I deleted all lines from the timing log from before September 2016. It had stuff going back to 2013. This dropped the timing log from over 3GB to under 2GB. (I think my timing log may be heavier with more recent entries owing to both an expansion of regular WeBWorK use, plus use by our PreTeXt books.) I'll make it an annual summer task to cull anything older than two years now.
WeBWorK Main Forum
Safe to delete huge log files?
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