Date: Thu, 2 Nov 2017 12:14:43 +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: r325316 - head/tools/tools/syscall_timing Message-ID: <201711021214.vA2CEhAT025931@repo.freebsd.org>
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Author: trasz Date: Thu Nov 2 12:14:42 2017 New Revision: 325316 URL: https://svnweb.freebsd.org/changeset/base/325316 Log: Add benchmark for getresuid(2) - three pointers, although only "output" ones, and quite lightwait. The purpose of this commit, and the previous one, is to be able to measure overhead of pointer arguments - in case you're running a strange architecture where pointers and integers are quite different things at the hardware level. 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 Thu Nov 2 12:13:02 2017 (r325315) +++ head/tools/tools/syscall_timing/syscall_timing.c Thu Nov 2 12:14:42 2017 (r325316) @@ -132,6 +132,22 @@ test_getppid(uintmax_t num, uintmax_t int_arg, const c } uintmax_t +test_getresuid(uintmax_t num, uintmax_t int_arg, const char *path) +{ + uid_t ruid, euid, suid; + uintmax_t i; + + benchmark_start(); + for (i = 0; i < num; i++) { + if (alarm_fired) + break; + (void)getresuid(&ruid, &euid, &suid); + } + benchmark_stop(); + return (i); +} + +uintmax_t test_clock_gettime(uintmax_t num, uintmax_t int_arg, const char *path) { struct timespec ts; @@ -673,6 +689,7 @@ struct test { static const struct test tests[] = { { "getuid", test_getuid }, { "getppid", test_getppid }, + { "getresuid", test_getresuid }, { "clock_gettime", test_clock_gettime }, { "gettimeofday", test_gettimeofday }, { "getpriority", test_getpriority },
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