NMock

NMock is a dynamic mock object library for .NET. Mock objects make it easier to test single components—often single classes—without relying on real implementations of all of the other components. This means we can test just one class, rather than a whole tree of objects, and can pinpoint bugs much more clearly.
Home page

Comparison of logging services.

We have lead comparison 3 popular services:
Microsoft Enterprise Library
Log4net
Syslog

The scenario of the test:
1. Reading of a line from a DB.
2. Record of a line in a DB.

Here results on 500 inquiries:

	Log4Net	Enerprise Library	Syslog
Concurrency Level	25	25	25
Time taken for tests	1.617758 seconds	1.794552 seconds	1.270281 seconds
Complete requests	500	500	500
Failed requests	0	0	0
Write errors	0	0	0
Total transferred	566968 bytes	701000 bytes	695000 bytes
Requests per second	309.07 [#/sec] (mean)	278.62 [#/sec] (mean)	393.61 [#/sec] (mean)
Time per request	80.888 [ms] (mean)	89.728 [ms] (mean)	63.514 [ms] (mean)
Time per request(mean, across all concurrent requests)	3.236 [ms]	3.589 [ms]	2.541 [ms]
Transfer rate	341.83 Kbytes/sec]	381.15 [Kbytes/sec]	533.74 [Kbytes/sec]