[GEODE-1301] HeapDataOutputStream.sendTo(SocketChannel, ByteBuffer) could be optimized

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: offheap
• Labels: offheap performance
• Assignee: Unassigned
• Reporter: Darrel Schneider
• Created: 25/Apr/16 18:08
• Updated: 29/Mar/19 22:36

Description

Currently HeapDataOutputStream.sendTo(SocketChannel, ByteBuffer) will call Channel.write for each direct ByteBuffer in the HeapDataOutputStream (which can be multiple if doNotCopy=true). And it will call combine consecutive heap ByteBuffers into a write call.
It would be much better if it called Channel.write once with an array of ByteBuffers resulting in one system call the way HeapDataOutputStream.sendTo(SocketChannel) does.