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Re: [Gnash-dev] Optimization to jpeg decoding

From: strk
Subject: Re: [Gnash-dev] Optimization to jpeg decoding
Date: Thu, 27 Nov 2008 08:53:51 +0100

On Thu, Nov 27, 2008 at 02:48:48AM -0500, dolphinling wrote:
> strk wrote:
> >On Wed, Nov 26, 2008 at 08:32:03PM -0500, dolphinling wrote:
> >>boost::scoped_array<unsigned char>::operator[] is called nearly 25 
> >>million times from readSWFJpeg3, for 5.67% of the run time, but I don't 
> >>see a trivial way to eliminate those calls like with getWidth.
> >
> >I tought that operator would be inlined ? Are you building with inlines
> >turned off by any chance ?
> Looks like it was because it was a debug build. I thought gcc kept 
> optimizations in debug by default, I guess you need to tell it to. In a 
> non-debug build, that doesn't show in the profiler (and getWidth is up to 
> 2.64% of the runtime).

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