On Thu, 2015-12-03 at 14:26 +0000, Patrick Agrain wrote:
>> Hello,
>>
>> perf record no samples in perf.data on an IBM x3250M5.
>> perf stat is OK (in that way that it displays some stats).
> 1) Which stats are displayed? Do the basic events from "perf list hw"
> work?
> perf stat -e cycles -- sleep 1
> perf stat -e instructions -- sleep 1
Hello,
Sorry, but I'm not familiar at all with Gmane interface. I only find this
way to answer to the questions Michael Petlan asked me.
[root@x3250-m5 tmpd]# ./perf319 stat -e cycles -- sleep 1
Performance counter stats for 'sleep 1':
749,662 cycles
1.000436036 seconds time elapsed
[root@x3250-m5 tmpd]# perf stat -e instructions -- sleep 1
-bash: perf: command not found
[root@x3250-m5 tmpd]# ./perf319 stat -e instructions -- sleep 1
Performance counter stats for 'sleep 1':
545,304 instructions
1.000413356 seconds time elapsed
[root@x3250-m5 tmpd]#
> 2) What does "perf list hw" show?
lines 1-7/7 (END)
instructions [Hardware event]
cache-references [Hardware event]
cache-misses [Hardware event]
branch-instructions OR branches [Hardware event]
branch-misses [Hardware event]
bus-cycles [Hardware event]
Hope it helps. Thanks.
Kind regards,
Patrick Agrain
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