Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’m developing a clojure application and it seemed to be using a lot more memory than it should. I thought it was a memory leak but after looking at it with jvisualvm it seems like the GC just isn’t running often enough. The red outlines are where I manually invoked the GC. Why is it allocating 300mb when it seems to be using around 30mb?
Make your heap smaller, if you think it’s too big. GC only runs when it has to.
(The controls have changed over the years, but I think they’re still in terms of an initial heap size, an increment size, and a max size. If your initial heap size is small, it will stay small so long as there’s no “high water mark” in heap usage that pushes it higher.)