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https://issues.apache.org/jira/browse/HDDS-10382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duong updated HDDS-10382:
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Attachment: netty_bytebuf_allocation.png
> Optimize Netty memory allocation by avoiding zero assignment in Java 9+
> -----------------------------------------------------------------------
>
> Key: HDDS-10382
> URL: https://issues.apache.org/jira/browse/HDDS-10382
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Duong
> Priority: Major
> Attachments: netty_bytebuf_allocation.png
>
>
> Add "-Dorg.apache.ratis.thirdparty.io.netty.tryReflectionSetAccessible=true"
> to the ozone script to allow Netty unsafe memory allocation.
>
> According to Netty doc.
> {quote}When a new {{java.nio.ByteBuffer}} is allocated, its content is filled
> with zeroes. This "zeroing" consumes CPU cycles and memory bandwidth.
> Normally, the buffer is then immediately filled from some data source, so the
> zeroing did no good.
> {quote}
>
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