ_STATE_CONTENDED:
|
|
|
|
/* broken lock sequence, discard it */
|
|
|
|
ls->discard = 1;
|
2010-05-05 15:47:28 -06:00
|
|
|
bad_hist[BROKEN_CONTENDED]++;
|
2010-04-21 06:23:54 -06:00
|
|
|
list_del(&seq->list);
|
|
|
|
free(seq);
|
|
|
|
goto end;
|
2010-01-30 04:43:33 -07:00
|
|
|
default:
|
2010-04-21 06:23:54 -06:00
|
|
|
BUG_ON("Unknown state of lock sequence found!\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
seq->state = SEQ_STATE_CONTENDED;
|
|
|
|
ls->nr_contended++;
|
2013-09-08 20:19:19 -06:00
|
|
|
ls->avg_wait_time = ls->wait_time_total/ls->nr_contended;
|
2012-08-07 07:59:44 -06:00
|
|
|
seq->prev_event_time = sample->time;
|
2010-04-21 06:23:54 -06:00
|
|
|
end:
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
static int report_lock_release_event(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-09-24 07:52:12 -06:00
|
|
|
void *addr;
|
2010-04-21 06:23:54 -06:00
|
|
|
struct lock_stat *ls;
|
|
|
|
struct thread_stat *ts;
|
|
|
|
struct lock_seq_stat *seq;
|
2012-09-24 07:52:12 -06:00
|
|
|
const char *name = perf_evsel__strval(evsel, sample, "name");
|
|
|
|
u64 tmp = perf_evsel__intval(evsel, sample, "lockdep_addr");
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
memcpy(&addr, &tmp, sizeof(void *));
|
|
|
|
|
|
|
|
ls = lock_stat_findnew(addr, name);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ls)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-04-21 06:23:54 -06:00
|
|
|
if (ls->discard)
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-08-07 07:59:44 -06:00
|
|
|
ts = thread_stat_findnew(sample->tid);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!ts)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2012-08-26 12:24:43 -06:00
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
seq = get_seq(ts, addr);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!seq)
|
2013-09-08 20:19:14 -06:00
|
|
|
return -ENOMEM;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
switch (seq->state) {
|
|
|
|
case SEQ_STATE_UNINITIALIZED:
|
|
|
|
goto end;
|
|
|
|
case SEQ_STATE_ACQUIRED:
|
|
|
|
break;
|
|
|
|
case SEQ_STATE_READ_ACQUIRED:
|
|
|
|
seq->read_count--;
|
|
|
|
BUG_ON(seq->read_count < 0);
|
|
|
|
if (!seq->read_count) {
|
|
|
|
ls->nr_release++;
|
2010-01-30 04:43:33 -07:00
|
|
|
goto end;
|
|
|
|
}
|
2010-04-21 06:23:54 -06:00
|
|
|
break;
|
|
|
|
case SEQ_STATE_ACQUIRING:
|
|
|
|
case SEQ_STATE_CONTENDED:
|
|
|
|
case SEQ_STATE_RELEASED:
|
|
|
|
/* broken lock sequence, discard it */
|
|
|
|
ls->discard = 1;
|
2010-05-05 15:47:28 -06:00
|
|
|
bad_hist[BROKEN_RELEASE]++;
|
2010-04-21 06:23:54 -06:00
|
|
|
goto free_seq;
|
2010-01-30 04:43:33 -07:00
|
|
|
default:
|
2010-04-21 06:23:54 -06:00
|
|
|
BUG_ON("Unknown state of lock sequence found!\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
ls->nr_release++;
|
|
|
|
free_seq:
|
|
|
|
list_del(&seq->list);
|
|
|
|
free(seq);
|
2010-01-30 04:43:33 -07:00
|
|
|
end:
|
2012-08-26 12:24:43 -06:00
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
/* lock oriented handlers */
|
|
|
|
/* TODO: handlers for CPU oriented, thread oriented */
|
2010-01-31 00:27:58 -07:00
|
|
|
static struct trace_lock_handler report_lock_ops = {
|
|
|
|
.acquire_event = report_lock_acquire_event,
|
|
|
|
.acquired_event = report_lock_acquired_event,
|
|
|
|
.contended_event = report_lock_contended_event,
|
|
|
|
.release_event = report_lock_release_event,
|
2010-01-30 04:43:33 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct trace_lock_handler *trace_handler;
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
static int perf_evsel__process_lock_acquire(struct perf_evsel *evsel,
|
2012-08-07 07:59:44 -06:00
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2010-01-31 00:27:58 -07:00
|
|
|
if (trace_handler->acquire_event)
|
2012-09-24 07:52:12 -06:00
|
|
|
return trace_handler->acquire_event(evsel, sample);
|
