Messages in this thread Patch in this message | | | From | Hitoshi Mitake <> | Subject | [PATCH v3 4/7] Adding general performance benchmarking subcommand to perf. | Date | Wed, 4 Nov 2009 22:06:24 +0900 |
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This patch series is version 3. But still (and always) comments are welcome.
This patch adds builtin-bench.c builtin-bench.c is a general framework for benchmark suites.
Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de>
--- tools/perf/builtin-bench.c | 128 ++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 128 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..31f4164 --- /dev/null +++ b/tools/perf/builtin-bench.c @@ -0,0 +1,128 @@ +/* + * + * builtin-bench.c + * + * General benchmarking subsystem provided by perf + * + * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> + * + */ + +/* + * + * 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> + +struct bench_suite { + const char *name; + const char *summary; + int (*fn)(int, const char **, const char *); +}; + +static struct bench_suite sched_suites[] = { + { "messaging", + "Benchmark for scheduler and IPC mechanisms", + bench_sched_messaging }, + { "pipe", + "Flood of communication over pipe() between two processes", + bench_sched_pipe }, + { NULL, + NULL, + NULL } +}; + +struct bench_subsys { + const char *name; + const char *summary; + struct bench_suite *suites; +}; + +static struct bench_subsys subsystems[] = { + { "sched", + "scheduler and IPC mechanism", + sched_suites }, + { NULL, + NULL, + NULL } +}; + +static void dump_suites(int subsys_index) +{ + int i; + + printf("List of available suites for %s...\n\n", + subsystems[subsys_index].name); + + for (i = 0; subsystems[subsys_index].suites[i].name; i++) + printf("\t%s: %s\n", + subsystems[subsys_index].suites[i].name, + subsystems[subsys_index].suites[i].summary); + + printf("\n"); + return; +} + +int cmd_bench(int argc, const char **argv, const char *prefix __used) +{ + int i, j, status = 0; + + if (argc < 2) { + /* No subsystem specified. */ + printf("Usage: perf bench <subsystem> <suite> [<options>]\n\n"); + printf("List of available subsystems...\n\n"); + + for (i = 0; subsystems[i].name; i++) + printf("\t%s: %s\n", + subsystems[i].name, subsystems[i].summary); + printf("\n"); + + goto end; + } + + for (i = 0; subsystems[i].name; i++) { + if (strcmp(subsystems[i].name, argv[1])) + continue; + + if (argc < 3) { + /* No suite specified. */ + dump_suites(i); + goto end; + } + + 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; + } + + if (!strcmp(argv[2], "-h") || !strcmp(argv[2], "--help")) { + dump_suites(i); + goto end; + } + + printf("Unknown suite:%s for %s\n", argv[2], argv[1]); + status = 1; + goto end; + } + + printf("Unknown subsystem:%s\n", argv[1]); + status = 1; + +end: + return status; +} -- 1.5.6.5
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