perf/bench: Carve out mem routine benchmarking

... so that we can call it multiple times. See next patch.

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

1 files changed, 58 insertions, 62 deletions

diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 6c14afe8c1b1..50991c459ee1 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -135,84 +135,32 @@ struct bench_mem_info {
         const char *const *usage;
 };
 
-static int bench_mem_common(int argc, const char **argv,
-                     const char *prefix __maybe_unused,
-                     struct bench_mem_info *info)
+static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t len, double totallen)
 {
-        int i;
-        size_t len;
-        double totallen;
+        const struct routine *r = &info->routines[r_idx];
         double result_bps[2];
         u64 result_cycle[2];
 
-        argc = parse_options(argc, argv, options,
-                             info->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();
-
-        len = (size_t)perf_atoll((char *)length_str);
-        totallen = (double)len * iterations;
-
         result_cycle[0] = result_cycle[1] = 0ULL;
         result_bps[0] = result_bps[1] = 0.0;
 
-        if ((s64)len <= 0) {
-                fprintf(stderr, "Invalid length:%s\n", length_str);
-                return 1;
-        }
-
-        /* same to without specifying either of prefault and no-prefault */
-        if (only_prefault && no_prefault)
-                only_prefault = no_prefault = false;
-
-        for (i = 0; info->routines[i].name; i++) {
-                if (!strcmp(info->routines[i].name, routine))
-                        break;
-        }
-        if (!info->routines[i].name) {
-                printf("Unknown routine:%s\n", routine);
-                printf("Available routines...\n");
-                for (i = 0; info->routines[i].name; i++) {
-                        printf("\t%s ... %s\n",
-                               info->routines[i].name, info->routines[i].desc);
-                }
-                return 1;
-        }
-
         if (bench_format == BENCH_FORMAT_DEFAULT)
                 printf("# Copying %s Bytes ...\n\n", length_str);
 
         if (!only_prefault && !no_prefault) {
                 /* show both of results */
                 if (use_cycle) {
-                        result_cycle[0] =
-                                info->do_cycle(&info->routines[i], len, false);
-                        result_cycle[1] =
-                                info->do_cycle(&info->routines[i], len, true);
+                        result_cycle[0] = info->do_cycle(r, len, false);
+                        result_cycle[1] = info->do_cycle(r, len, true);
                 } else {
-                        result_bps[0] =
-                                info->do_gettimeofday(&info->routines[i],
-                                                len, false);
-                        result_bps[1] =
-                                info->do_gettimeofday(&info->routines[i],
-                                                len, true);
+                        result_bps[0]   = info->do_gettimeofday(r, len, false);
+                        result_bps[1]   = info->do_gettimeofday(r, len, true);
                 }
         } else {
-                if (use_cycle) {
-                        result_cycle[pf] =
-                                info->do_cycle(&info->routines[i],
-                                                len, only_prefault);
-                } else {
-                        result_bps[pf] =
-                                info->do_gettimeofday(&info->routines[i],
-                                                len, only_prefault);
-                }
+                if (use_cycle)
+                        result_cycle[pf] = info->do_cycle(r, len, only_prefault);
+                else
+                        result_bps[pf] = info->do_gettimeofday(r, len, only_prefault);
         }
 
         switch (bench_format) {
@@ -265,6 +213,54 @@ static int bench_mem_common(int argc, const char **argv,
                 die("unknown format: %d\n", bench_format);
                 break;
         }
+}
+
+static int bench_mem_common(int argc, const char **argv,
+                     const char *prefix __maybe_unused,
+                     struct bench_mem_info *info)
+{
+        int i;
+        size_t len;
+        double totallen;
+
+        argc = parse_options(argc, argv, options,
+                             info->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();
+
+        len = (size_t)perf_atoll((char *)length_str);
+        totallen = (double)len * iterations;
+
+        if ((s64)len <= 0) {
+                fprintf(stderr, "Invalid length:%s\n", length_str);
+                return 1;
+        }
+
+        /* same to without specifying either of prefault and no-prefault */
+        if (only_prefault && no_prefault)
+                only_prefault = no_prefault = false;
+
+        for (i = 0; info->routines[i].name; i++) {
+                if (!strcmp(info->routines[i].name, routine))
+                        break;
+        }
+        if (!info->routines[i].name) {
+                printf("Unknown routine:%s\n", routine);
+                printf("Available routines...\n");
+                for (i = 0; info->routines[i].name; i++) {
+                        printf("\t%s ... %s\n",
+                               info->routines[i].name, info->routines[i].desc);
+                }
+                return 1;
+        }
+
+        __bench_mem_routine(info, i, len, totallen);
 
         return 0;
 }