Hi,
I want to count the uncore events on a specified process id (Intel Xeon E5-2667
machine). I tried the following perf command to count the CAS_COUNT.RD for
process 3460, but it gets stuck with the following output:
#perf stat -e
uncore_imc_0/event=0x4,umask=0x3/,uncore_imc_1/event=0x4,umask=0x3/,uncore_imc_2/event=0x4,umask=0x3/,uncore_imc_3/event=0x4,umask=0x3/
-p 3460 sleep 1
Performance counter stats for process id '3460':
0 uncore_imc_0/event=0x4,umask=0x3/
0 uncore_imc_1/event=0x4,umask=0x3/
0 uncore_imc_2/event=0x4,umask=0x3/
0 uncore_imc_3/event=0x4,umask=0x3/
1.000750918 seconds time elapsed
*** glibc detected *** /usr/lib/linux-tools/3.13.0-32-generic/perf: free():
invalid next size (fast): 0x0000000000aaee20 ***
*** glibc detected *** /usr/lib/linux-tools/3.13.0-32-generic/perf: malloc():
memory corruption: 0x0000000000aaf3d0 ***
However, if I switched the perf to the system-wide counting mode, it works:
#perf stat -e
uncore_imc_0/event=0x4,umask=0x3/,uncore_imc_1/event=0x4,umask=0x3/,uncore_imc_2/event=0x4,umask=0x3/,uncore_imc_3/event=0x4,umask=0x3/
-a sleep 1
Performance counter stats for 'system wide':
4,487 uncore_imc_0/event=0x4,umask=0x3/
3,721 uncore_imc_1/event=0x4,umask=0x3/
4,885 uncore_imc_2/event=0x4,umask=0x3/
212,513 uncore_imc_3/event=0x4,umask=0x3/
1.000788447 seconds time elapsed
Can anyone help me with this problem?
Thank you very much.
--Tianwei
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