I installed Mathematica 12.1 on my Linux machine and the start-up time is extremely slow. I see the Spikey logo and messages like:

Initializing Kernel connections

It takes about 45 seconds to open a standard small notebook.

Running SystemInformation[], I get:

{" Version", "12.1.0 for Linux x86 (64-bit) (March 14, 2020)"},
{" Release ID", " (6765490, 2020031402)"},
{" Patch Level", "0"},
{" Activation Key", "XXXX"},
{" Machine ID", "XXXX"}

{" Machine Type", "PC"},
{" Operating System", "Unix"},
{" Processor Type", "x86-64"}

I also can see under Packages & Files that 88 packages and 221 files were loaded.

Is someone else experiencing the same problem?

I also have Mathematica 11.2 installed and there, the start-up time is about 2 seconds or less. All the messages from the Spikey logo are shown really fast. Looking at how many Packages & Files have been loaded, I see 30 packages and 183 files.

Could this be the problem? I have 16GB RAM and an Intel i7-8650U CPU.

  • 1
    $\begingroup$ My Debian Buster VM takes approx 5 seconds for the kernels to fire up. Did you try renaming ~/.Mathematica out of the way? $\endgroup$
    – ihojnicki
    Mar 25, 2020 at 21:38
  • $\begingroup$ @vsht, what does FE`Evaluate[FEPrivate`$StartTimes] return? $\endgroup$
    – ihojnicki
    Apr 18, 2022 at 13:19
  • $\begingroup$ @ihojnicki This pastebin.com/Ff6q7cNQ $\endgroup$
    – vsht
    Apr 19, 2022 at 14:55
  • 1
    $\begingroup$ @ihojnicki Ok, it's now [CASE:4938819]. For the record, I'd be really interested in getting this fixed. $\endgroup$
    – vsht
    May 12, 2022 at 16:07
  • 2
    $\begingroup$ @ihojnicki Although I reported the problem, it seems that you guys mainly test against Ubuntu, so the support is hardly interested in debugging Fedora (which is what later becomes RHEL, BTW) issues. Are there any "adjusting screws" that I could try to solve the problem? It really sucks to way 30+ secs for Mma to start, while v. 12.0 fires up in no time ... $\endgroup$
    – vsht
    Jun 10, 2022 at 16:14


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