From mboxrd@z Thu Jan 1 00:00:00 1970 From: Duy Nguyen Subject: Re: [PATCH v2 0/5] New hash table implementation Date: Thu, 26 Sep 2013 17:26:27 +0700 Message-ID: References: <522FAAC4.2080601@gmail.com> <52416058.90008@gmail.com> <20130926101648.GD6615@paksenarrion.iveqy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: Karsten Blees , Git List To: Fredrik Gustafsson X-From: git-owner@vger.kernel.org Thu Sep 26 12:27:02 2013 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VP8mk-0001gL-6P for gcvg-git-2@plane.gmane.org; Thu, 26 Sep 2013 12:27:02 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756053Ab3IZK06 (ORCPT ); Thu, 26 Sep 2013 06:26:58 -0400 Received: from mail-ob0-f177.google.com ([209.85.214.177]:63903 "EHLO mail-ob0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755521Ab3IZK05 (ORCPT ); Thu, 26 Sep 2013 06:26:57 -0400 Received: by mail-ob0-f177.google.com with SMTP id wp18so1553155obc.8 for ; Thu, 26 Sep 2013 03:26:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=yEpZYjGlFF19N5JTCdHkU98QSEIZ22ElzUJgI7cqrSU=; b=elt86ULs9evWvKKwq2UqYomzm7SldQnDd5fEG6LrhF75sDayFIomsr79sCePhgVNMY xs8W42FQPKRfjSrDsdmaoHxAwUANuc+oLZOJYlxSt+hYHhxW5MoqbDUvUZZx1J+JsEgM v4RyE/Ux/P5yy1KkFclU0BgDI+4vCeNirqw4CsofytGhLYAXhU43+uv3AYRc1dtmk38T RVPz8+6NIQ3Yt55JeL7ZrXsDPzJjPViZm+RQN2kKbIQfG+9creCtXBmrcb/r+xCEb40f PM/yPvsP3+7hFfm7stx+IKailmrgdjJeMiCua2u3S1CYjDrG12Y6x/BYO96oyG9LnTfu 8Uqg== X-Received: by 10.60.34.4 with SMTP id v4mr33667oei.101.1380191217466; Thu, 26 Sep 2013 03:26:57 -0700 (PDT) Received: by 10.182.49.233 with HTTP; Thu, 26 Sep 2013 03:26:27 -0700 (PDT) In-Reply-To: <20130926101648.GD6615@paksenarrion.iveqy.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Thu, Sep 26, 2013 at 5:16 PM, Fredrik Gustafsson wrote: > On Tue, Sep 24, 2013 at 11:50:16AM +0200, Karsten Blees wrote: >> Tests can be reproduced with 'time echo "perfhash[map] 1000" | ./test-hashmap', see test-hashmap.c for definition of method flags. > > So I'm still curious about the actual performance improvements for git. > I runned git describe on the linux kernel with both the old hashmap and > this new one: > > ... > > I can't see any improvements at all here. What do I miss? Am I running > git describe in the wrong way? Does linux.git have too few tags to be > important? I wonder if it makes any difference if there are a lot more refs. I hear gerrit creates a lot but don't know how many. linux-2.6 has ~350 refs. How about increasing the number of refs to 3500 refs? -- Duy