forked from luck/tmp_suning_uos_patched
86c2786994
Add support for selecting and processing PERF_RECORD_SWITCH events for use by Intel PT. If they are available, they will be used in preference to sched_switch events. This enables an unprivileged user to trace multi-threaded or multi-process workloads with any level of perf_event_paranoid. However it depends on kernel support for PERF_RECORD_SWITCH. Without this patch, tracing a multi-threaded workload will decode without error but all the data will be attributed to the main thread. Without this patch, tracing a multi-process workload will result in decoder errors because the decoder will not know which executable is executing. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1439458857-30636-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|---|---|---|
| .. | ||
| alpha | ||
| arm | ||
| arm64 | ||
| mips | ||
| parisc | ||
| powerpc | ||
| s390 | ||
| sh | ||
| sparc | ||
| x86 | ||
| xtensa | ||
| Build | ||
| common.c | ||
| common.h | ||