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https://issues.apache.org/jira/browse/IGNITE-8483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16501563#comment-16501563
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Andrew Mashenkov commented on IGNITE-8483:
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Possibly, performance issue is fixed in IGNITE-8681.
We have to recheck this and either close or implement this ticket.
> Per partition TTL pending tree for in-memory caches.
> ----------------------------------------------------
>
> Key: IGNITE-8483
> URL: https://issues.apache.org/jira/browse/IGNITE-8483
> Project: Ignite
> Issue Type: Improvement
> Components: cache
> Reporter: Andrew Mashenkov
> Priority: Minor
>
> For in memory cache pending tree root page is allocated when ignite store is
> initializing even if no ExpiryPolicy is used.
> We have to implement lazy PendingTree initialization and switch to
> per-partition based PendingTree as we've done for persistent caches.
> Switching to per-partition based PendingTree without lazy initialization will
> bump us with 1024 (default partitioned cache settings) unevictable pages per
> CacheGroup if no ExpiryPolicy is used.
>
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