From owner-svn-src-all@freebsd.org Wed Jul 4 13:34:45 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B20AB103716F; Wed, 4 Jul 2018 13:34:45 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A57907B028; Wed, 4 Jul 2018 13:34:44 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3A5E53C88; Wed, 4 Jul 2018 13:34:44 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w64DYhAD007747; Wed, 4 Jul 2018 13:34:43 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w64DYhQu007746; Wed, 4 Jul 2018 13:34:43 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <201807041334.w64DYhQu007746@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Wed, 4 Jul 2018 13:34:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335941 - head/tools/tools/syscall_timing X-SVN-Group: head X-SVN-Commit-Author: trasz X-SVN-Commit-Paths: head/tools/tools/syscall_timing X-SVN-Commit-Revision: 335941 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jul 2018 13:34:46 -0000 Author: trasz Date: Wed Jul 4 13:34:43 2018 New Revision: 335941 URL: https://svnweb.freebsd.org/changeset/base/335941 Log: Add a trivial "pipe ping" (two processes) 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 13:31:55 2018 (r335940) +++ head/tools/tools/syscall_timing/syscall_timing.c Wed Jul 4 13:34:43 2018 (r335941) @@ -31,6 +31,7 @@ #include #include +#include #include #include #include @@ -251,6 +252,52 @@ test_select(uintmax_t num, uintmax_t int_arg __unused, } static uintmax_t +test_pipeping(uintmax_t num, uintmax_t int_arg, const char *path __unused) +{ + char buf[int_arg]; + uintmax_t i; + ssize_t ret; + pid_t pid; + int fd[2], procfd; + + if (pipe(fd) < 0) + err(-1, "pipe"); + + pid = pdfork(&procfd, 0); + if (pid < 0) + err(1, "pdfork"); + + if (pid == 0) { + close(fd[0]); + + for (;;) { + ret = read(fd[1], buf, int_arg); + if ((uintmax_t)ret != int_arg) + err(1, "read"); + ret = write(fd[1], buf, int_arg); + if ((uintmax_t)ret != int_arg) + err(1, "write"); + } + } + + close(fd[1]); + + benchmark_start(); + BENCHMARK_FOREACH(i, num) { + ret = write(fd[0], buf, int_arg); + if ((uintmax_t)ret != int_arg) + err(1, "write"); + ret = read(fd[0], buf, int_arg); + if ((uintmax_t)ret != int_arg) + err(1, "read"); + } + benchmark_stop(); + + close(procfd); + return (i); +} + +static uintmax_t test_socket_stream(uintmax_t num, uintmax_t int_arg, const char *path __unused) { uintmax_t i; @@ -694,6 +741,18 @@ static const struct test tests[] = { { "getppid", test_getppid, .t_flags = 0 }, { "getresuid", test_getresuid, .t_flags = 0 }, { "clock_gettime", test_clock_gettime, .t_flags = 0 }, + { "pipeping_1", test_pipeping, .t_flags = 0, .t_int = 1 }, + { "pipeping_10", test_pipeping, .t_flags = 0, .t_int = 10 }, + { "pipeping_100", test_pipeping, .t_flags = 0, .t_int = 100 }, + { "pipeping_1000", test_pipeping, .t_flags = 0, .t_int = 1000 }, + { "pipeping_10000", test_pipeping, .t_flags = 0, .t_int = 10000 }, +#ifdef notyet + /* + * XXX: Doesn't work; kernel pipe buffer too small? + */ + { "pipeping_100000", test_pipeping, .t_flags = 0, .t_int = 100000 }, + { "pipeping_1000000", test_pipeping, .t_flags = 0, .t_int = 1000000 }, + #endif { "gettimeofday", test_gettimeofday, .t_flags = 0 }, { "getpriority", test_getpriority, .t_flags = 0 }, { "getprogname", test_getprogname, .t_flags = 0 },