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Linux now has Real Time Kernel Support. After 20 years of development!
1130 sats \ 3 comments \ @zuspotirko 21 Sep tech
After 20 years of development PREEMPT_RT has been merged and will go live with version 6.12
This means Linux now supports execution programs that cannot be interrupted with kernel hw interrupt. The kernel can stop almost any task at any point to execute such an important task at any time. This is critical for many programs. Think of the brakes of a car or a medical device.
Normally such functionality requires hardware support and software that is almost like an entire separate os called "real-time OS".
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=baeb9a7d8b60b021d907127509c44507539c15e5
https://wiki.linuxfoundation.org/realtime/documentation/start
Here are pics from the celepration of the merge:
https://social.kernel.org/notice/AmBb9tDqmw7QG6B7Bo
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0 sats \ 2 replies \ @hodlme 21 Sep
I agree this is huge for certain applications! CNC machines, 3D printers and many motion appliations can benefit here. It's been painful in the past to build an up to date kernel with RT support and I can't wait to see where this goes.
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0 sats \ 1 reply \ @zuspotirko OP 21 Sep
CNC machines and 3d printers? Really? Why?
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0 sats \ 0 replies \ @bitalion 21 Sep
These are devices that, if the system that controls them is interrupted, interrupt their operation. On an industrial scale, this would be disastrous. However, using an RT kernel, the process would not be affected, at least not the one that is in progress.
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