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https://issues.apache.org/jira/browse/IGNITE-15666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17449101#comment-17449101
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Evgeny Stanilovsky commented on IGNITE-15666:
---------------------------------------------

[~ivandasch] But, what about mentioned : [Statistics Effects of Cache 
Operations|https://download.oracle.com/otn-pub/jcp/jcache-1_0-fr-eval-spec/JSR107FinalSpecification.pdf?AuthParam=1637836318_085ab63bdd4a3a07d19359ec45afc553]
 ? 
 /**
 * The total number of removals from the cache. This does not include evictions,
 * where the cache itself initiates the removal to make space.
 *
 * @return the number of removals
 */
 long getCacheRemovals();

/**
 * The mean time to execute removes.
 *
 * @return the time in µs
 */
 float getAverageRemoveTime();

and mentioned : method should update statistics if the method returns true.

and suppose - i removes existing key , removals = 1, rmTime = 100ns
and after a removes 100700 not existing keys , removals still = 1, time grows

> The remove metric value is different for sync and async methods
> ---------------------------------------------------------------
>
>                 Key: IGNITE-15666
>                 URL: https://issues.apache.org/jira/browse/IGNITE-15666
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Amelchev Nikita
>            Assignee: Amelchev Nikita
>            Priority: Major
>             Fix For: 2.12
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The remove metric value is different for sync and async methods.
> The following metrics are updated only if the key was exist for the sync 
> version:
> {noformat}
> RemoveTimeTotal
> RemoveTime
> {noformat}



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