diff options
Diffstat (limited to 'tools/perf/bench')
-rw-r--r-- | tools/perf/bench/Build | 1 | ||||
-rw-r--r-- | tools/perf/bench/bench.h | 1 | ||||
-rw-r--r-- | tools/perf/bench/uprobe.c | 80 |
3 files changed, 82 insertions, 0 deletions
diff --git a/tools/perf/bench/Build b/tools/perf/bench/Build index 0f158dc8139b..47412d47dccf 100644 --- a/tools/perf/bench/Build +++ b/tools/perf/bench/Build @@ -16,6 +16,7 @@ perf-y += inject-buildid.o perf-y += evlist-open-close.o perf-y += breakpoint.o perf-y += pmu-scan.o +perf-y += uprobe.o perf-$(CONFIG_X86_64) += mem-memcpy-x86-64-asm.o perf-$(CONFIG_X86_64) += mem-memset-x86-64-asm.o diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h index 0d2b65976212..201311f75c96 100644 --- a/tools/perf/bench/bench.h +++ b/tools/perf/bench/bench.h @@ -42,6 +42,7 @@ int bench_inject_build_id(int argc, const char **argv); int bench_evlist_open_close(int argc, const char **argv); int bench_breakpoint_thread(int argc, const char **argv); int bench_breakpoint_enable(int argc, const char **argv); +int bench_uprobe_baseline(int argc, const char **argv); int bench_pmu_scan(int argc, const char **argv); #define BENCH_FORMAT_DEFAULT_STR "default" diff --git a/tools/perf/bench/uprobe.c b/tools/perf/bench/uprobe.c new file mode 100644 index 000000000000..707174220a76 --- /dev/null +++ b/tools/perf/bench/uprobe.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * uprobe.c + * + * uprobe benchmarks + * + * Copyright (C) 2023, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> + */ +#include "../perf.h" +#include "../util/util.h" +#include <subcmd/parse-options.h> +#include "../builtin.h" +#include "bench.h" +#include <linux/time64.h> + +#include <inttypes.h> +#include <stdio.h> +#include <sys/time.h> +#include <sys/types.h> +#include <time.h> +#include <unistd.h> +#include <stdlib.h> + +#define LOOPS_DEFAULT 1000 +static int loops = LOOPS_DEFAULT; + +static const struct option options[] = { + OPT_INTEGER('l', "loop", &loops, "Specify number of loops"), + OPT_END() +}; + +static const char * const bench_uprobe_usage[] = { + "perf bench uprobe <options>", + NULL +}; + +static int bench_uprobe(int argc, const char **argv) +{ + const char *name = "usleep(1000)", *unit = "usec"; + struct timespec start, end; + u64 diff; + int i; + + argc = parse_options(argc, argv, options, bench_uprobe_usage, 0); + + clock_gettime(CLOCK_REALTIME, &start); + + for (i = 0; i < loops; i++) { + usleep(USEC_PER_MSEC); + } + + clock_gettime(CLOCK_REALTIME, &end); + + diff = end.tv_sec * NSEC_PER_SEC + end.tv_nsec - (start.tv_sec * NSEC_PER_SEC + start.tv_nsec); + diff /= NSEC_PER_USEC; + + switch (bench_format) { + case BENCH_FORMAT_DEFAULT: + printf("# Executed %'d %s calls\n", loops, name); + printf(" %14s: %'" PRIu64 " %ss\n\n", "Total time", diff, unit); + printf(" %'.3f %ss/op\n", (double)diff / (double)loops, unit); + break; + + case BENCH_FORMAT_SIMPLE: + printf("%" PRIu64 "\n", diff); + break; + + default: + /* reaching here is something of a disaster */ + fprintf(stderr, "Unknown format:%d\n", bench_format); + exit(1); + } + + return 0; +} + +int bench_uprobe_baseline(int argc, const char **argv) +{ + return bench_uprobe(argc, argv); +} |