perf_counter tools: increase limits, fix
NR_CPUS and NR_COUNTERS goes up quadratic ... 1024x4096 was far too ambitious upper limit - go for 256x256 which is still plenty. [ Impact: reduce perf tool memory consumption ] Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: John Kacur <jkacur@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
a3862d3f81
commit
85a9f92002
|
@ -61,8 +61,8 @@ sys_perf_counter_open(struct perf_counter_hw_event *hw_event_uptr,
|
||||||
group_fd, flags);
|
group_fd, flags);
|
||||||
}
|
}
|
||||||
|
|
||||||
#define MAX_COUNTERS 1024
|
#define MAX_COUNTERS 256
|
||||||
#define MAX_NR_CPUS 4096
|
#define MAX_NR_CPUS 256
|
||||||
|
|
||||||
#define EID(type, id) (((__u64)(type) << PERF_COUNTER_TYPE_SHIFT) | (id))
|
#define EID(type, id) (((__u64)(type) << PERF_COUNTER_TYPE_SHIFT) | (id))
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue