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]