[jboss-jira] [JBoss JIRA] Updated: (JGRP-813) Performance enhancements
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https://jira.jboss.org/jira/browse/JGRP-813?page=com.atlassian.jira.plugi...
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Bela Ban updated JGRP-813:
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DataOutputStream is synchronized too, this is a double synchronization on a write ! Need
to replace these 2 classes with their NIO equivalents !
Performance enhancements
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Key: JGRP-813
URL: https://jira.jboss.org/jira/browse/JGRP-813
Project: JGroups
Issue Type: Task
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 2.7
Take a look at the following items (visualvm, -Xprof, -Xrunprof):
- FD: message counts as heartbeat: enable / disable this as it is overhead
- IpAddress: hashCode() can be more efficient. Take a look at equals(), too. Possibly get
rid of canonicalization
Potential hotspots:
- NakReceiverWindow.stable()
- IpAddress.compare()
- Retransmitter.remove()
- Message: canonicalization cost (1 hashmap lookup/insertion) ?
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