summaryrefslogtreecommitdiffstats
path: root/tools/perf/builtin-buildid-cache.c
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2016-04-06 14:33:07 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-04-06 14:37:25 -0300
commit11c8e39f5133aed9e0f8ffc624c7d5f64c97bc79 (patch)
tree4199ace4214196c913f65af70c2a57ee83e1e4f5 /tools/perf/builtin-buildid-cache.c
parent7206b900e6e4b7f4c2e766eab64ea1ca5303e421 (diff)
downloadblackbird-op-linux-11c8e39f5133aed9e0f8ffc624c7d5f64c97bc79.tar.gz
blackbird-op-linux-11c8e39f5133aed9e0f8ffc624c7d5f64c97bc79.zip
perf trace: Infrastructure to show COMM strings for syscalls returning PIDs
Starting with clone, waitid and wait4: # trace -e waitid,wait4 1.385 ( 1.385 ms): bash/12122 wait4(upid: -1, stat_addr: 0x7ffe0cee1720, options: UNTRACED|CONTINUED) = 1210 (ls) 1.426 ( 0.002 ms): bash/12122 wait4(upid: -1, stat_addr: 0x7ffe0cee1150, options: NOHANG|UNTRACED|CONTINUED) = 0 3.293 ( 0.604 ms): bash/1211 wait4(upid: -1, stat_addr: 0x7ffe0cee0560 ) = 1214 (sed) 3.342 ( 0.002 ms): bash/1211 wait4(upid: -1, stat_addr: 0x7ffe0cee01d0, options: NOHANG ) = -1 ECHILD No child processes 3.576 ( 0.016 ms): bash/12122 wait4(upid: -1, stat_addr: 0x7ffe0cee0550, options: NOHANG|UNTRACED|CONTINUED) = 1211 (bash) ^C# trace -e clone 0.027 ( 0.000 ms): systemd/1 ... [continued]: clone()) = 1227 (systemd) 0.050 ( 0.000 ms): systemd/1227 ... [continued]: clone()) = 0 ^C[root@jouet ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-lyf5d3y5j15wikjb6pe6ukoi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-buildid-cache.c')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud