System perforamance 4.x vs. 5.x and 6.x

Aleksey Perov algardo at
Fri Feb 15 12:05:24 UTC 2008

Kris Kennaway wrote:

> I checked with the developer, and no-one running 6.x and quotas ever 
> replied to multiple requests to test the patch.  It can be found here if 
> you want to resolve this performance problem without upgrading to 7.0:

Well, I'm running RELENG_6 SMP system with this patch since september
2007 (last updated 2008-02-08), and I haven't seen any quota-related
problem. Quota-enabled partition is 60 GB UFS2 containing 25,000+
customers' home directories with Maildir-style mailboxes and surviving
100,000+ deliveries (file creations) and approximately the same number
of retrievals (file deletions) each day.

mail:~# df -i /disk1
Filesystem  1K-blocks     Used    Avail Capacity iused   ifree %iused  Mounted on
/dev/da1s1d  66343254 25904146 35131648    42% 1479119 7117359   17%   /disk1
mail:~# mount
/dev/da1s1d on /disk1 (ufs, local, noexec, nosuid, with quotas, soft-updates)

If I can run some specific (stress?) tests that might provide useful
information, let me know. Output of dmesg, vmstat, iostat, top, etc --
just ask.


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