siying opened a new pull request, #43339: URL: https://github.com/apache/spark/pull/43339
### What changes were proposed in this pull request? Lower RocksDB background threads' CPU priority. ### Why are the changes needed? RocksDB background threads execute background tasks such as compactions and flushes. It should be in general lower priority than Spark tasks excution. For the case where a task may wait for some RocksDB background task to finish, such as checkpointing, or waiting async checkpointing to finish, the task slot is waiting so we are likely to have enough CPU for low pri CPU anyway. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Run benchmarks and see the results. ### Was this patch authored or co-authored using generative AI tooling? No. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
