cperciva

48 ms·

901.
by cperciva 4y ago
Operating systems, especially kernel.
902.
by cperciva 4y ago
You're welcome! It's remarkable how useful a few lines of shell script running from a cron job have been.
903.
by cperciva 4y ago
You're right -- about modern systems. The article is aimed at embedded systems, which are generally less than modern.
904.
by cperciva 4y ago
It's base64, but with added checksums, yeah. There's very little that I use off-the-shelf in Tarsnap -- generally speaking I take existing standards and then make tweaks as needed to optimize for Tarsnap's use case. (Someti
905.
by cperciva 4y ago
That's why the Tarsnap key file format includes a checksum on each line, so tarsnap can tell you which line to look for the OCR (or typing) error on. When I was writing this code I wasn't sure if it would ever matter but figured &
906.
by cperciva 4y ago
My answer was always the same: "Yes, I have smart friends so if they're jumping off the bridge there's probably a train coming". Oddly enough the adults in my life never seemed to appreciate the logic.
907.
by cperciva 4y ago
See also the Azores Glider, where a fuel leak was made worse by rebalancing the fuel between tanks -- resulting in both engines dying instead of just one. Fortunately the story of the Azores Glider has a happy ending; that set a record for
908.
by cperciva 4y ago
If there's other users for this I'll write a getenv_multi which takes a callback function. Didn't seem like much point doing that until we want to use this somewhere else though. We end up with device=xxx and device_1=yyy bu
909.
by cperciva 4y ago
The typical experience is just fine and nobody posts to Reddit about it -- never mind posting twice.
910.
by cperciva 4y ago
Have you tried walking in the front door of the Whitehouse and asking for or insisting on government assistance? I certainly hope that you'd get thrown out. It's easier for everyone if you go through the appropriate channels.
911.
by cperciva 4y ago
I had a lot of help. I was driving this, but it was absolutely not a one-person effort.
912.
by cperciva 4y ago
Problem is that in general we want foo=bar to replace any previous value of foo.
913.
by cperciva 4y ago
It took me four days to get the blog post written and I only finished it last night because the toddler went to sleep early. I didn't want to drag it out any longer! But to answer the question: On small VMs, we can reach /sbin&#x
914.
The FreeBSD/Firecracker Platform(daemonology.net)
227 points by cperciva 4y ago|102 comments
915.
by cperciva 4y ago
Revealed preferences say "making FreeBSD work in VMs". So far I've ported FreeBSD to EC2 and Firecracker...
916.
by cperciva 4y ago
I'm talking about editors censoring papers. Authors could avoid this problem by writing differently, but as a reader I'd prefer they don't; knowing that a body of work is closely related is very useful, especially when it co
917.
by cperciva 4y ago
If you want a review to be truly double blind, you have to start censoring the paper -- things like "in previous work [1-10] we showed..." makes it obvious who the authors are even if you remove the names from the top of the paper
918.
by cperciva 4y ago
And for the same reason, the Cuban Missile Crisis passed without any change to the clock -- by the time they met to discuss changing the time, the crisis was over.
919.
by cperciva 4y ago
Indeed. I'm using such a closed loop right now, and old Medtronic pumps routinely sell for $500-1000 to people who want to use them to loop.
920.
by cperciva 4y ago
My understanding is that the Ethiopian calendar is basically the ancient Egyptian calendar aside from some names changing.
921.
by cperciva 4y ago
February, the last month of the year was shorter because the year isn’t long enough to give it 30 days Originally February had 30 days, along with all the other months. (The 5 or 6 remaining days at various times were either extra days w
922.
by cperciva 4y ago
BC does that for electricity, but there's talk of getting rid of it -- because it punishes people for using electric cars and heat pumps. Great for reducing electricity consumption; not great for reducing total energy usage .
923.
by cperciva 4y ago
Some people are running wifi via a Linux in bhyve (wifibox). Making it easier to port Linux drivers to run in native FreeBSD (via linuxkpi) is definitely a better route though.
924.
by cperciva 4y ago
Required by POSIX, and it does exactly what it's supposed to do: Changes directory in the process (not the parent shell). This isn't completely useless -- you get an exit status and potentially error messages out. (And yes, I&#
925.
by cperciva 4y ago
You should always define Pi in your code, in case the value ever changes.
926.
by cperciva 4y ago
Thanks! I think kivaloo and spiped are probably the best quality code I've ever written.
927.
by cperciva 4y ago
I thought the issue with card games wasn't that they were Western, but rather that they were gambling.
928.
by cperciva 4y ago
You're only paying for their disks. Admittedly it's more expensive than snapshot-and-restore, but it's much cheaper than leaving the instance running.
929.
by cperciva 4y ago
In the late 90s I was a student representative on a University committee tasked with putting together a policy on hazing after some incidents with sports teams. We had great difficulty putting together a definition which didn't also de
930.
by cperciva 4y ago
Why not use EC2? I find it works great as a development environment like this; starting a stopped instance takes < 5 seconds.

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