Tim Armstrong has posted comments on this change. Change subject: IMPALA-3611: track unused Disk IO buffer memory ......................................................................
Patch Set 4: (1 comment) http://gerrit.cloudera.org:8080/#/c/3246/4/be/src/runtime/disk-io-mgr.cc File be/src/runtime/disk-io-mgr.cc: Line 781: if (!FLAGS_disable_mem_pools && free_buffers_[idx].size() < FLAGS_max_free_io_buffers) { > If we remove the GC logic from TryConsume(), we may consider doing the GC i In the interest of avoiding throwaway work, my preference is to wait until after IMPALA-3200. I think the DiskIoMgr free lists will be unnecessary once we switch to allocating these buffers from the buffer pool, since the buffer pool will have its own free lists. -- To view, visit http://gerrit.cloudera.org:8080/3246 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I8777cf76f04d34a46f53d53005412e0f1d63b5b7 Gerrit-PatchSet: 4 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: Tim Armstrong <[email protected]> Gerrit-Reviewer: Michael Ho Gerrit-Reviewer: Michael Ho <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-HasComments: Yes
