Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

In practicality intel CPUs have pulled down 128 bytes at a minimum when you access memory for a very long time.

64 byte cache lines are there an part of other alignment boundaries for things like atomics, but accessing memory pull down two cache lines at time.



Memory fetch length and coherency unit size are different things, and the latter matters much more.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: