lkml.org 
[lkml]   [2003]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest]
On Mon, Feb 10, 2003 at 10:53:27PM +1100, Nick Piggin wrote:
> Andrew Morton wrote:
>
> >Andrea Arcangeli <andrea@suse.de> wrote:
> >
> >>It's the readahead in my tree that allows the reads to use the max scsi
> >>command size. It has nothing to do with the max scsi command size
> >>itself.
> >>
> >
> >Oh bah.
> >
> >- *max_ra++ = vm_max_readahead;
> >+ *max_ra = ((128*4) >> (PAGE_SHIFT - 10)) - 1;
> >
> >
> >Well of course that will get bigger bonnie numbers, for exactly the reasons
> >I've explained. It will seek between files after every 512k rather than
> >after every 128k.
> >
> Though Andrea did say it is a "single threaded" streaming read.

yes, I pointed you to bonnie read sequential in bigbox.html, not
tiobench.

Andrea
-
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 13:33    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site