jandem

7 ms·

31.
by jandem 8y ago
> Function calls from WASM to JS don't seem to have improved so much. Yeah, Wasm => JS calls used to be reasonably fast because we had optimized that before. The work described here made that path much nicer, though (a more unifi
32.
by jandem 9y ago
I get a certificate error on Firefox Nightly. This is likely caused by https://wiki.mozilla.org/CA/Upcoming_Distrust_Actions
33.
by jandem 9y ago
> The author is able to achieve a speed-up of ~4x which is close to the 5.89x achieved by the Rust implementation. This is not a fair comparison because the author made algorithmic improvements that would also improve the wasm version if
34.
by jandem 9y ago
I work on SpiderMonkey JS performance (and got mentioned in the article for fixing a perf bug!) and this is exactly the point I wanted to make. If you're not a VM engineer, it's much harder to write fast JS. Wasm also gives you mu
35.
by jandem 9y ago
The JS version is slow in Firefox because of a silly perf cliff, I filed a bug [0]. A quick fix for that improves the JS version from ~400 ms to ~180 ms for me locally. ~140 ms if I disable the Nightly-only GC poisoning. edit: the JS code i
36.
by jandem 9y ago
Thanks. Removing these hooks would have been a lot more complicated 6 years ago: I'm pretty sure the new WebIDL DOM bindings got rid of many of them over the years. I also replaced some of the Class hooks with proxies, did proxies even
37.
Some SpiderMonkey Optimizations in Firefox Quantum(jandemooij.nl)
212 points by jandem 9y ago|5 comments
38.
Stylo now the default configuration for mozilla-central(groups.google.com)
1 points by jandem 9y ago|0 comments
39.
Rust required to build Gecko(groups.google.com)
67 points by jandem 10y ago|61 comments
40.
CacheIR: A New Approach to Inline Caching in Firefox(jandemooij.nl)
2 points by jandem 10y ago|0 comments
41.
CacheIR: A New Approach to Inline Caching in Firefox(jandemooij.nl)
4 points by jandem 10y ago|0 comments
42.
by jandem 10y ago
> Now I'm really interested in the SpiderMonkey/V8 thing. I think SpiderMonkey is 60x faster than V8 there because of an optimization we have to avoid quadratic behavior while flattening ropes, it's described here: http:&
43.
GStreamer Elements in Rust: Parsing data from untrusted sources like it’s 2016(coaxion.net)
2 points by jandem 10y ago|0 comments
44.
WebAssembly: A New Compiler Target for the Web [video](youtube.com)
62 points by jandem 10y ago|13 comments
45.
W^X JIT-code enabled in Firefox(jandemooij.nl)
7 points by jandem 11y ago|0 comments
46.
by jandem 11y ago
The next Firefox Nightly build should get 84% on that page, much closer to Edge than Firefox 44 (74%). I work on SpiderMonkey and I'm super excited about this news. All JS engines have added more-or-less similar performance optimizatio
47.
Testing Math.random(): Crushing the browser(jandemooij.nl)
36 points by jandem 11y ago|2 comments
48.
Math.random() and 32-bit precision(jandemooij.nl)
32 points by jandem 11y ago|1 comments