AMD performance 20x slower

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  Hi @GieltjE ,
  
  I don't have the hardware to quickly test and investigate this unfortunately, but could you please share your SmartAssembly log file so we can take a look for any details on the slowdown?
  
  Thank you!

  Jessica R May 14, 2020 23:15

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  Sent them in a private message
  

  GieltjE June 04, 2020 10:02

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  Thanks @GieltjE!
  
  I don't see anything obviously causing this from the logs unfortunately though, but I do see that there is a huge gap in time after the "Merging types..." step begins.
  
  Can I just check if you maybe have any antivirus or scanning tools on the i5-6600k machine?
  
  If you run a procmon trace while it's stuck, what files is SmartAssembly accessing?
  
  

  Jessica R June 10, 2020 02:37

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  Both machines have all virusscanners disabled (including Windows defender), keep in mind that the i5-6600k is 20x faster so even if there was a virusscanner running there it's not slowing it down.

  Sent the procmon dump in a private message.
  

  GieltjE June 10, 2020 10:19

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  Thanks! Does your application reference (or have a dependency that references ) .NET 2?

  Jessica R June 11, 2020 07:03

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  Hi @GieltjE
  
  I saw some .NET 2 files being read, so I had thought you might be running into an old issue where .NET 2 and older references could really slow things down. However, looking at it again, it doesn't seem to be spending much time looking for the .NET 2 files, there just appears to be jumps between minutes where it's not really accessing anything (aside from occasionally reading a temp file).
  
  I'm curious - does running from the GUI have the same problem as the command line?
  
  Would you be able to send your assembly, dependencies, and project for us to test with?

  Jessica R June 17, 2020 01:22

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  Even opening the saproj file takes about a minute for the splash screen to dissapear and building it via the gui takes about the same amount of time. Unfortunately we are not able to send our source files over.

  
  

  The strange part is that it does use a full thread of cpu usage, so it appears to be doing some calculation.

  How can we see which libraries are .NET2? As we should have migrated away from those a long, long time ago.
  

  GieltjE June 17, 2020 07:24

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  Hiya,
  
  I've just sent you a message with the name of the library it may be.
  
  Can I check--if you create a small assembly and SmartAssembly project, and then run it on the difference machines, is it also significantly slower on the i5-6600k machine?

  Jessica R June 18, 2020 01:20

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  Performance back to normal by disabling SMT.
  

  GieltjE September 25, 2020 09:26

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  Thanks for the update @GieltjE, that's great to hear! To confirm, is that Simultaneous multithreading?
  

  Jessica R October 02, 2020 01:27

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  That is correct, so I lose 8 threads but the compilation time drops from ~30minutes to ~1.5 minutes.
  

  GieltjE October 02, 2020 07:33

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  This has been fixed by applying the AMD Agesa "Combo V2 PI 1.2.0.3 Patch B" update
  

  GieltjE August 10, 2021 08:18

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