perf_counter tools: add 'perf record' command

Move perf-record.c into the perf suite of commands.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-04-20 15:58:01 +02:00
parent 1d8c8b209e
commit e33e0a4373
6 changed files with 73 additions and 30 deletions

View file

@ -0,0 +1,63 @@
perf-record(1)
==========
NAME
----
perf-record - Run a command and record its profile into output.perf
SYNOPSIS
--------
[verse]
'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
DESCRIPTION
-----------
This command runs a command and gathers a performance counter profile
from it, into output.perf - without displaying anything.
This file can then be inspected later on, using 'perf report'.
OPTIONS
-------
<command>...::
Any command you can specify in a shell.
-e::
--event=::
0:0: cpu-cycles
0:0: cycles
0:1: instructions
0:2: cache-references
0:3: cache-misses
0:4: branch-instructions
0:4: branches
0:5: branch-misses
0:6: bus-cycles
1:0: cpu-clock
1:1: task-clock
1:2: page-faults
1:2: faults
1:5: minor-faults
1:6: major-faults
1:3: context-switches
1:3: cs
1:4: cpu-migrations
1:4: migrations
rNNN: raw PMU events (eventsel+umask)
-a::
system-wide collection
-l::
scale counter values
Configuration
-------------
EXAMPLES
--------
SEE ALSO
--------
linkperf:git-stat[1]

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@ -309,6 +309,7 @@ LIB_OBJS += usage.o
LIB_OBJS += wrapper.o
BUILTIN_OBJS += builtin-help.o
BUILTIN_OBJS += builtin-record.o
BUILTIN_OBJS += builtin-stat.o
BUILTIN_OBJS += builtin-top.o

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@ -81,16 +81,12 @@
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
asmlinkage int sys_perf_counter_open(
extern asmlinkage int sys_perf_counter_open(
struct perf_counter_hw_event *hw_event_uptr __user,
pid_t pid,
int cpu,
int group_fd,
unsigned long flags)
{
return syscall(
__NR_perf_counter_open, hw_event_uptr, pid, cpu, group_fd, flags);
}
unsigned long flags);
#define MAX_COUNTERS 64
#define MAX_NR_CPUS 256
@ -119,26 +115,6 @@ const unsigned int default_count[] = {
10000,
};
static char *hw_event_names[] = {
"CPU cycles",
"instructions",
"cache references",
"cache misses",
"branches",
"branch misses",
"bus cycles",
};
static char *sw_event_names[] = {
"cpu clock ticks",
"task clock ticks",
"pagefaults",
"context switches",
"CPU migrations",
"minor faults",
"major faults",
};
struct event_symbol {
__u64 event;
char *symbol;
@ -414,7 +390,7 @@ static void sigchld_handler(int sig)
done = 1;
}
int main(int argc, char *argv[])
int cmd_record(int argc, const char **argv)
{
struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS];
struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS];

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@ -14,6 +14,7 @@ extern void prune_packed_objects(int);
extern int read_line_with_nul(char *buf, int size, FILE *file);
extern int check_pager_config(const char *cmd);
extern int cmd_top(int argc, const char **argv, const char *prefix);
extern int cmd_record(int argc, const char **argv, const char *prefix);
extern int cmd_stat(int argc, const char **argv, const char *prefix);
extern int cmd_top(int argc, const char **argv, const char *prefix);
#endif

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@ -1,5 +1,6 @@
# List of known perf commands.
# command name category [deprecated] [common]
perf-top mainporcelain common
perf-record mainporcelain common
perf-stat mainporcelain common
perf-top mainporcelain common

View file

@ -248,8 +248,9 @@ static void handle_internal_command(int argc, const char **argv)
{
const char *cmd = argv[0];
static struct cmd_struct commands[] = {
{ "top", cmd_top, 0 },
{ "record", cmd_record, 0 },
{ "stat", cmd_stat, 0 },
{ "top", cmd_top, 0 },
};
int i;
static const char ext[] = STRIP_EXTENSION;