X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-2.1 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org To: cygwin@cygwin.com From: Nicholas Sherlock Subject: Re: Slow GCC under 64-bit? Date: Sat, 12 Dec 2009 18:12:56 +1300 Lines: 17 Message-ID: References: <24845947.post@talk.nabble.com> <22fefab20912101359n2f208de9we55733c4a10603da@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051201 Thunderbird/1.5 Mnenhy/0.7.3.0 In-Reply-To: <22fefab20912101359n2f208de9we55733c4a10603da@mail.gmail.com> 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 11/12/2009 10:59 a.m., Pedro DeKeratry wrote: > I experience very slow GCC compilation times on win7 64bit computer as > compared to a 3 yr old computer running winXP. The win7 machine has > has a much newer/faster CPU and 2x the memory as the XP machine. The > slowness exists on Cygwin versions 1.5.x and 1.7. I haven't figured > out what the cause is much less a fix. If your new machine is multi-core you might see some benefit if you use the parallel make option with your makefiles - this will run multiple compile steps at the same time, achieving speedup on multi-core systems. On GNU make, for example, you can run 4 jobs at once with: make -j 4 Cheers, Nicholas Sherlock -- 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