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Posted to pr@cassandra.apache.org by GitBox <gi...@apache.org> on 2019/04/10 23:35:00 UTC
[GitHub] [cassandra] mulugetam opened a new pull request #309: Adding direct
IO support for the read path.
mulugetam opened a new pull request #309: Adding direct IO support for the read path.
URL: https://github.com/apache/cassandra/pull/309
This patch adds direct IO support for the read path using JDK-10+ API. The feature is optional and can be enabled via the enable_direct_io_for_read_path flag.
A Cassandra stress test we conducted using the insanity schema showed a throughput gain of up to 60% on flash drives.
Ref and discussion is here: https://issues.apache.org/jira/browse/CASSANDRA-14466
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