![]() Setting the MAGICK_THREAD_LIMIT variable in PHP Then open a new command shell, since the current one will not load such environment variable until we log into the system again. PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" So edit the /etc/environment file and add the line MAGICK_THREAD_LIMIT=1 as shown below: ~# cat /etc/environment This variable should be set to 1 and be available in the runtime environment of the convert command. The way to force ImageMagick to use a single processor or core when performing an image conversion is using the environment variable MAGICK_THREAD_LIMIT. Limit the number of cores using MAGICK_THREAD_LIMIT It’s only a workaround, a “trick” allowing us to use ImageMagick without falling into the CPU freezing mentioned earlier in this article. ![]() Note that the procedure shown below does not really solve the problem. Thus, compiling ImageMagick again it not a viable choice. The latter is perhaps the best solution to our problem because probably we will have already tried to update ImageMagick to another version, and in many cases we will have ImageMagick installed as a package from one of the Linux distributions available. Forcing ImageMagick to use only one of the available cores present in the system to perform the conversion.Recompiling ImageMagick with the –disable-openmp parameter to not use the multiprocessor feature.Upgrading to a new version of ImageMagick or an earlier one stable enough that there is no bug causing this problem.If the above command displays the “Features: OpenMP” line, then everything fits and our problem of excessive CPU load can be fixed in three ways: Then check if your version of ImageMagick is enabled with OpenMP feature: ~# convert -versionĬopyright: Copyright (C) 1999-2009 ImageMagick Studio LLC So the first thing to do to know if the solution proposed in this post is valid for us, is to check if the system has multiple processors or multiple cores: How to know how many cores and processors has a Linux box.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |