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From "Darrel Schneider (JIRA)" <>
Subject [jira] [Resolved] (GEODE-1593) optimized offheap size too small for many customers
Date Wed, 06 Jul 2016 18:07:11 GMT


Darrel Schneider resolved GEODE-1593.
       Resolution: Fixed
    Fix Version/s: 1.0.0-incubating.M3

> optimized offheap size too small for many customers
> ---------------------------------------------------
>                 Key: GEODE-1593
>                 URL:
>             Project: Geode
>          Issue Type: Bug
>          Components: docs, offheap
>            Reporter: Darrel Schneider
>            Assignee: Darrel Schneider
>             Fix For: 1.0.0-incubating.M3
> The largest offheap memory allocation that will be optimally reused is 132k. A recent
survey of customers found that 35% of them had an average object size  greater than 132k.
This can be increased by setting the system property "gemfire.OFF_HEAP_FREE_LIST_COUNT". The
default for this property is "16384". This results in the jvm heap allocating a single array
of this size.
> If this property defaulted to "65535" then we could optimally reuse allocations smaller
than 528k.

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