Em Tue, Mar 01, 2016 at 12:59:21PM -0300, Arnaldo Carvalho de Melo escreveu:
> Anyway, 'strace' shows the 4 pairs of mmaps, but it still doesn't work,
> rebooting:
After I reboot, all works:
[root@jouet ~]# perf record -e intel_pt//u -a sleep 0.001
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.119 MB perf.data ]
[root@jouet ~]# perf script | head -10
perf 3797 [002] 8136.590828: 1 branches:u: 0 [unknown] ([unknown])
=> 7fcb3f240707 __GI___ioctl (/usr/lib64/libc-2.22.so)
perf 3797 [002] 8136.590828: 1 branches:u: 7fcb3f24070f __GI___ioctl
(/usr/lib64/libc-2.22.so) => 497e56 perf_evsel__enable (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 497e58 perf_evsel__enable
(/home/acme/bin/perf) => 497e20 perf_evsel__enable (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 497e27 perf_evsel__enable
(/home/acme/bin/perf) => 497e80 perf_evsel__enable (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 497e87 perf_evsel__enable
(/home/acme/bin/perf) => 497e14 perf_evsel__enable (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 497e1b perf_evsel__enable
(/home/acme/bin/perf) => 497e29 perf_evsel__enable (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 497e51 perf_evsel__enable
(/home/acme/bin/perf) => 421d00 ioctl@plt (/home/acme/bin/perf)
perf 3797 [002] 8136.590828: 1 branches:u: 421d00 ioctl@plt
(/home/acme/bin/perf) => 7fcb3f240700 __GI___ioctl (/usr/lib64/libc-2.22.so)
perf 3797 [002] 8136.590828: 1 branches:u: 7fcb3f240705 __GI___ioctl
(/usr/lib64/libc-2.22.so) => 0 [unknown] ([unknown])
perf 3797 [002] 8136.590834: 1 branches:u: 0 [unknown] ([unknown])
=> 7fcb3f240707 __GI___ioctl (/usr/lib64/libc-2.22.so)
[root@jouet ~]#
[root@jouet ~]# perf report -D | tail -20
. 0020: 00 00 00 00 00 00 00 00 07 14 b9 72 66 07 00 00 ...........rf...
. 0030: 03 00 00 00 00 00 00 00 1e 00 00 00 00 00 00 00 ................
3 8136592790535 0x11e688 [0x40]: PERF_RECORD_AUX offset: 0x28 size: 0x28 flags:
0 []
Aggregated stats: (excludes AUX area (e.g. instruction trace) decoded /
synthesized events)
TOTAL events: 8859
MMAP events: 120
COMM events: 509
EXIT events: 1
FORK events: 507
MMAP2 events: 7673
AUX events: 8
ITRACE_START events: 4
SWITCH_CPU_WIDE events: 26
FINISHED_ROUND events: 2
AUXTRACE_INFO events: 1
AUXTRACE events: 8
intel_pt//u stats:
dummy:u stats:
[root@jouet ~]#
Trying a suspend/resume now...
- Arnaldo
