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Revisiting Linux kernel's preemption models
- guiambros 3y agoPart 2 here: https://lwn.net/SubscriberLink/945422/23955cf6d31a11b7/ https://lwn.net/SubscriberLink/945422/23955cf6d31a11b7/
- rbanffy 3y agoClearing memory is an interesting problem that comes up a lot and, in some architectures, what's written is an encrypted series of zeroes. I wonder if memory controllers (at some level between the CPU down to the DRAM chips) wouldn't be able to implement a memory clearing function that could side-step the bus. Even on machines with 16 memory channels, clearing a terabyte takes a long while.