On Mon, Mar 23, 2020 at 3:57 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > On Wed, Mar 18, 2020 at 09:11:34PM -0700, Ian Rogers wrote: > > 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 .... > > > > v4 is a rebase on git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git > > branch perf/core and re-adds the tools/build/feature/test-libpfm4.c > > missed in v3. > > ugh.. I might have waited too long, but I can't apply it > anymore on Arnaldo's perf/core, sorry > > jirka No worries, rebase here: https://lkml.org/lkml/2020/3/23/1054 Thanks! Ian
