From: Dave Cundiff <syshackmin@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Performance degradation
Date: Mon, 20 Sep 2010 17:24:58 -0400 [thread overview]
Message-ID: <AANLkTimhpg22M0UUcfksh1H9oGMweVhwpDvqeu0nfOP0@mail.gmail.com> (raw)
Hi,
I have a btrfs backup system that has been running great. Its been
backing up 6 systems with 500-750 gigs of data using Rsync and
snapshots. Every night I snapshot the backup and overwrite it.
Recently it has been unable to complete the backups. Its running soooo
slow that it can barely finish 1 backup a day. When I first started
backing up the systems they would all complete in at the most 8 hours.
I noticed it started happening after I deleted a large number of
snapshots. This caused the cleaner process to run for a few days.
After it finished the filesystem has still been to slow to use.
I'm running kernel 2.6.36-rc4.
Filesystem was built with -m single -d single and using the compress
mount option.
Block device is an Areca RAID5 with 4 Western Digital 2TB drives.
--
Dave Cundiff
System Administrator
A2Hosting, Inc
http://www.a2hosting.com
next reply other threads:[~2010-09-20 21:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-20 21:24 Dave Cundiff [this message]
2010-09-21 1:19 ` Performance degradation K. Richard Pixley
2010-09-21 4:27 ` Dave Cundiff
2010-09-22 0:02 ` Chris Mason
2010-09-22 12:03 ` Daniel J Blueman
2010-09-24 19:39 ` Dave Cundiff
2010-09-26 14:05 ` Daniel J Blueman
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