rustyx commented on issue #14015:
URL: https://github.com/apache/pulsar/issues/14015#issuecomment-1025590541


   Did some tests, not much improvement from 
`managedLedgerCacheEvictionFrequency=1000` and `PULSAR_GC=-XX:+UseG1GC`.
   `--no-functions-worker --no-stream-storage` together bring ~15% CPU usage 
down to ~4%. Around 2/3 of that improvement seems to come from 
`--no-stream-storage` alone.
   Still, it is not ideal that an idle server uses 4% CPU, it drains the 
battery..


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