<p dir="ltr">On Jan 4, 2016 6:24 PM, "Mark Felder" <<a href="mailto:feld@feld.me">feld@feld.me</a>> wrote:<br>
><br>
><br>
><br>
> On Mon, Jan 4, 2016, at 19:16, Stephen Weeks wrote:<br>
> > We have several varnishd instances that have been running fine for<br>
> > years at constant memory use. We've recently decided to upgrade our<br>
> > linux distribution. After some troubleshooting, we were unable to<br>
> > find a configuration of Varnish on the new distro version that did not<br>
> > have dramatically higher memory usage.<br>
><br>
> I suspect Linux kernel's memory management changes are your problem, not<br>
> Varnish.<br>
><br>
> What is the version of the kernel on the instances that work well for<br>
> you?</p>
<p dir="ltr">The instances with constant memory use are on Linux 3.2. All the misbehaving instances have been on Linux 3.19.</p>
<p dir="ltr">Any ideas how to mitigate this or any Linux kernel configuration I could change? Any ideas what kernel behavior changes could be responsible for this?<br>
</p>