gregdunn

5 ms·

1.
by gregdunn 5y ago
Disclaimer: I work at AWS, primarily in the compute space, but I'm not speaking in an official capacity. I would say they fulfill different purposes. The SSM agent has quite a bit of additional functionality, even within the Session Ma
2.
by gregdunn 5y ago
Disclaimer: I work at AWS, primarily in the compute space, but I'm not speaking in an official capacity. As fguerraz mentioned, modern AWS instance families are basically all powered by Nitro, which refers to the ecosystem around the h
3.
by gregdunn 6y ago
>Maybe Amazon is doing something similar? Yep! https://sustainability.aboutamazon.com/environment/sustainab... Disclaimer: Amazon employee, not speaking on behalf of the company, just posting a link to something I a
4.
by gregdunn 6y ago
Disclaimer: I work at AWS, totally different team, and had never heard of this product until this announcement. This is 100% my personal opinion and I'm not operating in any official capacity. >Personally, I'd probably just suf
5.
by gregdunn 7y ago
Market, and point in the career. If you've got 15-20 years of experience and you've never stayed somewhere more than 12-18 months, it's a very different scenario than someone with 5-6 years, even in SV.
6.
by gregdunn 7y ago
It depends on the company and their needs. In the majority of cases, I would say this is a positive thing for your resume. If their goal is to hire someone for a specific position and they hope that person stays in that same role long term,
7.
by gregdunn 7y ago
This matches my experiences, and I'm certainly no Distinguished Engineer, but as a PE I would still have relatively few options to work at a similar level and compensation if I was looking. Thankfully I'm quite happy where I am.
8.
by gregdunn 7y ago
Disclaimer: I work at AWS on an unrelated team. I was not involved in development of this product. Opinions stated are my own, and not necessarily a reflection of my employer. Nothing here is being posted in any sort of official capacity. T
9.
by gregdunn 7y ago
Disclaimer: I work at AWS, but this post isn't being made in any sort of official capacity, I have no relation to the team in question (this is the first I've even heard of the service), and the opinions here are entirely my own a
10.
by gregdunn 7y ago
High performance networking: https://www.iovisor.org/technology/xdp Cloudflare uses XDP for a variety of things: https://blog.cloudflare.com/xdpcap/ https://blog.cloudflare.com/l4d
11.
by gregdunn 7y ago
I feel like a unique ID isn't enough to protect your identity from an analytics provider, especially if they're receiving analytics on you from multiple sources.
12.
by gregdunn 7y ago
It's not strong enough to overcome the forces keeping us together. But that might not be the case for forever: https://en.wikipedia.org/wiki/Big_Rip
13.
by gregdunn 8y ago
A decent amount of countries offer point based immigration visas, where a degree certainly helps, but is not a hard requirement. For example, Japan's Highly Skilled Worker visa can be pretty easily achieved without a degree.
14.
by gregdunn 8y ago
>I'm forced to wonder whether the same strain of yeast also survived on the surface near the original brewery location Maybe something similar to it. Commercial breweries were selective in reusing batches of yeast even back then. Ho
15.
by gregdunn 8y ago
I've read a dozen or so articles on this (It's been a somewhat popular discussion on several homebrewing communities focused on using interesting/rare/"alternative" yeasts), and the beer that's been brewed
16.
by gregdunn 8y ago
You can also get VTune as part of System Studio through a 90 day perpetually renewable community support license - https://software.intel.com/en-us/system-studio/choose-downlo... No talking to Intel's enginee
17.
by gregdunn 8y ago
>Rovelli's position is that time is not fundamental, not that it does not exist. It emerges from something more fundamental. Well, I'm a layperson, and I'm guessing you are a physicist (or at least much more inclined towar
18.
by gregdunn 8y ago
> Everyone in the same reference frame (or close enough) is going to agree about the order of events Not necessarily. On a macro scale for general human interactions, for the most part, but the only thing observers have to agree on is sp
19.
by gregdunn 8y ago
> It is perfectly okay to say something is happening at 1 million light years away. Well, maybe. Maybe not. Carlo Rovelli would argue that time doesn't exist like that (or at all) and that saying that something is happening now when
20.
by gregdunn 8y ago
The 3 years/10^18 figures I used were taken from https://arxiv.org/pdf/1304.2821.pdf : "Using the largest allowed value for the photon mass from other experiments, we find a lower limit of about 3 yr on the p
21.
by gregdunn 8y ago
Yep. Time still passes for photons, but, at a rate so insanely slow in comparison to how we view it. 10^18 years by our perspective would only be 3 years by the perspective of something traveling at the speed of light. We observe things goi
22.
by gregdunn 8y ago
Active FAANG employee here, so a bit of my take on it. Personal opinion, of course, and not any sort of official Amazon statement. Management DOES do a lot to prioritize/delegate/lubricate channels of communication, etc. That is t
23.
by gregdunn 8y ago
For now they are, and that might hold true in the future as well. There are some projects to bring BPF features needed (generally called eBPF) to FreeBSD, such as https://github.com/YutaroHayakawa/generic-ebpf - but th
24.
by gregdunn 8y ago
>But my most basic experiments so far have failed, and I don't know how to get support. I'd recommend the #iovisor irc channel on oftc. I haven't stopped by in a bit, but the times I did, I usually was able to get assista
25.
by gregdunn 8y ago
Hey Brendan! Super exciting - I'm already updating some internal documentation to point people towards this :) When are we getting a Linux performance engineering book with all the bpf/bcc/bpftrace stuff in it?
26.
by gregdunn 8y ago
Unless I'm woefully off base here, if the satellites were incorrect, you would basically be permanently 300m off, not just temporarily. There's not so many GPS satellites out there that you're going to be bouncing around them
27.
by gregdunn 8y ago
>Whether this qualifies as exceptional is, of course, arguable, but I'm arguing that it is. I could understand the point that it doesn't have to be, but, to be actually convinced, I'd want to see evidence that it's we
28.
by gregdunn 8y ago
For sure! But that's a matter of the provider's placement decisions, and not inherent to virtualization.
29.
by gregdunn 8y ago
By no means do you need DPDK to basically eliminate the latency difference - I just wanted to point out how low latency can go in general. A vm using SR-IOV with ixgbevf on good ol' Intel 82599 from 7 years ago will not have a latency
30.
by gregdunn 8y ago
>Visualization overhead for networking is too high for the cost. Do you mean virtualization? If so, I recommend looking into testing this with SR-IOV based NICs and passing through a VF to the guest. Even in regular operation the latency

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