[
https://issues.apache.org/jira/browse/CARBONDATA-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ajantha Bhat resolved CARBONDATA-3670.
--------------------------------------
Fix Version/s: (was: 2.1.1)
Resolution: Duplicate
> Support compress offheap columnpage directly, avoding a copy of data from
> offhead to heap when compressed.
> ----------------------------------------------------------------------------------------------------------
>
> Key: CARBONDATA-3670
> URL: https://issues.apache.org/jira/browse/CARBONDATA-3670
> Project: CarbonData
> Issue Type: Wish
> Components: core
> Affects Versions: 2.0.0
> Reporter: Xingjun Hao
> Priority: Minor
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> When writing data, the columnpages are stored on the offheap, the pages will
> be compressed to save storage cost. Now, in the compression processing, the
> data will be copied from the offheap to the heap before compressed, which
> leads to heavier GC overhead compared with compress offhead directly.
> To sum up, we support compress offheap columnpage directly, avoding a copy of
> data from offhead to heap when compressed.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
