You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2016/07/28 21:59:20 UTC

[jira] [Created] (HADOOP-13438) Optimize IPC server protobuf decoding

Daryn Sharp created HADOOP-13438:
------------------------------------

             Summary: Optimize IPC server protobuf decoding
                 Key: HADOOP-13438
                 URL: https://issues.apache.org/jira/browse/HADOOP-13438
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


The current use of the protobuf API uses an expensive code path.  The builder uses the parser to instantiate a message, then copies the message into the builder.  The parser is creating multi-layered internally buffering streams that cause excessive byte[] allocations.

Using the parser directly with a coded input stream backed by the byte[] from the wire will take a fast-path straight to the pb message's ctor.  Substantially less garbage is generated.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-dev-help@hadoop.apache.org