[JBoss JIRA] (ISPN-5728) Implement all the default methods in Java 8's Map interface
by Pedro Ruivo (JIRA)
[ https://issues.jboss.org/browse/ISPN-5728?page=com.atlassian.jira.plugin.... ]
Pedro Ruivo updated ISPN-5728:
------------------------------
Fix Version/s: 9.0.0.CR3
(was: 9.0.0.CR2)
> Implement all the default methods in Java 8's Map interface
> -----------------------------------------------------------
>
> Key: ISPN-5728
> URL: https://issues.jboss.org/browse/ISPN-5728
> Project: Infinispan
> Issue Type: Feature Request
> Components: Core
> Affects Versions: 8.0.0.Final
> Reporter: Dan Berindei
> Fix For: 9.0.0.CR3
>
>
> Java 8 added many new methods to the {{Map}} interface. Some of them were already present in {{ConcurrentMap}}, but others are new: {{getOrDefault()}}, {{forEach()}}, {{replaceAll()}}, {{computeIfAbsent()}}, {{computeIfPresent()}}, {{compute()}}, {{merge()}}.
> We should try to write Infinispan-specific implementations wherever that would improve correctness and/or performance.
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[JBoss JIRA] (ISPN-5614) Write performance regression after ISPN-5484
by Pedro Ruivo (JIRA)
[ https://issues.jboss.org/browse/ISPN-5614?page=com.atlassian.jira.plugin.... ]
Pedro Ruivo updated ISPN-5614:
------------------------------
Fix Version/s: 9.0.0.CR3
(was: 9.0.0.CR2)
> Write performance regression after ISPN-5484
> --------------------------------------------
>
> Key: ISPN-5614
> URL: https://issues.jboss.org/browse/ISPN-5614
> Project: Infinispan
> Issue Type: Bug
> Components: Core
> Affects Versions: 8.0.0.Beta1
> Reporter: Dan Berindei
> Assignee: Dan Berindei
> Fix For: 9.0.0.CR3
>
>
> Regression test shows a significant drop in throughput in the replicated and distributed write tests.
> This was after adjusting the internal thread pool settings in the JGroups configuration: with the default (min=5, max=20, queue=0), the distributed read test would fail to finish.
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[JBoss JIRA] (ISPN-5642) Reduce contention in the RPC timeout handling
by Pedro Ruivo (JIRA)
[ https://issues.jboss.org/browse/ISPN-5642?page=com.atlassian.jira.plugin.... ]
Pedro Ruivo updated ISPN-5642:
------------------------------
Fix Version/s: 9.0.0.CR3
(was: 9.0.0.CR2)
> Reduce contention in the RPC timeout handling
> ---------------------------------------------
>
> Key: ISPN-5642
> URL: https://issues.jboss.org/browse/ISPN-5642
> Project: Infinispan
> Issue Type: Task
> Components: Core
> Affects Versions: 8.0.0.Beta2
> Reporter: Dan Berindei
> Assignee: Dan Berindei
> Priority: Minor
> Labels: help_wanted
> Fix For: 9.0.0.CR3
>
>
> Most of the RPC timeout tasks are cancelled way before their timeout expires. This means the scheduler spends a lot of time reordering the elements of its DelayQueue.
> It should be possible to store the tasks with a long timeout (e.g. 1s) in a queue and only move them to the scheduler's priority queue when they have less than 1s to expiration (e.g. by a worker thread that runs every 0.5s)
> Storing all the tasks in a single queue may be impractical because the worker thread would have more and work to do as load increases and the RPCs take longer to finish, so a [hashed timing wheel|http://www.cse.wustl.edu/~cdgill/courses/cs6874/TimingWheels.ppt] may be needed.
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