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#osdev2 = #osdev @ Libera from 23may2021 to present
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16:10:00 <geist> interesting, DDR5 has a local-write style command
16:10:00 <geist> ie, 'fill these lines with <pattern>'
16:11:00 <geist> was just reading about it because Alder Lake supports DDR5
16:17:00 <mxshift> curious if it actually helps with ECC DRAM init and bzero(). People have claimed those are purely bandwidth limited for over 2 decades. Time to see if it's true _and_ using specialized HW primitives is something OS developers are willing to do.
16:23:00 <geist> yeah
16:23:00 <geist> according to wikipedia it doesn't actually complete any faster but doesn't involve sending bits across the wire, so from a power point of view its a win
16:27:00 <mxshift> right, you're not sending a stream of literal zeros
16:56:00 <zid> and even if it's not faster now, it might end up faster