ptomato

9 ms·

31.
by ptomato 5y ago
To be clear on the 'special' vdev; for future writes, it serves as the sole metadata _store_ for the pool, not a cache, correct?
32.
by ptomato 5y ago
I can confirm that e.g. there has definitely been e.g. a batch of enterprise SSDs from Intel a couple years ago which failed en masse after a certain amount of powered-on time.
33.
by ptomato 5y ago
Evading a temporary ban is _universally_ reason for a permanent ban at any competently moderated venue.
34.
by ptomato 5y ago
yeah, pretty easily, why wouldn't it? those are the post-heatsoak numbers on my desktop (running an epyc 7443p), sustainable indefinitely.
35.
by ptomato 5y ago
they appear to be bragging about 12GiB/s of aes-256-gcm per crypto accelerator. This is equivalent performance to about 2.6 cores of epyc milan, but let's be generous and say 3 cores. At retail, 3 cores of epyc milan costs $240-$3
36.
by ptomato 5y ago
IBM claims 7x better per-core performance vs x86, but they're lying about that, of course.
37.
by ptomato 5y ago
Though there are attempts underway to do inline signing of JWT ( https://datatracker.ietf.org/doc/draft-jordan-jws-ct/ ), though that's still not nearly as bad as XML-DSIG of course. I'm sure some vulns wi
38.
by ptomato 5y ago
You'll have to write some glue code, but if all you need is standard Ed25519 signatures, current-gen Yubikeys can do this. Somebody's implemented a python library that does that here https://github.com/tschudin&#x2
39.
by ptomato 5y ago
sanoid ( https://github.com/jimsalterjrs/sanoid/ ) is probably the most featureful, but there's quite a few I'm aware of - zfsnap, zfs-auto-snapshot, zfs_autobackup, znapzend...
40.
by ptomato 5y ago
Yup; you could do every minute with no real problems if you like. I believe you start to run into performance issues with high (1000+) snapshot counts, and then mostly when actually doing snapshot operations, so you'd want to have some
41.
by ptomato 5y ago
If you have to actually compare the files on both ends, however, that's still many more round trips than necessary for zfs send, which is just sending all blocks with a birth time after the previous snapshot
42.
by ptomato 5y ago
It remains a _delightfully_ straightforward way to do backups; I do incremental zfs send with hourly snapshots to my local NAS and also to an rsync.net ZFS account ( https://www.rsync.net/products/zfsintro.html); it&#x2
43.
by ptomato 5y ago
single-threaded blake3 is about 1.9x faster than (hardware) sha256 on my Zen 2 CPU.
44.
by ptomato 5y ago
Sublime Text has always performed similarly for me
45.
by ptomato 5y ago
Sublime Merge?
46.
by ptomato 5y ago
> for example you can't create a kubernetes cluster then add a resource to it I have no love for HCL, but you can do this by creating a kubernetes provider with the auth token pointing at the resource output for the auth token you g
47.
by ptomato 5y ago
yeah, funny how antivirus software would complain about the website of somebody known, among other things, for demonstrating a lot of security flaws in antivirus software.
48.
by ptomato 5y ago
> MS isn’t collecting stuff to shove advertising down our throat maybe if MS wanted people to believe that, they wouldn't put so much advertising in their OS
49.
by ptomato 5y ago
I'm fairly confident the nodes are half width; if you look at the latches it very much would appear you can pull out half of every 2u at once, and if you look at the rear there's 2 net cables going into each side.
50.
by ptomato 5y ago
probably air density cooling solution is qualified for.
51.
by ptomato 5y ago
it's better than that, actually, as an AWS vCPU is a hyperthread, not a full core, and these would have 4096 hyperthreads.
52.
by ptomato 5y ago
for what they're advertising there, on the order of $1mm, based on underlying hardware costs.
53.
by ptomato 5y ago
It looks like they're doing 2u half width nodes, so I'd strongly suspect each node is 1TB of ram, one epyc 7713p, and 10 3.2TB u.2/u.3 drives. eta: also suspect 30TB total just means they're leaving 64GB ram for the hy
54.
by ptomato 5y ago
imagine releasing a new OS in 2021 written largely in a non-memory-safe language.
55.
by ptomato 5y ago
See also the (compatible, same middle server by default) golang port, https://github.com/psanford/wormhole-william , complete with static binaries for mac/win/linux. I've found this helpful when I've
56.
by ptomato 5y ago
You only get one shot at guessing it per transmission attempt.
57.
by ptomato 5y ago
from the PSU typically one (on hotswap supplies); e.g. on https://cdn11.bigcommerce.com/s-qfzamxn9kz/images/stencil/or... the connectors on the left are just control/sense pins and the big beefy ones are
58.
by ptomato 5y ago
Go is extremely easy to cross-compile, but adding C libraries will mean you also need a C cross-compiler (and the various go headers & libs for CGO built for that platform)
59.
by ptomato 5y ago
Do you, realistically? The standard behavior for most things afaik on looking up a domain name is to send out an A query and (simultaneously ideally) A queries with searchdomains appended. That's not gonna get anywhere near 512 bytes f
60.
by ptomato 5y ago
sure, but that's why BPF is so great; I'd guess a reasonable program that assumes port 53, parses the packet enough to look at the first question and compare domain against .internal and then rewrites address + updates checksum is

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