MySQL Bugs: #50902: Performance improvement in Connector/NET

Bug #50902	Performance improvement in Connector/NET
Submitted:	4 Feb 2010 8:43	Modified:	4 Feb 2010 18:10
Reporter:	Bogdan Degtyariov	Email Updates:
Status:	Not a Bug	Impact on me:	None
Category:	Connector / NET	Severity:	S3 (Non-critical)
Version:	6.2	OS:	Any
Assigned to:	Bogdan Degtyariov	CPU Architecture:	Any
Tags:	GetBytes

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Description:
MySqlDataReader.GetBytes() method in Connector/NET 6.2 is still using the expensive "is" type comparison:

if (val is MySqlBinary)
 ...

Sometimes this can be the bottleneck that slows down the results processing up to 15%.

How to repeat:
Call MySqlDataReader.GetBytes()

Suggested fix:
See the attached .diff file

"is" comparison replaced with "=="

Attachment: perf_patch.diff (text/x-diff), 780 bytes.