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Subject: multi-threaded run-tests.php
From: nlopess@php.net ("Nuno Lopes")

Hi,

Recently we have moved http://gcov.php.net to a new (and much faster) 
server. This allowed us to reduce the time to build all branches to "just" 2 
days (compared with almost one week that would take previously).
However I'm still not happy :P The server has 2x2 CPU cores and I would like 
to use them :) Currently I can speed-up the make process, because it can be 
parallelized (with -j xx). But the major time is still spent with 
run-tests.php.

So, what I would like to propose is a multi-threaded version of 
run-tests.php. We could spawn x processes (configurable) and one of them 
would test y extensions (I think it's better to have each extension's tests 
tested serially or they may break, because they may use the same resources: 
BDs, files, etc..).

Any comments?

Thanks,
Nuno