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
static int perf_evsel__process_lock_acquired(struct perf_evsel *evsel,
|
2012-08-07 07:59:44 -06:00
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-08-26 12:24:43 -06:00
|
|
|
if (trace_handler->acquired_event)
|
2012-09-24 07:52:12 -06:00
|
|
|
return trace_handler->acquired_event(evsel, sample);
|
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
static int perf_evsel__process_lock_contended(struct perf_evsel *evsel,
|
2012-09-24 07:52:12 -06:00
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-08-26 12:24:43 -06:00
|
|
|
if (trace_handler->contended_event)
|
2012-09-24 07:52:12 -06:00
|
|
|
return trace_handler->contended_event(evsel, sample);
|
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
static int perf_evsel__process_lock_release(struct perf_evsel *evsel,
|
2012-09-24 07:52:12 -06:00
|
|
|
struct perf_sample *sample)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-08-26 12:24:43 -06:00
|
|
|
if (trace_handler->release_event)
|
2012-09-24 07:52:12 -06:00
|
|
|
return trace_handler->release_event(evsel, sample);
|
|
|
|
return 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2010-05-05 15:47:28 -06:00
|
|
|
static void print_bad_events(int bad, int total)
|
|
|
|
{
|
|
|
|
/* Output for debug, this have to be removed */
|
|
|
|
int i;
|
|
|
|
const char *name[4] =
|
|
|
|
{ "acquire", "acquired", "contended", "release" };
|
|
|
|
|
|
|
|
pr_info("\n=== output for debug===\n\n");
|
2010-05-05 20:55:22 -06:00
|
|
|
pr_info("bad: %d, total: %d\n", bad, total);
|
2013-09-08 20:19:18 -06:00
|
|
|
pr_info("bad rate: %.2f %%\n", (double)bad / (double)total * 100);
|
2010-05-05 15:47:28 -06:00
|
|
|
pr_info("histogram of events caused bad sequence\n");
|
|
|
|
for (i = 0; i < BROKEN_MAX; i++)
|
|
|
|
pr_info(" %10s: %d\n", name[i], bad_hist[i]);
|
|
|
|
}
|
|
|
|
|
2010-01-30 04:43:33 -07:00
|
|
|
/* TODO: various way to print, coloring, nano or milli sec */
|
|
|
|
static void print_result(void)
|
|
|
|
{
|
|
|
|
struct lock_stat *st;
|
|
|
|
char cut_name[20];
|
2010-04-21 06:23:54 -06:00
|
|
|
int bad, total;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("%20s ", "Name");
|
|
|
|
pr_info("%10s ", "acquired");
|
|
|
|
pr_info("%10s ", "contended");
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2013-09-08 20:19:19 -06:00
|
|
|
pr_info("%15s ", "avg wait (ns)");
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("%15s ", "total wait (ns)");
|
|
|
|
pr_info("%15s ", "max wait (ns)");
|
|
|
|
pr_info("%15s ", "min wait (ns)");
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("\n\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2010-04-21 06:23:54 -06:00
|
|
|
bad = total = 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
while ((st = pop_from_result())) {
|
2010-04-21 06:23:54 -06:00
|
|
|
total++;
|
|
|
|
if (st->discard) {
|
|
|
|
bad++;
|
|
|
|
continue;
|
|
|
|
}
|
2010-01-30 04:43:33 -07:00
|
|
|
bzero(cut_name, 20);
|
|
|
|
|
|
|
|
if (strlen(st->name) < 16) {
|
|
|
|
/* output raw name */
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("%20s ", st->name);
|
2010-01-30 04:43:33 -07:00
|
|
|
} else {
|
|
|
|
strncpy(cut_name, st->name, 16);
|
|
|
|
cut_name[16] = '.';
|
|
|
|
cut_name[17] = '.';
|
|
|
|
cut_name[18] = '.';
|
|
|
|
cut_name[19] = '\0';
|
|
|
|
/* cut off name for saving output style */
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("%20s ", cut_name);
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("%10u ", st->nr_acquired);
|
|
|
|
pr_info("%10u ", st->nr_contended);
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2013-09-08 20:19:19 -06:00
|
|
|
pr_info("%15" PRIu64 " ", st->avg_wait_time);
|
2011-01-22 15:37:02 -07:00
|
|
|
pr_info("%15" PRIu64 " ", st->wait_time_total);
|
|
|
|
pr_info("%15" PRIu64 " ", st->wait_time_max);
|
|
|
|
pr_info("%15" PRIu64 " ", st->wait_time_min == ULLONG_MAX ?
