XPost: comp.os.linux.misc   
   From: suzyw0ng@outlook.com   
      
   So the atd supposedly will not start another job until load factor falls   
   below a limit. Different documentation gives the default as 0.8 or 1.5   
   Now I launch a job that uses 4 cores on a 6-core CPU. If I run top   
   command, I see four processes running close to 100%.   
   Now if I submit another job 10 seconds later, that starts thereby   
   overloading the CPU. Documentation suggests setting load limit to more   
   than n-1 for n CPU cores, but I think that is intended for single-thread   
   jobs. I have tried altering the load limit in atd.service file to all   
   sorts of values, but second job keeps starting while the first is   
   flogging the CPU. I check with 'ps -ef|grep atd' to see it is using the   
   desired load limit. I am aware that the load factor is an average, you   
   can see it changes slowly in top/htop/glances. So I also increase the   
   delay between jobs to 30 seconds, but still nothing works. So it looks   
   like I have to specify a time like 'now+60 minutes' when I submit,   
   requiring some guess how long first job runs. I know I can install a   
   proper job scheduler such as Some Grid Engine, but that is more work.   
   This is on Debian 11, by the way.   
      
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