SEJeff

8 ms·

91.
by SEJeff 2y ago
Postgres supports JSONB natively. It literally speaks mongo line protocol and you can shove unstructured json into it. It has supported this since 9.4: https://www.postgresql.org/docs/current/datatype-json.html
92.
by SEJeff 2y ago
I’d note that Xandem while a total flop commercially, does own patents on tomographic motion detection. It’s a shame honestly, it was a really cool product.
93.
by SEJeff 2y ago
Cool but lxd is still a competitor to docker. I’ve read the move code for some work reasons. No lxc, as you said :)
94.
by SEJeff 2y ago
For folks interested in the current state of the art on sandboxing, here is a stab one of my former coworkers did: https://github.com/firedancer-io/firedancer/blob/main/src/ut... He researched chrom
95.
by SEJeff 2y ago
docker and lxd are competing projects. Docker does not use lxd to launch containers. lxd was written by the lead dev (at canonical) of lxc which was not as polished as docker but sort of kind of did the same thing (ran better chroots) They
96.
by SEJeff 2y ago
Systemd also has a newer feature named sysupdate which allows systemd to manage the host operating system. It has some really nice features around integrity and trusted boot. https://man.archlinux.org/man/systemd-sysupd
97.
by SEJeff 2y ago
This reminds me of Singapore, where the national stockpile of sand is a literal state secret: https://www.harvarddesignmagazine.org/articles/built-on-sand...
98.
by SEJeff 2y ago
These folks are trying to do what you are suggesting here: https://www.nationalpopularvote.com It is an interesting idea.
99.
by SEJeff 2y ago
You’d genuinely be shocked how many hardcore tech folks own and run hobby or semi-commercial farms. I run a biodiverse fruit orchard.
100.
by SEJeff 2y ago
The point of this post is really to read the comments. It was amusing to see Rob Pike so dismissive of fuzzing when fuzzing finds a lot of issues humans miss.
101.
Testing adding fuzz test support (2021)(github.com)
1 points by SEJeff 2y ago|1 comments
102.
by SEJeff 2y ago
The Drombeg stone circle is like stone henge’s grandfather.
103.
by SEJeff 2y ago
First name checks out :) I promised a coworker up north a bit in Meath that one day I’d come visit him and got that chance about seven years ago. Along the way we did the tourist in Dublin thing and part of it was the trinity long room and
104.
by SEJeff 2y ago
You will see a half dozen or so talks about firedancer and probably 35-40 or so of us total (I’m at the company that does security for firedancer, Asymmetric Research. We were founded by former jumpers). You can make the determination on yo
105.
by SEJeff 2y ago
Sure, and cpus supporting it will proliferate. Shockingly to no one reading hacker news... Both software and hardware continue to improve with time generally speaking. This was a huge software improvement on hardware that supports that func
106.
by SEJeff 2y ago
I didn’t use it because I didn’t find it relevant. They’re using hashing and EC algorithms and they’re improving them.
107.
by SEJeff 2y ago
Rumors of Jump’s demise are greatly exaggerated. Check the torrent of firedancer talks at Solana Breakpoint literally next week and decide yourself. Folks have said jump is gonna die for 20+ years. They’ve been around 30ish…
108.
by SEJeff 2y ago
That team is full of world experts in high performance computing.
109.
by SEJeff 2y ago
It’s a new from scratch implementation of a validator for Solana the fastest blockchain by several orders of magnitude. The slowest part is signature verification so they sped up hashing to improve performance of the entire system. They fol
110.
by SEJeff 2y ago
It’s an optimization in hashing algorithms that is around twice as fast as the ones Amazon is posting in thus article for the same eliptic curves. If the Amazon improvements are hacker news worthy (they are) this seems reasonable contextual
111.
by SEJeff 2y ago
The firedancer team at one of the better HFT firms wrote an AVX512 optimized implementation of ed25519 and X25519 that’s significantly faster than OpenSSL. https://github.com/firedancer-io/firedancer/pull/716
112.
by SEJeff 2y ago
Yeah, it makes for VERY confused builds when you select on cpu features available.
113.
by SEJeff 2y ago
I love that you can simply type `orb` and get dropped into a Linux vm. Some of the cpu features are super weird (cat /proc/cpuinfo and it is unlike literally any x86 cpu I've seen before), but unless you happen to build stuff
114.
by SEJeff 2y ago
I suspected that they used Cellebrite for this three days ago: https://x.com/SEJeff/status/1813079033430876433 As much as it makes folks reel, this is working as intended. If you don't want them to crack your
115.
by SEJeff 2y ago
Let’s not forget syscall filtering. Using custom eBPF for what is in effect a syscall firewall is something my coworkers did for one of our clients and it’s really slick. It’s like super seccomp.
116.
by SEJeff 2y ago
Clearly, if you care about security here, the best thing is to just use vim.
117.
by SEJeff 2y ago
What other instances? That was the really obvious one during model 3 “production hell” as they scaled up production mostly on hopium assuming they’d sell.
118.
by SEJeff 2y ago
It was a month, not a few hours, and I have no idea where you got the $200,000 number. That is certainly not what Elon himself said. He said 1 month. https://x.com/elonmusk/status/1323640901248393217
119.
Artifact Attestations–now in public beta(github.blog)
3 points by SEJeff 2y ago|0 comments
120.
by SEJeff 3y ago
Please do ask your AG center, but they’ll tell you they’re safe to eat. I make a jam of sorts with the berries. They’re not real sweet but are totally edible

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