On Fri, Sep 11, 2015 at 9:36 AM, Leo Donahue <donahu...@gmail.com> wrote:
> Good day, > > I see this topic come up from time to time on the list. Can someone point > me to what heap thrashing looks like? > > Googled java heap thrashing and looked at the images, but there isn't much > to look at. > > I also tried googling for ventricular tachycardia to see if I could find a > similar graph - it's close to what I'm seeing in VisualVM, but not quite. > > Is heap thrashing a very "closely spaced" saw tooth pattern? > > Leo > This is about as close as I can find that is similar to what I'm seeing. On the left side of the graph, imagine the spacing so close together that it looks like a solid blue read out in the monitor. When I stop the webapp, the jvm adjusts itself back to normal. It's only during servicing requests that I see the very closely spaced pattern. http://i.stack.imgur.com/B9oPL.png
