From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 109708 invoked by alias); 6 Jun 2018 20:34:40 -0000 Mailing-List: contact elfutils-devel-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Post: List-Help: List-Subscribe: Sender: elfutils-devel-owner@sourceware.org Received: (qmail 109644 invoked by uid 89); 6 Jun 2018 20:34:39 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Checked: by ClamAV 0.99.4 on sourceware.org X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=Hx-languages-length:368, H*F:U*mark X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on sourceware.org X-Spam-Level: X-HELO: gnu.wildebeest.org Received: from wildebeest.demon.nl (HELO gnu.wildebeest.org) (212.238.236.112) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 06 Jun 2018 20:34:37 +0000 Received: from librem.wildebeest.org (deer0x01.wildebeest.org [172.31.17.131]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by gnu.wildebeest.org (Postfix) with ESMTPSA id 10A1B30DD240 for ; Wed, 6 Jun 2018 22:34:34 +0200 (CEST) Received: by librem.wildebeest.org (Postfix, from userid 1000) id CD17E13FEEA; Wed, 6 Jun 2018 22:34:34 +0200 (CEST) Date: Wed, 06 Jun 2018 20:34:00 -0000 From: Mark Wielaard To: elfutils-devel@sourceware.org Subject: Re: [PATCH] readelf: Call __fsetlocking (stdout, FSETLOCKING_BYCALLER). Message-ID: <20180606203434.GA31910@wildebeest.org> References: <1528131293-2191-1-git-send-email-mark@klomp.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1528131293-2191-1-git-send-email-mark@klomp.org> User-Agent: Mutt/1.9.5 (2018-04-13) X-Spam-Flag: NO X-IsSubscribed: yes X-SW-Source: 2018-q2/txt/msg00158.txt.bz2 On Mon, Jun 04, 2018 at 06:54:53PM +0200, Mark Wielaard wrote: > We only call printf on stdout from one thread, so we don't need internal > stdio locking for stdout. > > On my machine eu-readelf -N --debug-dump=info libxul.so > /dev/null > goes from 65 seconds to 63 seconds. Pushed to master.