improve send performance faster

[gubaojian]

1. improve by mask 8 byte long,
2. add log check log.isTraceEnabled() to avoid string format, which may lead performance down
3. skip utf8 valid for already utf8 bytes
4. expose send encoded frame binary method

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[PhilipRoman]

Wow, I guess great minds think alike :) I had prepared a branch using the same optimizations after profiling. I'm not sure we want to expose some of these low level functions though.

Also, this function makes no sense:

  public void sendEncodedBinaryFrame(ByteBuffer binaryFrame) {
    List<ByteBuffer> bufs = new ArrayList<>(4);
    sendEncodedBinaryFrames(bufs);
  }

In a few days I will have time to review and/or work on this.

[gubaojian]

Wow, I guess great minds think alike :) I had prepared a branch using the same optimizations after profiling. I'm not sure we want to expose some of these low level functions though.

Also, this function makes no sense:

  public void sendEncodedBinaryFrame(ByteBuffer binaryFrame) {
    List<ByteBuffer> bufs = new ArrayList<>(4);
    sendEncodedBinaryFrames(bufs);
  }

In a few days I will have time to review and/or work on this.

it can use to test send performance of io without effect by Protocol encode cost.