similar to: simple ext3fs question.

Didn't hear back from anyone regarding if there is a way to determine if I am running the ext3fs with htree. Is there a way I can do it without checking the src code since I am running the precompired redhat kernel with 8.0? Perhaps an entry under /proc somewhere? Pj -----Original Message----- From: Parker Johnson Sent: Tuesday, January 14, 2003 3:34 PM To: 'Andreas Dilger';

I am trying to determine the optimal filesystem for accessing large numbers of files (25,000+) in a single directory. I have read that ext3fs uses a sequential search algorithm and wanted to verify that this was still indeed the case since this article was published a year ago. http://bulmalug.net/body.phtml?nIdNoticia=1154 <http://bulmalug.net/body.phtml?nIdNoticia=1154&nIdPage=7>

I'm NOT the authority here, but AFAIK, Htree is presently available only as a patch for 2.4 kernels (which includes RH8). I think that Htree was still beta code at the time RH8 was frozen (and may still be, from RedHat's perspective). I do not have the impression that the Htree patch has been applied in any standard RedHat kernels or kernel updates. I hope I am wrong, and that

Bummer. Does anyone have a url that describes the 2.4 patching process? Any claims on stability? Thanks, Parker -----Original Message----- From: 'Andreas Dilger' [mailto:adilger@clusterfs.com] Sent: Wednesday, January 15, 2003 4:35 PM To: Parker Johnson Cc: 'ext3-users@redhat.com'; Ops Subject: Re: ext3fs still uses sequential search of file names in director ies? On Jan 15,

Andreas was kind enough to point out that not neccesarily all ext3fs have htrees ready to go. I am running redhat8.0 out of the box. How can I check if ext3fs with htrees is running? I can download the kernel source, but I don't know what options were used when it was built by redhat. Thanks much for all of your help. -Parker -----Original Message----- From: Andreas Dilger

hi, i have a tricky situation here and and don't know where to start with the solution. i happened to set up a linux system, but i had to install the base system on another machine. i used e2fsprogs 1.30-WIP (30-Sep-2002) for this. now the machine is up and running, but i have to use e2fsprogs 1.27 (8-Mar-2002). it's a debian system and i wanted to stay sane & stable, hence using

Hi, I've got a Redhat 7.2 system: Celeron 400 512MB RAM 18GB SCSI HD (/boot (ext2fs), / (ext3fs)) 40GB IDE HD (/ (ext3fs)) I run a bunch of services on the box (apache + mod_perl, MYSQL, Samba, etc) but the system is not under heavy load. This system has performance issues reading/writing to the ext3fs filesystems. The performance issues cropped up when I installed Redhat 7.2. Previously

Good evening. We have some heavy-loaded servers on ext2, and we want to migrate to ext3fs. But we need full and stable quota support. I have headrd that there are some problems in quota usage under ext3fs. Is it true? Should we decline the ext3 usage as impossible in our servers? We need high-level stability in our server (hosting). Thanks before. -- Best regards,

Hi, I have ext3 installed against the 2.2.19 kernel. I am able to make the ext3 file system and mount it. I am not able to install the ext3fs for kernel-2.4.5 . I am unable to add the ext3 patch to the kernel. In the directory ~andrewm/linux/ext3/, which is the patch for 2.4.5 kernel. ( I can only see the patches for 2.4.6 and 2.4.7 ). Also, is there any prescribed pattern for

This maybe early, but is there an ext3fs patch for the 2.4.16 kernel -- also, in general where does one download the lastest ext3fs patches?? I found the 2.4.14 patch a few weeks ago on in the linux.org UK site, but all the patches appear to be taken off that site...Any help would be most appreciated... Thanks, Chris --------------------------------------------------------------------

Hello All, I have been doing some research to find a method to increase the performance of writes to the hard drives in my servers. I am running Samba and all writes to the server hard drives are taking at least 3 to 10 times (It varies) the amount of time it took to write such files on our older Windows NT 4.0 File Server. The following information is provided to keep this issue on track...

Hello, does anybody know if there is an ext3fs patch for kernel 2.4.2-2 that is shipped with redhat 7.1? I was abel to fins patches only for 2.4.6 and 2.4.7. Please try to help ASAP. Best regards, Imad Ossaily.

hi, i've made *some* benchmarks, i plan to do more. benchmarks requests welcome, e.g. "please test this...with that.." https://ephigenie.kicks-ass.net/bench/benchmark.html but only in https://ephigenie.kicks-ass.net/bench/prinz are results right now. I hope this is helpful. Thanks, Christian.

I decided that I would try out 2.5.44, and I noticed that htree was merged. If I don't do the tune2fs -O dir_index, and e2fsck -D, the (exisintg) fs won't use htree, right? Once I do the tune2fs and e2fsck, will I still be able to go back to a non-htree kernel if needed? (Will a htree-ized fs work on a non-htree kernel?) I'm guessing that it won't. I've seen a 2.4 htree

Apologies for the newbie question: I have a (stock) 2.4.20 build (*not* -ac), and I'm trying to work with large ext3 directories. By large, I mean 160,000 files per directory. (Yes, I know it would be better in nested directories but such is life). I feel htree would benefit me. Having upgraded from an earlier version of 2.4, I don't see any change, and close reading of the 2.4 changelog

Dear list, pardon my ignorance on ext2/3fs. Is the ext2fs' 4Tb file system and 2GB maximum file size limit still true in ext3fs? Thanks for your reply, Gotze __________________________________________________ Do You Yahoo!? Get email alerts & NEW webcam video instant messaging with Yahoo! Messenger http://im.yahoo.com

Guys, I have recently applied the latest 2.4 htree patch on a heavily loaded nfs server. The nfs server serves around four very busy clients that deliver email in maildir format and pop3/imap clients. Being maildir I presumed that the htree patch would improve performance - but I was wrong. Load on the server went up by around 25-40%. After 3-4 hours of heavy use the clients load went up to

Apologies for the newbie question: I have a (stock) 2.4.20 build (*not* -ac), and I'm trying to work with large ext3 directories. By large, I mean 160,000 files per directory. (Yes, I know it would be better in nested directories but such is life). I feel htree would benefit me. Close reading of the 2.4 changelog suggests that htree isn't in there - only a patch to prevent non-htree

Well here is what I got from testing htree with NFS. http://labs.zianet.com/benchmarks_html/postmark_benchmarks_NFS_100_htree.html It looks like htree improves performance when the storage device is local(as per my previous post) but it looks like htree degrades performance when used in conjunction with NFS. I am going to try it with gigabit ethernet when I get the time to see if maybe I am

Hello, Could someone create some newer htree patches for the 2.4.x kernel? There are some bug fixes in the 2.4.21-rc releases that would be nice to have but the htree patches preceed those and they won't apply cleanly to later pre/rc kernels. It sounds like Marcelo may be about ready to put out 2.4.21 so it may just be worth holding off until that happens, but I don't suspect much will