[Swift-devel] Re: examining the plots of a 65535 job CNARI run

[Ben Clifford]

On Thu, 25 Sep 2008, Mihael Hategan wrote:

> > A large number though take what looks to be about 2000 seconds to end (and 
> > seemingly all are about the same duration, which maybe means its a timeout 
> > on the task itself);
> 
> That's probably when no worker is allocated, so it includes the queue
> time.

My understanding of the allocation pattern for workers is that there 
should be plenty of spare workers most/all of the time.

These tasks aren't appearing at the every-6300s restart-the-workers points 
- they seem scattered fairly evenly throughout the execution.

The time looks like it is mostly queue time.

Look at this plot:

http://www.ci.uchicago.edu/~benc/tmp/report-modelproc-20080924-1226-pkzripi7    
/karatasks.JOB_SUBMISSION.Queue.sorted-start.png 

Each task is represented by a red line with the left end being when it 
goes into Submitted state and the right end being when it leaves submitted 
state (eg to fail or become active).

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