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https://issues.apache.org/jira/browse/HBASE-22532?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zheng Hu updated HBASE-22532:
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Description:
After disabled the block cache, and with the following config:
{code}
# Disable the block cache
hfile.block.cache.size=0
hbase.ipc.server.allocator.buffer.size=66560
hbase.ipc.server.reservoir.minimal.allocating.size=0
{code}
The ByteBuff for block should be expected to be a SingleByteBuff, which will
use the hadoop native lib to validate the checksum, while in the cpu flame
graph [
> There's still too much cpu wasting on validating checksum even if
> buffer.size=65KB
> ----------------------------------------------------------------------------------
>
> Key: HBASE-22532
> URL: https://issues.apache.org/jira/browse/HBASE-22532
> Project: HBase
> Issue Type: Sub-task
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: async-prof-pid-27827-cpu-3.svg
>
>
> After disabled the block cache, and with the following config:
> {code}
> # Disable the block cache
> hfile.block.cache.size=0
> hbase.ipc.server.allocator.buffer.size=66560
> hbase.ipc.server.reservoir.minimal.allocating.size=0
> {code}
> The ByteBuff for block should be expected to be a SingleByteBuff, which will
> use the hadoop native lib to validate the checksum, while in the cpu flame
> graph [
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