Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH 0/9] Per-cgroup /proc/stat | Date | Wed, 14 Sep 2011 13:23:14 -0700 |
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Peter Zijlstra <a.p.zijlstra@chello.nl> writes: > > Guys we should seriously trim back a lot of that code, not grow ever > more and more. The sad fact is that if you build a kernel with > cpu-cgroup support the context switch cost is more than double that of a > kernel without, and then you haven't even started creating cgroups yet.
That sounds indeed quite bad. Is it known why it is so costly?
-Andi -- ak@linux.intel.com -- Speaking for myself only
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