cptnntsoobv

6 ms·

1.
by cptnntsoobv 9mo ago
Short answer: yes. I guess you are thinking of iouring being disabled in dockeresque rumtimes. This restriction does not apply to a VM, specially if you can run your own kernel (e.g. EC2). Experiment away!
2.
by cptnntsoobv 10mo ago
This abuse of notifications (and the user) is quite prevalent, unfortunately. In the case of the Uber app you should be able to turn these off (they are conveniently enabled by default, of course!). On the iphone it's Setting -> Com
3.
by cptnntsoobv 11mo ago
For UDP I'd look into GSO/GRO to get an upper bound on what pure kernel can do. With performance benchmarking, specially in networking there is no end to "oh, but did you think of that?!" :)
4.
by cptnntsoobv 11mo ago
> You actually can do a full checksum Indeed! This is what I had in mind when I wrote "cumbersome" :). It's been a while for me to be able to recall whether the problem was the verifier or me, and things may have improved
5.
by cptnntsoobv 11mo ago
> IPtables couldn’t do more than 5Gbps of throughput (TCP!) Is this for a single connection? IIRC, AWS has a 5gbps limit per connection, does it not? I am guessing since you were able to get to ~10 it must be a multi connection number.
6.
by cptnntsoobv 11mo ago
XDP, and the eBPF ecosystem in general, is quite neat. However, a word of caution: * The BPF verifier's DX is not great yet. If it finds problems with your BPF code it will spit our a rather inscrutable set of error messages that often
7.
by cptnntsoobv 1y ago
> Saves the full VM state to disk Does this include the RAM for the VM? For auto-idle systems like this where to park the RAM tends to be a significant concern. If you don't "retire" the RAM too the idling savings are limi
8.
by cptnntsoobv 1y ago
The spot termination warnings arrive 120 seconds before termination https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-ins...
9.
by cptnntsoobv 1y ago
As the saying at Netflix used to go back in the day: we need to become HBO before HBO becomes Netflix
10.
by cptnntsoobv 4y ago
> One cool thing we learned was how quickly you can Hibernate and wake up x86 EC2 instances. That ended up being a game-changer for us. Could you talk more about it? Are you keeping a cache of hibernated EC2 instances and re-launching th
11.
I’m Thrilled to Announce That Nothing Is Going on with Me(newyorker.com)
2 points by cptnntsoobv 4y ago|0 comments
12.
by cptnntsoobv 5y ago
It works on AWS's metal instances, doesn't it? That is definitely a constraint though, as the smallest available metal instances are pretty large, hence costly on a per instance basis.
13.
Vast Majority of websites are tracking you(washingtonpost.com)
4 points by cptnntsoobv 6y ago|0 comments
14.
Ask HN: What are you using headless Chrome for?
17 points by cptnntsoobv 6y ago|21 comments
15.
Bluejeans Acquired by Verizon(techcrunch.com)
2 points by cptnntsoobv 6y ago|0 comments
16.
by cptnntsoobv 8y ago
Fair point about the length leak. Good luck with this.
17.
by cptnntsoobv 8y ago
I see, pretty cool! I noticed that when typing in the email box nothing happens in the recording. I assume that this is to hide the email address but it would be nice to have some sort of visual cue (may be asterisks, like passwords?), othe
18.
by cptnntsoobv 8y ago
I can see this being useful in places where compliance is important (medical, finance etc.). Is the blurring not reversible though? Even if lossy?