Hello Mike Percy,
I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/9092
to review the following change.
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
---
M src/kudu/consensus/consensus_peers.cc
1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/92/9092/1
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I62ec4ea91e976590ce2de4fa34db61eaf9aab92a
Gerrit-Change-Number: 9092
Gerrit-PatchSet: 1
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Mike Percy <[email protected]>
