From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin Langhoff" Subject: Re: pack operation is thrashing my server Date: Thu, 14 Aug 2008 11:54:06 +1200 Message-ID: <46a038f90808131654r228a1b57y964f7cdb9c77be5f@mail.gmail.com> References: <87vdy71i6w.fsf@basil.nowhere.org> <1EE44425-6910-4C37-9242-54D0078FC377@adacore.com> <20080813031503.GC5855@spearce.org> <70550C21-8358-4BEF-A7BA-3A41C1ACB346@adacore.com> <20080813150425.GC3782@spearce.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "Shawn O. Pearce" , "Jakub Narebski" , "Nicolas Pitre" , "Geert Bosch" , "Andi Kleen" , "Ken Pratt" , git@vger.kernel.org To: "David Tweed" X-From: git-owner@vger.kernel.org Thu Aug 14 01:55:14 2008 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1KTQBN-0006Pt-2V for gcvg-git-2@gmane.org; Thu, 14 Aug 2008 01:55:13 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752908AbYHMXyK (ORCPT ); Wed, 13 Aug 2008 19:54:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752663AbYHMXyI (ORCPT ); Wed, 13 Aug 2008 19:54:08 -0400 Received: from wf-out-1314.google.com ([209.85.200.172]:59740 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752001AbYHMXyH (ORCPT ); Wed, 13 Aug 2008 19:54:07 -0400 Received: by wf-out-1314.google.com with SMTP id 27so305197wfd.4 for ; Wed, 13 Aug 2008 16:54:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=rUevlIK7FVoLZRb3+XCwPUYgQKt0jQAybgHWJQqKUjQ=; b=RLPf7+BXOPblLnlSGYsM85aMTtT/hV4JZ6n24dam6oKDVcsnjqtH7JJpsz//6HNVMQ Yq0ttPTy8rbSxJJiyLmqvYfP/YeViV4VhDhF6ZmsJ42xCxNw1luLVgORO2YY8vXDNzw8 U24l+ghTyKQIwzM5mCJbUolE2rlg5wv5B5lKg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=Fzs5FXPb8E4C6knuUabXyrEq05+h4A2roB/TgTFJHl/YY67JRN+jj/Hae/bBLEiOMn 6Ox9PSeI1Cha9tHEik3TR/e2gT1+SqVh3euA420E2pR2iasFqeIYrhfIXU4uRWLK023g xzmfs8Tf36IbeokUvdRYu1Efs3RFUJudzOMdw= Received: by 10.142.135.16 with SMTP id i16mr175915wfd.286.1218671646122; Wed, 13 Aug 2008 16:54:06 -0700 (PDT) Received: by 10.142.43.6 with HTTP; Wed, 13 Aug 2008 16:54:06 -0700 (PDT) In-Reply-To: Content-Disposition: inline Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Thu, Aug 14, 2008 at 3:26 AM, David Tweed wrote: > FWIW, PDF format is a mix of sections of uncompressed higher level > ASCII notation and sections of compressed actual glyph/location data The PDF spec allows compression of the "text" sections - if a PDF is uncompressed, it's a good candidate for delta & compression. Unfortunately, within the same file you might have an embedded JPEG. cheers, m -- martin.langhoff@gmail.com martin@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff