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From Pid <...@pidster.com>
Subject Re: parallel webapp initialization
Date Thu, 26 Jan 2012 08:31:36 GMT
On 26/01/2012 06:52, David Rees wrote:
> On Wed, Jan 25, 2012 at 1:24 AM, Pid <pid@pidster.com> wrote:
>> On 24/01/2012 21:01, David Rees wrote:
>>> The system has 8 CPU cores, Opteron 2378 CPU.  Going beyond 4
>>> startStopThreads for the host where the webapps are deployed doesn't
>>> speed things up much more as it appears that the webapps can use up to
>>> 2 cores when initializing as seen in single threaded startup mode.
>>
>> In single threaded startup mode, the process uses 2 cores?
> 
> Yes - I haven't traced exactly what the application is doing during
> startup, but you can see that CPU usage is somewhere between 100-190%
> or so during startup.
> 
>> You refer to system and host separately, is it virtualised?
> 
> No - by host I meant <Host/> in the Tomcat configuration.

Gotcha.   Good info, thanks.


p


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