[AVRO-1332] Improve C# DatumReader performance

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.5
• Fix Version/s: 1.7.6
• Component/s: csharp
• Labels: performance
• Release Note: Improved DatumReader performance
• Assignee: David McIntosh
• Reporter: David McIntosh
• Created: 18/May/13 20:13
• Updated: 23/Jan/14 21:58
• Resolved: 08/Nov/13 22:16

Description

The current implementations of the C# datum readers perform resolution of the reader and writer schema on every call to Read. In my tests this was causing it to perform poorly when reading a large number of records (slower than parsing the same data from delimited text files). It would be more efficient if the reader only needed to resolve the schemas once.