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https://issues.apache.org/jira/browse/BEAM-9332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kyoungha Min updated BEAM-9332:
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Description:
It would be nice to see Beam using custom ByteArrayInput/OutputStream without
synchronization. It currently uses `ThreadLocal`, so using thread-safe stream
seems unnecessary. And all streams should never be access by more than 1 thread
from the start anyway.
Simply getting rid of the synchronized keyword will speed up about ~500 times
for single byte access. Something like org.apache.beam.sdk.util.VarInt will get
significant benefit from it.
was:It would be nice to see Beam using custom ByteArrayInput/OutputStream
without synchronization. It currently uses `ThreadLocal`, so using thread-safe
stream seems unnecessary. And all streams should never be access by more than 1
thread from the start anyway.
> To use ByteArrayOutput/InputStream without synchronization
> ----------------------------------------------------------
>
> Key: BEAM-9332
> URL: https://issues.apache.org/jira/browse/BEAM-9332
> Project: Beam
> Issue Type: Wish
> Components: sdk-java-core
> Reporter: Kyoungha Min
> Priority: Minor
>
> It would be nice to see Beam using custom ByteArrayInput/OutputStream without
> synchronization. It currently uses `ThreadLocal`, so using thread-safe stream
> seems unnecessary. And all streams should never be access by more than 1
> thread from the start anyway.
> Simply getting rid of the synchronized keyword will speed up about ~500 times
> for single byte access. Something like org.apache.beam.sdk.util.VarInt will
> get significant benefit from it.
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