[lkml]   [2005]   [Aug]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Where is the performance bottleneck?
On Mon, 29 Aug 2005, Al Boldi wrote:

> Holger Kiehl wrote:
>> Why do I only get 247 MB/s for writting and 227 MB/s for reading (from the
>> bonnie++ results) for a Raid0 over 8 disks? I was expecting to get nearly
>> three times those numbers if you take the numbers from the individual
>> disks.
>> What limit am I hitting here?
> You may be hitting a 2.6 kernel bug, which has something to do with
> readahead, ask Jens Axboe about it! (see "[git patches] IDE update" thread)
> Sadly, 2.6.13 did not fix it either.
I did read that threat, but due to my limited understanding about kernel
code, don't see the relation to my problem.

But I am willing to try any patches to solve the problem.

> Did you try 2.4.31?
No. Will give this a try if the problem is not found.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-08-30 21:22    [W:0.146 / U:2.828 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site