From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4857 invoked by alias); 1 Aug 2012 05:10:50 -0000 Received: (qmail 4846 invoked by uid 22791); 1 Aug 2012 05:10:48 -0000 X-SWARE-Spam-Status: No, hits=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from mail-vb0-f41.google.com (HELO mail-vb0-f41.google.com) (209.85.212.41) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 01 Aug 2012 05:10:32 +0000 Received: by vbkv13 with SMTP id v13so7445211vbk.0 for ; Tue, 31 Jul 2012 22:10:32 -0700 (PDT) Received: by 10.58.231.169 with SMTP id th9mr4620169vec.58.1343797831886; Tue, 31 Jul 2012 22:10:31 -0700 (PDT) Received: from [192.168.1.15] (c-24-34-220-253.hsd1.ma.comcast.net. [24.34.220.253]) by mx.google.com with ESMTPS id cy18sm2047859vdb.9.2012.07.31.22.10.30 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 31 Jul 2012 22:10:31 -0700 (PDT) From: halcyonic@gmail.com Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: atomicity of formatted output? Message-Id: <2788A1A0-479D-4244-BD2F-EEDA0DC48C89@eecs.harvard.edu> Date: Wed, 01 Aug 2012 05:10:00 -0000 To: systemtap@sourceware.org Mime-Version: 1.0 (Mac OS X Mail 6.0 \(1485\)) X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2012-q3/txt/msg00119.txt.bz2 Sorry, couldn't find this anywhere obvious in the documentation: are there = any atomicity guarantees (even "best effort" ones) regarding formatted outp= ut from inside probes? It looks to me like output from different probes is= being intermingled occasionally, even if every probe only uses a single pr= intf()...would it help to remove newlines in the printf()? Thanks, Nick