Worker Threads: segmentation fault

[TheRadioGuy]

Hello.

My Code

I run this code in Worker Threads.

Arch linux, node 10.5.0, latest sharp

[lovell]

https://nodejs.org/api/worker_threads.html#worker_threads_class_worker says:

"Native addons are not supported yet."

Worker threads are designed for CPU-intensive JavaScript so would be unlikely to help sharp/libvips, which is compiled C/C++, makes effective use of CPUs and is typically I/O bound.

http://sharp.pixelplumbing.com/en/stable/api-utility/#concurrency provides details of the concurrency and parallelism options available.

[TheRadioGuy]

So, sharp dont block event loop?

[lovell]

That's correct, all image processing already occurs on threads from the the libuv pool (plus threads spawned by libvips) - see http://sharp.pixelplumbing.com/en/stable/#fast

"Everything remains non-blocking thanks to libuv, no child processes are spawned and Promises/async/await are supported."