lkml.org 
[lkml]   [2006]   [Jul]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 3ware disk latency?
dean gaudet wrote:
: my suspicion is the 3ware lacks any sort of "fairness" in its sharing of
: buffer space between multiple units on the same controller. and by
: disabling the write caching it limits the amount of controller memory that
: the busy disk can consume.

Hmm, do you have a battery backup unit for 9550sx? I don't,
and the 3ware BIOS does not even allow me to enable write caching without it.
So I don't think the write caching on the controller side is related
to my problem.

I have been able to improve the latency by upgrading the firmware
to the newest release (wow, they even have a firmware updating utility
for Linux!).

-Yenya

--
| Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/ Journal: http://www.fi.muni.cz/~kas/blog/ |
> I will never go to meetings again because I think face to face meetings <
> are the biggest waste of time you can ever have. --Linus Torvalds <
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-07-27 14:15    [W:0.163 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site