Re:AWS switch from gzip to zstd – about 30% reduction in com...
by treffer on Sunday August 21, 2022 @07:47AM
(#32539246)
Having a big CPU (which you need to get many PCIe lanes) and then not using it is waste.
It would be waste to _not_ use the CPU time.
Granted, the CPU powet consumption would drop with enabled power management, but that's only marginal gains as the CPU is likely busy anyway and the total duration of busy time might drop (race to sleep)
I have used this inverted logic to great extends. E.g. when expanding data center capacity I was usually swapping old harware for new hardware once it arrived. It is way better to have the older generations as spares and use the new capacity at the most utilized places.
It would be waste to _not_ use the CPU time.
Granted, the CPU powet consumption would drop with enabled power management, but that's only marginal gains as the CPU is likely busy anyway and the total duration of busy time might drop (race to sleep)
I have used this inverted logic to great extends. E.g. when expanding data center capacity I was usually swapping old harware for new hardware once it arrived. It is way better to have the older generations as spares and use the new capacity at the most utilized places.
Do not waste the things you pay for!