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inflation / jpegxl-rs

GNU General Public License v3.0
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Building with vendored is extremely slow #17

Closed Kl4rry closed 1 year ago

Kl4rry commented 1 year ago

I tried building the library with the vendored flag on a cpu with 32 threads and the building of the sys crate is not even using a single whole thread. Should it not use more threads as the CMAKE_BUILD_PARALLEL_LEVEL is set to the number of CPU threads? I don't know how long it actually takes to build it but it is atleast 30 minutes.

cpu: ryzen 5950x os: windows

inflation commented 1 year ago

I have set CMAKE_BUILD_PARALLEL_LEVEL to std::thread::available_parallelism() when building. And I can confirm it works on Linux and macOS. Maybe something wrong about Windows? Have you tried to build libjxl itself?

Kl4rry commented 1 year ago

I tried hard coding the core count to 32 but it made no difference. I even let it compile for multiple hours and it did not finish. There is something very weird going on with windows compilation. I am going to try to compile just libjxl when i get time.

inflation commented 1 year ago

I tried hard coding the core count to 32 but it made no difference. I even let it compile for multiple hours and it did not finish. There is something very weird going on with windows compilation. I am going to try to compile just libjxl when i get time.

Yes, someone said it hangs on Windows in the other issue.