بتاريخ الجمعة، 27 مارس، 2020 4:22:33 م UTC+2، كتب Deepti Gandluri: > Contact emails > [email protected], [email protected], [email protected] > > > Spec > Overview document: > https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md > Proposal directory: > https://github.com/WebAssembly/simd/tree/master/proposals/simd > Tag review: https://github.com/w3ctag/design-reviews/issues/487 > > > Summary > The WebAssembly SIMD proposal defines a portable, performant subset of SIMD > operations that map to vector instructions that are available across most > modern hardware platforms. > > > This is purely a WebAssembly performance feature that adds WebAssembly > operations and does not affect web API behavior, but is still useful for > developers to be aware of as it can change performance characteristics of > applications using WebAssembly. > > > Link to “Intent to Prototype” blink-dev discussion: > This links to the Intent to Implement discussion for Simd.js, which was the > basis for the WebAssembly SIMD. The Spec section above has updated links for > WebAssembly SIMD, as well as the Tag review. > > > Goals for experimentation > Performance: > The goal for this experiment is to determine the performance benefit of > having WebAssembly SIMD enabled applications in production code, and > determine real world performance numbers. We currently have data from > isolated benchmarks, and demos, but these do not always reflect real world > usage. > > > API Shape: > The SIMD proposal currently consists of a set of operations that are well > supported across most modern hardware platforms. The set of instructions > available on hardware is large and varied, and we are looking for feedback on > whether this portable subset is sufficient for a cross section of > applications. > > > Experimental timeline > M84-M89 > > > Any risks when the experiment finishes? > The risk is a drop in performance for sites that were enhancing performance > using WebAssembly SIMD operations. > > > Ongoing technical constraints > None. > > > Debuggability > WebAssembly SIMD needs debugging support in devtools for 128-bit values, as > well as baseline compiler support in V8. Both of these efforts are ongoing. > (Tracking bugs: crbug.com/v8/10347, crbug.com/v8/9909) > > > Will this feature be supported on all five Blink platforms supported by > Origin Trials (Windows, Mac, Linux, Chrome OS, and Android)? > Yes. > > > Link to entry on the feature dashboard > > https://www.chromestatus.com/feature/6533147810332672
-- -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-dev/8368fc27-76ba-4f47-a8cb-92af8df9a9e9%40chromium.org.
