Todd Lipcon created HADOOP-9601:
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Summary: Support native CRC on byte arrays
Key: HADOOP-9601
URL: https://issues.apache.org/jira/browse/HADOOP-9601
Project: Hadoop Common
Issue Type: Improvement
Components: performance, util
Affects Versions: 3.0.0
Reporter: Todd Lipcon
When we first implemented the Native CRC code, we only did so for direct byte
buffers, because these correspond directly to native heap memory and thus make
it easy to access via JNI. We'd generally assumed that accessing byte[] arrays
from JNI was not efficient enough, but now that I know more about JNI I don't
think that's true -- we just need to make sure that the critical sections where
we lock the buffers are short.
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