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RachelF

6,354 karma · joined February 9, 2012

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RachelF··on Apple M3 Ultra
I'd guess that they inherited it from the iPhone chips. It was nice and fast and also makes Apple a lot of profit as no third party RAM is possible.
RachelF··on Zentool – AMD Zen Microcode Manipulation Utility
Yikes! One would have expected a little more code review or a design review from a hardware manufacturer, especially of security system. A system that people have been worried about since the Pentium FDIV bug.

I guess this one just slipped through the cracks?

RachelF··on Apple M3 Ultra
Some possible groups of reasons: 1. Until recently RAM amount was something the end user liked to configure, so little market demand. 2. Technically, building such a large system on a chip or collection of chiplets was not possible. 3. RAM speed wasn't a bottleneck for most tasks, it was IO or CPU. LLMs changed this.
RachelF··on Launch HN: Enhanced Radar (YC W25) – A safety net for air traffic control
Thank you for the detailed reply. Your first product sounds like something that is needed. I wish your startup very good luck and will be watching your progress.

Do ground vehicles also have GPS trackers with a radio transmitter, or do they just use normal ADS-B?

RachelF··on Launch HN: Enhanced Radar (YC W25) – A safety net for air traffic control
I have two questions:

1. Good overview of the technologies you are using, but what product are you planning on building or have built? I understand what you are doing and it's "extra safety over existing systems" but how does it work for the end user? Is the end user an ATC or a pilot?

2. You will find that introducing new systems into this very conservative field is hard. I've built avionics and ATC electronics. The problem isn't normally technology, it's the paperwork. How do you plan on handling this?

RachelF··on Why it's so hard to build a jet engine
Many years ago, I worked for what would now be called a startup building small gas turbines. The turbine was impressive, 400hp in something the size of 2 shoe boxes. However, it spun at 120,000rpm, which meant either a very heavy gearbox or electrical generator had to be connected to it.

High rpms, noise and the difficulty in adjusting the power output quickly, killed the project.

RachelF··on Spotify's Beta Used 'Pirate' MP3 Files, Some from Pirate Bay (2017)
Even established companies use pirated software.

The sounds in Windows XP were created in a pirated version of Sony SoundForge, and were only detected because of the metadata in the .wav files.

I guess companies can get "too big to sue".

RachelF··on Outlook classic dropped from Microsoft 365
Thunderbird does what it says on the box. It just works. It can also now talk to Exchange servers.
RachelF··on WhiteSur: macOS-like theme for GTK desktops
Yeah, Apple will likely have this taken down. They have done so to similar "look and feel" projects in the past.
RachelF··on OpenBSD Innovations
Get a Mac laptop. OS X is based on BSD.
RachelF··on File Pilot: A file explorer built for speed with a modern, robust interface
Double commander?
RachelF··on Sony FX-300 Jackal: A technological marvel of the late 70s (2021)
Back in the 1970's the quality of Japanese goods had just increased tremendously with a huge nationwide quality drive.

These things were built to last.

RachelF··on Plane crashes, overturns during landing at Toronto airport
It also looks like a wing has been ripped off. That passengers could survive an accident involving so much force is surprising.
RachelF··on All Kindles can now be jailbroken
Not just enshittification in the way of spying and ads. The actual reading experience has got worse.

I have a Kindle 11 and an old Kindle 3. The Kindle 3 actually works better - easier to read, no random pauses, easier to search.

RachelF··on All Kindles can now be jailbroken
Yes, KOReader is the reason to jailbreak a Kindle.

It's way better than the built-in Amazon reader app.

RachelF··on Fewer students are enrolling in doctoral degrees
From my experience, 40 years ago PhD used to be hard to do and meant that the person who had it was smart. These days the only thing it indicates is that the person spent many years at university.
RachelF··on Nvidia Security Team: “What if we just stopped using C?” (2022)
They actually had to use the non-cutdown version of SPARK that this company sells, called SPARK Pro.
RachelF··on The average CPU performance of PCs and notebooks fell for the first time
I wonder why? Some possibilities:

1. Extra silicon area being used by NPUs and TPUs instead of extra performance?

2. Passmark runs under Windows, which is probably using increasing overhead with newer versions?

3. Fixes for speculative execution vulnerabilities?

4. Most computers are now "fast enough" for the average user, no need to buy top end.

5. Intel's new CPUs are slower than the old ones

RachelF··on Backblaze Drive Stats for 2024
...and many used Seagate drives have been resold as new in the last 3 years. They were used for crypto mining and then had their SMART parameters wiped back to "new" 0 hours usage.

https://www.heise.de/en/news/Hard-disk-fraud-Increasing-evid...

RachelF··on Intel's Battlemage Architecture
True, but it is mostly profit - GDDR6 sells for $2.30 a gigabyte [1]

[1]https://www.dramexchange.com

RachelF··on Intel's Battlemage Architecture
AMD and Intel copy Nvidia's VRAM lead.

The RTX 1060 came with 6GB of VRAM. Four generations later, the 5060 comes with only 2GB more.

I suspect NVidia does not want consumer cards to eat into those lucrative data centre profits?

The cost of 1GB of VRAM is $2.30 see https://www.dramexchange.com

RachelF··on I tasted Honda’s spicy rodent-repelling tape and I will do it again (2021)
>birds have no receptors for capsaicin, while mammals do.

True. I suspect it is only placental mammals. Brush-tailed possums (a marsupial mammal) do not seem repelled by it at all. I've had my birds eyes and Carolina Reaper chilly plants and fruit eaten by them.

RachelF··on Colossus, the first large-scale electronic computer
The British and GCHQ kept the stuff secret for ~30 years. They kept it secret from the public only, the Americans knew, and the place was riddled with Soviet spies.

GCHQ also had invented the RSA algorithm before Rivest et al but kept it quiet.

RachelF··on Microsoft deletes official Windows 11 CPU/TPM bypass for unsupported PCs
I wonder how many hundreds of millions of Windows 10 machines are going to become e-waste because of Windows 11's TPM requirements?
RachelF··on AMD: Microcode Signature Verification Vulnerability
Will the OS fix the microcode, or will a BIOS flash be required?
RachelF··on ScatterBrain: Unmasking the shadow of PoisonPlug's obfuscator
Yes, this in an interesting question. Are they just trying to hide from anti-virus signatures, or are they hiding code they perceive as valuable?
RachelF··on TCAS Avoided Collision with Army Helicopter over Potomac River [video]
Sounds like a political decision - closing the gate after the horse has bolted.
RachelF··on Google offering 'voluntary exit' for employees working on Pixel, Android
The last 3 Pixel designs have been uninspired. The CPUs in them have also been disappointing.

It's almost as if Google doesn't really care anymore.

RachelF··on Analysis of Product Hunt products from 2014 to 2021
Interesting to see from the graphs that Windows software is the fastest falling category.
RachelF··on Seagate: 'new' hard drives used for tens of thousands of hours
Ebay and, to a lessor extent, Amazon, have many vendors selling "new" Seagate HDDs that are actually refurbished. The SMART data is just reflashed to zero.

There is speculation that these are ex-Chinese drives from crypto currencies that used "proof-of-storage" mining like Chia coin.

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