From Newsgroup: comp.misc
This article <
https://www.tomshardware.com/software/linux/facebook-deploys-the-steam-decks-linux-scheduler-across-its-data-centers-valves-low-latency-scheduler-perfect-for-managing-metas-workloads-at-massive-data-centers>
is an interesting example of the synergy you get from an OS that is as
widely deployed as Linux is. It is to be found in such widely
disparate areas as handheld gaming and megacorp data centres like the
ones run by Facebook.
What on Earth would the two have in common, you may ask? Well, it
turns out that a scheduling algorithm created by Valve to improve
gaming response on its Steam Deck handheld is also useful for
improving response times in those Facebook data centres.
Of course, the Facebook engineers had to wrestle with the problems of
scaling up the code to handle massive numbers of CPU cores. How did
this impact on the original code developed for the Steam Deck?
The engineers also addressed the obvious concern: does optimizing
a scheduler for Meta's servers risk harming its original gaming
use case? So far, they say, the changes are either neutral or
beneficial for the Steam Deck, and features that don't apply can
simply be disabled with kernel flags. Still, they admitted that
the experiment is ongoing.
Truly a remarkable experiment in scalability.
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