[jira] [Updated] (LUCENE-5695) Add DocIdSet.ramBytesUsed

["Adrien Grand (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-5695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrien Grand updated LUCENE-5695:
---------------------------------

    Attachment: LUCENE-5695.patch

Here is a patch.

> Add DocIdSet.ramBytesUsed
> -------------------------
>
>                 Key: LUCENE-5695
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5695
>             Project: Lucene - Core
>          Issue Type: New Feature
>    Affects Versions: 4.9, 5.0
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>         Attachments: LUCENE-5695.patch
>
>
> LUCENE-5463 tried to remove calls to {{RamUsageEstimator.sizeOf(Object)}} yet it was not always possible to remove the call when there was no other API to compute the memory usage of a particular class. In particular, this is the case for {{CachingWrapperFilter.sizeInBytes()}} that needs to be able to get the memory usage of any cacheable {{DocIdSet}} instance.
> We could add {{DocIdSet.ramBytesUsed}} in order to remove the need for {{RamUsageEstimator}}. This will also help have bounded filter caches and take the size of the cached doc id sets into account when doing evictions.



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