Viewing profile — cptnntsoobv

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.…

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 def…

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 …

> 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 ver…

> 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 a…

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 ou…

> 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 "retir…

The spot termination warnings arrive 120 seconds before termination https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-ins...

As the saying at Netflix used to go back in the day: we need to become HBO before HBO becomes Netflix

> 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 keepin…

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 ba…

The headless version of chrome has seen great adoption since it was launched 4-5 years ago. I am wondering what types of use cases it is being used for. Running automated tests is …

Fair point about the length leak. Good luck with this.

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 …

I can see this being useful in places where compliance is important (medical, finance etc.). Is the blurring not reversible though? Even if lossy?