oso2k

31 ms·

301.
by oso2k 7y ago
> Admittedly, working in HPC gives me a biased view, but everyone I see has resigned themselves to processors ceasing to give meaningful boosts to single-threaded performance. There's also that realization that compiler & softwa
302.
by oso2k 7y ago
IEEE754 also has multiple representations along with imprecise representations of integers, it’s limits (+Inf, -Inf, NaN) and simple decimals (0.1 + 0.2 != 0.3). For now, the biggest benefit is that we have hardware acceleration for IEEE75
303.
by oso2k 7y ago
Full disclosure: I work for Red Hat Consulting Officially, Fedora & Fedora Server are the upstream for RHEL Workstation and RHEL, respectively.
304.
by oso2k 8y ago
Disclaimer: I work as a Red Hat Consulting Architect focused on OpenShift (our Kubernetes distro). I didn’t say anything about being a genius or being stupid. But it does help to have some something to reference [0][1]. In short, there’s s
305.
by oso2k 8y ago
Not sure what you mean by throttling. I tell my customers to do 4 things 1) Set a Request at about 50% of max CPU usage 2) Set a Limit at about 90% of max CPU usage 3) Configure a HorizontalPodAutoscaler that kicks in at 70%
306.
by oso2k 8y ago
In my experience, the clusters that break are clusters that are architected poorly and/or go unmaintained. There's also some of us that believe clusters need to be treated more like cattle rather than pets.
307.
by oso2k 8y ago
Disclaimer: I work for Red Hat as an OpenShift Consulting Architect. If you want a gentle, free introduction to OpenShift (our Kubernetes distribution), I recommend trying out Katacoda portal, Learn OpenShift [0]. Katacoda [1] also has va
308.
by oso2k 8y ago
Yes. Says so in blog post.
309.
by oso2k 8y ago
Kennedy is a different kind of facility, even from some of the other NASA Centers. There's a huge emphasis on compatibility of launch & ground systems. And, you're right about bureaucrats and you could even extend it to lobb
310.
by oso2k 8y ago
Wrong [0][1]. They still do a lot of propulsion. :D They just primarily focus on robotics now with lots of work in landing systems and spacecraft (orbiters). [0] https://sec353ext.jpl.nasa.gov/ep/ [1] https:/&
311.
by oso2k 8y ago
As a former JPLer, I'd disagree with you. When I joined in 2002, over 65% of JPL's employees had at least a bachelors. Still, 40% had a secondary degree (MS or MBA). It was not unusual to see people get passed on promotions for
312.
by oso2k 8y ago
Was it a commercial or government CubeSat?
313.
by oso2k 8y ago
The small parts of the Mars Rovers (MER) I worked on or worked with didn’t use SQLite. It was too early in SQLite’s history for it to be used on MER. MER also used VxWorks which probably didn’t have a lot in the way of POSIX support at th
314.
by oso2k 8y ago
So, it’s been a while since I’ve dived in [0], but “time” as a dependency has been, what I would call, “engineered out of the system”. Instead, there’s concepts of (local) timers, Store-And-Forward Overlays, retries, communication opportun
315.
by oso2k 8y ago
Haha. Great to hear that work still lives! I hope you’re not using the (horrible in retrospect) stuff I wrote 15 years ago that worked on 2.0-2.6 kernels. I remember porting the network kernel driver from 2.0-2.2 manual build system to i
316.
by oso2k 8y ago
There are real, standardized protocols [0] for this sort of thing, now. Early in my career, when I worked at JPL/NASA, I did a bit of work to test these protocols on Linux in a simulated Network of spacecraft. Fun stuff! [0] https:&
317.
by oso2k 8y ago
I always like to refer to Ian Hickson's Requirements for Replacing the Web [0] when this topic comes up. They seems to encapsulate well the social, technological and economic dynamics required when discussing replacing the Web. Howe
318.
by oso2k 8y ago
For lots of things, and especially if you stick to the Unix Philosophy or Suckless Philosophy, this Makefile is all you need. I personally add ‘install’, ‘uninstall’, ‘clean’, and ‘superclean’ targets to my projects but this is a really gr
319.
by oso2k 8y ago
Do you have any projects to share?
320.
by oso2k 8y ago
Web Assembly also does not expose browser vendors to Intel’s patent portfolio.
321.
by oso2k 8y ago
I don’t know any of the details (apologies!) but some OpenShift devs I’ve talked to and work with at Red Hat do this for their work. It seems some of the details are here [0]. [0] https://github.com/openshift/origin&#x
322.
by oso2k 8y ago
In Red Hat OpenShift Consulting, we openly advise against “One cluster to rule them all” and the vast majority of our customers heed our advice. Our default delivery models support Sandbox, Nonprod, Prod cluster stand up. Some of us even
323.
by oso2k 8y ago
This should be a `Show HN:`. OP is an author of the linked article.
324.
by oso2k 8y ago
...And contracts, and export controls, and ... :(
325.
by oso2k 8y ago
I spent the bulk of the first 8.5 years of my career in and around JPL’s Spacecraft Assembly Facility (SAF), Test Engineering Lab (TEL), Assembly, Test, and Launch Operations (ATLO), aka, Building 179. A lot of software systems in Operation
326.
by oso2k 8y ago
(Also a Red Hatter) So...not completely true. There was that one memo-list thread last year where someone complained loudly that they were not allowed to work on an intentionally competing solution and repo, even if it was on their own tim
327.
by oso2k 8y ago
As nijave said, minishift and minikube are Kubernetes distros that will run on your laptop given virtual box, kvm, xhyve, hyper-v, and at least 2 cores, 2gb of RAM, 20gb of disk.
328.
by oso2k 8y ago
I concur on the malloc sentiment.
329.
by oso2k 8y ago
Yes, it'll be our first official LTS release. I think the specifics aren't yet released but I think the intent is to make it more like the RHEL LTS policy & lifecyle.
330.
by oso2k 8y ago
I hear ya. I recently worked with a customer using ASGs and the scale down part of the ASG does need to make subscription-manager calls to avoid leaking subs. Also makes blue-green cluster upgrades more interesting as well. If you have a

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