From owner-cvs-src@FreeBSD.ORG Thu Jul 14 23:52:02 2005 Return-Path: X-Original-To: cvs-src@FreeBSD.org Delivered-To: cvs-src@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9C41716A41C; Thu, 14 Jul 2005 23:52:02 +0000 (GMT) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [204.156.12.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 55CB143D45; Thu, 14 Jul 2005 23:52:02 +0000 (GMT) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by cyrus.watson.org (Postfix) with ESMTP id 9844546B04; Thu, 14 Jul 2005 19:52:01 -0400 (EDT) Date: Fri, 15 Jul 2005 00:52:14 +0100 (BST) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Jeff Roberson In-Reply-To: <20050714164138.X574@10.0.0.1> Message-ID: <20050715004327.B46671@fledge.watson.org> References: <200507141617.j6EGHL2I088805@repoman.freebsd.org> <20050714164138.X574@10.0.0.1> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm uma_core.c uma_int.h X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jul 2005 23:52:02 -0000 On Thu, 14 Jul 2005, Jeff Roberson wrote: > Are you interested in getting those cache improvements into the tree? > The alloc/free to the same bucket change? I am quite interested in them, but have not yet been able to measure a statistically significant improvement with them for the couple of micro-benchmarks I had easily on-hand. There was some measurable change in variance though. I hope to have a chance to look at them more closely in the next week or two. With Joseph Koshy's hwpmc support now working with gprof, we should be able to look a lot more closely at how the caches are interacting with various bits of code. Robert N M Watson > > On Thu, 14 Jul 2005, Robert Watson wrote: > >> rwatson 2005-07-14 16:17:21 UTC >> >> FreeBSD src repository >> >> Modified files: >> sys/vm uma_core.c uma_int.h >> Log: >> In addition to tracking allocs in the zone, also track frees. Add >> a zone free counter, as well as a cache free counter. >> >> MFC after: 1 week >> >> Revision Changes Path >> 1.121 +5 -0 src/sys/vm/uma_core.c >> 1.32 +2 -0 src/sys/vm/uma_int.h >> >