[jira] [Created] (IGNITE-15234) Thin 3.0: Perf: ByteBuf-based message packer and unpacker

["Pavel Tupitsyn (Jira)" <ji...@apache.org>]

Pavel Tupitsyn created IGNITE-15234:
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             Summary: Thin 3.0: Perf: ByteBuf-based message packer and unpacker
                 Key: IGNITE-15234
                 URL: https://issues.apache.org/jira/browse/IGNITE-15234
             Project: Ignite
          Issue Type: Improvement
          Components: thin client
    Affects Versions: 3.0.0-alpha3
            Reporter: Pavel Tupitsyn
            Assignee: Pavel Tupitsyn


Current implementations of *ClientMessagePacker* and *ClientMessageUnpacker* are based on *msgpack-core* library and involve intermediate classes and buffers:

{code:java}
    public ClientMessageUnpacker(ByteBuf buf) {
        super(new InputStreamBufferInput(new ByteBufInputStream(buf)), MessagePack.DEFAULT_UNPACKER_CONFIG);

        this.buf = buf;
    }
{code}

* MessageUnpacker and MessagePacker classes use internal heap-allocated buffers
* InputStreamBufferInput uses another buffer

Netty ByteBuf is efficient by itself, we can implement packer and unpacker directly on top of it without extra buffers and indirection.



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