bboreham

19 ms·

241.
by bboreham 8y ago
Fails on the first example in TFA.
242.
by bboreham 8y ago
Need to be careful that Docker and LXC both default to unprivileged, however they use the term to mean different things. If you say “don’t run your containers as root on the host”, this matches the issue better.
243.
by bboreham 8y ago
In the version of history I remember, x86 won because it was 2-5 times cheaper than RISC for the same performance, then in performance per Watt once that became the limiting factor. All devs had SPARC machines and no intention to move to x8
244.
by bboreham 8y ago
Apple has a credit card already, in partnership with Barclaycard. https://www.apple.com/shop/browse/financing Edit: previous discussion from the last time this was “news”: https://news.ycombinator.com&#
245.
by bboreham 8y ago
Most consumer routers will by default block a connection _from_ the Internet. They use a private address range and apply NAT to outgoing connections, so explicit configuration is needed to do something with an incoming connection.
246.
by bboreham 8y ago
Traders went to prison for the Libor scandal; why would you think no-one will go to prison for this?
247.
by bboreham 8y ago
> The nice thing about escape sequences is that they are ignored if not understood. This is not what I find when I press my arrow keys in a container terminal set up with no TERM variable. I get funky characters spewed across the input l
248.
by bboreham 8y ago
Kubernetes has a “-system-reserved” flag for that purpose. Limits are something else entirely.
249.
by bboreham 8y ago
Sounds like a Kubernetes resource request, rather than a limit.
250.
by bboreham 8y ago
The Birthday Problem, as it is known, has sqrt(N) as an approximate answer to get a 50% chance of a clash. So 16 million devices.
251.
by bboreham 8y ago
What’s your reasoning? From my experience, a memory limit, if hit, will cause periodic OOM and restart; and a CPU limit will cause slowing-down of the processes. The tale already mentions restarting and slowing-down; it’s not clear to me th
252.
by bboreham 8y ago
“Earnings Before Bad Stuff”
253.
by bboreham 8y ago
There are two sets of settings for auto-scaling reads and writes, but you can turn them both on. Or you can turn on the very recent “on-demand pricing” and not worry about capacity settings.
254.
by bboreham 8y ago
Yes, that was my reaction on reading this, that it will only scale as long as queries are well distributed across the customers, products, etc.
255.
by bboreham 8y ago
Possibly. But my understanding of “the concept of OOP” involves a separate identity for each object. Suppose the thing you are dealing with is “Customers”, then with OOP each Customer is a separate object, while with MSOP you must communica
256.
by bboreham 8y ago
Something missing from this story. If ‘9’ gets you an outside line, then you miss the ‘0’, the number seen by the telco starts ‘11...’ Maybe the pbx is programmed to recognise ‘911’ and dial that, without requiring an outside line?
257.
by bboreham 8y ago
Brad Cox described this in “Object-oriented Programming”, a book I first read in 1989. Building applications. simply by plugging together off-the-shelf components remains a beautiful vision, and it is almost entirely unrealised 30 years on.
258.
by bboreham 8y ago
I used to ask this (cycles in linked list) question all the time, and I found it useful as a way to see how the candidate worked through an unfamiliar problem. No-one gave the 2-pointer answer, ever. For me it wasn’t a pass/fail “do yo
259.
by bboreham 8y ago
Interesting, this paper gives £2256 (table 2) https://www.health.org.uk/sites/default/files/AutumnBudgetWh... This page gives $4246: https://www.healthsystemtracker.org/chart-collection/h
260.
by bboreham 8y ago
Which particular day in 1929 are you thinking of? October 24 - 11% drop, followed by some recovery. October 28 - 13% drop October 29 - 12% drop The lowest point in 1929 was reached on November 13. The bottom of the crash was on July 8, 19
261.
by bboreham 8y ago
Netflix couldn’t predict its load in the early days, so saved a ton of money using pay-as-you-ngo rather than building out datacenters. Nowadays they are such a good advert for AWS they probably negotiated a deal which is way cheaper than t
262.
by bboreham 8y ago
> I didn't realize you could disable local storage. You are correct: there is no option to disable so we set to discard after 2 hours. Prometheus doesn’t write continuously to disk so the io is not noticeable. To your original quest
263.
by bboreham 8y ago
Cortex also uses gorilla-inspired compression, using the Prometheus source code. After compressing timeseries they are stored and indexed using a database-like thing, typically DynamoDB or Bigtable, but soon BoltDB will be an option. (I am
264.
by bboreham 8y ago
I apologise for my misunderstanding. What I remember is, during DockerCon in June 2016, I went into the code to see how it worked, and I found a top-level file setting up data structures and handlers that seemed to be 90% the same as the eq
265.
by bboreham 8y ago
Docker Swarm Mode also embeds etcd. (The embedding mechanism is copy-paste, which I find both ingenious and a bit distasteful. Maybe I’m just sore I didn’t think of it first)
266.
by bboreham 8y ago
The Macintosh Programmers Workbench (MPW), the first IDE for Mac, had a command-line with a simple shell. When I used it in 1986 it really needed a big machine, i.e. 512K RAM :-)
267.
by bboreham 8y ago
[Note I work on Weave Net] When we ran a similar test we got 3.75Gbit/sec; the figure in this article is closer to what we got in our "slow mode" which is used as a fall-back when it can't get the in-kernel path to work.
268.
by bboreham 8y ago
That calculation only works if you can spread your workload over ten minutes in the hour. If you want to get it done in ten seconds, then you don’t have any more to do for the next hour, then on-demand is much better.
269.
by bboreham 8y ago
The way I remember it, when this happened on our Sun E10Ks, the RAM was ECC but the cache was not. Maybe I misremember. It was 20 years ago.
270.
by bboreham 8y ago
Placebo is strong medicine. (It’s also possible this person had an unrelated condition)

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