From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 14 Aug 2006 23:42:01 +0400 From: Evgeniy Polyakov Subject: Re: [PATCH 1/1] network memory allocator. Message-ID: <20060814194201.GA10747@2ka.mipt.ru> References: <20060814110359.GA27704@2ka.mipt.ru> <44E0B6E9.8050608@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <44E0B6E9.8050608@hp.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Rick Jones Cc: David Miller , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Mon, Aug 14, 2006 at 10:46:17AM -0700, Rick Jones (rick.jones2@hp.com) wrote: > >Benchmarks with trivial epoll based web server showed noticeble (more > >than 40%) imrovements of the request rates (1600-1800 requests per > >second vs. more than 2300 ones). It can be described by more > >cache-friendly freeing algorithm, by tighter objects packing and thus > >reduced cache line ping-pongs, reduced lookups into higher-layer caches > >and so on. > > Is that an hypothesis, or did you get a chance to gather cache stats > with something like http://www.hp.com/go/Caliper or the like on the > platform(s) you were testing? It is theory based on code observation, design comparison and logic. > rick jones -- Evgeniy Polyakov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org