|
2010-01-30 04:43:33 -07:00
|
|
|
0 : st->wait_time_min);
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
2010-04-21 06:23:54 -06:00
|
|
|
|
2010-05-05 15:47:28 -06:00
|
|
|
print_bad_events(bad, total);
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2010-05-17 12:51:10 -06:00
|
|
|
static bool info_threads, info_map;
|
2010-05-02 23:12:00 -06:00
|
|
|
|
|
|
|
static void dump_threads(void)
|
|
|
|
{
|
|
|
|
struct thread_stat *st;
|
|
|
|
struct rb_node *node;
|
|
|
|
struct thread *t;
|
|
|
|
|
|
|
|
pr_info("%10s: comm\n", "Thread ID");
|
|
|
|
|
|
|
|
node = rb_first(&thread_stats);
|
|
|
|
while (node) {
|
|
|
|
st = container_of(node, struct thread_stat, rb);
|
|
|
|
t = perf_session__findnew(session, st->tid);
|
2013-09-11 06:46:56 -06:00
|
|
|
pr_info("%10d: %s\n", st->tid, thread__comm_str(t));
|
2010-05-02 23:12:00 -06:00
|
|
|
node = rb_next(node);
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
2010-01-30 04:43:33 -07:00
|
|
|
static void dump_map(void)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
struct lock_stat *st;
|
|
|
|
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info("Address of instance: name of class\n");
|
2010-01-30 04:43:33 -07:00
|
|
|
for (i = 0; i < LOCKHASH_SIZE; i++) {
|
|
|
|
list_for_each_entry(st, &lockhash_table[i], hash_entry) {
|
2010-05-02 23:12:00 -06:00
|
|
|
pr_info(" %p: %s\n", st->addr, st->name);
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
static int dump_info(void)
|
2010-05-02 23:12:00 -06:00
|
|
|
{
|
2012-08-26 12:24:43 -06:00
|
|
|
int rc = 0;
|
|
|
|
|
2010-05-02 23:12:00 -06:00
|
|
|
if (info_threads)
|
|
|
|
dump_threads();
|
|
|
|
else if (info_map)
|
|
|
|
dump_map();
|
2012-08-26 12:24:43 -06:00
|
|
|
else {
|
|
|
|
rc = -1;
|
|
|
|
pr_err("Unknown type of information\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
2010-05-02 23:12:00 -06:00
|
|
|
}
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
typedef int (*tracepoint_handler)(struct perf_evsel *evsel,
|
|
|
|
struct perf_sample *sample);
|
|
|
|
|
2012-09-10 16:15:03 -06:00
|
|
|
static int process_sample_event(struct perf_tool *tool __maybe_unused,
|
2011-11-25 03:19:45 -07:00
|
|
|
union perf_event *event,
|
2011-03-15 12:44:01 -06:00
|
|
|
struct perf_sample *sample,
|
2012-08-07 06:58:03 -06:00
|
|
|
struct perf_evsel *evsel,
|
2011-11-28 02:56:39 -07:00
|
|
|
struct machine *machine)
|
2010-04-23 16:04:12 -06:00
|
|
|
{
|
2013-08-27 02:23:03 -06:00
|
|
|
struct thread *thread = machine__findnew_thread(machine, sample->pid,
|
|
|
|
sample->tid);
|
2010-04-23 16:04:12 -06:00
|
|
|
|
|
|
|
if (thread == NULL) {
|
|
|
|
pr_debug("problem processing %d event, skipping it.\n",
|
2011-01-29 09:01:45 -07:00
|
|
|
event->header.type);
|
2010-04-23 16:04:12 -06:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2013-11-06 06:17:38 -07:00
