Re: Method call overhead

From: Date: Fri, 05 Jun 2015 09:08:04 +0000
Subject: Re: Method call overhead
References: 1 2 3 4 5 6  Groups: php.internals 
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Sara Golemon wrote on 04/06/2015 22:55:
On Jun 4, 2015, at 10:00, Rowan Collins <[email protected]> wrote: : http://3v4l.org/l75kf HHVM's percentages are lower primarily because its for loop measure is much slower in absolute terms.
At the risk of distracting from the central topic, I'd like to point out that HHVM's times are almost certainly based on non-JITted code. The JIT doesn't kick in until the 11th request, and 3v4l scripts are, by definition, only run once. PHP is optimized for blind interp, so it's doing better in that mode.
That makes a lot of sense, and just goes to show how hard it is to get useful information out of a simple benchmark.

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