On Mon, Apr 09, 2018 at 01:09:27AM +0100, Ken Moffat wrote:
> On Mon, Apr 09, 2018 at 12:39:46AM +0100, Ken Moffat wrote:
> > This is the first of a pair of posts which probably show how out of
> > my depth I am ;)
> > 
> > While watching rust build/test, I've been running top.  My past
> > experience suggests that a process will normally max out at 100%
> > (i.e. all of _one_ core), but with rust I'm seeing percentages of
> > 250-300%.  Is that normal ?
> 
> In fact the latter part of the tests hit 400% (all of all cores) for
> one rust job a few minutes before it crashed.
> 
> I can recall occasionally seeing figures like 102% on "normal" jobs,
> but I had assumed those were rounding errors.
> 
Please forget the question, I've just started running mprime for a
stress test and that too is hitting 400% (deliberately using all 4
cores) so it isn't only rust that can do this.  I still don't recall
ever noticing this sort of CPU % before, but it clearly isn't a
rust-specific feature.

ĸen
-- 
In my seventh decade astride this planet, and as my own cells degrade,
there are some things I cannot do now: skydiving, marathon running,
calculus. I couldn't do them in my 20s either, so no big loss.
            -- Derek Smalls, formerly of Spinal Tap
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