It is an accepted fact that memcg sucks. But can it suck faster?
— Glauber Costa
This was motivated by a bug report last February complaining about
200-microsecond latency spikes from RCU grace-period
initialization. On systems with 4096 CPUs.
Real-time response. It is far bigger than I thought.
— Paul McKenney
I only mentioned it to see if your virtual crap detector is still
working. Looks like it's still in top condition, low latency and
100% hit rate.
— Avi Kivity
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