|
|
|
if (evsel->handler != NULL) {
|
|
|
|
tracepoint_handler f = evsel->handler;
|
2012-09-24 07:52:12 -06:00
|
|
|
return f(evsel, sample);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2010-04-23 16:04:12 -06:00
|
|
|
}
|
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
static void sort_result(void)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
struct lock_stat *st;
|
|
|
|
|
|
|
|
for (i = 0; i < LOCKHASH_SIZE; i++) {
|
|
|
|
list_for_each_entry(st, &lockhash_table[i], hash_entry) {
|
|
|
|
insert_to_result(st, compare);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
static const struct perf_evsel_str_handler lock_tracepoints[] = {
|
|
|
|
{ "lock:lock_acquire", perf_evsel__process_lock_acquire, }, /* CONFIG_LOCKDEP */
|
|
|
|
{ "lock:lock_acquired", perf_evsel__process_lock_acquired, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */
|
|
|
|
{ "lock:lock_contended", perf_evsel__process_lock_contended, }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */
|
|
|
|
{ "lock:lock_release", perf_evsel__process_lock_release, }, /* CONFIG_LOCKDEP */
|
|
|
|
};
|
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
static int __cmd_report(bool display_info)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2013-09-08 20:19:16 -06:00
|
|
|
int err = -EINVAL;
|
2012-10-01 12:20:58 -06:00
|
|
|
struct perf_tool eops = {
|
|
|
|
.sample = process_sample_event,
|
|
|
|
.comm = perf_event__process_comm,
|
|
|
|
.ordered_samples = true,
|
|
|
|
};
|
2013-10-15 08:27:32 -06:00
|
|
|
struct perf_data_file file = {
|
|
|
|
.path = input_name,
|
|
|
|
.mode = PERF_DATA_MODE_READ,
|
|
|
|
};
|
2013-09-08 20:19:16 -06:00
|
|
|
|
2013-10-15 08:27:32 -06:00
|
|
|
session = perf_session__new(&file, false, &eops);
|
2012-08-26 12:24:43 -06:00
|
|
|
if (!session) {
|
|
|
|
pr_err("Initializing perf session failed\n");
|
2013-09-08 20:19:16 -06:00
|
|
|
return -ENOMEM;
|
2012-08-26 12:24:43 -06:00
|
|
|
}
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
if (!perf_session__has_traces(session, "lock record"))
|
|
|
|
goto out_delete;
|
|
|
|
|
2012-09-24 07:52:12 -06:00
|
|
|
if (perf_session__set_tracepoints_handlers(session, lock_tracepoints)) {
|
|
|
|
pr_err("Initializing perf session tracepoint handlers failed\n");
|
2013-09-08 20:19:16 -06:00
|
|
|
goto out_delete;
|
2012-09-24 07:52:12 -06:00
|
|
|
}
|
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
if (select_key())
|
|
|
|
goto out_delete;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
err = perf_session__process_events(session, &eops);
|
|
|
|
if (err)
|
|
|
|
goto out_delete;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
|
|
|
setup_pager();
|
2013-09-08 20:19:16 -06:00
|
|
|
if (display_info) /* used for info subcommand */
|
|
|
|
err = dump_info();
