perf/bench: Add -r all so that you can run all mem* routines

perf bench mem mem{set,cpy} -r all thus runs all available mem
benchmarking routines.

Reviewed-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <bp@suse.de>

1 files changed, 9 insertions, 1 deletions

diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 50991c459ee1..eca3d0e49582 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -36,7 +36,7 @@ static const struct option options[] = {
                     "Specify length of memory to copy. "
                     "Available units: B, KB, MB, GB and TB (upper and lower)"),
         OPT_STRING('r', "routine", &routine, "default",
-                    "Specify routine to copy"),
+                    "Specify routine to copy, \"all\" runs all available routines"),
         OPT_INTEGER('i', "iterations", &iterations,
                     "repeat memcpy() invocation this number of times"),
         OPT_BOOLEAN('c', "cycle", &use_cycle,
@@ -144,6 +144,8 @@ static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t l
         result_cycle[0] = result_cycle[1] = 0ULL;
         result_bps[0] = result_bps[1] = 0.0;
 
+        printf("Routine %s (%s)\n", r->name, r->desc);
+
         if (bench_format == BENCH_FORMAT_DEFAULT)
                 printf("# Copying %s Bytes ...\n\n", length_str);
 
@@ -246,6 +248,12 @@ static int bench_mem_common(int argc, const char **argv,
         if (only_prefault && no_prefault)
                 only_prefault = no_prefault = false;
 
+        if (!strncmp(routine, "all", 3)) {
+                for (i = 0; info->routines[i].name; i++)
+                        __bench_mem_routine(info, i, len, totallen);
+                return 0;
+        }
+
         for (i = 0; info->routines[i].name; i++) {
                 if (!strcmp(info->routines[i].name, routine))
                         break;