Viewing profile — jeffffff

y'all still write shell commands manually?

porsche is part of volkswagen, so it's not that surprising that they're decently reliable. i probably see 10 porsches for every ferrari, lamborghini, etc that i see, and i think a …

Compilation error

don't forget to fsync the file before the rename! and you also need to fsync the directory after the rename!

> None of the things people care about really get much out of "unified memory". GPUs need a lot of memory bandwidth, but CPUs generally don't and it's rare to find something which …

it's kind of dumb that postgres uses a nested loop join instead of a hash join there. hash join almost always has the best worst-case behavior, and without stats it should be the d…

we're not really close, for two reasons: 1) programming takes a long time, and it only makes sense to take the time to do it if you're making a bunch of copies of something. this i…

i'm a hobbyist woodworker with more money than time. i have a pretty basic 3-axis cnc and i thought it would save me time, but it really doesn't. the only thing i actually use it f…

Speaking of Indeed, the first employee ( https://en.wikipedia.org/wiki/Chris_Lamprecht ) was a felon and a great engineer

shouldn't have any effect, the new amd hardware is zen 4 and this only affects zen 2

JIT compilation has the opportunity to do profile-guided optimization at runtime. JIT compilation is also simpler when distributing an application to non-identical servers, as it c…

take a look at http://nms.csail.mit.edu/~stavros/pubs/OLTP_sigmod08.pdf - the overhead of coordinating multiple writers often makes multi-writer databases slower than single-writer…

there are only a handful of instructions that do interesting things beyond parallel versions of basic arithmetic and bitwise operations. https://branchfree.org/2019/05/29/why-ice-l…

AVX and AVX2 are pretty awful because of lane-crossing limitations, but AVX512 is actually really nice and feels like a real programmer designed it rather than an electrical engine…

one thing that is missing from this document is that there are a limited number of line fill buffers in the L1 cache of each core, which limits the number of concurrent memory acce…

i have jenn air appliances and tried to connect to my dishwasher solely because i was curious as to why anyone would want their dishwasher to be connected to the internet. i could …

you'd have to block california too because CCPA is essentially the same thing

the "if constexpr" makes sure the checks only happen in debug mode. you'd definitely want to turn the checks off for release builds.

of course the standard allows implementations to "behave during translation or program execution in a documented manner characteristic of the environment" if you do something that …

i think you could actually do that in C++ as a library with a bit of metaprogramming. the arithmetic operations will get weird though unless everything is the same type, for exampl…

torstenvl is correct. UB is UB whether you are in debug mode or release mode. making it UB for it to store a negative value doesn't make sense. you could put debug checks for it be…

the one about unsigned integers with one bit missing would be trivial to implement as a library in C++ with no significant downside. all you have to do is make a class wrapping a s…

most people who are hesitant to update are hesitant because they've been burned in the past. apple has a history of making phones unusably slow with updates and breaking 3rd party …

well i tried. i wish you the best of luck in your continued ignorance.