Date: Thu, 2 Nov 2017 12:13:02 +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: r325315 - head/tools/tools/syscall_timing Message-ID: <201711021213.vA2CD23H025832@repo.freebsd.org>
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Author: trasz Date: Thu Nov 2 12:13:02 2017 New Revision: 325315 URL: https://svnweb.freebsd.org/changeset/base/325315 Log: Add select(2) benchmark. It takes four pointers; unfortunately it's somewhat heavy. 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 12:12:18 2017 (r325314) +++ head/tools/tools/syscall_timing/syscall_timing.c Thu Nov 2 12:13:02 2017 (r325315) @@ -178,7 +178,6 @@ 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) { @@ -208,6 +207,31 @@ 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; @@ -653,6 +677,7 @@ 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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