alexgartrell

8 ms·

1.
by alexgartrell 24d ago
https://thinkingmachines.ai/tinker/ https://github.com/thinking-machines-lab/tinker-cookbook (As a TML person, I'm obviously biased, but I couldn't resist because of "tinkering&quot
2.
by alexgartrell 6mo ago
The linked article says they decided to do CD in 2016 fwiw so that's not inconsistent with what I said. You reduced the number of patches a lot and also pushed very hard to get us to 3.0 after we sat on 2.6.38 ~forever. Which was very
3.
by alexgartrell 6mo ago
For the peanut gallery more: I worked with both of these guys at Meta on this. The "servers are only on for a few hours" thing was like never true so I have no idea where that claim is coming from. The web performance test took
4.
by alexgartrell 1y ago
I did something similar a long time ago https://github.com/facebookresearch/py2bpf It was definitely a toy, I transliterated from python bytecode (a stack based vm) into bpf. I also wrote the full code gen stack myself
5.
by alexgartrell 1y ago
Not sure it’s relevant in the cloths these guys take
6.
by alexgartrell 1y ago
The cloud business model is to use scale and customer ownership to crush hardware margins to dust. They’re also building their own accelerators to try to cut Nvidia out altogether.
7.
by alexgartrell 1y ago
I’d imagine that these clouds are probably being incentivized to participate
8.
by alexgartrell 1y ago
I don’t think pivot_root is necessary for something like this, but a new mount namespace will definitely help avoid creating a mess on accident
9.
by alexgartrell 2y ago
More low effort posts please!
10.
by alexgartrell 2y ago
Sharing a queue itself is not new https://www.kernel.org/doc/html/v5.8/networking/packet_mmap.... and https://docs.kernel.org/next/userspace-api/perf_ring_buffer.... are two ex
11.
by alexgartrell 2y ago
The thing that we need in order for your dream to become a reality is excellent user space frameworks, so I encourage you (and anyone else) to go build one or (better) find one you like and contribute.
12.
by alexgartrell 2y ago
> File IO is perhaps the best example of this (at least on Linux). To handle such cases, languages must provide some sort of alternative strategy such as performing the work in a dedicated pool of OS threads. AIO has existed for a long t
13.
by alexgartrell 2y ago
Yeah that’s it. Probably just wasn’t supported in the rust age library when I used it. Will double check.
14.
by alexgartrell 2y ago
Age is great. I used the rust crate to write an ftp server that encrypts the files before they hit disk (specific use case is having a drop box for my network scanner) and I love the simplicity and composability it provides. One feature req
15.
by alexgartrell 2y ago
The core framework (sched_ext) was written for general workloads and can quite beneficial. It lowers the costs of creating and iterating on schedulers quite a bit. To be honest, when they started working on it I don’t think any of us expect
16.
by alexgartrell 2y ago
Latency and cache coherency are the other things that make this hard. Cache coherency can theoretically be resolved by CXL, so maybe we’ll get there that way.
17.
by alexgartrell 2y ago
Or perhaps more accurately, throughput is not the only goal.
18.
by alexgartrell 3y ago
A professor actually told us that freeing prior to exit was harmful, because you may spend all of that time resurrecting swapped pages for no real benefit. Counterpoint is that debugging leaks is ~hopeless unless you have the ability to pru
19.
by alexgartrell 3y ago
As a Meta employee, I consider this a victory against NIH :)
20.
by alexgartrell 3y ago
OpenAI's recruiting pitch was 5-10+ million/year in the form of equity. The structure of the grants is super weird by traditional big-company standards, but it was plausible enough that you could squint and call it the same. I&#x2
21.
by alexgartrell 3y ago
Even if the laws are stupid, the killer feature you are describing is called crime.
22.
by alexgartrell 3y ago
IME, familiarity with /etc/nsswitch.conf and the rest of the nss stuff is very highly correlated with people who have seen some shit.
23.
by alexgartrell 3y ago
I still remember when I came to you with my “attachments shouldn’t live in the mssql database” plan and you said “yeah, probably, but doing it any other way would be a million times harder to maintain.” You were 100% right and I think of i
24.
by alexgartrell 3y ago
It was a joy to work with you as well :) It's a bit harsh but I always feel like Fog Creek might be the cautionary tale in "what happens if you over hire for capability vs. your requirements?" I think that a less capable team
25.
by alexgartrell 3y ago
I had an internship at Fog Creek and would add that it was probably the most friendly and harmonious place I worked, which made it very reality-show-incompatible (and very 21-year-old-me incompatible, I wasn't asked back lol). Certainl
26.
by alexgartrell 3y ago
> Mark Zuckerberg justified the move in a Facebook post: “Open source drives innovation because it enables many more developers to build with new technology. It also improves safety and security because when software is open, more people
27.
by alexgartrell 3y ago
IMO this is equivalently scary to installing an arbitrary rpm.
28.
by alexgartrell 3y ago
The person to whom you are replying clearly meant (IMO) that you shouldn’t ask for more compensation or you will make people act defensive. Frankly, your reply reads a little defensive so maybe that’s not awful advice? It also seems like th
29.
by alexgartrell 3y ago
I actually disagree that this is the reason for the aversion. Instead I think it comes down to a couple of things: 1. Containers are commodity. For commodities, price wins first, then marketing. Docker is equally free (as in beer) and is fa
30.
by alexgartrell 3y ago
It's also worth noting that io_uring has had at most 10-15 engineer-years worth of performance tuning vs. the many (?) hundreds of years that epoll has received. I work with Jens, Pavel, and others and can confidently say that low-qu

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