From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dan Williams" Subject: Re: stripe_cache_size and performance Date: Mon, 25 Jun 2007 15:19:37 -0700 Message-ID: References: <5d96567b0706211242p7f03bd1cw9102ae3e44d67cee@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: Jon Nelson Cc: Linux RAID Mailing List List-Id: linux-raid.ids > 7. And now, the question: the best absolute 'write' performance comes > with a stripe_cache_size value of 4096 (for my setup). However, any > value of stripe_cache_size above 384 really, really hurts 'check' (and > rebuild, one can assume) performance. Why? > Question: After performance goes "bad" does it go back up if you reduce the size back down to 384? > -- > Jon Nelson Dan