Re: [arch-general] imagemagick 6.8.9.8-1 is slower than 6.8.9.7-1

Am 18.10.2014 um 08:22 schrieb Lukas Fleischer:

After a more thorough analysis by Jan, we found out that the issue is caused by a bug in the new OpenCL benchmark code. On modern CPUs, the benchmark is executed on every start of ImageMagick which leads to huge number of __memcpy_avx_unaligned() calls with a small block size. Jan prepared a patch and he will submit it upstream. If you wish to use the current imagemagick version without a recompile you can set the opencl cache to a missing directory. Then imagemagick cannot write the cachefile and skips the benchmark.

env MAGICK_OPENCL_CACHE_DIR=/tmp/CACHE_DOESNT_EXIST convert ...