X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-0.0 required=5.0 tests=AWL,BAYES_00,DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED,RCVD_NUMERIC_HELO,RP_MATCHES_RCVD,SPF_HELO_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: sourceware.org To: cygwin@cygwin.com From: jojelino Subject: Re: Relocation patch for cygwin Date: Mon, 26 Sep 2011 03:06:31 +0900 Lines: 15 Message-ID: References: <4D430530.7050401@cwilson.fastmail.fm> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (Windows NT 5.2; rv:8.0a2) Gecko/20110924 Thunderbird/8.0a2 In-Reply-To: Cc: bug-gnulib@gnu.org X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On 2011-09-24 AM 5:10, jojelino wrote: > The attached is report gprof produced when invoked *id* . as you can > see, format_process_maps consumes 70% of the lifetime(0.5s with > profiling overhead). this is reproducible whenever we do > open('/proc/self/maps'). > the problem is, the cost is too expensive. gnulib should care about > cygwin do sacrifice performance for compatibility. > As a workaround, how about rebuild libintl without capacity of relocatable? > because in cygwin libintl is expected to place in /bin so there's no use > of relocatable. > > A bug in profiling code was found and fixed. revised time consumption of format_process_maps is now 60%. http://pastebin.com/yYh6fNbS for detailed gprof result. -- 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