Messages in this thread | | | Date | Tue, 22 Aug 2017 14:00:43 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH v2 05/19] perf, tools: Support weak groups |
| |
> also if I put 'cycles' instead of the l2_rqsts.all_code_rd, > I get clean open but 'not counted' as result.. I wonder > there's some counter scheduling issue > > [root@krava perf]# ./perf stat -v -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,cycles}:W' -a sleep 1 > Using CPUID GenuineIntel-6-3D > l1d.replacement -> cpu/umask=0x1,period=2000003,event=0x51/ > l2_lines_in.all -> cpu/umask=0x7,period=100003,event=0xf1/ > branches: 0 4004293853 0 > branch-misses: 0 4004293853 0 > l1d.replacement: 0 4004293853 0 > l2_lines_in.all: 0 4004293853 0 > cycles: 0 4004293853 0 > > Performance counter stats for 'system wide': > > <not counted> branches (0.00%) > <not counted> branch-misses (0.00%) > <not counted> l1d.replacement (0.00%) > <not counted> l2_lines_in.all (0.00%) > <not counted> cycles (0.00%) > > 1.001088589 seconds time elapsed
Cannot reproduce on my system
Does it work without group or a normal group?
./perf stat -v -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,cycles}:W' Using CPUID GenuineIntel-6-3E l1d.replacement -> cpu/umask=0x1,period=2000003,event=0x51/ l2_lines_in.all -> cpu/umask=0x7,period=100003,event=0xf1/ ^Cbranches: 105004611 27393959413 27393959413 branch-misses: 5854172 27393959413 27393959413 l1d.replacement: 13935607 27393959413 27393959413 l2_lines_in.all: 24987238 27393959413 27393959413 cycles: 1259015810 27393959413 27393959413
Performance counter stats for 'system wide':
105,004,611 branches 5,854,172 branch-misses # 5.58% of all branches 13,935,607 l1d.replacement 24,987,238 l2_lines_in.all 1,259,015,810 cycles
2.282966609 seconds time elapsed
| |