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https://issues.apache.org/jira/browse/SYSTEMML-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2017.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.0
> Missing frame delete from buffer pool on rmvar, cpvar, etc
> ----------------------------------------------------------
>
> Key: SYSTEMML-2017
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2017
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Fix For: SystemML 1.0
>
>
> A recent scenario with frame appends and casts in loops revealed a hidden
> buffer issues regarding frames. As it turned out, frames are never deleted on
> rmvar, cpvar or similar instructions which leads to shrinking buffer pool
> size, unnecessary GC and unnecessary evictions. At script level this issue
> manifests itself by fast early iterations, but a significant performance hit
> as soon as the buffer pool size is reached.
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