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https://issues.apache.org/jira/browse/KAFKA-10470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma updated KAFKA-10470:
--------------------------------
    Priority: Major  (was: Minor)

> zstd decompression with small batches is slow and causes excessive GC
> ---------------------------------------------------------------------
>
>                 Key: KAFKA-10470
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10470
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 2.5.1
>            Reporter: Robert Wagner
>            Priority: Major
>
> Similar to KAFKA-5150 but for zstd instead of LZ4, it appears that a large 
> decompression buffer (128kb) created by zstd-jni per batch is causing a 
> significant performance bottleneck.
> The next upcoming version of zstd-jni (1.4.5-7) will have a new constructor 
> for ZstdInputStream that allows the client to pass its own buffer.  A similar 
> fix as [PR #2967|https://github.com/apache/kafka/pull/2967] could be used to 
> have the  ZstdConstructor use a BufferSupplier to re-use the decompression 
> buffer.



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