[LUCENENET-643] NIOFSDirectory performance can be improved

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Lucene.Net 4.8.0
• Fix Version/s: Lucene.Net 4.8.0
• Component/s: Lucene.Net Core
• Flags: Important
• Assignee: Shad Storhaug
• Reporter: Shad Storhaug
• Created: 07/Feb/20 13:12
• Updated: 09/Feb/20 06:43
• Resolved: 09/Feb/20 06:43

Description

The FileStreamExtensions::Read() method is copying bytes from the stream into a ByteBuffer one byte at a time. Performance can be improved by using an overload of Stream.Read() that accepts a byte array.

If the ByteBuffer.HasArray property is true, a single read operation can be done to move the data into ByteBuffer.Array. Otherwise, the data must be copied into a temporary buffer before calling ByteBuffer.Put.

Issue Links

• Is contained by: LUCENENET-630 Identify/Fix Bottlenecks