This tread was split off from another as it turned out to be (possible) bug related, so some comments may be out of context.
I did not think of this as a bug before, but now I’ll do some more testing to try to get some more symptoms clear before following Seth’s advise to open an issue on gitlab.
For some time now, I’ve been amazed at how few of the applications I use make use of multiple threads. (For example searching though a 1000+ page .PDF datasheets on a single thread).
So if anyone here knows something about general threading issues with Linux (Mint 20), please comment…
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Here a screenshot of what my PC does when I open the footprint editor.
It takes about 30 seconds to load the libaries and during that time one of the cores is maxed out, and the others are idling.
Apart from opening the Footprint Editor, KiCad works quite well on this old PC. I can even open and work with the A64-Olinuxino, which is a more complicated PCB then I’ll ever design myself.
My PC is a probably around 8 years old I5 with 4 cores / 8 threads, and KiCad’s libraries are on an SSD I bought in 2014. I do not know how this old PC compares to newer hardware, but from the CPU History it sure looks like loading the libraries could benefit from a bit of multi threadedness.
Weird thing though:
If I completely close KiCad, then restart and open the Footprint Editor again, then “all stuff” is read from Cache in Ram and the Footprint Editor starts in 2 or 3s. This only works if KiCad is started with the same project. If it’s started with another project, then there is again a 30s load time.
Version: 5.1.6-c6e7f7d~87~ubuntu20.04.1, release build
libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3
Platform: Linux 5.4.0-47-generic x86_64, 64 bit, Little endian, wxGTK
wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
OpenCASCADE Community Edition: 6.9.1
Compiler: GCC 9.3.0 with C++ ABI 1013