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by SuperQue 3149 days ago
We just upgraded one of GitLab's Prometheus servers (we have HA redundant servers).

We saw a better than 10x reduction in CPU use.

https://imgur.com/3aJtYu9

This server doesn't take any query load, but it does take the same ingestion load as the others.

(The long down time in the middle is waiting for rm -rf on the old data dir.)