Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2209877imu; Tue, 6 Nov 2018 10:42:13 -0800 (PST) X-Google-Smtp-Source: AJdET5dUJGb3wL6X9V9nxpikBSVV0N94cTGeYYvSADPNA7Q6Lktn6LpM1TtyqAyZHk1nF4h+oUKd X-Received: by 2002:a17:902:1105:: with SMTP id d5-v6mr28278015pla.28.1541529733401; Tue, 06 Nov 2018 10:42:13 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1541529733; cv=none; d=google.com; s=arc-20160816; b=JGlaEjgdv8871RoGyH7p+B7fyIZVQ4NG/mqJk/t+Em+pNL9t4tx0DwT4V76kU+Xefp sQyTlyY5rezTGdOEFFFf+Go0iftaqJnfxNuOG2iOP6oxu5iFPx+iH7d5M+AXgLGycdAH Cx5mne6RDGTeOrbw6QBN0msHuUKDzV2Jx9Oejg/G4sZagBPTEH8vTEf9b3nSG+K3aTUx 2qI+zAIBSApYrfOBqURT8kDRDdM0On4epmeDLcXH28eUw1HA4a8q8vdV4slGiC9uwzan /W/peeX806Pr/NvqbtlCCeZJgnbNq+NwFC9ssCSc59prSsVWGE0IqV0Q2DUa0mjM4uVH NtXQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=mFpXqTlHS3IIOYHu9uUA+HvkpI/b5BY12I9rgSzP5QM=; b=v7Ri7xPU50klpH8QfjpZ91OhcbLUILC3VCUeWw42HxOA4ttdd8CYfjCCr4NhjXYXYG qcZCEmnYCWmkq3UGekCQtdpCMj4XrNNuIBry5NZY0F5/LgKB9LL/JNlJEeX+BBOewvlO otg45gZuNpqXlQpDDI3LwefL2kU16EJGjOSp22Z2sYAFRjcRbiCiwrI9RnIXbOsB3cTS wVko9OOn2FnPCPPH2A1+VPZicih6J6xViU8TDhqAIqBT7rrJexpwyYyntAYB5vTiAKxY UTeTpgTtGVPaWTRqMG6r5HDcmnW1wlZQEN/9Opg4hDDPX5AbCjsMrE9kWkY+FB6XlA+I 2nWA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w9si7321582pgg.72.2018.11.06.10.41.58; Tue, 06 Nov 2018 10:42:13 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388065AbeKGDu2 (ORCPT + 99 others); Tue, 6 Nov 2018 22:50:28 -0500 Received: from mx2.suse.de ([195.135.220.15]:60792 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387741AbeKGDu2 (ORCPT ); Tue, 6 Nov 2018 22:50:28 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7E462AB64; Tue, 6 Nov 2018 18:23:56 +0000 (UTC) Date: Tue, 6 Nov 2018 10:23:49 -0800 From: Davidlohr Bueso To: acme@kernel.org Cc: akpm@linux-foundation.org, jbaron@akamai.com, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: Re: [PATCH 1/2] perf-bench: Add epoll parallel epoll_wait benchmark Message-ID: <20181106182349.thdkpvshkna5vd7o@linux-r8p5> References: <20181106152226.20883-1-dave@stgolabs.net> <20181106152226.20883-2-dave@stgolabs.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20181106152226.20883-2-dave@stgolabs.net> User-Agent: NeoMutt/20180323 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mind this fixlet for using et/oneshot and the multiq option. diff --git a/tools/perf/bench/epoll-wait.c b/tools/perf/bench/epoll-wait.c index c4c5ef60feb4..4e4efc5cfe22 100644 --- a/tools/perf/bench/epoll-wait.c +++ b/tools/perf/bench/epoll-wait.c @@ -215,13 +215,13 @@ static void *workerfn(void *arg) if (et) { ev.events = EPOLLIN | EPOLLET; - ret = epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev); + ret = epoll_ctl(efd, EPOLL_CTL_ADD, fd, &ev); } if (oneshot) { /* rearm the file descriptor with a new event mask */ ev.events |= EPOLLIN | EPOLLONESHOT; - ret = epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &ev); + ret = epoll_ctl(efd, EPOLL_CTL_MOD, fd, &ev); } ops++; @@ -249,7 +249,7 @@ static void nest_epollfd(struct worker *w) for (i = 0; i < nested; i++) { epollfdp[i] = epoll_create(1); - if (epollfd < 0) + if (epollfdp[i] < 0) err(EXIT_FAILURE, "epoll_create"); }