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Posted to issues@carbondata.apache.org by "Jacky Li (JIRA)" <ji...@apache.org> on 2018/02/27 16:54:00 UTC

[jira] [Resolved] (CARBONDATA-2184) Improve memory reuse for heap memory in `HeapMemoryAllocator`

     [ https://issues.apache.org/jira/browse/CARBONDATA-2184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacky Li resolved CARBONDATA-2184.
----------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 1.3.0)
                   1.3.1

> Improve memory reuse for heap memory in `HeapMemoryAllocator`
> -------------------------------------------------------------
>
>                 Key: CARBONDATA-2184
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2184
>             Project: CarbonData
>          Issue Type: Improvement
>          Components: core
>            Reporter: Zhichao  Zhang
>            Assignee: Zhichao  Zhang
>            Priority: Minor
>             Fix For: 1.4.0, 1.3.1
>
>          Time Spent: 4h 10m
>  Remaining Estimate: 0h
>
> The description in [SPARK-21860|https://issues.apache.org/jira/browse/SPARK-21860]:
> In `HeapMemoryAllocator`, when allocating memory from pool, and the key of pool is memory size.
> Actually some size of memory ,such as 1025bytes,1026bytes,......1032bytes, we can think they are the same，because we allocate memory in multiples of 8 bytes.
> In this case, we can improve memory reuse.



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