Finally, a processor manufacturer defects from the obfuscatory equilibrium. Granted, Apple’s processor people are not saints—I’ve yet to see even a full table of throughputs, latencies, and port loads from them, let alone an accurate CPU model—but I welcome anything that might maybe, hopefully, pretty please start a race of giving more accurate data to people doing low-level optimization.
Intel Processor Trace was already pretty great. Built a MC-DC coverage tool with it. Used it for fine profiling, live program monitoring...
> The io-uring crate doesn’t help much with this. The API doesn’t allow the borrow checker to protect you at compile time, and I don’t see it doing any runtime checks either.
I've seen comments like this before[1], and I get the impression that building a a safe async Rust library around io_uring is actually quite difficult. Which is sort of a bummer.
IIRC Alice from the tokio team also suggested there hasn't been much interest in pushing through these difficulties more recently, as the current performance is "good enough".
[1] https://boats.gitlab.io/blog/post/io-uring/