From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ming Zhang Subject: Re: reiser fs slow on mksf and mount Date: Fri, 26 Aug 2005 14:07:30 -0400 Message-ID: <1125079650.5549.87.camel@localhost.localdomain> References: <1125074717.5549.44.camel@localhost.localdomain> <430F4B91.7030909@namesys.com> <1125076138.5549.65.camel@localhost.localdomain> <1125076558.5549.72.camel@localhost.localdomain> <430F5226.50701@namesys.com> Reply-To: mingz@ele.uri.edu Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=-6Xrx2ynG2mwxVJChb17Z" Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <430F5226.50701@namesys.com> List-Id: To: "Vladimir V. Saveliev" Cc: reiserfs-list@namesys.com --=-6Xrx2ynG2mwxVJChb17Z Content-Type: text/plain Content-Transfer-Encoding: 7bit On Fri, 2005-08-26 at 21:32 +0400, Vladimir V. Saveliev wrote: > Hello > > > On Fri, 2005-08-26 at 13:08 -0400, Ming Zhang wrote: > >>i think 3.2TB partition is not that big these days right? > >> > >>i would think some people that hold millions of files will have much > >>larger partition than this. > >> > >>so you think this is a normal speed for such size partition? > >> > > No. That was joke actually. > Speed of mkfs.reiserfs confuses me. :) i captured vmstat 1 and iostat 1. i bet u will be confused more. it is pretty big for email so i attached them. > As you did answer about whether all disks were spinning - I suppose that they were. no > Can you please run vmstat 1 or iostat 1 while mkreiserfs is running? > > >>also iostat 1 -k shows that during mount, there are small size read > >>happen each second. so this is because read meta data and metadata is > >>not continuous on disk? > >> > > Yes. On mount reiserfs reads all bitmap blocks to memory. Those blocks are spread over whole disk. There is workaround for this problem. > > >>>> > >>>There is a patch to cure this problem. > >>>http://www.mail-archive.com/reiserfs-list@namesys.com/msg18442.html > >>>Please note that it is experimental one. > >>> > >>>> Does reiserfs4 have any improvement on this? Thanks! 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