lkml.org 
[lkml]   [2002]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Multi disk performance (8 disks), limit 230 MB/s
Andrew Morton wrote:

> Roman Dementiev wrote:
> >
> > 8 disks: 214 ? 229 ? 40 % 6.7 / 0.8 /10.8
> >
>
> raw access in 2.4 isn't very good - it uses 512-byte chunks. If
> you can hunt down the `rawvary' patch that might help, but I don't
> know if it works against IDE.
>
> Testing 2.5 would be interesting ;)

I still can't run it, 'interrupt lost' ...

>
>
> Try the same test with O_DIRECT reads or writes against ext2 filesystems.
> That will use 4k blocks.

Thanx, it works. I have got 375 MB/s.

Roman


-
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: 2005-03-22 13:28    [W:0.066 / U:1.396 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site