[ https://issues.apache.org/jira/browse/KUDU-972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon updated KUDU-972: ----------------------------- Status: In Review (was: Open) > cache should track memory overhead > ---------------------------------- > > Key: KUDU-972 > URL: https://issues.apache.org/jira/browse/KUDU-972 > Project: Kudu > Issue Type: Bug > Components: cfile, util > Affects Versions: Private Beta > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Priority: Major > > Currently the cache only accounts for the cache _values_ in the memtracker. > Each key seems to have 88 or so bytes of memory usage as well (potentially > rounded up due to allocation overhead, etc). > For the DRAM cache, this is still a ~700:1 ratio assuming 64kb block sizes, > but for PMEM, where we expect hundreds of GBs of block cache, a 700:1 ratio > may turn out to be somewhat substantial. -- This message was sent by Atlassian JIRA (v7.6.3#76005)