[ grinder-Bugs-3046909 ] Very high test time standard deviation

"SourceForge.net" <[email protected]>
Newsgroups gmane.comp.java.grinder.devel
Message-ID <[email protected]>
Bugs item #3046909, was opened at 2010-08-17 11:59
Message generated for change (Tracker Item Submitted) made by phawieze
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=118598&aid=3046909&group_id=18598

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Console
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By:  Paul W (phawieze)
Assigned to: Nobody/Anonymous (nobody)
Summary: Very high test time standard deviation

Initial Comment:
Hi, 

I've ran a succesfull test with the grinder and it really helped to measure the performance of my system. 

However there is still one issue with the results that i can't explain. The mean test times seem to be calculated correctly. However the standard deviation is in some places ten times as high, which has to mean that grinder recorded very high negative and positive results. Is this in some way related to the faq entry 1.5.1 (grinder reports negative test times)? The difference is that i'm running the agents and console on Windows 7. Or is it related to 1.5.6 (limits to accurate timings). The difference with this issue is that my mean times seem to be correct and that just the standard deviation ain't correct. 

Test	Description		Succesfull 	                     Mean Test	                     Test time standard deviaton
			tests	Errors	time 	
Test 100	Page 1	 	500	0	451		844
Test 101	GET livelink.exe	500	0	118		569
Test 102	GET livelink.exe	500	0	88,7		191
Test 103	GET livelink.css	500	0	15,6		126
Test 104	GET global.js		500	0	11,8		135
Test 105	GET globalmenus.js	500	0	3,12		0,832
Test 106	GET globalmenu.js	500	0	3,05		1,17
Test 107	GET menu.js		500	0	11,1		167
Test 108	GET functionmenu.js	500	0	3,34		1,6
Test 109	GET newsticker.js	500	0	3,2		2,9

Grinder version 3.4
Java version 1.6.0_11-b03  (Version 6 build 11)

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=118598&aid=3046909&group_id=18598

------------------------------------------------------------------------------
This SF.net email is sponsored by 

Make an app they can't live without
Enter the BlackBerry Developer Challenge
http://p.sf.net/sfu/RIM-dev2dev
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.