[Bloat] Hardware upticks

[Steinar H. Gunderson]

On Tue, Jan 05, 2016 at 04:06:03PM -0800, Stephen Hemminger wrote:
> The expensive part is often having to save and restore all the state in
> registers and other bits on context switch.

Are you sure? There's not really all that much state to save, and all I've
been taught before says the opposite.

Also, I've never ever seen the actual context switch turn up high in a perf
profile.  Is this because of some sampling artifact?

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