wtallis

39 ms·

841.
by wtallis 2y ago
There aren't a lot of phones that have air vents, except for the ones that also have fans. Convection doesn't work at those sizes and power levels. Thermal design for phones is all about conduction, getting the heat out to the sur
842.
by wtallis 2y ago
The HP ZBook Ultra is using DRAM parts rated for 8533MT/s but only operating at 8000MT/s, because 8000MT/s is the most the processor is rated for, but the memory manufacturers don't make parts with that non-stamdard spee
843.
by wtallis 2y ago
Double check your memory bandwidth numbers. AMD's Strix Halo is 256 bits at 8000MT/s for about 238GB/s while NVIDIA's GB10 is 276GB/s (likely 256 bits at the more standard speed of 8533MT/s).
844.
by wtallis 2y ago
That's not really an extreme amount of bandwidth. DDR4-2933 was mainstream five years ago, and at that speed the two channels consumer CPUs are equipped with adds up to 47 GB/s.
845.
by wtallis 2y ago
You can't quite treat each lane as an independent serial channel; DRAM chips are at least 8 bits wide, and this GPU needs to either connect 16 bits to each die or connect groups of 32 bits to two dies, and the DRAM die does want to g
846.
by wtallis 2y ago
The disk you boot from cannot use a non-standard format, at least not for the entire disk.
847.
by wtallis 2y ago
Might need to go through the NVMe consortium rather than SFF/SNIA. Consumer drives aren't really following any SFF standards these days, but they are still implementing non-optional NVMe features so they can claim compliance with
848.
by wtallis 2y ago
I feel like you're trying to get into an argument about which filesystem is better, rather than simply acknowledge that ZFS doesn't actually solve the problem under discussion.
849.
by wtallis 2y ago
Re-writing data from the host system is quite wasteful of a drive's write endurance. It probably shouldn't be done more often than once a year. Reading the data and letting the drive decide if it needs to be rewritten should be do
850.
by wtallis 2y ago
ZFS was never going to have good support for adding and removing drives of arbitrary size. It's a filesystem for people who buy their drives by the dozen.
851.
by wtallis 2y ago
Powering on the SSD does nothing. There is no mechanism for passively recharging a NAND flash memory cell. You need to actually read the data, forcing it to go through the SSD's error correction pipeline so it has a chance to notice a
852.
by wtallis 2y ago
> Local file systems with strong integrity checks and seamless replication onto attached storage should be so basic that people can just assume it’ll work without them having to spend time on it. What you're asking for is basically
853.
by wtallis 2y ago
Nobody needs to worry about storage density in the sense of how much shelf space you need for cold storage. Tape, NAND flash, and even high-capacity hard drives are all dense enough that the incremental cost of more shelf space is not the m
854.
by wtallis 2y ago
SSDs get this cheap exactly by sacrificing excess performance and endurance. You can get some of that back by treating your 2TB drive as a 1.5TB drive. For most people, the tradeoffs chosen by the manufacturer make more sense.
855.
by wtallis 2y ago
> Also, you can probably just strap a wifi-capable relay to power pins on your motherboard. That's a lot more work than just buying a different KVM that already exposes its spare GPIO pins for exactly that purpose. There are plenty
856.
by wtallis 2y ago
There's also the class of devices that includes PiKVM, where it's HDMI-to-MIPI for the video capture, and everything else is standard Raspberry Pi capabilities (Ethernet, WiFi, USB host and device, GPIO for motherboard power/
857.
by wtallis 2y ago
The article repeatedly describes clock frequencies that drift further out of spec as the systems age. That's failing hardware.
858.
by wtallis 2y ago
I think it only survives because it's so thoroughly overlooked. Probably nobody working on a new messaging/chat/VoIP/video conference/etc. platform within Google wants to nominate Google Voice as the thing they&#x27
859.
by wtallis 2y ago
It takes more than one click just to get to the right settings page, and there are numerous anti-features scattered across several settings pages. Cleaning up Edge is way more than one click.
860.
by wtallis 2y ago
Graphics cards have finally converged on all using about the same small size for the PCB. The only thing varying is the size of the heatsink, and due to the inappropriate nature of the current legacy form factor (which was optimized for lar
861.
by wtallis 2y ago
Their compatibility page calls out which car models will lose their built-in advanced safety features (such as automatic emergency braking) when using comma, and whether comma replaces the built-in adaptive cruise control. Their FAQ include
862.
by wtallis 2y ago
> Eigendecomposition of the covariance matrix, essentially PCA, is probably the first non-trivial step in the analysis of any dataset For a sufficiently narrow definition of "dataset", perhaps. I don't think it's the
863.
by wtallis 2y ago
Aren't you missing the entire point of exploratory data analysis? Eigenfaces are an example of what you can come up with as the end product of your data exploration, after you've tried many ways of looking at the data and determin
864.
by wtallis 2y ago
IOT devices (including printers) get firewalled to have no access outside my LAN, and I don't let my PCs run the kind of software that would fetch a firmware update and push it to another device without prompting me. The first line of
865.
by wtallis 2y ago
> since SPTM is not used according to Apple documentation: Try reading that footnote again: > Note 2: Page Protection Layer (PPL) and Secure Page Table Monitor (SPTM) enforce the execution of signed and trusted code on all platforms
866.
by wtallis 2y ago
They did use UEFI back then, but the BIOS CSM was on by default so it was pretty easy to accidentally end up taking the legacy boot path.
867.
by wtallis 2y ago
> Nowadays you can even get better performing miniPCs for half the price than your MacBook Air M3 This is a stupid comparison: even a Mac mini pretty much fulfills this, since the M4 is a step up from the M3 and the actively-cooled mini
868.
by wtallis 2y ago
CPUs don't have non-volatile storage for microcode updates; it gets uploaded on boot from a copy stored alongside the other firmware in a flash chip on the motherboard, or optionally later in the boot process when an OS loads a microco
869.
by wtallis 2y ago
> but chip lithography errors (thus, yields) at the huge memory density might be partially driving up the cost for huge memory. Apple's not having TSMC fab a massive die full of memory. They're buying a bunch of small dies of c
870.
by wtallis 2y ago
I like how the table of suffixes hasn't been updated to add "V" but the section on Core Ultra uses 288V as an example. The document's too big to stay in sync with itself.

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