lkml.org 
[lkml]   [2006]   [Dec]   [22]   [last100]   RSS Feed
Views: [more markup]   [less markup]   [headers]   [forward]  
 
Messages in this thread
/
DateFri, 22 Dec 2006 11:24:03 +0545
From"Manish Regmi" <>
SubjectRe: Linux disk performance.
On 12/21/06, Erik Mouw <mouw@nl.linux.org> wrote:
> Bursty video traffic is really an application that could take advantage
> from the kernel buffering. Unless you want to reinvent the wheel and do
> the buffering yourself (it is possible though, I've done it on IRIX).

But in my test O_DIRECT gave a slight better performance. Also the CPU
usage decreased.

>
> BTW, why are you so keen on smooth-at-the-microlevel writeout? With
> real time video applications it's only important not to drop frames.
> How fast those frames will go to the disk isn't really an issue, as
> long as you don't overflow the intermediate buffer.

Actually i dont require  smooth-at-the-microlevel writeout but the
timing bumps are overflowing the intermediate buffers . I was just
wondering if i could decrease the 20ms bumps to 3 ms as in other
writes.

>
> Erik
>
> --
> They're all fools. Don't worry. Darwin may be slow, but he'll
> eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
>


-- 
---------------------------------------------------------------
regards
Manish Regmi
---------------------------------------------------------------
UNIX without a C Compiler is like eating Spaghetti with your mouth
sewn shut. It just doesn't make sense.
-
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: 2006-12-22 05:41    [from the cache]
©2003-2008