yixiutt opened a new pull request, #10043: URL: https://github.com/apache/incubator-doris/pull/10043
origin _levels is between size_based_compaction_lower_bound_size and size_based_promotion_size, default conf is 64M and 1024M, which is too big for cu compaction, and once rowset size bigger than 64M it will be promoted to base, so this rule seems to be useless. update _leves to between 32M and 1K, which will reduce a lot of cpu. In our test, we have 20 concurrent stream load and each rowset in disk is 3K, after introduce this change, we save about 25% cpu. # Proposed changes Issue Number: close #xxx ## Problem Summary: Describe the overview of changes. ## Checklist(Required) 1. Does it affect the original behavior: (Yes/No/I Don't know) 2. Has unit tests been added: (Yes/No/No Need) 3. Has document been added or modified: (Yes/No/No Need) 4. Does it need to update dependencies: (Yes/No) 5. Are there any changes that cannot be rolled back: (Yes/No) ## Further comments If this is a relatively large or complex change, kick off the discussion at [d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you chose the solution you did and what alternatives you considered, etc... -- 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: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
