09-26-2013 10:13 AM
On our systems, load generators as VM's running Windows Server 2008 R2; at suggestion of our operations folks, we removed OV agents & configured agent-less monitoring on controller & all load generator servers: this seemed to help on most of our load testing applications, regarding "80% CPU" error, more than anything else we tried. However, I'm now seeing "80%" generator CPU issue, again, with another HTTP app, involving WebFOCUS, with relatively small number of virtual users. WebFOCUS application is one we've never load tested before-- so am investigating that...
10-18-2013 11:51 AM
10-21-2013 12:01 AM
Please make sure the following:
1) The CPU usage is caused by mmdrv process and not some other process such as Antivirus/Backup/IT script
2) The LG is not really overloaded, this is more tricky to check but try to see how much CPU a single vUser is using. The CPU usage depends on the script code and on the runtime settings. For example, make sure there is think time and no logging as these two things can increase the CPU usage.
If 1 and 2 didn't help please check the Hits per second graph. If it drops to 0 during the CPU 100% period please contact me directly at firstname.lastname@example.org
In the past couple of months I spoke to many customers regarding this error message and all but one had problems 1 or 2 as described above. Only one customer encountered a real issue which we are investigating now.
12-04-2013 07:04 AM
I guess i've found a workaround soln to this problem.
In the bin folder that is in LR installation folder (C:\Program Files\HP\LoadRunner\bin) there should be a file named: mdrv.exe.config
Could you rename this file to "mdrv.exe.config_" and try to rerun the vusers ?
01-13-2014 10:58 AM
This mdrv.exe file is located on the generator, correct??
Do I just need to rename the existing file and then run the test again or do I first need to make a copy of the file and then rename the original?
Please let me know.