ContributionsMost RecentMost LikesSolutionsRe: Memory problems with 3.40.0 You can update to the latest version 3.40.1 witch addresses this issue https://support.smartbear.com/readyapi/downloads/ Re: Memory problems with 3.40.0 Glad to hear that! Happy testing! Re: Memory problems with 3.40.0 You don't have to use just these two values 8000m or 1024m. 1024m could be a bit too small, you can set the memory limits according to your resources: 2000m, 3000m, etc... . As long as Xmx and Xms are equal you should be fine. Re: More than 95% of Java heap memory is being used warning. Mdar It's a know issue introduced in 3.40.0 which generates a false error message "More than 95% of the Java heap memory is being used. The test results may be impacted. It is recommended you increase the VM option -Xmx or -XX:MaxHeapSize in the file ReadyAPI.vmoptions." A quick workaround is to set your Xms option to the same value as the Xmx so in your case: -Xms8000m -Xmx8000m Sorry for the inconvenience, a patch version will be released shortly. Disclaimer: I'm part of the ReadyAPI team. Re: Memory problems with 3.40.0 mogranovitch JoostDG It's a known issue introduced in 3.40.0 , the 95% memory used Error is a false positive. A quick workaround is to increase the default Xms128m to have the same value as your Xmx. i.e. : -Xms1024m -Xmx1024m or -Xms8000m -Xmx8000m depending on your available resources. Keep in mind that if you are running performance tests 2048m is the minimum amount recommended. Sorry for the inconvenience, a patch version will be released shortly. Disclaimer: I'm part of the ReadyAPI team.