241–250 of 281 posts
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Did you look at the raptor dashboards? Let me help you: https://treeherder.mozilla.org/perf.html#/graphs?timerange=2...
Thank you! But without being able to compare it with chromium the results are meaningless to my brain.
What's a good way to diagnose optimzation/deoptimization performance issues? The Z80 emulator I use for http://8bitworkshop.com/ has some long pauses while it's spinning up. It uses a huge generated switch statement, which I'd assume is hard to optimize if type info isn't complete. (I'm replacing it with a simpler emulator which works much better though)
I found the emulator ran 4x faster on firefox than on chrome. The culprit was the main dispatch loop, a 256-entry switch statement. Chrome used a slow fall-back path because there were too many cases. The fix was to have "if (opcode I also tried generating 256 functions and then dispatch to the right sub based on an array of function pointers, but it wasn't any faster than the switch statement.
But that was five year ago, and I'm sure the landscape is different now.
The Mozilla tech blogs are always a good read. Informative and easy to digest. I can only think of one other company blogging with similar consistency/quality: Cloudflare. Firefox performance has seen tremendous gains since their Project Quantum efforts. It mostly feels on par with Chrome for me pretty much everywhere. There is one glaring omission though: a single company where I have problems with FF on multiple ap…
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I have the opposite experience with YouTube. With an AMD GPU on Linux, Chrome churns, drops frames, and stutters horribly on even 1080p videos at 30fps. Firefox, meanwhile, handles 1440p60 video with no problem. Even two such videos simultaneously, on separate monitors. Chrome became inexplicably better for parts of early 2019 (I did not note which versions), but starting 2 or 3 months ago Chrome returned to being un…
Hey, I'm on the chromium videostack team, would you mind filing a bug report for what you see happening with youtube? https://bugs.chromium.org/p/chromium/issues/entry
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The big difference is that those executives would be getting money out of those 20% customer base. I seriously doubt that those 20% Firefox users even consider doing a $1 donation.
Firefox makes money from the install base via the search engine default setting. Fairly sure more so than donations
After all plenty also switch to other search engines.
The Mozilla tech blogs are always a good read. Informative and easy to digest. I can only think of one other company blogging with similar consistency/quality: Cloudflare. Firefox performance has seen tremendous gains since their Project Quantum efforts. It mostly feels on par with Chrome for me pretty much everywhere. There is one glaring omission though: a single company where I have problems with FF on multiple ap…
Yea YouTube performance is nuts! It seems to be exacerbated when playing in full screen or @2x speed as well. Google has been getting better though with supporting FF. They now support Hangouts on FF and Gmail is actually faster for me in FF than it is in Chrome.
A mute point however now with EdgeChrome.
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To be fair i think this is an exercize in vanity and why not say it, stupidity. Javascript VM´s these days are fairly complex beasts with huge amount of man-hour and expertise. Also technically this would be a inferior solution as compared to what V8 did with its interpreter in Turbofan (and SpiderMonkey are doing now as presented in the article), by generating pure assembly through the turbofan backend (the same tec…
> Javascript VM´s these days are fairly complex beasts with huge amount of man-hour and expertise. You know what else is a MASSIVE time and money sink? C/C++. Combining 2 big and nasty complex stuff you get something even bigger. ---- I don't say to blind rewrite. Is know to be: > an exercize in vanity and why not say it, stupidity. But this must take in account TIME. Right now , is not the time for a rewrite, but is…
Theres no gain in clear performance, unless theres a better algorithm being implemented, no clear gain in productivity, as C++ and Rust are both equaly complex beasts, and with not much gain in security, if you already implemented in "modern c++" and are using smart pointers, including in API´s and moves correctly.
The other gains in security/safety that you might have with Rust, are maybe lost if you think that the C++ codebase have been used and tested in every possible scenario, so a lot of bugs are corrected, and if you think that given this is a Jit VM you will have to use Rust´s unsafe{} in a lot of places, i still think, giving the context, that is not a smart thing to do, and it will be more like a trophy to Rust, but without a more pragmatic and realistic approach to the matter, not focusing properly on results.
Not much gain, you will end with a worse and more buggy JIT in the end, and will have to spend more years, only to get parity to the VM you already had in the first place.
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I wanted to keep using FF despite being a gmail user so much so that I switched to Thunderbird for my emails. I guess Mozilla wins this way.
I did the same and then ditched gmail for payed email service + my domain. Thumderbird is underrated.
Back home, Thunderbird, and the occasional donations.
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I solve this by using Firefox for all web browsing, and Chrome for gmail/gapps/anything by google. It sucks that we have to do that, but I can't entirely blame them for making their own products work better on their own browser.
> It sucks that we have to do that, but I can't entirely blame them for making their own products work better on their own browser. You mean like MS for a long time did with MSIE? Are we really back in the 90s, back to “This page works best in $one_specific_browser”? This is not the future I was hoping for... On the flip side I can use Linux for almost anything, so i guess it’s not all bad.
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> It sucks that we have to do that, but I can't entirely blame them for making their own products work better on their own browser. You mean like MS for a long time did with MSIE? Are we really back in the 90s, back to “This page works best in $one_specific_browser”? This is not the future I was hoping for... On the flip side I can use Linux for almost anything, so i guess it’s not all bad.
Well .. consider you are back in the 90s ... would you think in general, that this is "the future you was hoping for..."?