I had no idea they still existed. I stopped caring about that politically correct shithole after I figured out a corporation was behind it, and not a bunch of nerds that wanted to discuss tech.
It started out that way but the guy who ran it went hard core leftist and he probably pioneered shadow banning and cancelling before it was a thing. I forget the faggot's name and I really can't be bothered to find it. There is porn to look at.
The demand for linux will be greater and greater as both apple and windows go to a much more dystopian OS. There are work-arounds but it needs to be packaged for the mass users to adopt it.
Have to dig a bit to discover the actual underlying reason why the unified random/urandom can be both secure and non-blocking, turns out to be good old Torvalds:
This is made possible thanks to a mechanism Linus added in 5.4, in random: try to actively add entropy rather than passively wait for it, in which the RNG can seed itself using cycle counter jitter in a second or so if it hasn’t already been seeded by other entropy sources
Doesn't most hardware have a random number generator now? I guess I understand the desire for a generic implementation, but for anything important I'd want true entropy.
I guess what I'm saying is if you're relying on the pseudo generator then fuck it you don't really care
Doesn't most hardware have a random number generator now?
Not a hardware RNG, no - if you want true hardware entropy then you need something like radioactive decay, same as with a high-precision time source. Most computers don't have that and must rely on random events occurring (such as network packets), which blocks /dev/random if they stop occurring, hence /dev/urandom for non-blocking PRNG.
The point of this development is that clock jitter always occurs over time, so adding that as an entropy source means that /dev/random is always fed, hence using that for everything. Technically it can still block, though the jitter entropy means it can no longer block forever (or more than a moment, in practice).
Good point, a very stable real-time device may need some other jittery source. If a stable device can always measure jitter with better precision then I would design the seed process to adapt to that, so it always has jitter data available at the same magnitude relative to its clock stability.
[ - ] v0atmage [op] 1 point 3.1 yearsMar 20, 2022 22:50:19 ago (+1/-0)
What do you think of the big Google database
You mean bigtable? Never used it, but tried most amazon equivalents (dynamo, redshift, athena, documetdb, s3) as well as cassandra+spark. I thought cassandra was really annoying to optimize queries for. I liked how seemless documentdb was to use with json payloads. Dynamo is probaby closest to bigtable and I found it easy enough to use but wish it was schemaless.
Side note: s3 is surprisingly well suited as a key value store if you front cache it.
and simulation system?
Haven't heard of google's simulation system- got a link? I really like reinforcement learning so maybe it's a good platform to do that over?
[ + ] Deleted
[ - ] deleted 1 point 3.1 yearsMar 20, 2022 17:49:41 ago (+1/-0)
[ + ] v0atmage
[ - ] v0atmage [op] 0 points 3.1 yearsMar 20, 2022 20:16:42 ago (+0/-0)
[ + ] Deleted
[ - ] deleted 0 points 3.1 yearsMar 20, 2022 20:29:30 ago (+0/-0)
[ + ] RobertJHarsh
[ - ] RobertJHarsh 1 point 3.1 yearsMar 20, 2022 14:24:07 ago (+1/-0)
[ + ] JustALover
[ - ] JustALover 1 point 3.1 yearsMar 20, 2022 15:20:31 ago (+1/-0)
[ + ] RobertJHarsh
[ - ] RobertJHarsh 0 points 3.1 yearsMar 20, 2022 18:52:29 ago (+0/-0)
[ + ] v0atmage
[ - ] v0atmage [op] 0 points 3.1 yearsMar 20, 2022 16:41:26 ago (+0/-0)
[ + ] RedBarchetta
[ - ] RedBarchetta 1 point 3.1 yearsMar 20, 2022 12:32:11 ago (+1/-0)
[ + ] Broc_Liath
[ - ] Broc_Liath 1 point 3.1 yearsMar 20, 2022 12:55:12 ago (+1/-0)
[ + ] SithEmpire
[ - ] SithEmpire 2 points 3.1 yearsMar 20, 2022 12:02:17 ago (+2/-0)
They're calling it the "Linus Jitter Dance".
He cucked a bit, but he's still a clever dude.
[ + ] v0atmage
[ - ] v0atmage [op] 1 point 3.1 yearsMar 20, 2022 13:28:38 ago (+1/-0)
[ + ] bonghits4jeebus
[ - ] bonghits4jeebus 1 point 3.1 yearsMar 20, 2022 13:40:26 ago (+1/-0)
I guess what I'm saying is if you're relying on the pseudo generator then fuck it you don't really care
[ + ] SithEmpire
[ - ] SithEmpire 1 point 3.1 yearsMar 20, 2022 14:04:52 ago (+1/-0)
Not a hardware RNG, no - if you want true hardware entropy then you need something like radioactive decay, same as with a high-precision time source. Most computers don't have that and must rely on random events occurring (such as network packets), which blocks /dev/random if they stop occurring, hence /dev/urandom for non-blocking PRNG.
The point of this development is that clock jitter always occurs over time, so adding that as an entropy source means that /dev/random is always fed, hence using that for everything. Technically it can still block, though the jitter entropy means it can no longer block forever (or more than a moment, in practice).
[ + ] bonghits4jeebus
[ - ] bonghits4jeebus 0 points 3.1 yearsMar 21, 2022 19:26:05 ago (+0/-0)
"most" may be an exaggeration, but I'm pretty used to seeing them on SoCs.
[ + ] SithEmpire
[ - ] SithEmpire 1 point 3.1 yearsMar 20, 2022 13:55:48 ago (+1/-0)
[ + ] Deleted
[ - ] deleted 1 point 3.1 yearsMar 20, 2022 11:37:38 ago (+1/-0)
[ + ] v0atmage
[ - ] v0atmage [op] 1 point 3.1 yearsMar 20, 2022 20:17:24 ago (+1/-0)
[ + ] Deleted
[ - ] deleted 0 points 3.1 yearsMar 20, 2022 22:14:06 ago (+0/-0)
[ + ] v0atmage
[ - ] v0atmage [op] 1 point 3.1 yearsMar 20, 2022 22:50:19 ago (+1/-0)
You mean bigtable? Never used it, but tried most amazon equivalents (dynamo, redshift, athena, documetdb, s3) as well as cassandra+spark. I thought cassandra was really annoying to optimize queries for. I liked how seemless documentdb was to use with json payloads. Dynamo is probaby closest to bigtable and I found it easy enough to use but wish it was schemaless.
Side note: s3 is surprisingly well suited as a key value store if you front cache it.
Haven't heard of google's simulation system- got a link? I really like reinforcement learning so maybe it's a good platform to do that over?
Haven't read it but open to doing so.
[ + ] Deleted
[ - ] deleted 0 points 3.1 yearsMar 21, 2022 12:54:21 ago (+0/-0)