Date: Wed, 4 Jul 2018 14:18:12 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335955 - head/tools/tools/syscall_timing Message-ID: <201807041418.w64EICGu029566@repo.freebsd.org>
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Author: trasz Date: Wed Jul 4 14:18:12 2018 New Revision: 335955 URL: https://svnweb.freebsd.org/changeset/base/335955 Log: Add a very simple memcpy benchmark. Obtained from: CheriBSD MFC after: 2 weeks Sponsored by: DARPA, AFRL Modified: head/tools/tools/syscall_timing/syscall_timing.c Modified: head/tools/tools/syscall_timing/syscall_timing.c ============================================================================== --- head/tools/tools/syscall_timing/syscall_timing.c Wed Jul 4 14:15:48 2018 (r335954) +++ head/tools/tools/syscall_timing/syscall_timing.c Wed Jul 4 14:18:12 2018 (r335955) @@ -343,6 +343,26 @@ test_getuid(uintmax_t num, uintmax_t int_arg __unused, } static uintmax_t +test_memcpy(uintmax_t num, uintmax_t int_arg, const char *path __unused) +{ + char buf[int_arg], buf2[int_arg]; + uintmax_t i; + + benchmark_start(); + BENCHMARK_FOREACH(i, num) { + /* + * Copy the memory there and back, to match the total amount + * moved by pipeping/pipepingtd tests. + */ + memcpy(buf2, buf, int_arg); + memcpy(buf, buf2, int_arg); + } + benchmark_stop(); + + return (i); +} + +static uintmax_t test_open_close(uintmax_t num, uintmax_t int_arg __unused, const char *path) { uintmax_t i; @@ -833,6 +853,13 @@ static const struct test tests[] = { { "getresuid", test_getresuid, .t_flags = 0 }, { "gettimeofday", test_gettimeofday, .t_flags = 0 }, { "getuid", test_getuid, .t_flags = 0 }, + { "memcpy_1", test_memcpy, .t_flags = 0, .t_int = 1 }, + { "memcpy_10", test_memcpy, .t_flags = 0, .t_int = 10 }, + { "memcpy_100", test_memcpy, .t_flags = 0, .t_int = 100 }, + { "memcpy_1000", test_memcpy, .t_flags = 0, .t_int = 1000 }, + { "memcpy_10000", test_memcpy, .t_flags = 0, .t_int = 10000 }, + { "memcpy_100000", test_memcpy, .t_flags = 0, .t_int = 100000 }, + { "memcpy_1000000", test_memcpy, .t_flags = 0, .t_int = 1000000 }, { "open_close", test_open_close, .t_flags = FLAG_PATH }, { "open_read_close_1", test_open_read_close, .t_flags = FLAG_PATH, .t_int = 1 },
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