lkml.org 
[lkml]   [2000]   [Jan]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Interesting analysis of linux kernel threading by IBM
Date
From
"Davide Libenzi" <davidel@maticad.it> said:

[...]

> my patch has great performance ( 80% with 300 tasks ) with a lot of tasks
> and low overhead ( 1.5% with 2 tasks ).
> And my patch has 0.00 optimizations about CPU fetches and Co.
> IMVHO 1-1.5 % of overhead is a price the we can afford given the performace
> with many tasks.
> My patch equals the current implementation with 8 tasks.

So it is a net loss. This machine here (a personal workstation) has
typically 1 to 3 running tasks.

Hondreds of tasks is just not a typical (perhaps even realistic)
workload.
--
Dr. Horst H. von Brand mailto:vonbrand@inf.utfsm.cl
Departamento de Informatica Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria +56 32 654239
Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:56    [from the cache]
©2003-2011 Jasper Spaans