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   ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 05:37:35 JST ✧✦Catherine✦✧

   so, i ported #GlasgowInterfaceExplorer to webusb

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     John Kapri (johnkapri@mastodon.social)'s status on Friday, 18-Jul-2025 05:45:43 JST John Kapri

     in reply to

     @whitequark That's cool as heck?? I'd really want one, but I don't have an immediate need for it and I definitely don't have the money right now, but it is on my wishlist! You're building such a cool project...

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 05:45:47 JST ✧✦Catherine✦✧

     in reply to

     this is the culmination of my effort to cross-compile literally every fpga-related tool to webusb, i think

     the code isn't... great, mostly because a bunch of things i never intended to be async had to become async. so i'll have to refactor it first

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 05:46:22 JST ✧✦Catherine✦✧

     in reply to

     • John Kapri

     @johnkapri thanks ^^

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 06:08:51 JST ✧✦Catherine✦✧

     in reply to

     i get about 60% of the native performance in a simple benchmark

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 07:25:24 JST ✧✦Catherine✦✧

     in reply to

     • equinox

     @equinox yeah

     i have no idea why it's slow. maybe chromium doesn't queue enough in-flight requests or something. it's hard to debug this stuff

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     equinox (equinox@chaos.social)'s status on Friday, 18-Jul-2025 07:25:25 JST equinox

     in reply to

     @whitequark for the USB bits specifically? I would've hoped USB were the bottleneck there, is it just increased request-response-repeat time/latency?

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 07:30:43 JST ✧✦Catherine✦✧

     in reply to

     • equinox

     @equinox yes but what i mean more specifically here is that everything is wrapped in a layer of webkit. which i don't appreciate

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     equinox (equinox@chaos.social)'s status on Friday, 18-Jul-2025 07:30:45 JST equinox

     in reply to

     @whitequark +9000 on "hard to debug this stuff", I've got a bunch of painful memories debugging around the URB layer & particularly when exactly what happens and why 😬

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 07:34:42 JST ✧✦Catherine✦✧

     in reply to

     • equinox

     @equinox it's basically libusb with a few things renamed, but the problem is that... ok, consider this

     if my native application breaks while doing syscalls, i run strace
     if it's slow i run perf

     now image running that on a browser tab.

   • Embed this notice
     equinox (equinox@chaos.social)'s status on Friday, 18-Jul-2025 07:34:43 JST equinox

     in reply to

     @whitequark ah. Huh. I would've expected *that* interface to not be all that different from what libusb does. Never looked at it, Firefox user 😅

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 07:37:28 JST ✧✦Catherine✦✧

     in reply to

     • equinox

     @equinox thanks ^^

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     equinox (equinox@chaos.social)'s status on Friday, 18-Jul-2025 07:37:29 JST equinox

     in reply to

     @whitequark right. Ugh. I've used JS level perf tools before, but no clue about somehow getting useful perf (or trace) out of wasm…

     Anyway I shall stop wasting your time, happy hacking & appreciate a whole bunch of your stuff! 😊

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 09:55:06 JST ✧✦Catherine✦✧

     in reply to

     here's the pull request with webusb bits that i cleaned up so that they're not awful https://github.com/GlasgowEmbedded/glasgow/pull/958

     there are also toolchain bits. the toolchain bits are awful. i am too ashamed to post them

   • Embed this notice
     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 09:55:25 JST ✧✦Catherine✦✧

     in reply to

     • J. "Henry" Waugh

     @jhwgh1968 also the latency is 10x worse lol

     400us->4000us

     dunno why

   • Embed this notice
     J. "Henry" Waugh (jhwgh1968@chaos.social)'s status on Friday, 18-Jul-2025 09:55:27 JST J. "Henry" Waugh

     in reply to

     @whitequark for completely untuned/unoptimized? That is totally solid in my book

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Friday, 18-Jul-2025 11:47:14 JST ✧✦Catherine✦✧

     in reply to

     how cool is this?

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     dram🎀 (dramforever@mastodon.social)'s status on Friday, 18-Jul-2025 12:37:09 JST dram🎀

     in reply to

     @whitequark does this mean i can comfortably-ish use glasgow on my phone :3

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Saturday, 19-Jul-2025 00:56:16 JST ✧✦Catherine✦✧

     in reply to

     • dram🎀

     @dramforever not quite yet

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     ✧✦Catherine✦✧ (whitequark@mastodon.social)'s status on Sunday, 20-Jul-2025 04:13:45 JST ✧✦Catherine✦✧

     in reply to

     • dram🎀
     • twosky2000

     @twosky2000 @dramforever if it's chrome or edge yes

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     twosky2000 (twosky2000@mastodon.social)'s status on Sunday, 20-Jul-2025 04:13:47 JST twosky2000

     in reply to

     • dram🎀

     @dramforever @whitequark does the phone support WebUSB by the default browser?
     I just go in to apocalypse theory tinkering, likely it will be fine(🔥).