Originally posted by Tobu
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How Intel's Clear Linux Team Cut The Kernel Boot Time From 3 Seconds To 300 ms
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Originally posted by tildearrow View Post
The problem is that by doing this they'll be dropping compatibility with e.g. BIOS. Yes, BIOS still requires 16-bit mode at the beginning and I'm pretty sure even UEFI does too (but initializes a 64-bit environment fairly quickly).
And once we're here, it can be good idea to take opportunity to learn from past mistakes. Something that wintel never managed to do, ending up plagued with overgrown booog3d crap firmwares that nobody going to fix, ever. Only barely tested with certain version of windows - and total disaster everywhere else. To extent some laptops would brick on OS reinstall, screwing NVM area the way firmware goes nuts and can't boot anymore. UEFI is almost OS on its own - intrusive, proprietary and vendors only caring of windows (or to be exact, certain version of it they preinstall).
If someone doubts: read dmesg on most of x86 hardware. Be it BIOS or UEFI, ACPI or so, it usually goes with ton of bugs, non-standard quirks and so on. This inevitably warrants shitty experience if you not excited about very certain win version. In best case bugs wouldn't be annoying. In worst, they would bite. And nobody would ever fix that. Esp for Linux.
That's where Intel can go fsck self with all their boot times together. Their major problem is insane system complexity and inclination on proprietary crap, backdoor-like features (ME, Bootguard, SMM, etc) and so on. At which point using Intel where 0.3 second boot time makes sense (control, automation, devices, ...) inevitably ends being perilous task. And if all these concerns addressed, it makes hell a lot of sense also grab modern cpu core design without tons of legacy and do very same for "chip set" (even if it integrated to same IC) and so on. This simplifies system design a lot and makes it far more robust and bug-free.
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Originally posted by R41N3R View PostIntel should maybe look at UEFI first, that beast wastes 30 seconds on my normal desktop systems! Even if my kernel would need 5 seconds to boot instead of 3, I wouldn't even notice this difference!
Upon investigation, fstrim does not like to work against active mounted drives (eg / ). I did do a cleanup and removed 4 months of free'd blocks. (4 gigs)
The 1 TB nvme has 600 gigs free before and after. The nvme is a triple level bit store.
For the Windows fanboy, MS is moving more of it's stuff to Linux and while the user interface will remain more or less unchanged, under the covers, the compiler and host will eventually be Linux.
MS has to fear ClearLinux. Intel is there to protect it's hardware sales. Foundries are offering to build tailored cpus that will do away with the need for some software vendors to useINTEL/AMD/other
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