[Poppler-bugs] [Bug 50992] library should be thread-safe

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=50992

--- Comment #76 from Albert Astals Cid <tsdgeos at terra.es> ---
Also there seems to be a huge lock-contention (at leat with your pdftoppm
test), running the patched pdftoppm with USE_THREADS and MAX_THREADS of 8 i
never got cpu usage over 100% (where 100% is one core used) of my 8 cores (i
expected it to go close to 700% at least) and the number of pages per second
also dropped, in a given PDF with lots of pages and 20 seconds of rendering it
went down from around 250 to around 170 pages rendered when using
multithreading.

Any idea why that might be happening?

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