linux-kernel - Re: [RFC -mm 0/6] sysv ipc: scale msgmnb with the number of cpus

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Message-ID: <484A9D52.2020703@colorfullife.com>
Date:	Sat, 07 Jun 2008 16:38:10 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	Solofo.Ramangalahy@...l.net
CC:	linux-kernel@...r.kernel.org, Matt Helsley <matthltc@...ibm.com>,
	Mingming Cao <cmm@...ibm.com>,
	Nadia Derbey <Nadia.Derbey@...l.net>,
	Yasunori Goto <y-goto@...fujitsu.com>
Subject: Re: [RFC -mm 0/6] sysv ipc: scale msgmnb with the number of cpus

Solofo.Ramangalahy@...l.net wrote:
> The size in bytes of a SysV IPC message queue, msgmnb, is too small
> for large machines, but we don't want to bloat small machines
>
> Several methods are used already to modify (mainly increase) msgmnb:
> . distribution specific patch
> . system wide sysctl.conf
> . application specific tuning via /proc/sys/kernel/msgmnb
>
>   
Which distributions use a patch?

The whole configuration can be done from user space, thus I assumed that 
a sysctl.conf value (or in the worst case: a dbus/hal daemon that 
updates /proc/sys/kernel/msgnmb) could do the job.

--
    Manfred
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