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brendangregg
on May 9, 2017
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CPU Utilization is Wrong
Screenshot? My version of htop does not show stalls. The only top I've seen that uses PMCs is tiptop.
htop should add PMC support, and a lot more things too. I might even start using it then. :)
qb45
on May 9, 2017
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It's steal, not stall - time "stolen" by the hypervisor, i.e. when you have runnable threads but the CPU is busy servicing other VMs. This can lead to stalling of your software, I guess, but it has nothing to do with instruction stalls.
aarmenaa
on May 9, 2017
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htop, at least in the version I'm using, only shows steal if it's non-zero.
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htop should add PMC support, and a lot more things too. I might even start using it then. :)