On Wed, Apr 15, 2020 at 11:35:51PM -0700, Ian Rogers wrote: > From: Stephane Eranian <eranian@xxxxxxxxxx> > > This patch links perf with the libpfm4 library if it is available > and NO_LIBPFM4 isn't passed to the build. The libpfm4 library > contains hardware event tables for all processors supported by > perf_events. It is a helper library that helps convert from a > symbolic event name to the event encoding required by the > underlying kernel interface. This library is open-source and > available from: http://perfmon2.sf.net. > > With this patch, it is possible to specify full hardware events > by name. Hardware filters are also supported. Events must be > specified via the --pfm-events and not -e option. Both options > are active at the same time and it is possible to mix and match: > > $ perf stat --pfm-events inst_retired:any_p:c=1:i -e cycles .... > > Signed-off-by: Stephane Eranian <eranian@xxxxxxxxxx> > Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx> # perf list ... perf_raw pfm-events r0000 [perf_events raw event syntax: r[0-9a-fA-F]+] skl pfm-events UNHALTED_CORE_CYCLES [Count core clock cycles whenever the clock signal on the specific core is running (not halted)] UNHALTED_REFERENCE_CYCLES please add ':' behind the '* pfm-events' label jirka
