zootz

present day present time

[zootz @weblwabl]

@TheDumbTechGuy Modern software development in a nutshell.

[zootz @weblwabl]

@BenjDicken I’ve always thought systems performance was more of a reference than a book to read cover to cover? Is that the case? Or am I horribly mistaken and I should read it 😭

[zootz @weblwabl]

@beffjezos Nightmare blunt rotation

[zootz @weblwabl]

@massimo_san @Adriksh It’s not just files though, it’s anything that has a file descriptor associated with it which can include sockets too. Generally databases especially high frequency analytics databases can easily run in to this.

[zootz @weblwabl]

@TrisH0x2A Also if you’re doing direct io you should open files with the O_DIRECT and O_SYNC flag. Since you’re not fsyncing something like this is not guaranteed to write to disk.

[zootz @weblwabl]

@TrisH0x2A Generally syscalls are expensive due to the user to kernel space context switch. This is why something like io_uring tends to perform well, you batch syscalls before switching from user to kernel space. Not only that it has zero copy buffers.

[zootz @weblwabl]

@0xSero New edition of Designing Data Intensive Applications and Database Internals.

[zootz @weblwabl]

@buggirl Marc Andreessen if you smooth down his head a bit

[zootz @weblwabl]

@_TylerHillery I recently started working through Math Academy as well for the past two weeks. It’s been really helpful. I love the leveling system 😆

[zootz @weblwabl]

@sudo_goreng If you want to deep dive in to LSM compaction (definitely relevant to RocksDB). This is an excellent survey paper on the topic: https://t.co/eMFldAImuM

[zootz @weblwabl]

@johncrickett Database Internals and Designing Data Intensive Applications are two of my favorites I’ve read in the past. Right now I’m reading through Understanding Deep Learning.

[zootz @weblwabl]

@GeoffreyHuntley I’ve been thinking about checking out ocaml for some time, I noticed that Jane Street has a “learn ocaml” repository, but it’s several years old: https://t.co/rM5TIALsRN I was thinking about going through it but I wonder if there are better options.

[zootz @weblwabl]

@_trish_xD Reading OSTEP is generally a good starting point.

[zootz @weblwabl]

@blind_via @suyogvyawahare I’d join a software people interested in hardware discord.

[zootz @weblwabl]

@josephdviviano Is Claude okay 😭

[zootz @weblwabl]

@trashh_dev “Take a step back, think through some things, and then come back to your keyboard. Ping me when you’re ready for re-review.”

[zootz @weblwabl]

@claudeai Why wouldn’t I just have claude code run ‘gh pr diff <pull request #>’ locally? This seems like a dud idea when I already have the tooling to do it.

[zootz @weblwabl]

@lcamtuf I tend to use https://t.co/IcfdJempiW when I want follow up questions from Claude. Most recently used it while learning about gradient descent. I also will often go out of my way to ensure Claude does not explicitly solve problems for me but instead act like a fancy rubber ducky.

[zootz @weblwabl]

@KatanaLarp Many people are highlighting that as a follow up you can use the models to improve performance. This is true. But also, I think that once a code base gets to a specific complexity it is very tedious to drive performance gains via targeted prompts and profiling. Great read!

[zootz @weblwabl]

@vivekgalatage One of my favorite SIMD examples:

AVX512 meatgrinder.

Reference: https://t.co/sCri8kLIv9