From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00BADC4320A for ; Mon, 9 Aug 2021 04:33:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9A3C60041 for ; Mon, 9 Aug 2021 04:33:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232992AbhHIEdn (ORCPT ); Mon, 9 Aug 2021 00:33:43 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:59006 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232956AbhHIEdm (ORCPT ); Mon, 9 Aug 2021 00:33:42 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 9309721EF7; Mon, 9 Aug 2021 04:33:21 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id B4F7E13398; Mon, 9 Aug 2021 04:33:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id yCCuIg+wEGEfDQAAMHmgww (envelope-from ); Mon, 09 Aug 2021 04:33:19 +0000 From: Davidlohr Bueso To: acme@kernel.org Cc: mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, dave@stgolabs.net, Davidlohr Bueso Subject: [PATCH 5/7] perf/bench-futex, requeue: Add --broadcast option Date: Sun, 8 Aug 2021 21:32:59 -0700 Message-Id: <20210809043301.66002-6-dave@stgolabs.net> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210809043301.66002-1-dave@stgolabs.net> References: <20210809043301.66002-1-dave@stgolabs.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Such that all threads are requeued to uaddr2 in a single futex_cmp_requeue(), unlike the default, which is 1. Signed-off-by: Davidlohr Bueso --- tools/perf/bench/futex-requeue.c | 4 ++++ tools/perf/bench/futex.h | 1 + 2 files changed, 5 insertions(+) diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index 88cb7e2a6729..80f40ee92b53 100644 --- a/tools/perf/bench/futex-requeue.c +++ b/tools/perf/bench/futex-requeue.c @@ -52,6 +52,7 @@ static const struct option options[] = { OPT_BOOLEAN( 's', "silent", ¶ms.silent, "Silent mode: do not display data/details"), OPT_BOOLEAN( 'S', "shared", ¶ms.fshared, "Use shared futexes instead of private ones"), OPT_BOOLEAN( 'm', "mlockall", ¶ms.mlockall, "Lock all current and future memory"), + OPT_BOOLEAN( 'B', "broadcast", ¶ms.broadcast, "Requeue all threads at once"), OPT_END() }; @@ -153,6 +154,9 @@ int bench_futex_requeue(int argc, const char **argv) if (params.nrequeue > params.nthreads) params.nrequeue = params.nthreads; + if (params.broadcast) + params.nrequeue = params.nthreads; + printf("Run summary [PID %d]: Requeuing %d threads (from [%s] %p to %p), " "%d at a time.\n\n", getpid(), params.nthreads, params.fshared ? "shared":"private", &futex1, &futex2, params.nrequeue); diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h index 1c8fa469993f..36f158650edf 100644 --- a/tools/perf/bench/futex.h +++ b/tools/perf/bench/futex.h @@ -21,6 +21,7 @@ struct bench_futex_parameters { bool fshared; bool mlockall; bool multi; /* lock-pi */ + bool broadcast; /* requeue */ unsigned int runtime; /* seconds*/ unsigned int nthreads; unsigned int nfutexes; -- 2.26.2