From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266569AbUH0Qlz (ORCPT ); Fri, 27 Aug 2004 12:41:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266553AbUH0Qlz (ORCPT ); Fri, 27 Aug 2004 12:41:55 -0400 Received: from holomorphy.com ([207.189.100.168]:46495 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S266585AbUH0QlW (ORCPT ); Fri, 27 Aug 2004 12:41:22 -0400 Date: Fri, 27 Aug 2004 09:41:11 -0700 From: William Lee Irwin III To: Albert Cahalan Cc: Roger Luethi , linux-kernel mailing list , Paul Jackson Subject: Re: [0/2][ANNOUNCE] nproc: netlink access to /proc information Message-ID: <20040827164111.GQ2793@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Albert Cahalan , Roger Luethi , linux-kernel mailing list , Paul Jackson References: <20040827122412.GA20052@k3.hellgate.ch> <20040827162308.GP2793@holomorphy.com> <1093624660.431.6128.camel@cube> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1093624660.431.6128.camel@cube> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.6+20040722i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2004-08-27 at 12:23, William Lee Irwin III wrote: >> I see no evidence that this will be a speedup with large numbers of >> processes, as the problematic algorithms are preserved wholesale. On Fri, Aug 27, 2004 at 12:37:40PM -0400, Albert Cahalan wrote: > Well, as far as THAT goes, I thought your tree-based > lookup was nice. I assume you still have the code. > What we got instead was a sort of cached directory > offset computation, which looks great... until you > hit the bad case. I suggest that the people trying to > reduce latency should try "top -d 0 -b >> /dev/null" > while running something like the SDET benchmark. I can resurrect that easily enough. -- wli