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https://issues.apache.org/jira/browse/TS-2020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712766#comment-13712766
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Phil Sorber commented on TS-2020:
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Looked at this code with [~amc] and found that we should actually be creating
an EvacuationBlock in the evacuate DLL upon insertion into the ram_cache and
then removing it upon eviction from the ram_cache. We will also need to take
the Vol::mutex and increment the EvacuationBlock.readers if one already exists.
> Add check to evacuation code to do RAM cache lookup and evacuate on a hit
> -------------------------------------------------------------------------
>
> Key: TS-2020
> URL: https://issues.apache.org/jira/browse/TS-2020
> Project: Traffic Server
> Issue Type: Improvement
> Reporter: Phil Sorber
> Assignee: Phil Sorber
> Labels: C
> Fix For: 3.5.1
>
>
> This will allow us to keep hotter items in the disk cache longer. It's not a
> full LRU but it's cheap and will help.
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