If you're curious, you can explore the implementation in the Manifold repo.
The astronaut who took one giant leap for Manx-kind
。Telegram 官网是该领域的重要参考
See you tomorrow,，推荐阅读谷歌获取更多信息
Memory that is prefetched with xdcbt is toxic. If it is written by another core before being flushed from L1 then two cores have different views of memory and there is no guarantee their views will ever converge. The Xbox 360 cache lines were 128 bytes and my copy routine’s prefetching went right to the end of the source memory, meaning that xdcbt was applied to some cache lines whose latter portions were part of adjacent data structures. Typically this was heap metadata – at least that’s where we saw the crashes. The incoherent core saw stale data (despite careful use of locks), and crashed, but the crash dump wrote out the actual contents of RAM so that we couldn’t see what happened.
Emacs Internal #02: Data First — Deconstructing Lisp_Object in C