Florian Engelhardt

RE: @flowcontrol@phpc.social

Not only can it return earlier, it can also return later.
Technically, `sleep()` tells the kernel “don’t schedule me until at least X time has passed”. The kernel puts the task into an interruptible sleep state and removes it from the run queue. A timer expiry marks it runnable again, and then the scheduler will run it when it gets CPU time, which can be a bit later depending on load and priority. It can also wake early if a signal interrupts the sleep.

New year*, new parallel release:
v1.2.11 just landed with stability fixes 🎉

https://github.com/krakjoe/parallel/releases/tag/v1.2.11

* right on time for the Chinese New Year 🔥🐴

#PHP poll: is `sleep(5)` guaranteed to sleep at least 5 seconds?

RE: @itworldcup@hachyderm.io

Hey PHP folks, we got another 1 hour and 40 minutes to find 167 votes.
GO PHP 🎉

I’m heading to @ConFooCa@techhub.social 2026 in Montréal 🇨🇦 in a few weeks, where I’ll be speaking about two things I care a lot about in the PHP world: observability and multithreading.

If you’re going too, let’s connect! Always happy to chat observability, profilers, and real-world performance wins in PHP 🎉

#ConFoo #PHP #Observability #Performance #Multithreading