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From: "Jared Hulbert" <jaredeh@gmail.com>
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Subject: Re: solid state drive access and context switching
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> Probably about 1000 clocks but its always going to depend upon the
> workload and whether any other work can be done usefully.

Yeah.  Sounds right, in the microsecond range.  Be interesting to see data.

Anybody have ideas on what kind of experiments could confirm this
estimate is right?