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Linux Kernel 6.12 Has Landed – And It's a Big One
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this post was submitted on 19 Nov 2024
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@CameronDev @thingsiplay As I previously stated, a normal preemptive kernel will generally provide <1ms latency. RT does provide the possibility of lower latency and not inconsistent as you suggest unless you are resource saturated.
When I last looked into it, many years ago, RT definitely did negatively impact average latency. It was slower, but consistent. Has that actually changed?
@CameronDev I never applied the real time patch before it was integrated in 6.12, so I have no previous experience to compare to. And with 6.12, I can only go by documentation at present because the realtime configuration breaks my graphics so I have no display. But I have worked in audio studios in the past where they used it and claimed it helped. I can only take their word, but I did mention the tradeoffs earlier, if you do more context switching it is going to eat more resources, so if you are resource saturated it's going to slow you down instead of speed you up. I am anxious for the driver issue to be resolved so I can try for myself on my hardware. I am particularly curious to see how my i9-10980xe (18 core / 36 thread) machine will respond to it. That is the machine this friendica runs on so I really need to know it's going to be stable before I even try it, but that machine does have nvidia rather than UHD630 graphics so may work.