Highlighted
Absent Member.
Absent Member.
177 views

VM server sudden Spike in Memory Used during load test

Hello,

I just started load testing apps hosted on VMware for a few months now. Currently, we are load testing an tomcat app on a VM Redhat linux server. I've ran several 24 hour load tests and at the last hour of the load test, the used memory on the server (-/+buffers/cache) spikes for about 10 to 15 minutes, then it returns back to normal. I do see performance degradation during this spike.
Now, I setup monitors to caputure every process memory usage during the 24 hour load test and nothing shows up eating or consuming free memory. The tomcat java process is not growing, so it does not seem that the app is causing this issue. at this point, i'm thinking that there might be something wrong with the VM server itself. don't know what to think about this now... by the way, I load tested tomcat apps in VMs before and never saw this spikes in memory used.

has anyone experience this issue before?
0 Likes
1 Reply
Highlighted
Absent Member.
Absent Member.

Re: VM server sudden Spike in Memory Used during load test

Check if there is any other activity that goes on while you are running the test.
Like a batch job or may be somebody else is running the test.

Try not to use too many counters at once. Start with basic ones like memory, cpu, disk.

Narrow it down.
0 Likes
The opinions expressed above are the personal opinions of the authors, not of Micro Focus. By using this site, you accept the Terms of Use and Rules of Participation. Certain versions of content ("Material") accessible here may contain branding from Hewlett-Packard Company (now HP Inc.) and Hewlett Packard Enterprise Company. As of September 1, 2017, the Material is now offered by Micro Focus, a separately owned and operated company. Any reference to the HP and Hewlett Packard Enterprise/HPE marks is historical in nature, and the HP and Hewlett Packard Enterprise/HPE marks are the property of their respective owners.