X-Recipient: archive-cygwin@delorie.com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:to:from:subject:date:message-id:references :mime-version:content-type; q=dns; s=default; b=ZFvIkxp7IRrsysME 7FQ44Go+OX1sMRXFmS3yrBagQlGVRIujeUqPWUSjAXtisIo6jV1xwyE19RF1uoWA rWRWEtBoDC67dzohcjt3J6rl7sDrJq1Zag+CkUej2GjAuJ739s49GUpLw+XqDlf+ XJvBCWaTBsUG7f34obnruUsVtYM= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:to:from:subject:date:message-id:references :mime-version:content-type; s=default; bh=Hpi5xLDHy66NOQfFR+YorE NCoTc=; b=R9U26u67sBsUF6zQZjB1EYQVnTK1A48yFS1spnjlG1up+qu4vw9NUP tu0AqOJuduxuuoAHbnVFDQelYlBC40sQX5HKOuV+E327CLNZGac0lV/4f3pj/k4p hKdbUETrr60f7uBorJvnnkRkEPpGPiRtySHOJmPSIjb/2KPZtDfiw= Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: 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 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.1 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,RCVD_IN_PBL,RDNS_NONE,SPF_FAIL autolearn=no version=3.3.2 X-HELO: plane.gmane.org To: cygwin@cygwin.com From: Achim Gratz Subject: Re: xz -9 : Cannot allocate memory Date: Sat, 31 Aug 2013 09:19:52 +0200 Lines: 20 Message-ID: <87sixqiaxz.fsf@Rainer.invalid> References: <20130829151121.GR21571@calimero.vinschen.de> <87ioyowbq9.fsf@Rainer.invalid> <20130830120244.GV21571@calimero.vinschen.de> <20130830174631.GA8831@calimero.vinschen.de> <20130830190048.GA21571@calimero.vinschen.de> <20130830210349.GA975@ednor.casa.cgf.cx> <20130830213932.GA2342@calimero.vinschen.de> Mime-Version: 1.0 Content-Type: text/plain User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-IsSubscribed: yes Corinna Vinschen writes: > That's an awful lot of memory, and it it could easily break later mmap's > or thread stack reservations on 32 bit. Given that the default heap is > 384 Megs already, I would prefer if we reserve subsequent heap memory in > chunks of 1 or 2 Megs only, to lower the pressure on the VM. Sounds good, 2MiB should be what Windows uses for "large pages" on processors that have these (in PAE mode or on x86_64). I'm not sure if it still needs nudging to boot w/ PAE enabled, it would use 4MiB large pages when not in PAE mode, but the large pages are not exposed to the application layer on Win2000 and WinXP anyway. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Wavetables for the Waldorf Blofeld: http://Synth.Stromeko.net/Downloads.html#BlofeldUserWavetables -- 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