sargun

39 ms·

421.
by sargun 9y ago
No. Netflow makes it very difficult to capture tail latencies, and outliers. Netflow's aggregate model makes it very hard to detect things like buffers falling over, and making intelligent decisions based on that.
422.
by sargun 9y ago
Switches are already programmable to a degree. This is out of scope -- and yes, it's slightly worse than the existing story, but not that much worse. I believe, as a community, we've decided that trusting the transport is a bad id
423.
by sargun 9y ago
Usually blog posts like this come at pivotal times in a company's lifetime. There doesn't seem to be anything yet. Interesting.
424.
by sargun 9y ago
I think the rental car model makes more sense. If your payload breaks the rocket, you're liable for it. I think this is Already the case with much rocket insurance.
425.
by sargun 9y ago
I'm really excited about reason. The front end community is adopting functional programming (concepts) at breakneck speed. I think this opens us up to more advanced type systems, and generative testing (property testing, say). These ar
426.
by sargun 9y ago
IP-per-container is a thing in DC/OS. I don't recommend using it. What's wrong with Minuteman? You can disable it if you want.
427.
by sargun 9y ago
What if we just invited the Kim family over? Brought them to some state dinners, and conferences, or some such? They're not great people, the stick doesn't seem to be working. What's the worst that'll happen?
428.
by sargun 9y ago
We use this in production every day. We've hit a couple bugs, but it's a surprisingly stable piece of software. We hit an issue with user namespaces, and it not correctly chowning things when "exporting" them into Docker
429.
by sargun 9y ago
What prevents someone from copying the key?
430.
by sargun 9y ago
GovCloud has stuff that would be bad if it goes down, but most institutions that use it have a DR plan.
431.
by sargun 9y ago
This is disheartening to hear. We recently (<3 months ago), introduced Btrfs into part of our fleet. This probably made us one of the larger Btrfs users. If Btrfs falls out of general favour, I'm afraid it may impede our ability to
432.
by sargun 9y ago
I've looked into BCacheFS extensively. Two problems I have -- First, it's not there in features yet. It doesn't have quotas, nor snapshots. Second, it lacks a formally published design for these features. Because the author i
433.
by sargun 9y ago
Oracle still has a couple developers on their payroll that do BtrFS development: * Liu Bo * Anand Jain
434.
by sargun 9y ago
If a building has that level of protection, I'd hope its fail closed not open.
435.
by sargun 9y ago
No. You are still reliant on the Arc which is kept on a slab outside of Linux's traditional page cache.
436.
by sargun 9y ago
OpenMoko holds a special place in my heart. It was the first project that I contributed to in any meaningful fashion. I wrote a couple patches to the Python implementation of FSO. It taught me a ton about how GSM, embedded devices, and powe
437.
by sargun 9y ago
What's a legitimate usage of acid? Plenty. Cooking. Engraving. Cleaning.
438.
by sargun 9y ago
I used to own a bunch of 750 - 5000 mW portable (pen, and a plugin) lasers. Historically, I've used them for stargazing (i.e. pointing out stars for other people to look at), burning / igniting things I don't want to get near
439.
by sargun 9y ago
Storage of illegal numbers?
440.
by sargun 9y ago
Couple questions: 1) How do you steer an FEL? 2) These seem like they'd be pretty good for destroying hardware (drones, cell phones). Is that true?
441.
by sargun 9y ago
The BPF syscalls don't require cap sys admin. Only specific invocations. You can setup a socket filter without sys admin, and a device or XDP filter with net admin.
442.
by sargun 9y ago
(e)BPF has the following guarantees: * Strictly typed -- registers, and memory are type checked at compilation time. If you use something like Rust, you'd have to bring rustc into the kernel * Guaranteed to terminate -- you cannot jump
443.
by sargun 9y ago
Is this really Cosmos? Does that mean SCOPE queries are coming?
444.
by sargun 9y ago
Fastly. Google sites.
445.
by sargun 9y ago
AVX and AVX2 are also included.
446.
by sargun 9y ago
For one, this is done on a core-by-core level. I believe Intel has the capability to monitor for this behaviour and do some dynamic throttling in certain models, which cloud vendors may have access to. I think they introduced some of this i
447.
by sargun 9y ago
Be very careful about this in a shared environment. AVX512 slows down the CPU cores because of thermal, voltage throttling. The instructions "take more work". Intel CPUs take 1 MILLIsecond to return to normal speed. If you're
448.
by sargun 9y ago
Why do you say that? They're converging with the way the rest of the world* does things. *Consumer, and Enterprises in the US
449.
by sargun 9y ago
Ah, well it could be. Light travels something like 66% of the speed in Fiber as compared to air. There have been attempts to design things like a balloon network across the Atlantic by HFT folk. It'll happen eventually.
450.
by sargun 9y ago
I highly recommend Packet.net instead of Scaleway if you care for bare metal or ARM. Their storage is local by default, which makes a huge difference in operational stability. In addition, their staff is super helpful. As far as ARMv8, and

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