[Pvfs2-developers] pvfs2-cp profile

Scott Atchley atchley at myri.com
Tue Jan 16 09:39:26 EST 2007


On Jan 12, 2007, at 8:37 PM, Sam Lang wrote:

>
> That last patch I sent to the list was messed up.  This one should  
> apply cleanly.
>
> -sam
>
> <async-pvfs2-cp.patch>
>
>> Hi Scott,
>>
>> Attached patch modifies pvfs2-cp to use two buffers.  This should  
>> remove the 20 msec gaps you're seeing between requests.  Initial  
>> tests I ran look like they also make the timings with pvfs2-cp  
>> more consistent between runs.
>>
>> You'll need to run ./config.status after patching.
>>
>> -sam
>>
>> <async-pvfs2-cp.patch>

I could not cleanly patch my tree, so I checked out a new one. It  
applied fine. I applied this as well as the io-flow-post patch.

It does remove the gaps. :-)

Unfortunately, I have no 10G machines available to test this on.  
Hopefully, I will in a couple of days.

Scott


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