tiotest, --numruns

[Christian Robottom Reis]

I've seen a lot of variation on various runs of tiotest using the same
setup - even in single-user mode. Is this expected, and do you know why it
happens? Is it just the effect of the buffer cache, or do we avoid using
it?

What's a decent --numruns to use, taking into evidence such
variation? I've noticed if I use more than one I get worse numbers in
general - this is ok?

Cheers,
--
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