From: cdurrhau@zedat.fu-berlin.de   
      
   Hi,   
      
   i would like to get a fresh view on my topic.   
      
   The awkward behavior on an Ivy Bridge-based machine (stable operation, no   
   question) is that a few of the hardware components perform differently across   
   reboots. And not reliably or after a pattern, at least not one that i was able   
   to find, but in probably 5 out 15 reboots. That's a digital video recorder and   
   it certainly does not need to be exchanged.   
      
   There is a NVMe 1.3 SSD in a PCIe 4.0 card in a PCIe 3.0 x4 slot (Samsung 990   
   Pro).   
   There is a Realtek 8125B 2,5Gbe network card (PCIe 2.0 x1) in a PCIe 2.0 x1   
   slot.   
   Ubuntu 22.04.4 current (kernel 5.15.101 plus Realtek driver package, r8169   
   driver blacklisted, booting from SATA drive.   
      
   When the issue occurs, SSD delivers 1.9GB/s. Network card delivers 169MB/s.   
   In normal cases, SSD delivers 3,5GB/s, network card delivers 275MB/s (so the   
   difference is significant, but still functionally ok).   
      
   Like i said, i fail to see a pattern. System log files are just too huge, but   
   despite that i tried to compare them and am relatively confident i did not   
   find anything striking.   
      
   I have swapped power supply, mainboard, SSD, RAM, CPU, keyboard/mouse. Booting   
   other Ubuntu (clonezilla images) - looks similar.   
      
   Tried googling it but no way finding something, google is too smart and knows   
   what i was looking for (totally polluted with same search terms but totally   
   different context).   
      
   Anyone having an idea what is happening here?   
      
   --   
   mit freundlichen Grüßen/with kind regards,   
      
   Christian Dürrhauer   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)