Hi, On Wed, Jun 13, 2018 at 2:40 PM, Florian Westphal <f...@strlen.de> wrote: > Can you test attached patch? > > I'd like to see how much the pcpu cache helps or if it actually hurts > in your setup. > > Subject: [TEST PATCH 4.14.y] xfrm: remove pcpu policy cache > > We need to re-evaluate if this still buys anything after indirect calls > got more expensive (retpolines). > When pcpu xdst exists, it has to be validated first (which needs > indirect calls). So even if hit rate is good, it might be cheaper to > allocate a new xdst entry. > > Furthermore, the current xdst cache needs to run with BH off, which > is also not needed when its removed. > > Compile tested only.
Thanks! I will prepare a firmware for one of my devices tonight, start testing tomorrow and report back when I have some results. BR, Kristian
