diff options
| author | Davidlohr Bueso <davidlohr@hp.com> | 2014-06-16 11:14:25 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-06-19 16:13:16 -0300 |
| commit | 424e9634887842ac59c1d06d3264aaeb18853c0b (patch) | |
| tree | 3e0d161ee198db2976222f2656ed280f3e4f08b9 /tools/perf/bench/mem-memset.c | |
| parent | d9de84afd1f3a464135abe2b26e66aa86be5af8d (diff) | |
perf bench mem: The -o and -n options are mutually exclusive
-o, --only-prefault Show only the result with page faults before mem*
-n, --no-prefault Show only the result without page faults before mem*
Makes no sense to call together. Applies to both memset and memcpy.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1402942467-10671-8-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/bench/mem-memset.c')
| -rw-r--r-- | tools/perf/bench/mem-memset.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c index 9af79d2b18e5..2a65468619f0 100644 --- a/tools/perf/bench/mem-memset.c +++ b/tools/perf/bench/mem-memset.c @@ -181,6 +181,11 @@ int bench_mem_memset(int argc, const char **argv, argc = parse_options(argc, argv, options, bench_mem_memset_usage, 0); + if (no_prefault && only_prefault) { + fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n"); + return 1; + } + if (use_cycle) init_cycle(); |