[ https://issues.apache.org/jira/browse/CARBONDATA-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kunal Kapoor updated CARBONDATA-3670: ------------------------------------- Fix Version/s: (was: 2.1.0) 2.1.1 > 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 > Fix For: 2.1.1 > > 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)