Date: Mon, 16 Apr 2018 17:27:13 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r332625 - stable/11/tools/tools/syscall_timing Message-ID: <201804161727.w3GHRDnn031916@repo.freebsd.org>
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Author: trasz Date: Mon Apr 16 17:27:13 2018 New Revision: 332625 URL: https://svnweb.freebsd.org/changeset/base/332625 Log: MFC r325315: Add select(2) benchmark. It takes four pointers; unfortunately it's somewhat heavy. Modified: stable/11/tools/tools/syscall_timing/syscall_timing.c Directory Properties: stable/11/ (props changed) Modified: stable/11/tools/tools/syscall_timing/syscall_timing.c ============================================================================== --- stable/11/tools/tools/syscall_timing/syscall_timing.c Mon Apr 16 17:26:32 2018 (r332624) +++ stable/11/tools/tools/syscall_timing/syscall_timing.c Mon Apr 16 17:27:13 2018 (r332625) @@ -177,7 +177,6 @@ test_getpriority(uintmax_t num, uintmax_t int_arg, con return (i); } - uintmax_t test_pipe(uintmax_t num, uintmax_t int_arg, const char *path) { @@ -207,6 +206,31 @@ test_pipe(uintmax_t num, uintmax_t int_arg, const char } uintmax_t +test_select(uintmax_t num, uintmax_t int_arg, const char *path) +{ + fd_set readfds, writefds, exceptfds; + struct timeval tv; + uintmax_t i; + int error; + + FD_ZERO(&readfds); + FD_ZERO(&writefds); + FD_ZERO(&exceptfds); + + tv.tv_sec = 0; + tv.tv_usec = 0; + + benchmark_start(); + for (i = 0; i < num; i++) { + if (alarm_fired) + break; + (void)select(0, &readfds, &writefds, &exceptfds, &tv); + } + benchmark_stop(); + return (i); +} + +uintmax_t test_socket_stream(uintmax_t num, uintmax_t int_arg, const char *path) { uintmax_t i; @@ -667,6 +691,7 @@ static const struct test tests[] = { { "gettimeofday", test_gettimeofday }, { "getpriority", test_getpriority }, { "pipe", test_pipe }, + { "select", test_select }, { "socket_local_stream", test_socket_stream, .t_int = PF_LOCAL }, { "socket_local_dgram", test_socket_dgram, .t_int = PF_LOCAL }, { "socketpair_stream", test_socketpair_stream },
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