perf tools: Add test for converting perf time to/from TSC
authorAdrian Hunter <adrian.hunter@intel.com>
Fri, 28 Jun 2013 13:22:19 +0000 (16:22 +0300)
committerIngo Molnar <mingo@kernel.org>
Tue, 23 Jul 2013 10:17:59 +0000 (12:17 +0200)
commit3bd5a5fc8c6b9fe769777abf74b0ab5fbd7930b4
treeac509b983fe147d6706449c3bc14031591807585
parentc73deb6aecda2955716f31572516f09d930ef450
perf tools: Add test for converting perf time to/from TSC

The test uses the newly added cap_usr_time_zero and time_zero of
perf_event_mmap_page.  TSC from rdtsc is compared with the time
from 2 perf events.  The test passes if the calculated times are
all in the correct order.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1372425741-1676-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
tools/perf/Makefile
tools/perf/arch/x86/Makefile
tools/perf/arch/x86/util/tsc.c [new file with mode: 0644]
tools/perf/arch/x86/util/tsc.h [new file with mode: 0644]
tools/perf/tests/builtin-test.c
tools/perf/tests/perf-time-to-tsc.c [new file with mode: 0644]
tools/perf/tests/tests.h