Hacker News: Cold_Miserable

New comment by Cold_Miserable in "Investigating Split Locks on x86-64"

Cold_Miserable — Sat, 11 Apr 2026 07:51:57 +0000

It went from ~30ns to 2K ns but mostly timed out when I changed the alignment to +7.5 QWORDs on Golden Cove.

New comment by Cold_Miserable in "Endian wars and anti-portability: this again?"

Cold_Miserable — Mon, 06 Apr 2026 13:50:59 +0000

Small indian. Starting at zero and extending is logical. Big indian is dumb and confusing.

New comment by Cold_Miserable in "Everything old is new again: memory optimization"

Cold_Miserable — Sat, 28 Mar 2026 05:51:16 +0000

That's me. 1 byte ASCII is all that's needed for text.

New comment by Cold_Miserable in "The gold standard of optimization: A look under the hood of RollerCoaster Tycoon"

Cold_Miserable — Mon, 23 Mar 2026 03:55:11 +0000

shlx doesn't alter the flag register.

New comment by Cold_Miserable in "JPEG Compression"

Cold_Miserable — Wed, 18 Mar 2026 10:01:13 +0000

I found a jpeg2000 reference PDF somewhere. It may as well have been written in Mandarin. I got as far as extracting the width and height. Its much more advanced than jpeg. Forget about writing a decoder.

New comment by Cold_Miserable in "Generating All 32-Bit Primes (Part I)"

Cold_Miserable — Mon, 16 Mar 2026 02:22:18 +0000

Heh. 1.Create fast modulus quad M for dword D for the first 2000? 200000? (xM)D 2.Eliminate 0b,101b 3.Divide using vrcp14ss/vdivss with correction. Use fast square root too using rsqrt14.

New comment by Cold_Miserable in "Why No AI Games?"

Cold_Miserable — Tue, 03 Mar 2026 19:07:19 +0000

Distant Worlds I and now II has had full automation for ages.

New comment by Cold_Miserable in "US orders diplomats to fight data sovereignty initiatives"

Cold_Miserable — Wed, 25 Feb 2026 18:57:59 +0000

"Currency printing" and inflation are exactly the same thing.

New comment by Cold_Miserable in "AVX2 is slower than SSE2-4.x under Windows ARM emulation"

Cold_Miserable — Wed, 18 Feb 2026 18:39:11 +0000

AVX2 isn't really 256-bit. Its 2x128-bit.

New comment by Cold_Miserable in "Beginning fully autonomous operations with the 6th-generation Waymo driver"

Cold_Miserable — Thu, 12 Feb 2026 22:52:40 +0000

Human hearing is excellent. Good directional perception and sensitivity. Eyesight is the weakest sense. Poor color sensitivity, low light sensitivity, blindspot. The terrible natural design flaws are compensated by natural nystagmas and the brain filling in the blanks.

New comment by Cold_Miserable in "Gen Z first generation since 1800's with lower cognitive performance"

Cold_Miserable — Mon, 09 Feb 2026 18:46:51 +0000

Idiocracy is the future.

New comment by Cold_Miserable in "1 kilobyte is precisely 1000 bytes?"

Cold_Miserable — Wed, 04 Feb 2026 09:29:07 +0000

Its 1024. Hard drive manufacturers should be forced to use the correct metric.

New comment by Cold_Miserable in "xAI joins SpaceX"

Cold_Miserable — Tue, 03 Feb 2026 10:17:57 +0000

A really painfully laboured way of just saying conduction.

New comment by Cold_Miserable in "De-dollarization: Is the US dollar losing its dominance? (2025)"

Cold_Miserable — Wed, 21 Jan 2026 06:19:27 +0000

Britain should have stayed neutral like Sweden and Switzerland instead of getting economically devastated.

New comment by Cold_Miserable in "Conditions in the Intel 8087 floating-point chip's microcode"

Cold_Miserable — Tue, 20 Jan 2026 02:20:51 +0000

x87 should have been killed off. It would have forced lazy game developers to use SSE around the 2005 era.

New comment by Cold_Miserable in "Don't fall into the anti-AI hype"

Cold_Miserable — Mon, 12 Jan 2026 00:24:09 +0000

Its not hype. There's no such thing as AI. Matrix multiplication isn't intelligence.

New comment by Cold_Miserable in "Zmij: Faster floating point double-to-string conversion"

Cold_Miserable — Wed, 17 Dec 2025 22:28:12 +0000

Already done ages ago. Nothing more of interest.

The bottleneck are the 3 conditionals: - positive or negative - positive or negative exponent, x > 10.0 - correction for 1.xxxxx * 2^Y => fract(log10(2^Y)) 1.xxxxxxxx > 10.0

New comment by Cold_Miserable in "Windows 11 October 2025 Update Triggers Major Gaming Performance Regression"

Cold_Miserable — Wed, 03 Dec 2025 17:15:12 +0000

Baldur's Gate linux native build performed poorly on Gamers Nexus tests.

Where's a proper comparison between the fastest linux OS "CachyOS" and Windows 11 LTSC with all the crap removed, particularly the biggest offenders: Defender, Update, Edge, "fullscreen optimizations" and all the weird little services from print spooler to NPSV_xxx "now playing service" ?

New comment by Cold_Miserable in "Memtest86+ v8.00 Released"

Cold_Miserable — Wed, 03 Dec 2025 16:24:20 +0000

Testmem5 is in a league of its own yet its unclear how. Maybe the AWE table is prone to corruption. Theres nothing special about the internal workings. It doesn't use fences or clflushes.

New comment by Cold_Miserable in "Brexit reduced UK GDP by 6-8%, investments by 12-18% [pdf]"

Cold_Miserable — Sat, 15 Nov 2025 05:23:14 +0000

HDI, electrical generation per capita, energy use per capita.