linux-kernel - Re: Scalability requirements for sysv ipc

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Date:	Sun, 23 Mar 2008 08:20:50 +0100
From:	Mike Galbraith <efault@....de>
To:	Manfred Spraul <manfred@...orfullife.com>
Cc:	paulmck@...ux.vnet.ibm.com, Nadia Derbey <Nadia.Derbey@...l.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Scalability requirements for sysv ipc


On Sun, 2008-03-23 at 08:08 +0100, Mike Galbraith wrote:
> On Sat, 2008-03-22 at 20:35 +0100, Mike Galbraith wrote:
> > On Sat, 2008-03-22 at 15:22 +0100, Manfred Spraul wrote:
> > > Mike Galbraith wrote:
> > > > Total: 4691827                                Total: 3942000
> > > >   
> > > Thanks. Unfortunately the test was buggy, it bound the tasks to the 
> > > wrong cpu :-(
> > > Could you run it again? Actually 1 cpu and 4 cpus are probably enough.
> > 
> > Sure.  (ran as before, hopefully no transcription errors)
> 
> Looking at the output over morning java, I noticed that pmsg didn't get
> recompiled due to a fat finger, so those numbers are bogus.  Corrected
> condensed version of output is below, charted data attached.
> 
> (hope evolution doesn't turn this into something other than plain text)

Pff, I'd rather have had the bounce.  Good thing I attached the damn
chart, evolution can't screw that up.

> 
> 
> 
>              1
>              2
>              3
>              4
> 2.6.22.18-cfs-v24.1 psem
>        4791557
>        9403536
>       13583603
>       18103350
> 2.6.22.18-cfs-v24.1 pmsg
>        4906249
>        9171440
>       13264752
>       17774106
> 2.6.24.3 psem
>        4009069
>        7578648
>        8044041
>        5134381
> 2.6.24.3 pmsg
>        3917588
>        7290206
>        7644794
>        4824967
> 

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