TickProfiler is a popular TPS-measurement mod from back in the day. It's in a lot of 1.10-1.12 modpacks.

Most TickProfiler versions try to download additional dependencies from https://jcenter.bintray.com/ at game startup, using a library called LibLoader. This usually works, but if you're offline, using an old version of Java that doesn't have the right HTTPS root certificates, or if JCenter is down - the download will fail and the game will crash.

To fix this, TackProfiler bundles a copy of all libraries TickProfiler wants to download, and patches TickProfiler's library-downloading code to use my local copies instead of attempting Internet connections.

TackProfiler works on Forge 1.12, 1.11, and 1.10 (all versions of TickProfiler on Curse). Might work for 1.9 and 1.8. TickProfiler for 1.7 does not attempt to automatically download libraries so it's not needed.

Couple things to note:

TackProfiler has an unusual filename (it starts with "# #TackProfiler"). Do not rename the file. The pound-signs are necessary to make Forge load TackProfiler before LibLoader so I can patch it.
TackProfiler does not appear in the in-game mod list. This is normal. Watch the log for "TackProfiler initializing".

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