0xQSL
Joined 9 years ago
Karma
164
Submissions
20
Member since
Jun 7
Recent submissions
Comment · 1 year ago
Comment · 1 year ago
There's "disable key expiry" per machine in the tailscale admin panel
Comment · 1 year ago
less than 5 seconds to respond to d2d4 on apple a18 pro
Comment · 2 years ago
I'm not so sure about memory actually being the bottleneck for these 8 core parts.
If memory bandwidth is the bottleneck this should show up in benchmarks with higher dram clocks. I can't find any good application benchmarks, but computerbase.de did it for gaming with 7800MHz vs 6000MHz and didn't find much of a difference [1]
The apple chips are APUs and need a lot of their memory bandwidth for the gpu. Are there any good resources on how much of this bandwidth is actually used in common cpu workloads? Can the CPU even max out half of the 512bit bus?
[1] https://www.computerbase.de/artikel/prozessoren/amd-ryzen-7-...
Comment · 2 years ago
Primary energy consumption isn't a good indicator for this, as it also includes lost energy.
If you replace a 50% efficiency coal power plant with wind or solar you'd reduce the primary energy by half but could still get the same amount of used electricity.
Comment · 3 years ago
Nice improvements! I'd be interested to see how much overhead tailscales magicsock adds and what a flamegraph after the change looks like. Mostly crypto or still a lot of networking syscall time?
Comment · 3 years ago
Would it be an option to use io-uring to further recuce syscall overhead? Perhaps there's also a way to do zerocopy?
Comment · 4 years ago
I was planning to build something similar with esp32 until i found the emporia.
It's a bit of a hassle to install (don't think anything can be done about that) and I didn't really like the official ui, but it works great with home assistant / esphome. [0]
[0] https://gist.github.com/flaviut/93a1212c7b165c7674693a45ad52...
Comment · 4 years ago
One might be able to calibrate this by using cars in the area close to the shot [1]. Assuming most cars are driving at the speed limit
[1] https://www.google.com/maps/place/38%C2%B059'37.1%22N+93%C2%...
Comment · 5 years ago
There are small bulges on the bottles which get worn away and allow making a rough estimate of uses. The german wikipedia link above has a a little bit more detailed explanation
Comment · 5 years ago
With a heat pump you'd get about 3x the heat for the same amount of power
Comment · 7 years ago
There are some benchmarks of mitigation impact on Phoronix [1]. These benchmarks are only for mitigation sensitive workloads so real world impact will be lower.
[1] https://www.phoronix.com/scan.php?page=article&item=amd-zen2...
Comment · 7 years ago
You can't really compare TDP and turbo clocks between AMD and Intel. [1]
The 9900k draws 168W at full load and is also specified for 95W TDP. This chip is likely going to use more. A 3900X draws 142W for comparison. (12 cores lower clocks 7nm)
[1] https://www.anandtech.com/show/14605/the-and-ryzen-3700x-390...
They haven't found the setting for mobile yet, so I might just stop using desktop teams.