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User:Jukeboksi/Blog/2018: Difference between revisions
→Tuesday 2018-10-23: UPDATE: tested another computer and its power consumption grew from 17W (fully idle) to 52W (fully stressed CPU) so that is a sizable +206% increase
(Today I did a small test to find out how much CPU load affects the power consumption of a laptop.... the result of this test is that my laptop uses +35% more energy when the CPU cores are under a full workload, compared to the computer mostly idling.) |
(→Tuesday 2018-10-23: UPDATE: tested another computer and its power consumption grew from 17W (fully idle) to 52W (fully stressed CPU) so that is a sizable +206% increase) |
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=== Tuesday 2018-10-23 === | === Tuesday 2018-10-23 === | ||
* Today I did a small test to find out how much CPU load affects the power consumption of a laptop. I did this because I have recently resumed contributing my computational resources to the [[w:Berkeley Open Infrastructure for Network Computing]] or BOINC for short and am considering whether to add running BOINC to the things suggested to consumers who stumble upon the development wiki [[Main Page]]. When | * Today I did a small test to find out how much CPU load affects the power consumption of a laptop. I did this because I have recently resumed contributing my computational resources to the [[w:Berkeley Open Infrastructure for Network Computing]] or BOINC for short and am considering whether to add running BOINC to the things suggested to consumers who stumble upon the development wiki [[Main Page]]. | ||
:When, a Lenovo ThinkPad X230, was being '''mostly idle''' at 20-30% CPU utilization it consumed on average '''30W''' or slightly under and when I put all cores into full labour with the [[w:hardware stress test]] program for Linux aptly named just 'stress' with the parameter '--cpu 4' (the CPU has 4 cores), which causes CPU utilization going to 100%. '''Under full workload''' on the CPU cores the computer used an average of '''40W''' so '''cranking all CPU cores to the max''' causes an approximate '''+35% electricity consumption'''. | |||
:Also tested an another computer, a Dell Inpiron E6220 that had a very low power consumption of around '''17W''' when idle with 10% of CPU in use and the stressing of the CPU to the max caused a much bigger rise in its electricity consumption: It went to '''52W''' so that is a rise of '''+206% electricity consumption''' or '''+35W''' in terms of absolute consumption. | |||
:It is hard to draw a conclusion from a sample of only 2 computers, but it is clear that CPU utilization does play a major role in how much power the computer consumes. [[User:Jukeboksi|Jukeboksi]] ([[User talk:Jukeboksi|talk]]) 13:41, 23 October 2018 (UTC) | |||
=== Monday 2018-10-15 === | === Monday 2018-10-15 === | ||