[Poppler-bugs] [Bug 93827] PDF slow to render

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93827

--- Comment #1 from Jakub Kucharski <jakubkucharski97 at gmail.com> ---
The Linux perf tool shows me that there is a lot of time spent in
cmsEvalToneCurveFloat() function when rendering this document. If you disable
CMS in CMake (-DENABLE_CMS=OFF), the problem disappears. If you switch to lcms1
(instead of lcms2; -DENABLE_CMS=lcms1), it's slower than without CMS, but
faster than with lcms2. I'm not familiar with this library, so unfortunatelly I
can't write any patches which would fix it with lcms2.

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