rob05c commented on issue #4493: Change ORT/atstccfg to generate all files at once, massive performance improvement URL: https://github.com/apache/trafficcontrol/pull/4493#issuecomment-599691157 >includes fixes to a number of ORT slugs I found. If anyone wants more detail: the big ones were `check_this_plugin` and `package_installed`. These funcs call OS yum data about installed packages, which is reasonably slow. They were calling out for every single plugin on every single remap line, ~2000 calls on a large CDN. But we only have ~10 unique plugins and packages. I changed them to cache results, so they only ever call out to Yum/CentOS once per unique name. That saved about 2 minutes on my large CDN run, reducing the full ORT run (after the single-file changes and other performance fixes) from about 140 seconds to about 20 seconds.
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