From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4526 invoked by alias); 10 Aug 2012 03:45:59 -0000 Received: (qmail 4517 invoked by uid 22791); 10 Aug 2012 03:45:59 -0000 X-SWARE-Spam-Status: No, hits=3.3 required=5.0 tests=AWL,BAYES_05,BOTNET,KHOP_THREADED,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_NO,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from vms173017pub.verizon.net (HELO vms173017pub.verizon.net) (206.46.173.17) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 10 Aug 2012 03:45:45 +0000 Received: from [192.168.1.231] ([unknown] [108.7.54.123]) by vms173017.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0M8I00HGAT3Y8X30@vms173017.mailsrvcs.net> for cygwin@cygwin.com; Thu, 09 Aug 2012 22:45:39 -0500 (CDT) Message-id: <502483DE.3010101@cygwin.com> Date: Fri, 10 Aug 2012 03:52:00 -0000 From: "Larry Hall (Cygwin)" Reply-to: cygwin@cygwin.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-version: 1.0 To: cygwin@cygwin.com Subject: Re: App runs 8x slower on dual core machine (with test case to replicate issue) References: <20120809081720.GQ31757@calimero.vinschen.de> In-reply-to: Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com X-SW-Source: 2012-08/txt/msg00219.txt.bz2 On 8/9/2012 11:29 PM, Zach Saw wrote: > Corinna Vinschen cygwin.com> writes: > >> Thanks for the testcase, but... would you mind to change it to take the >> boost lib out of the picture, by using just plain pthread functions, if >> possible in plain C? > > Apparently someone else has already encountered similar problems in > cygwin perl > (http://www.nntp.perl.org/group/perl.perl5.porters/2011/07/msg174491.html) > last year that went unfixed. Now that you have a test case in C++/Boost, > you're asking for plain pthread/C? The easier it is to demonstrate the problem with a minimum of overhead/code, the quicker the fix. And now that it's reported to the Cygwin list, the problem is at least on the right radar. -- Larry _____________________________________________________________________ A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting annoying in email? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple