X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-1.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,UNPARSEABLE_RELAY X-Spam-Check-By: sourceware.org X-Yahoo-SMTP: jenXL62swBAWhMTL3wnej93oaS0ClBQOAKs8jbEbx_o- Date: Fri, 29 Jul 2011 09:06:45 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: Slow performance Win7/64 Message-ID: <20110729130645.GA28223@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <20110729092602 DOT GB19240 AT calimero DOT vinschen DOT de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On Fri, Jul 29, 2011 at 12:52:47PM +0000, Heiko Elger wrote: >Hello, > >Corinna Vinschen writes: >> >> The slowdown of the code was the result of a patch which was supposed >> to fix a potential race condition. Jojelino's patch looks nice, but >> it might reintroduce a new race. Handle with care. >Oops - what king of race condition do you mean. > >OK - that's a new information for me. >So the current slow implementation is a workaround for another race condition. The signal startup has been very carefully crafted. Starting wait_sig asynchronously could create inability to send signals. I can't check this right now. I should be back near my Windows system on the weekend. cgf -- 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