this post was submitted on 01 Feb 2025
200 points (100.0% liked)
TechTakes
1604 readers
123 users here now
Big brain tech dude got yet another clueless take over at HackerNews etc? Here's the place to vent. Orange site, VC foolishness, all welcome.
This is not debate club. Unless it’s amusing debate.
For actually-good tech, you want our NotAwfulTech community
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I have have crafted assembly instructions and have made it faster than the same C code.
Particular to if statements, C will do things push and pull values from the stack which takes a small but occasionally noticeable amount of cycles.
holy fuck. llvm in shambles
Meanwhile I'm reverse engineering some very much not performance sensitive video game binary patcher program some guy made a decade ago and Ghidra interprets a string splitting function as a no-op because MSVC decided calling conventions are a spook and made up a new one at link time. And it was right to do that.
EDIT: Also me looking for audio data from another old video game, patiently waiting for my program to take about half an hour on my laptop every time I run it. Then I remember to add
--release
tocargo run
and while the compilation takes three seconds longer, the runtime shrinks to about ten seconds. I wonder if the above guy ever tried adding-O2
to hisCFLAGS
?til if I wanted the program to go faster I should've just been asking it to switch its runtime
if you use TeX as much as i do, you learn that "begging the program to behave differently" is pretty viable