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diarmuidc

219 karma · joined October 25, 2018

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diarmuidc··on From zero to a RAG system: successes and failures
>After several weeks, between 2 and 3, the indexing process finished without failures. ... we could finally shut down the virtual machine. The cost was 184 euros on Hetzner, not cheap.

184euro is loose change after spending 3 man weeks working on the process!

diarmuidc··on The Limits of NTP Accuracy on Linux
Why is there no mention of PTP here? If you want accurate time synchronisation in a network just use the correct tool, https://en.wikipedia.org/wiki/Precision_Time_Protocol

Linux PTP (https://linuxptp.sourceforge.net/) and hardware timestamping in the network card will get you in the sub 100ns range

diarmuidc··on Elon Musk just escalated his war on workers
A clear ad hominem
diarmuidc··on Geopolitics in a hotter world (2010)
The talk was from 2010
diarmuidc··on Find out where you can afford to buy or rent in Great Britain
Yeah there is a solution. Build more housing. It's a political issue and nothing more
diarmuidc··on De-dollarization is happening at a ‘stunning’ pace
No. That's not what the "British" mean.
diarmuidc··on De-dollarization is happening at a ‘stunning’ pace
dry Irish humour ;)
diarmuidc··on AMD Announces 7950X3D, 7900X3D Upto 128MB L3 Cache
There are SOCs available with the DRAM on top already. eg https://www.microchip.com/en-us/products/microcontrollers-an...
diarmuidc··on The $8 Linux Computer
That's 2 weeks time
diarmuidc··on Mandatory helmet laws make cyclists less safe
I suspect people don't like comparing with the Netherlands because it doesn't support their biases in this argument
diarmuidc··on Mandatory helmet laws make cyclists less safe
So all drivers should be required to wear a helmet? If not, why not ?
diarmuidc··on Mandatory helmet laws make cyclists less safe
That's a fallacious argument. There is no activity that could not be made more safe by wearing a helmet. Yet we don't because the arguments like yours are simple and wrong.
diarmuidc··on Mandatory helmet laws make cyclists less safe
That experiment has been tried and failed already in Australia.
diarmuidc··on Are Modern Bicycles the End of DIY Maintenance?
Why would you compare disc brakes to cars? Why not compare them to the rim brakes they are replacing. An order of magnitude more complicated to maintain
diarmuidc··on Things people blamed on bicycles
No it's not irrelevant. If helmet wearing is linked to higher per capita head injuries, mandatory helmet wearing should be discouraged.
diarmuidc··on Busting the 10x software engineer myth
Doesn't really bust the myth, though does it? Just says that the 10x engineer is a sign that the company may be in trouble, depending too heavily in such engineers. From 25 years in electronic engineering, I guarantee that there are some engineers that are 5x or 10x others.
diarmuidc··on Uptime Lab's CM4 Blade Adds NVMe, TPM 2.0 to Raspberry Pi
"The board gets fairly warm, likely due to the overhead of the PoE+ power conversion (which consumes 6-7W on its own!"

7 W of losses? That's either wrong or insane for DC/DC regulation. Rough figures, pi4CM (5W) + NVMe (2W) = 7W. So regulation of 50% efficiency?

diarmuidc··on Open-source soft-core RISC-V SoC with gdb support
Microsemi have the PolarFireSOC which has 4x RISC-V hard cores in the FPGA. I have an eval board on my desk
diarmuidc··on Improving ventilation will help curb SARS-CoV-2
It's not even remotely raging
diarmuidc··on Glacial – Microcoded RISC-V core designed for low FPGA resource utilization
How big is your CPU. I develop on Microsemi and the PolarFire range should do it. 12G transcievers and a decent amount of logic. At about €200+. And considering Microsemi are usually behind the curve, Xilinx and Altera must have similar https://www.microsemi.com/product-directory/fpgas/3854-polar...
diarmuidc··on Designing a RISC-V CPU, Part 1: Learning hardware design as a software engineer
Migen looks good but avoiding HDLs while trying to learn hardware design is not the best learning approach. They might be ugly languages but the do force your to think in hardware and gates.
diarmuidc··on Update on an Employee Matter
Here's a literal Nazi rioter. https://www.nbcnews.com/news/us-news/man-camp-auschwitz-shir...
diarmuidc··on More than 73% of American adults are overweight or obese
Maybe eating out every day isn't the best idea.
diarmuidc··on More than 73% of American adults are overweight or obese
A professional athlete doesn't need a simple metric to understand if he's at his ideal weight. It's part of his job. The general public do need a simple metric which covers 95% of the population. BMI is that.
diarmuidc··on WiFi 6 gets 1.34 Gbps on the Raspberry Pi CM4
That's not the networking performance though. RP4 can hit line speed on Gb Ethernet: pi@kodi:~ $ cat /proc/cpuinfo | grep Rasp Model : Raspberry Pi 4 Model B Rev 1.1 pi@kodi:~ $ uname -a Linux kodi 5.4.72-v7l+ #1356 SMP Thu Oct 22 13:57:51 BST 2020 armv7l GNU/Linux pi@kodi:~ $ iperf -c 192.168.0.39 ------------------------------------------------------------ Client connecting to 192.168.0.39, TCP port 5001 TCP window size: 214 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.0.214 port 44960 connected with 192.168.0.39 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 1.04 GBytes 891 Mbits/sec
diarmuidc··on The Heart of RISC-V Development Is Unmatched
FPGA is definitely my number one requirement, that's why I have it
diarmuidc··on The Heart of RISC-V Development Is Unmatched
I've a PolarFire SOC eval board on my desk at the moment. 4x U54 cores. Only started to play with it but lots of kernel panics so far. Not sure where the issue is just yet but hopefully it'll get more stable over the next year
diarmuidc··on I used the internet to painlessly relearn a foreign language
Playing devils advocate, if you were able to learn your native language with out an understanding of the grammar, why can't you learn a foreign language?
diarmuidc··on The worst tool for the job
Sure but you have to use it long enough for the stings to get loose. What percentage of tennis racket purchases are used more than once?
diarmuidc··on Ask HN: Career and life advice for a 30yo
All jobs will have downsides, I guess you just want to find one where you can live with the downsides and the upsides far out weight them. For me, I moved between a number of unfulfilling roles until I ended up in my current position.

The tech is pretty conservative and tame but projects are small, the scope is broad and the flexibility to be creative in the implementation is high. The industry is a real niche and the company of a "nice" size (100-200). I like this space as you have more room to bring your own solutions to the table. The weight of a massive process and procedure is not there which helps

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