[
https://issues.apache.org/jira/browse/HBASE-23107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16953808#comment-16953808
]
Hudson commented on HBASE-23107:
--------------------------------
Results for branch master
[build #1508 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/master/1508/]: (x)
*{color:red}-1 overall{color}*
----
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/master/1508//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/master/1508//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/master/1508//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> Avoid temp byte array creation when doing cacheDataOnWrite
> ----------------------------------------------------------
>
> Key: HBASE-23107
> URL: https://issues.apache.org/jira/browse/HBASE-23107
> Project: HBase
> Issue Type: Improvement
> Components: BlockCache, HFile
> Reporter: chenxu
> Assignee: chenxu
> Priority: Major
> Labels: gc
> Fix For: 3.0.0, 2.3.0
>
> Attachments: flamegraph_after.svg, flamegraph_before.svg
>
>
> code in HFileBlock.Writer.cloneUncompressedBufferWithHeader
> {code:java}
> ByteBuffer cloneUncompressedBufferWithHeader() {
> expectState(State.BLOCK_READY);
> byte[] uncompressedBlockBytesWithHeader = baosInMemory.toByteArray();
> …
> }
> {code}
> When cacheOnWrite feature enabled, a temp byte array was created in order to
> copy block’s data, we can avoid this by use of ByteBuffAllocator. This can
> improve GC performance in write heavy scenarios.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
