From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Drokin Subject: Re: Mount and file system size issue Date: Fri, 7 Jun 2002 20:02:20 +0400 Message-ID: <20020607200220.A1657@namesys.com> References: <8287102CFE5C31418556A13A4E5BEE91E95A77@sphynx.git.compgen.com> <3CFFB2CA.6020300@namesys.com> <001201c20d9e$73e5d070$5701a8c0@bomoon> <20020607112121.C12869@namesys.com> <000801c20e3a$df840b20$5701a8c0@bomoon> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Content-Disposition: inline In-Reply-To: <000801c20e3a$df840b20$5701a8c0@bomoon> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: bo Cc: reiserfs-list@namesys.com Hello! reiserfs reading all of the bitmaps immediately and stick bitmaps in the RAM. So if reading all of the bitmaps on 120G volume, that means reading 960 4k sectors off the media (each 32M there is bitmap on disk). That would eat at least 4 megabytes of RAM. Actually if you can do a profiling to see what reiserfs does during mounting, that would be interesting. Also you have not answered what kind of media you are using. ext2/3 read bitmap blocks on demand on the other side. Bye, Oleg On Fri, Jun 07, 2002 at 08:49:13AM -0700, bo wrote: > It is our new product. > When I use ext2fs it mounts 120G filesystem successfully in about 3-4 > seconds, > but I waited for about an hour with the REISERFS, never came back. > > I know Linux 2.4.5 is far behind from the release. I want to know the reason > why > I have this MOUNTproblem for the big FS. > > Thanks, > > Bo > ----- Original Message ----- > From: "Oleg Drokin" > To: "bo" > Cc: > Sent: Friday, June 07, 2002 12:21 AM > Subject: Re: [reiserfs-list] Mount and file system size issue > > > > Hello! > > > > On Thu, Jun 06, 2002 at 02:09:31PM -0700, bo wrote: > > > > > I am running the ARM-Linux, which is based on Debian 2.4.5. > > > > 2.4.5 is way too outdated for purposes of using reiserfs. > > > > > I tried to make and mount the reiserfs on 20G size, it was OK. > > > However, for 120G size, it is OK to make the file system but > > > I can not mount it. > > > > What do you mean by "cannot mount"? > > What is the error message if you get one? > > > > > Most of time it never come back from "mount -reiserfs ". > > > > Ah, so it just mounts, but does very slow. > > BTW, how you get 120GB on your ARM system? > > Do you have IDE controller and HDD attached to it or is this something > > accessed over network? > > > > > Is it really a problem of Linux revision? > > > Should I upgrade my linux to 2.4.13 or above to make the REISERFS work? > > > > Upgrading to 2.4.18 is highly advisable. > > > > Bye, > > Oleg > > >