[jira] [Closed] (SYSTEMML-2017) Missing frame delete from buffer pool on rmvar, cpvar, etc

["Matthias Boehm (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SYSTEMML-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm closed SYSTEMML-2017.
------------------------------------
       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.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)