gfv

7 ms·

1.
by gfv 11d ago
Vancouver is in Canada.
2.
by gfv 1y ago
sysctl vm.overcommit_memory=2. However, programs for *nix-based systems usually expect overcommit to be on, for example, to support fork(). This is a stark contrast with Windows NT model, where an allocation will fail if it doesn't fit
3.
by gfv 2y ago
I was talking specifically about double-precision floats. Single-precision floats can represent every integer up to +-2^24.
4.
by gfv 2y ago
I have a way simpler explanation. IEEE 754 double can only represent integers up to 2^53 without precision loss, so if you naively average two numbers greater than 2^52, you get an erroneous result. It just so happens that 2^52 nanoseconds
5.
by gfv 2y ago
Yes, you can chuck your SSD into a freezer. Data retention time increases exponentially in lower temperatures, so keeping it in a regular +4C fridge is enough to extend retention by decades. Just remember to heat up the disk before writing
6.
by gfv 2y ago
Powershell is mostly case-insensitive, and most of the core cmdlets have short aliases. Try `Get-Alias` (or `gal`) to learn more.
7.
by gfv 2y ago
You can use streaming WALs, like Litestream does. It is a pretty simple way to do incremental backups.
8.
Re: Referer: (Sic)(lists.w3.org)
3 points by gfv 3y ago|0 comments
9.
by gfv 3y ago
Yes, there is the technical appendix to the 2019 judgement. https://www.jfsa.org.uk/uploads/5/4/3/1/54312921/technical_a...
10.
by gfv 3y ago
It really doesn't help that it's written in ancient K&R C, but if you spend ten or so minutes just staring at it, familiar shapes and patterns start to appear. (Give it a try!) Incidentally, it's in line with how APL code
11.
by gfv 3y ago
In datacenters, you're mostly limited by the power (and thus cooling). Most commercial DCs only let you use up to about 10kW per rack. For standard 40U racks it's just 250W/RU, give or take. There are niche expensive datacent
12.
by gfv 3y ago
Zenfone 10 is only marketed as a compact phone. In reality, it is just slightly narrower than a Samsung S23 (146.3 x 70.9 x 7.6).
13.
by gfv 3y ago
The shining example is https://grafana.wikimedia.org .
14.
by gfv 3y ago
>why do we measure time in hours, days, weeks, months, and years rather than in decaseconds, hectoseconds, kiloseconds, megaseconds, etc.? We don't use them generally because at the time of French Revolution, due to taxes, standardi
15.
by gfv 3y ago
How long do you keep the transaction logs before rewriting them? I too had a few EC2 instances go down with signs of being severed from the EBS in the recent couple of weeks; mine were in eu-west.
16.
by gfv 3y ago
I'm pretty sure Lovecraft was at most a passing thought. The more immediate context would be the Putin's internet "AMA" in 2006[1], where "how do you feel about the awakening of Cthulhu" became a meme after bec
17.
by gfv 3y ago
When operating a complex system like Reddit, you know that something is going to happen during a significant event, but you generally don't know exactly what will break first. What's worse is that the system evolved as a respons
18.
by gfv 3y ago
Individually disposable, yes. But if you have a cluster of those, and you powered them on at the same time -- as it often happens -- you're in for an exciting ride when your servers start rebooting almost simultaneously, give or take a
19.
by gfv 3y ago
There are always bugs in silicon, just like there are bugs in software. They mostly show up under "a highly specific and detailed set of internal timing conditions". There are 40 documented erratas on EPYC 7002s alone; there are 3
20.
EPYC 7002 CPUs may hang after 1042 days of uptime(old.reddit.com)
159 points by gfv 3y ago|104 comments
21.
by gfv 3y ago
Precisely. Compare your comment with these excerpts from the article: >Windows 95 is reasonably fast in performance, and is not compromised by the arguably frivolous animation and eye candy features in Windows 98 and newer versions. >
22.
by gfv 3y ago
Windows 95 was released 13 years prior to the article, roughly the same time span as between Windows 7 release and today. Windows 7 is still installed on a single-digit percentage of computers. It is interesting to see that the reasons outl
23.
by gfv 3y ago
SSE came along much later. At the time it was common-ish to just slowly send HTML tags. I think at some point there was a gorgeous hack where they dynamically rendered and sent GIF frames with the messages of the chatroom.
24.
by gfv 3y ago
A connection is unwarranted if AWS gets an abuse letter about it.
25.
by gfv 3y ago
Intel has been making GPUs since roughly 2002, 845 chipset series. (There were earlier ones, but I'm
26.
by gfv 4y ago
Datacenters should have good, reliable and redundant supplies of power and connectivity. It is much easier to build a data center near or in a population center where fiber and electricity substations are plentiful, than to build your own l
27.
by gfv 4y ago
You may want to print multiple pages per sheet.
28.
by gfv 4y ago
Yeah, network scaling bugs are the most fun. The one I liked the most was when after expanding a pool of servers, they started to lose connectivity for a few minutes and then come back a minute or so later as if nothing happened. Turns out
29.
by gfv 4y ago
Pirate video releases generate heaps of traffic, and they won't be on the news. Earthquakes (mild ones, not the "cities collapse" kind) cause people to immediately go online and check on their friends. So do missile strikes,
30.
by gfv 4y ago
They are used indirectly through distance. At the time, the meter was defined as one ten millionth of the distance between the north pole and equator through the Paris meridian. That means that the meter corresponds to 1/100000 of a gr

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