Todd Lipcon has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/10242 )
Change subject: benchmarks: update parameters for mt-bloomfile benchmark ...................................................................... benchmarks: update parameters for mt-bloomfile benchmark The old parameters were somewhat unrealistic: - The default bloom block size is 4kb, but it was using 32kb. - The cache capacity was set to 1MB, which meant that each shard on a multicore system was only 50KB or less. With the new optimization that allows 1% slack in MemTracker accounting, that slack was only 500bytes or less. With 4kb bloom blocks, that optimization was effectively disabled. The new parameters are slightly more realistic while keeping the performance reasonable: 100MB cache capacity (>1MB per shard even on 88 core system) and 4kb blocks. Runtime is still reasonable - 4-5 seconds for the query phase. The number of unique keys is bumped up to 150M to ensure cache churn. Change-Id: I0a85fe222285ee20d1e21ddf260cdb50c4994e96 Reviewed-on: http://gerrit.cloudera.org:8080/10242 Reviewed-by: Adar Dembo <[email protected]> Tested-by: Kudu Jenkins --- M src/kudu/scripts/benchmarks.sh 1 file changed, 5 insertions(+), 3 deletions(-) Approvals: Adar Dembo: Looks good to me, approved Kudu Jenkins: Verified -- To view, visit http://gerrit.cloudera.org:8080/10242 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I0a85fe222285ee20d1e21ddf260cdb50c4994e96 Gerrit-Change-Number: 10242 Gerrit-PatchSet: 2 Gerrit-Owner: Todd Lipcon <[email protected]> Gerrit-Reviewer: Adar Dembo <[email protected]> Gerrit-Reviewer: Kudu Jenkins Gerrit-Reviewer: Todd Lipcon <[email protected]>
