morrySnow commented on pull request #8695: URL: https://github.com/apache/incubator-doris/pull/8695#issuecomment-1080544250
> Why add a memory control to limit the broadcast memory? Instead of using mem limit uniformly? there are 2 reason: 1. broadcast is not always fast than shuffle. The cost of creating a FULL TABLE hash table is not negligible when broadcast table is large. 2. In be, we allocate hash table in buffer pool, and it' is not limited by mem limit. -- 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
