On Fri, 2002-03-01 at 18:56, Andreas Jung wrote: > Just run ab against a Zope 2.5.0 instance and tested > the performance against a stupid PythonScript. > > Results: > > without psyco: 116 requests/second > with psyco: 33 requests/second > > Jup, Zope is about 3.5 times slower *with* psyco. > Any explanations for this worse behaviour ? Just a wild, wild guess: this could be related to Psyco not doing the regular interval polling, so PyThreadState_Swap() doesn't get called as often as it should, ZServer piles up requests, the worker threads get starved, and so on. -- Petru Paler, http://www.ppetru.net
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