Andrew Morton wrote:
I'm wondering about the real value of this change, really.
In any decent environment, people will fsck their ext3 filesystems during
planned downtime, and the benefit of reducing that downtime from 6
hours/machine to 2 hours/machine is probably fairly small, given that
Andreas Dilger wrote:
On Oct 02, 2007 08:57 -0400, Ric Wheeler wrote:
One thing that jumps out is that the way we currently batch synchronous
work loads into transactions does really horrible things to performance
for storage devices which have really low latency.
For example, one a mid
Andreas Dilger wrote:
On Oct 03, 2007 06:42 -0400, Ric Wheeler wrote:
With 2 threads writing to the same directory, we instantly drop down to
234 files/sec.
Is this with HZ=250?
Yes - I assume that with HZ=1000 the batching would start to work again
since the penalty for batching would only
After several years of helping tune file systems for normal (ATA/S-ATA)
drives, we have been doing some performance work on ext3 reiserfs on
disk arrays.
One thing that jumps out is that the way we currently batch synchronous
work loads into transactions does really horrible things to
We have some of the material reviewed and posted now from the IO FS
workshop.
USENIX has posted the talks at:
http://www.usenix.org/events/lsf07/tech/tech.html
A write up of the workshop went out at LWN and invoked a healthy discussion:
http://lwn.net/Articles/226351/
At that LWN
Jan Kara wrote:
[EMAIL PROTECTED] wrote:
Hi all,
We are building a new system which is going to use ext3 FS. We would like
to know more about the behavior of ext3 in the case of failure. But
before I procede, I would like to share more information about our future
system.
* Our
Andreas Dilger wrote:
On Oct 31, 2006 15:14 -0500, Nikolai Joukov wrote:
1. One of the patches performs N overwrites with configurable patterns
(can comply with NIST and NISPOM standards). Because of the transaction
compaction we had to separately add overwriting as separate
February 13-16, 2007.
Important Dates
Submissions due: November 24, 2006
Notification of acceptance: December 15, 2006
Workshop Organizers
Program Chair
Ric Wheeler, EMC
Program Committee
Jens Axboe, Oracle
James Bottomley, SteelEye
Valerie Henson, Intel
Andrew Morton, Google
Trond Myklebust, Network
