xinyiZzz opened a new pull request, #21237: URL: https://github.com/apache/doris/pull/21237
## Proposed changes Issue Number: close #xxx Jemalloc dirty page only use madvise `MADV_FREE`, memory is not release back to system, RSS won't reduce in time, So when the process memory exceed limit or system available memory is insufficient, manually transfer dirty page to the muzzy page, which will call `MADV_DONTNEED` to release the physical memory back to the system. https://jemalloc.net/jemalloc.3.html#opt.dirty_decay_ms ``` stats.arenas.<i>.pdirty (size_t) r- Number of pages within unused extents that are potentially dirty, and for which madvise() or similar has not been called. See [opt.dirty_decay_ms](https://jemalloc.net/jemalloc.3.html#opt.dirty_decay_ms) for a description of dirty pages. ``` ## 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
