Comment by 0x457
4 months ago
Yes, without repr(C) order and padding isn't guaranteed. You would use https://docs.rs/crossbeam-utils/latest/crossbeam_utils/struc... or similar to force fields not being on the same cache line.
4 months ago
Yes, without repr(C) order and padding isn't guaranteed. You would use https://docs.rs/crossbeam-utils/latest/crossbeam_utils/struc... or similar to force fields not being on the same cache line.
huh TIL
"On modern Intel architectures, spatial prefetcher is pulling pairs of 64-byte cache lines at a time, so we pessimistically assume that cache lines are 128 bytes long."
That was true in like, 2011. I'm not sure if it's true anymore.
Pretty sure it started being a thing at Sandy Bridge and never stopped?
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