Hello Alexey Serbin, Dan Burkert,
I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/9398
to review the following change.
Change subject: java: provide our own preferred cipher suite list
......................................................................
java: provide our own preferred cipher suite list
This updates the Java client to use a cipher suite list which matches
the server side. This has a very big performance benefit since it
prioritizes GCM-based ciphers which are significantly faster than those
that use SHA256 or SHA384 HMAC for integrity.
In particular, a YCSB in-memory random-read workload I was running got
~60% faster. The CPU profile on the server previously showed most of its
time in SHA hash calculation, and now shows only relatively little CPU
in GCM-related calls.
Change-Id: I4b2853dfd8d330bdf003924a5574fde865f54249
---
M java/kudu-client/src/main/java/org/apache/kudu/client/Negotiator.java
1 file changed, 29 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/98/9398/1
--
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I4b2853dfd8d330bdf003924a5574fde865f54249
Gerrit-Change-Number: 9398
Gerrit-PatchSet: 1
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Dan Burkert <[email protected]>
