Re:Pessimism about parallelism
by zozbot123 on Wednesday December 26, 2018 @09:50AM
(#18762383)
100% CPU on an octacore? See, ESR was right, it's bottlenecked by serial performance. Now 800% CPU utilization would be impressive!
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A multicore CPU is comprised of several cores. I don't think fully utilizing all cores means "800% CPU utilization"
Oddly enough the load average, as reported by uptime and xload, uses just this metric: a machine with one CPU pegged has a load of 1.0. A fully utilized octa-core machine has a load of 8.0.