bfrog

If only the entire compute infrastructure of the planet could solve fusion power perhaps it'd come full circle.

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It's neat this is a thing I guess, but I agree it looks fairly clumsy compared to the Rust answer.

Move to a country that lives outside and isn't car dependent.

Install Linux, never look at microspyware again.

C++ you either use templates or classes and virtuals. In either case the caller doesn't get to decide.

This is good to see! Ultimately a FOSS project lives or dies on contributors and contributions from them. Seeing this grow is a sign of health and for servo this is great to see!

One example where Rust enables better and faster abstractions is traits. C you can do this with some ugly methods like macros and such but in Rust it’s not the implementers choice it’s the callers choice whether to use dynamic dispatch (function pointer table in C) or static dispatch (direct function calls!)

In c the caller isn’t choosing typically. The author of some library or api decides this for you.

This turns out to be fairly significant in something like an embedded context where function pointers kill icache and rob cycles jumping through hoops. Say you want to bit bang a bus protocol using GPIO, in C with function pointers this adds maybe non trivial overhead and your abstraction is no longer (never was) free. Traits let the caller decide to monomorphize that code and get effectively register reads and writes inlined while still having an abstract interface to GPIO. This is excellent!

How would time slicing work?

It has literally split the ecosystem I’m not sure why people think it hasn’t. There’s basically embassy then everything else. Embassy has been quite successful in large part because its primary author took the time to make it good.

If you look at espressif and how they support rust they have to offer both blocking and non blocking options, they also offer using rust on their freertos and C library setup. It’s quite an undertaking to do all of this.

Show me how time slicing or deadline scheduling would work with multiple priorities (InterruptExecutor's) involved. Show me how a task in an InterruptExecutor would priority boost a task of a lower priority, switch to it, then switch back to free up a locked resource. I don't see how these things are feasible in Embassy.

There's a large number of things that the cooperative scheduler can't do. Maybe you don't need those things, that's fine! Embassy really is quite nice for cooperative task scheduling. But to benchmark a context swapping RTOS which can and pays the cost for doing so, against a cooperative task queue scheduler... these are not at all the same things, and won't have the same performance characteristics in simple scenarios like the one in the blog post.

I think you had the wrong idea on security here, the security is for the device manufacturers benefit to obsolete the hardware and force you to buy a new one not for your benefit. All the data is already being shipped off to where the hell ever for building models of you for advertising and more.

I use fish now instead, honestly a nicer shell and shell language all around.

Nothing has solved sadness for me as well as lifting weights, long fast bike rides, and team sports. Nothing.

If only Qualcomm knew how to do software more than lawyer.

NPU is space that would've probably been better put into something like a low power programmable DSP core, which they more or less are depending on which one you are looking at but with some preconceived ideas on how to feed the DSP its data and get the hardware working. You don't get to simply write programs on them usually from what I've seen.

I've read this, and frankly its comparing apples to oranges. These are not the same things though naively they may appear the same.

It doesn't have anything to do with it. It's some nice syntax over cooperative multitasking.

It’s more like you need to program a dataflow rather than a program with instructions or vliw type processors. They still have operations but for example I don’t think ethos has any branch operations.

How async works with embassy is also interesting. In effect it works like a work queue, when something is waiting on a waker (interrupt) and is woken, the Future (task) is enqueued to be polled (run) by the executor.

There’s good and bad things about this. It’s clever for sure but there can be variable latency between when the hardware event occurs and when the next step in the task starts. This is a lot like zephyr/linux work queues but with linear reading code sprinkled with async/await.

It's also being used by microsoft for EC https://opendevicepartnership.org/embedded-controller

It can, but adds some caveats that rtic does not have like dead locking.

Garmin has been doing this for years now. The watches are built incredibly well and are well worth the cost.

It turns out that you don’t have to love your customers to make money. Abuse is the end state of most products once they’ve reached a point where there are few if any customers left to enthrall but still the world demands ever greater profit. VMware was and is there. Intel too actually.

Intel famously pivoted from memory. Maybe it’ll still get to where Pat wanted it to go as a foundry in its most recent pivot attempt, unclear yet.

How much was grifted from existing emulators?

Sounds like Google could really use Nix

Make all RAM the same density, lease out extra RAM through software. Rent all the things. Blackrock demands it.

AI has had a net negative on my life and created negative value for me and my family. It's raising my power rate. It's stealing my ideas and creative output. All to enrich a select few assholes who didn't need any more enrichment.

AI embodies everything wrong with our modern gilded age era of capitalism.

Devicetree continues to be a massive crutch for arm soc vendors.