[evlatests] Missing Modcomp-Free data

[Pete Whiteis]

Where-ever did you get a number like 99%?  This is the first I've heard 
about it.  When Ken and I profiled CPU Usage in the most extreme 
spectral line case, we would occasionally get jumps of up the  < 60%, 
probably more like 40%.   Nothing at all to be alarmed about IMO.

-Pete- 




Bryan Butler wrote:

>
> fine - but when i hear statements that vispipe runs at 99% CPU i get 
> worried, and think that the option of a bigger processor should be 
> considered.
>
>     -bryan
>
>
> On 6/12/07 14:02, Ken Sowinski wrote:
>
>> On Tue, 12 Jun 2007, Bryan Butler wrote:
>>
>>>
>>> we do have the option of replacing the processor for vispipe, don't 
>>> we?  i
>>> vaguely recall that we could upgrade it to the equivalent of one of 
>>> the CMIB
>>> processors pretty trivially.  maybe it's time to look at that.
>>
>>
>> I understand it to be exactly a cmib processor such as the
>> ones we are using today.  There is no problem with vispipe.
>> Rather we are learning about interactions between the executor,
>> correlator, idcaf, vis-pipe and subarrays.  The way to fix the
>> problem is to understand the interactions and render them
>> harmless; not to look for bigger processors.
>
>

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