Adding general performance benchmarking subcommand to perf.
This patch adds builtin-bench.c
builtin-bench.c is general framework for benchmark suites.
Signed-off-by: Hitoshi Mitake <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
---
tools/perf/builtin-bench.c | 84 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 84 insertions(+), 0 deletions(-)
create mode 100644 tools/perf/builtin-bench.c
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
new file mode 100644
index 0000000..1b11120
--- /dev/null
+++ b/tools/perf/builtin-bench.c
@@ -0,0 +1,84 @@
+/*
+ *
+ * builtin-bench.c
+ *
+ * General benchmarking subsystem provided by perf
+ *
+ * Copyright (C) 2009, Hitoshi Mitake <[email protected]>
+ *
+ */
+
+/*
+ *
+ * Available subsystem list:
+ * sched ... scheduler and IPC mechanism
+ *
+ */
+
+#include "perf.h"
+#include "util/util.h"
+#include "util/parse-options.h"
+#include "builtin.h"
+#include "bench/bench.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static const char * const bench_sched_usage[] = {
+ "perf bench sched <options>",
+ NULL
+};
+
+struct bench_suite {
+ const char *name;
+ int (*fn)(int, const char **, const char *);
+};
+
+static struct bench_suite sched_suites[] = {
+ { "messaging", bench_sched_messaging },
+ { "pipe", bench_sched_pipe },
+ { NULL, NULL }
+};
+
+struct bench_subsys {
+ const char *name;
+ struct bench_suite *suites;
+};
+
+static struct bench_subsys subsystems[] = {
+ { "sched", sched_suites },
+ { NULL, NULL }
+};
+
+int cmd_bench(int argc, const char **argv, const char *prefix __used)
+{
+ int i, j, status = 0;
+
+ if (argc < 3) {
+ printf("Usage: perf bench <subsystem> <suite> [<options>]\n");
+ goto end;
+ }
+
+ for (i = 0; subsystems[i].name; i++) {
+ if (strcmp(subsystems[i].name, argv[1]))
+ continue;
+
+ for (j = 0; subsystems[i].suites[j].name; j++) {
+ if (strcmp(subsystems[i].suites[j].name, argv[2]))
+ continue;
+
+ status = subsystems[i].suites[j].fn(argc - 2,
+ argv + 2, prefix);
+ goto end;
+ }
+ }
+
+ /* No subsystem matched. */
+ fprintf(stderr, "Unknown pair... subsystem:%s & suite:%s\n",
+ argv[1], argv[2]);
+ status = 1;
+
+end:
+ return status;
+}
--
1.5.6.5