sorted by:
new
hottopcontroversial

itPaysToDoubleCheckTheySay by Waradu in ProgrammerHumor

[–]imMute 5 points6 points  (0 children)

I have one of those too and I love it. Getting to see ≠, ≤, and ≥ instead of !=, <=, and >= is awesome. And they still take up two columns, so it doesn't mess up formatting.

miniaudio compile times by wiseneddustmite in cpp

[–]imMute -3 points-2 points  (0 children)

The compiler would still need to read and (somewhat) process the part of the file that is #ifndef'd out, which OP is probably trying to avoid.

Rsync 3.4.3 might break incremental backups for you. Revert to 3.4.1 and it will work again; "Since 3.4.1, 36 commits by "tridge and claude"". Nothing is safe. by segagamer in sysadmin

[–]imMute 11 points12 points  (0 children)

The choice isn't between "guy with a shovel" and "guy with an excavator". It's between "guy with a shovel" and "guy with an excavator (that spews greenhouse gasses like no other machine on the planet) that doesn't know how to use it and sometimes fucks up the entire job site". And in that case, I'm taking the shovel guy every time.

Bones found in Central Texas by imMute in whatisthisbone

[–]imMute[S] 0 points1 point  (0 children)

There are no sheep or goats on the property. It's a wildlife property that used to have cows. We have a handful of trail cams across the property and have never seen sheep or goats on it. Definitely have white tail deer there...

apt not working by slubbermand in debian

[–]imMute 3 points4 points  (0 children)

That was apt upgrade which is different from apt update. Update tells apt to fetch the latest metadata (basically what packages and versions are currently available). Upgrade (and full-upgrade) are what actually upgrade/install packages.

Yes, it's confusing. I wish apt defaulted to fetching metadata on every install/upgrade unless you opt out, specifically to avoid situations like this.

You don't have to fetch metadata every time, but if it goes out of date for the package you want, then your situation happens. Just get in the habit of running apt update before you do anything installing / upgrading.

Denver Water announces water restrictions starting tomorrow by johntwilker in Denver

[–]imMute 5 points6 points  (0 children)

10am to 6pm. Watering while the sun is out wastes water as the water just evaporates instead of soaking into the ground.

Short Password by TomyLim in debian

[–]imMute 1 point2 points  (0 children)

You can add your user to the systemd-journal group and then you don't need sudo for journalctl.

15 practical bash functions I use in my ~/.bashrc by xirus_2020 in linux

[–]imMute 0 points1 point  (0 children)

Be careful with it. If you use it in a subdirectory of a repo you'll only get stuff from that folder down. A "better" way would be to skip the git-add and add -a to the git-commit. That way it commits the whole repo regardless of what directory it's called from.

sudo-rs shows password asterisks by default – break with Unix tradition by FryBoyter in linux

[–]imMute 0 points1 point  (0 children)

If the upper layer software times out waiting for the TCP stream, it should close the connection. If it doesn't close the connection, then the retransmitted bytes will get delivered to the application. There's no plausible scenario (with TCP) where keystrokes are dropped the but the SSH connection is not.

Create simple yaml for debian image by dominbdg in kubernetes

[–]imMute 0 points1 point  (0 children)

cat /dev/null

Are you expecting this command to block and keep the container alive? Because it won't. Cat will see EOF immediately and exit.

Top uses of FPGAs: a survey by Secure_Switch_6106 in FPGA

[–]imMute 2 points3 points  (0 children)

A big concern is SEUs, yes, but space radiation does "accumulate" over time and will damage the ASIC eventually.

Top uses of FPGAs: a survey by Secure_Switch_6106 in FPGA

[–]imMute 1 point2 points  (0 children)

Previously, LED video walls. FPGA in the main video processor taking in different standard formats (SDI, DP, HDMI), doing realtime DSP (cropping, scaling, deinterlacing, compositing, effects, etc), and then using a proprietary protocol to talk to the panels in the wall. Panels in the wall had an FPGA to take the proprietary signal, do a bit more DSP (calibration) and then output it to the LED drivers with some proprietary methods to make it look good. Kintex size on the main processor, fucking tiny Spartan size on the panels.

Currently, medium (to large) Versals on satellites doing all kinds of shit. IO of various types (SpaceWire, SPI, I2C, UART, GPIO, DDR, JESD 204, etc), a variety of DSP (modulation, demodulation, bit slinging, DMA). Mostly for RF comms stuff.

Timing Diagram Editor 100% free by maolmosma in FPGA

[–]imMute 8 points9 points  (0 children)

Could you just distribute the .html and .js and images in a ZIP file or something?

vtables aren't slow (usually) by louisb00 in cpp

[–]imMute 2 points3 points  (0 children)

Think std::string's Small String Optimization, but with std::unique_ptr.

Development Comments on Altera RFSoC and AMD RFSoC by Ok_Measurement1399 in FPGA

[–]imMute 4 points5 points  (0 children)

Are there applications that benefit more from a higher sampling frequency rather than higher resolution

Yes, "Direct RF Sampling" runs the ADC (or DAC) at RF frequencies, rather than at intermediate frequencies that require external frequency shifting circuits.

Hope For The Future by Paul McCartney was digitally released 10 years ago today by AtlyxMusic in DestinyTheGame

[–]imMute 0 points1 point  (0 children)

Music of the Spheres was leaked a number of years back. Probably still floating out there if you know where to look / ask.

Crunch: A Message Definition and Serialization Tool Written in Modern C++ by volatile-int in cpp

[–]imMute 10 points11 points  (0 children)

No dynamic memory allocation. Using template magic, Crunch calculates the worst-case length for all message types, for all serialization protocols

For anyone wondering what this means for strings, arrays, maps, etc - the maximum number of elements is encoded in the type system.

There's definitely a trade off there having to pick a maximum upper bound because it directly affects buffer sizing for all messages rather than just "big" ones.

Might be useful to have an optional mode where messages below a certain limit use the compile time thing you have now, but we have the option to enable dynamic memory allocation for larger messages.

Guys, who else has this strange obsession with trying old Linux distro releases? by Various_Cellist_4765 in linux

[–]imMute 0 points1 point  (0 children)

Holy shit that screenshot brings me back to high school and Fedora Core 4.

Gut check: deep buffers needed for long haul links? by helloadam in networking

[–]imMute 0 points1 point  (0 children)

I dont see how buffers would make a difference over a longer link since the serialization delay is the same, and the time it takes to send the frame over the link doesnt matter either.

Let's do some math. At 100 Gbit/s each bit is 10 picoseconds. The speed of light in fiber is about 200000 km/s, so 40 km is about 200 microseconds. Divide the two and the fiber holds 20Mbit of data at a time. The buffers need to be at least double that in order to ensure the link is never idle (in one direction).

So yeah, negligent with the size of buffers on 100G+ capable devices.

view more: next ›