| Gehel added a comment. |
Looking at wdqs-updater GC logs on wdqs1004, in the last 7 days:
- heap before GC peaks at ~1.4GB (with a few higher peaks at ~2GB)
- heap after full GC is ~512MB
- max heap size is configured at 2GB
- allocation rate over that period is ~70MB/s (but probably peaks much higher, the updater has a fairly spiky workload over short periods of time)
- throughput = 99.807% (less than 0.2% of the time is spent in GC)
Overall, this seems pretty good.
We could probably reduce heap to 512MB easily, which would free an additional 1.5GB for disk cache. Probably not a game changer, but always nice.
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Cc: gerritbot, Smalyshev, Gehel, Aklapper, Lordiis, Lucas_Werkmeister_WMDE, GoranSMilovanovic, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, QZanden, EBjune, merbst, Avner, Lewizho99, Maathavan, debt, Jonas, FloNight, Xmlizer, Izno, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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