From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Reiserfs with Samba vs NetApp Filer Date: Tue, 15 Oct 2002 17:42:16 +0400 Message-ID: <3DAC1B38.40101@namesys.com> References: <200210121052.22603.bofh@coker.com.au> <200210142252.09438.bofh@coker.com.au> <20021014225812.GA11337@tapu.f00f.org> <200210151457.58520.bofh@coker.com.au> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Russell Coker Cc: Chris Wedgwood , reiserfs-list@namesys.com Russell Coker wrote: >See the following graph: >http://www.coker.com.au/~russell/hardware/46g.png > >This shows testing a single 46G drive, two drives on different buses at the >same time, and two drives on the same bus at the same time. zcav (part of >Bonnie++) was used to perform the tests. > > > > > I am surprised that separating them onto different buses has so little effect. It looks like most of the bottleneck for large reads off two drives is not the IDE bus, but something else (maybe CPU or memory bandwidth). Hans