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Hudson commented on HBASE-5945: ------------------------------- SUCCESS: Integrated in hbase-0.96-hadoop2 #125 (See [https://builds.apache.org/job/hbase-0.96-hadoop2/125/]) HBASE-5945 Reduce buffer copies in IPC server response path (stack: rev 1543463) * /hbase/branches/0.96/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/IPCUtil.java * /hbase/branches/0.96/hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java * /hbase/branches/0.96/hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSource.java * /hbase/branches/0.96/hbase-hadoop1-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceImpl.java * /hbase/branches/0.96/hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceImpl.java * /hbase/branches/0.96/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/BufferChain.java * /hbase/branches/0.96/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServer.java * /hbase/branches/0.96/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RpcServer.java * /hbase/branches/0.96/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java * /hbase/branches/0.96/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestFromClientSide3.java * /hbase/branches/0.96/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverInterface.java * /hbase/branches/0.96/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/TestBufferChain.java * /hbase/branches/0.96/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/TestIPC.java > Reduce buffer copies in IPC server response path > ------------------------------------------------ > > Key: HBASE-5945 > URL: https://issues.apache.org/jira/browse/HBASE-5945 > Project: HBase > Issue Type: Improvement > Components: IPC/RPC > Affects Versions: 0.95.2 > Reporter: Todd Lipcon > Assignee: stack > Fix For: 0.96.1 > > Attachments: 5945-in-progress.2.1.patch, 5945-in-progress.2.patch, > 5945-in-progress.patch, 5945v2.txt, 5945v4.txt, 5945v4.txt, 5945v5.txt, > buffer-copies.txt, even-fewer-copies.txt, hbase-5495.txt, with_patch.png, > without_patch.png > > > The new PB code is sloppy with buffers and makes several needless copies. > This increases GC time a lot. A few simple changes can cut this back down. -- This message was sent by Atlassian JIRA (v6.1#6144)