[Poppler-bugs] [Bug 66928] 100% CPU usage

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66928

--- Comment #7 from Thomas Freitag <Thomas.Freitag at alfa.de> ---
(In reply to comment #5)
> Could it be that Your caching of GfxICCBasedColorSpace doesn't work
> correctly, Albert? 

Sorry, Albert, my mistake: had an old callgrind file flying around and
kcacheground took it, it was produced prior Your changes ... :-(

I profiled now also page 3, and definitely, the time is wasted in
cmsDoTransform. BUT: the call stack is

GfxImageColorMap::getRGB (!!!)
GfxICCBaseColorSpace::getRGB
GfxColorTransform::doTransform
cmsDoTransfrom

called round about 22 million times for page 3, where 256 calls should be
sufficient if we cache the results in GfxImageColorMap, but probably we the
need to cache GfxImageColorMap, too. But let me first try to cache the RGB
results in GfxImageColorMap....

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