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This isn't that. This is about lowering your server power consumption per annum by 0.3% while lowering the performance of the programs running on that server by
by rndgermandude 5y ago
This isn't that. This is about lowering your server power consumption per annum by 0.3% while lowering the performance of the programs running on that server by anywhere between 0% - 30%. If it is 0% then YAY, if it is a 30% decrease then probably not-so-YAY.
When it comes to cars, the result would be some people would trade longer travel times for lower carbon emissions (while a lot of people do not regularly travel at high speeds on the autobahn anyway if ever). Another question is how indirect factors play out, e.g. will this lead to cars lasting longer because lower speeds will put less strain on engines and other components, or last less long because cars will be operated for longer periods of time per trip. Or e.g. lower speeds would also put less strain on the street requiring less maintenance and repairs.
My point, I guess, is that it isn't as simple as it sounds at first.
- jeffbee 5y agoThat doesn't quite work as an analogy. Reducing speed limits leaves the peak throughput of the road the same: a car arrives every 2 seconds. The only thing it changes is the latency, or the amount of time an individual vehicle needs to travel a given distance.
- rndgermandude 5y agoThe individual car (the individual program) will take longer to complete a task.
- sokoloff 5y agoThe humans driving the cars experience the latency. I literally don't care how many other cars drove on the same road in the same hour; I care how long my trip takes.
- Symbiote 5y agoYou should also care about your chance of a serious accident. Germany's motorway accident rate doesn't compare favourably with e.g. the UK or France, although it's a difficult comparison to make.
- sokoloff 5y agoOh I do. Having driven in Germany for 6 months (and on periodic business trips) and the US for 30+ years, Germany is a dream from risk of accident, serious accident, and fatality risk compared to the US.
- rndgermandude 5y agoThis got me curious. I cannot really find reliable numbers only concerning motorway accidents, at least not this quickly, but when it comes to total road fatalities, it appears Germany is doing worse than the UK but a lot better than France: https://i.imgur.com/ZPHb8cz.png https://i.imgur.com/ZPHb8cz.png [1] PS: the US had in 2019 about 110 road fatalities per million [2], the UK had about 26 [1], France 48 [3] and Germany 37 [4]. [1] From page 22 of https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/922717/reported-road-casualties-annual-report-2019.pdf https://assets.publishing.service.gov.uk/government/uploads/... [2] http://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813021 http://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/8... [3] https://www.connexionfrance.com/French-news/Road-deaths-in-mainland-France-up-almost-10-in-January-after-historically-low-2019-figures-show https://www.connexionfrance.com/French-news/Road-deaths-in-m... [4] https://www.destatis.de/EN/Themes/Society-Environment/Traffic-Accidents/Tables/persons-killed-age.html;jsessionid=BCD8FCE6D42C3AB1BE5C5D7FA5A246DF.live711 https://www.destatis.de/EN/Themes/Society-Environment/Traffi...
- Symbiote 5y agoThe purpose is to reduce the chance of the server room flooding (gradually or catastrophically) by some fraction. As a side benefit, it also reduces the chance of a server catching fire by about half.
- dataflow 5y agoTo clarify, I was just trying to address the question of whether the magnitude is large, not the question of how to weigh the various trade-offs.