Editing User:Jukeboksi/Blog/2018 (section)

=== 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, 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)