[PLUG] debug running process

Paul Heinlein heinlein at madboa.com
Thu Sep 2 17:28:12 UTC 2010


On Thu, 2 Sep 2010, Daniel B. Herrington wrote:

> Well, the process itself will be multi-threaded. That's where the 
> vendor thinks things are going wrong, and the hope is getting the 
> strace output on the processes will allow us to catch an issue as it 
> happens.
>
> Is there a big performance hit in running strace (this is SLES 10) 
> and dumping to a file? It might be easier just to use -o and 
> preventively write all the output beforehand?

I usually dump to a file rather than stdout, just because the spew 
comes at such a high rate. Unless the machine's CPU or I/O subsystem 
is already overloaded, you shouldn't have much trouble writing to a 
file. Keep an eye on file size -- strace dumps can be large -- and you 
should be just fine.

-- 
Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/



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