Todd Lipcon has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/9092 )
Change subject: consensus: avoid extra thread wakeups for Peer::SignalRequest ...................................................................... consensus: avoid extra thread wakeups for Peer::SignalRequest Looking at a profile on a YCSB workload I see a significant amount of CPU in submitting tasks to the raft threadpool for requests. My guess is that, in a workload like this, we often call SignalRequest while the request was already pending. This patch avoids submitting the threadpool task if there is already a task pending. Change-Id: I62ec4ea91e976590ce2de4fa34db61eaf9aab92a Reviewed-on: http://gerrit.cloudera.org:8080/9092 Tested-by: Kudu Jenkins Reviewed-by: David Ribeiro Alves <[email protected]> --- M src/kudu/consensus/consensus_peers.cc 1 file changed, 6 insertions(+), 0 deletions(-) Approvals: Kudu Jenkins: Verified David Ribeiro Alves: Looks good to me, approved -- To view, visit http://gerrit.cloudera.org:8080/9092 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I62ec4ea91e976590ce2de4fa34db61eaf9aab92a Gerrit-Change-Number: 9092 Gerrit-PatchSet: 3 Gerrit-Owner: Todd Lipcon <[email protected]> Gerrit-Reviewer: David Ribeiro Alves <[email protected]> Gerrit-Reviewer: Kudu Jenkins Gerrit-Reviewer: Mike Percy <[email protected]> Gerrit-Reviewer: Tidy Bot Gerrit-Reviewer: Todd Lipcon <[email protected]>
