HwstorBuildIO

OSR_Community_User · March 28, 2011, 2:29am

Hi,

How many instances of HwStorBuildIo function will be called, consider 4 core system?

I am using IO meter with 32 outstanding commands to run IO.

Thanks,
Amogha

OSR_Community_User · March 28, 2011, 4:46am

update:

I mean to say if there is a 4 core system, will 4 different instance of BuildIO function will be running at the same time?

gokul_tv · March 28, 2011, 6:07am

Yes… To be more precise, in a 4 core system you can get max of 4 instances
of HwStorBuildIo running per adapter. The following documentation has the
complete information regarding this,

http://download.microsoft.com/download/5/6/6/5664b85a-ad06-45ec-979e-ec4887d715eb/Storport.doc

Regards,
Gokul T V

On Mon, Mar 28, 2011 at 2:18 PM, wrote:

> update:
>
> I mean to say if there is a 4 core system, will 4 different instance of
> BuildIO function will be running at the same time?
>
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OSR_Community_User · March 28, 2011, 6:13am

Thanks for the doc Gokul.

Alex_Grig · March 28, 2011, 10:35am

Note that you will only get more than one concurrent BuildIo if you issue the IOs from multple threads. For example, each thread of Dynamo/Iometer is issuing IO.