|
|
|
|
else {
|
|
|
|
sort_result();
|
|
|
|
print_result();
|
|
|
|
}
|
2012-08-26 12:24:43 -06:00
|
|
|
|
2013-09-08 20:19:16 -06:00
|
|
|
out_delete:
|
|
|
|
perf_session__delete(session);
|
|
|
|
return err;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int __cmd_record(int argc, const char **argv)
|
|
|
|
{
|
2012-10-01 12:20:58 -06:00
|
|
|
const char *record_args[] = {
|
2013-06-05 05:37:21 -06:00
|
|
|
"record", "-R", "-m", "1024", "-c", "1",
|
2012-10-01 12:20:58 -06:00
|
|
|
};
|
2013-09-08 20:19:15 -06:00
|
|
|
unsigned int rec_argc, i, j, ret;
|
2010-01-30 04:43:33 -07:00
|
|
|
const char **rec_argv;
|
|
|
|
|
2012-08-09 10:35:37 -06:00
|
|
|
for (i = 0; i < ARRAY_SIZE(lock_tracepoints); i++) {
|
2012-09-24 07:52:12 -06:00
|
|
|
if (!is_valid_tracepoint(lock_tracepoints[i].name)) {
|
2012-08-09 10:35:37 -06:00
|
|
|
pr_err("tracepoint %s is not enabled. "
|
|
|
|
"Are CONFIG_LOCKDEP and CONFIG_LOCK_STAT enabled?\n",
|
2012-09-24 07:52:12 -06:00
|
|
|
lock_tracepoints[i].name);
|
2012-08-09 10:35:37 -06:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-01-30 04:43:33 -07:00
|
|
|
rec_argc = ARRAY_SIZE(record_args) + argc - 1;
|
2012-08-09 10:35:37 -06:00
|
|
|
/* factor of 2 is for -e in front of each tracepoint */
|
|
|
|
rec_argc += 2 * ARRAY_SIZE(lock_tracepoints);
|
2010-01-30 04:43:33 -07:00
|
|
|
|
2012-08-09 10:35:37 -06:00
|
|
|
rec_argv = calloc(rec_argc + 1, sizeof(char *));
|
2013-09-08 20:19:15 -06:00
|
|
|
if (!rec_argv)
|
2010-11-12 19:35:06 -07:00
|
|
|
return -ENOMEM;
|
|
|
|
|
2010-01-30 04:43:33 -07:00
|
|
|
for (i = 0; i < ARRAY_SIZE(record_args); i++)
|
|
|
|
rec_argv[i] = strdup(record_args[i]);
|
|
|
|
|
2012-08-09 10:35:37 -06:00
|
|
|
for (j = 0; j < ARRAY_SIZE(lock_tracepoints); j++) {
|
|
|
|
rec_argv[i++] = "-e";
|
2012-09-24 07:52:12 -06:00
|
|
|
rec_argv[i++] = strdup(lock_tracepoints[j].name);
|
2012-08-09 10:35:37 -06:00
|
|
|
}
|
|
|
|
|
2010-01-30 04:43:33 -07:00
|
|
|
for (j = 1; j < (unsigned int)argc; j++, i++)
|
|
|
|
rec_argv[i] = argv[j];
|
|
|
|
|
|
|
|
BUG_ON(i != rec_argc);
|
|
|
|
|
2013-09-08 20:19:15 -06:00
|
|
|
ret = cmd_record(i, rec_argv, NULL);
|
|
|
|
free(rec_argv);
|
|
|
|
return ret;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
|
|
|
|
2012-09-10 16:15:03 -06:00
|
|
|
int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
|
2010-01-30 04:43:33 -07:00
|
|
|
{
|
2012-10-01 12:20:58 -06:00
|
|
|
const struct option info_options[] = {
|
|
|
|
OPT_BOOLEAN('t', "threads", &info_threads,
|
|
|
|
"dump thread list in perf.data"),
|
|
|
|
OPT_BOOLEAN('m', "map", &info_map,
|
|
|
|
"map of lock instances (address:name table)"),
|
|
|
|
OPT_END()
|
|
|
|
};
|
|
|
|
const struct option lock_options[] = {
|
|
|
|
OPT_STRING('i', "input", &input_name, "file", "input file name"),
|
|
|
|
OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"),
|
|
|
|
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"),
|
|
|
|
OPT_END()
|
|
|
|
};
|
|
|
|
const struct option report_options[] = {
|
|
|
|
OPT_STRING('k', "key", &sort_key, "acquired",
|
2013-09-08 20:19:19 -06:00
|
|
|
"key for sorting (acquired / contended / avg_wait / wait_total / wait_max / wait_min)"),
|
2012-10-01 12:20:58 -06:00
|
|
|
/* TODO: type */
|
|
|
|
OPT_END()
|
|
|
|
};
|
|
|
|
const char * const info_usage[] = {
|
|
|
|
"perf lock info [<options>]",
|
|
|
|
NULL
|
|
|
|
};
|
2014-03-14 21:17:53 -06:00
|
|
|
const char *const lock_subcommands[] = { "record", "report", "script",
|
|
|
|
"info", NULL };
|
|
|
|
const char *lock_usage[] = {
|
|
|
|
NULL,
|
2012-10-01 12:20:58 -06:00
|
|
|
NULL
|
|
|
|
};
|
|
|
|
const char * const report_usage[] = {
|
|
|
|
"perf lock report [<options>]",
|
|
|
|
NULL
|
|
|
|
};
|
2010-01-30 04:43:33 -07:00
|
|
|
unsigned int i;
|
2012-08-26 12:24:43 -06:00
|
|
|
int rc = 0;
|
2010-01-30 04:43:33 -07:00
|
|
|
|
|
|
|
symbol__init();
|
|
|
|
for (i = 0; i < LOCKHASH_SIZE; i++)
|
|
|
|
INIT_LIST_HEAD(lockhash_table + i);
|
|
|
|
|
2014-03-14 21:17:53 -06:00
|
|
|
argc = parse_options_subcommand(argc, argv, lock_options, lock_subcommands,
|
|
|
|
lock_usage, PARSE_OPT_STOP_AT_NON_OPTION);
|
2010-01-30 04:43:33 -07:00
|
|
|
if (!argc)
|
|
|
|
usage_with_options(lock_usage, lock_options);
|
|
|
|
|
|
|
|
if (!strncmp(argv[0], "rec", 3)) {
|
|
|
|
return __cmd_record(argc, argv);
|
2010-01-31 00:27:58 -07:00
|
|
|
} else if (!strncmp(argv[0], "report", 6)) {
|
|
|
|
trace_handler = &report_lock_ops;
|
2010-01-30 04:43:33 -07:00
|
|
|
if (argc) {
|
|
|
|
argc = parse_options(argc, argv,
|
2010-01-31 00:27:58 -07:00
|
|
|
report_options, report_usage, 0);
|
2010-01-30 04:43:33 -07:00
|
|
|
if (argc)
|
2010-01-31 00:27:58 -07:00
|
|
|
usage_with_options(report_usage, report_options);
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|
2013-09-08 20:19:16 -06:00
|
|
|
rc = __cmd_report(false);
|
2010-11-16 10:45:39 -07:00
|
|
|
} else if (!strcmp(argv[0], "script")) {
|
|
|
|
/* Aliased to 'perf script' */
|
|
|
|
return cmd_script(argc, argv, prefix);
|
2010-05-02 23:12:00 -06:00
|
|
|
} else if (!strcmp(argv[0], "info")) {
|
|
|
|
if (argc) {
|
|
|
|
argc = parse_options(argc, argv,
|
|
|
|
info_options, info_usage, 0);
|
|
|
|
if (argc)
|
|
|
|
usage_with_options(info_usage, info_options);
|
|
|
|
}
|
2010-01-31 00:27:58 -07:00
|
|
|
/* recycling report_lock_ops */
|
|
|
|
trace_handler = &report_lock_ops;
|
2013-09-08 20:19:16 -06:00
|
|
|
rc = __cmd_report(true);
|
2010-01-30 04:43:33 -07:00
|
|
|
} else {
|
|
|
|
usage_with_options(lock_usage, lock_options);
|
|
|
|
}
|
|
|
|
|
2012-08-26 12:24:43 -06:00
|
|
|
return rc;
|
2010-01-30 04:43:33 -07:00
|
|
|
}
|