linux-kernel - Re: Scalability requirements for sysv ipc

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Message-Id: <1206256081.3649.13.camel@marge.simson.net>
Date:	Sun, 23 Mar 2008 08:08:01 +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 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)



             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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