brigade

41 ms·

481.
by brigade 8y ago
NVIDIA labels each SIMD lane as a core, which is basically the same thing as claiming that Intel makes a 896-core CPU. Anyway, no matter how you define a "core", GPU core counts don't matter except when comparing different SK
482.
by brigade 8y ago
No, it had reduced throughput of AVX instructions while the ALUs powered up. Not a stall.
483.
by brigade 8y ago
Someone analyzed AVX512 performance on the elusive Lenovo laptop? Link! Also, source on the power up stall? AVX(2) didn’t have that and I’m highly surprised AVX512 would. Agner at least claims the same reduced throughput during warmup, but
484.
by brigade 8y ago
It might surprise you that /r/legaladvice's legal advice is worth all of the money you paid for it.
485.
by brigade 8y ago
Eh? Before Yosemite was released in 2014, one window could span between a 1x and 2x monitor. I forget if it was always rendered at 1x, or if it was rendered at 2x and scaled for the 1x, but yeah it looked like crap on one or the other. Actu
486.
by brigade 8y ago
Even ignoring chroma, video compressed at streaming bitrates is nowhere near the nyquist limit for a given resolution. In addition, YouTube generally encodes 4k at like 5-6x the bitrate of their 1080p encodes (codec for codec), rather than
487.
by brigade 8y ago
Tesla might not be advertising L5, but they're certainly claiming that Autopilot is safer than human drivers right now.
488.
by brigade 8y ago
In the US, there's no expectation of privacy in stuff you've discarded.
489.
by brigade 9y ago
Technically, ARMv8 has no such thing as "NEON"; it was renamed Advanced SIMD. Only in ARMv7 is it officially called NEON. But everyone sensible ignores a lot of the stupid names ARM uses in ARMv8 (AArch64/AArch32, A64/A3
490.
by brigade 9y ago
Of the streaming services that currently do 4k or HDR, only YouTube isn't using HEVC. Actually thinking about it again, I guess most 4k porn probably isn't HEVC, though for other reasons I suspect. But Netflix, Amazon, etc. all ke
491.
by brigade 9y ago
There isn’t really a video hosting site that doesnt do a lossy transcode of all uploads, unless you count Dropbox. The bitrate used to encode real-time captures is generally two or more times greater than the bitrate you want to distribut
492.
by brigade 9y ago
There's actually surprisingly little overtime claimed in Korea for all the >40 hour weeks being worked. The simple answer is that Korea (and Japan) have a cultural norm where showing dedication to your job/company by working lo
493.
by brigade 9y ago
Why do you feel that way? VPNs are vastly more likely to actually read your traffic than any ISP.
494.
by brigade 9y ago
Ignoring microcode, the instruction decoders can, per cycle, decode one of three patterns: 4 instructions that decode to a single µop 1 instruction that decodes to 2 µops and 2 instructions that decode to a single µop each 1
495.
by brigade 9y ago
A problem is that on Sandy Bridge+, these complex instructions can't decode in the same cycle as simple instructions, so using them can reduce instruction decode throughput.
496.
by brigade 9y ago
4:4:4 doesn’t mean twice the compressed bitrate, however. First, chroma residual already takes a minority of bits - luma residual and prediction info take way more bits and those are unchanged going to 4:4:4. Second, quantizing chroma more
497.
by brigade 9y ago
And it was under development all the back to 1993 or 1998 depending on your opinion. Including image codecs, PNG was 1996. For video codecs, Huffyuv was 2000. (Though to be fair lossless codecs are relatively easier to create, which is why
498.
by brigade 9y ago
Depends on what you mean by "just Moore's law." Certainly each standard was developed with a higher target decode complexity; H.264 and H.265 both targeted 2x greater than the previous standard, JVET is currently targeting 16
499.
by brigade 9y ago
Chinese call herbal teas “liang cha”; the argument that “herbal tea” should not be called tea is a somewhat modern English notion. Other languages freely use tea/cha for infusions of many plants. Heck, why not argue that any “tisane” n
500.
by brigade 9y ago
Slightly less: the iMac Pro uses the ~$100 AQC107 whereas the X99 motherboard chosen uses the more expensive X550AT2 because Aquantia only launched their chips this year. But yeah, the Xeon they chose is quite a bit slower than the 8-core X
501.
by brigade 9y ago
More like Phoronix doesn’t do any analysis of what they’re benchmarking and the general public quoting them can’t do that for them. Besides, syscalls have historically been slow on OS X; back when the kernel was 32-bit the kernel and user s
502.
by brigade 9y ago
If phones had active cooling and could thermally sustain a maximum CPU+GPU load for 40 minutes, they would discharge that fast or faster.
503.
by brigade 9y ago
From your links, gold/plat has a ~15% clock speed hit when using ymm muls, then another ~20% hit when going to zmm muls. So for 512-bit wide to not slow things down on Intel's chips, you need ~30% runtime of all cores to already
504.
by brigade 9y ago
For loudspeakers it's more complicated than a simple flat on-axis response; the dispersion into the room is critically important. Which in turn means that a flat frequency response curve is the wrong target for headphones designed to m
505.
by brigade 9y ago
Not between 2013-2016; there was a federal settlement that included the provision that merchants can add a surcharge for credit payments, overriding any merchant agreement. Which was recently thrown out on appeal, so that’s fun for any plac
506.
by brigade 9y ago
In Settings / Photos, there's an option to keep the original hevc/heif when transferring to PC/Mac.
507.
by brigade 9y ago
The opposite really; cash for clunkers mostly just moved existing demand forward a year without increasing it in even the medium term. Rather, it did put a lasting dent in the supply of used cars, artificially increasing used prices.
508.
by brigade 9y ago
Are you arguing that they do work on ELF+DWARF with sufficient extra debug info, when running under a debugger, despite documentation that explicitly says it doesn't work? Because I certainly don't expect my users to have a debu
509.
by brigade 9y ago
The "useless" instructions aren't for potential stack allocation, they're there so backtraces work. If you don't care about that then you can add -fomit-frame-pointer and they disappear. Compilers don't default
510.
by brigade 9y ago
Power/frequency scaling is quadratic since voltage can decrease with frequency, so even the 10% difference in base clocks could explain it, depending on where in the voltage/frequency curve they are. Plus, this is Intel's 3rd

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