I recently upgraded from 42.3 to tumbleweed and found some FPGA synthesize jobs (using Altera/Intel Quartus 17.1) which I run regularly had slowed down significantly. To identify the problem, I did some tests and freshly installed 42.3 from the image, then updated to latest 42.3, then upgraded to 15.0. Here the results:
All on the same HW (Zotac Box / Intel Core I3), with plenty of RAM (16 GB), and I also tried to boot with pti=off to avoid Spectre/Meltdown bugfixes - did not help. Furthermore, the problem is not related to the Altera SW, Xilinx Vivado shows similar results.
What did happen there? I’ve been using SUSE since 1994 but never experienced something like that. Did people forget the compile optimizations when building shared libraries? Or do newer kernels load CPU-FW related to spectre and meltdown bugs that are slowing down the system by 60% ? It feels like working on my old laptop from 10 years ago.>:(
I have no idea - I don’t use such software. Like Gerry also mentioned, I haven’t been impacted, but I’m not doing anything beyond basic desktop tasks. Maybe you could start by seeking support from Altera.
Agreed that your likely best first steps to addressing your problem is to gather more information, specifically whether others running your combination of kernel and software are experiencing the same slowdown.
That means trying to contact others through common methods like
Software community support like forums, mail lists, IRC
Social communities like Reddit
We here in the openSUSE forums probably are too general purpose and not specific to the software you’re running.