lkml.org 
[lkml]   [2003]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Changing SEMVMX to a tunable parameter
Arvind Kandhare wrote:

>1. Most of the IPC parameters (e.g. msgmni, msgmax,
>msgmnb , shmmni, shmmax) are tunables.
>
>(Please refer :
>http://web.gnu.walfield.org/mail-archive/linux-kernel-digest/1999-November/0020.html)
>
>Was there any specific reason why semvmx was not made a tunable with the
>above set??
>
>
Because I didn't see the need for making it tunable.

>2. By having semvmx as tunable, administrator gets more flexibility
>in controlling the resource usage on the system:
> a. By increasing this, it is possible to allow more
> processes to use the system resources controlled by a
> semaphore concurrently.
>
>
Changing semvmx has no effect on the resource usage: An integer occupies
4 bytes, a short 2 bytes, independant of it's value.

>Because of problems with dynamic tuning (ref first mail on the subject),
>static tuning (boot time) is proposed.
>
>Please let us know your comments.
>
>
Review everything for signed/unsigned problems, then post your findings
and a patch that increases the limit to 64k. The whole patch will be
shorter than the "confidential" disclaimer at the end of your mails.

--
Manfred

-
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 13:35    [W:0.061 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site