[Twisted-Python] profiling twisted
exarkun at divmod.com
Mon Jul 2 07:14:48 EDT 2007
On Mon, 02 Jul 2007 11:04:56 +0200, Markus Schiltknecht <markus at bluegap.ch> wrote:
>Anyway, with very simple timing measures within the twisted server itself,
>I've figured out what was causing the delays: reactor.spawnProcess() takes
>more than a second. I knew that fork() was expensive, but that expensive?
This isn't normal.
>What I'm doing now feels very dirty: I'm calling reactor.spawnProcess() from
>a thread. (Yes, I'm taking care that only one thread can spawn a process at
>any time.) At least on my Linux Dev-Box, that seems to work - and resolves
>my issue. But... calling fork() from a thread???
Er. That's not supported. The only Twisted API you can call from a thread
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