Tim Armstrong has posted comments on this change. Change subject: IMPALA-3766: Applying LZ4 compression on buffers before spilling ......................................................................
Patch Set 2: This is interesting, I would have expected spilling was limited by I/O speed, but based on this it's probably more limited by compute. Do you know what kind of device your /tmp is mounted on? Is it an SSD. -- To view, visit http://gerrit.cloudera.org:8080/3478 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I4d49bd8d6d7643c84cefd1274c18b52907ca1488 Gerrit-PatchSet: 2 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: anujphadke <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-Reviewer: anujphadke <[email protected]> Gerrit-HasComments: No
