- cross-posted to:
- pcgaming@lemmy.ca
- hackernews@derp.foo
- cross-posted to:
- pcgaming@lemmy.ca
- hackernews@derp.foo
tl;dr large gaming performance over stock CPU scheduler when there is a heavy CPU task running in background
Obviously, they only tested one game and it may not apply everywhere or hurt performance/latency in some cases.
One thing I wasn’t aware of is that sched-ext/ePBF supports changing CPU schedulers on-the-fly, which takes away one of the downsides of third-party schedulers. I.e. you can use the stock scheduler most of the time, but then switch to a third party scheduler for specific workloads. So less of a downside risk.
Finally, none of this is merged yet (including sched-ext) so it’s out of reach if you are just using the stock kernel.
deleted by creator
sched-ext is the proof of concept. It has a demo video if you follow the link to the mailing list in the article showing it improving performance in games that are normally CPU bottlenecked when the CPU is given a heavy background task.
It’s scheduler improvements though, so it’s not really a measurable improvement (or at least not easily measurable) to performance as a whole but it can result is a more responsive system under load.