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   comp.os.vms      DEC's VAX* line of computers & VMS.      264,096 messages   

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   Message 262,115 of 264,096   
   Simon Clubley to All   
   Timer resolution for sys$setimr() ?   
   04 Dec 24 13:37:49   
   
   From: clubley@remove_me.eisner.decus.org-Earth.UFP   
      
   What is the actual resolution of timer events queued using the   
   sys$setimr() system service ?   
      
   NOTE: this is about when the timer becomes eligible to fire, not when   
   it actually does, given that VMS is not a hard RTOS.   
      
   The base VMS time format is in 100ns units, but I couldn't see anything   
   about the units actually used when firing timer events. Is it the same   
   as the hopeless terminal driver timeouts, or is it 100ns, or is it   
   something in between ?   
      
   Thanks,   
      
   Simon.   
      
   PS: This is purely academic BTW. I am working with some sub-second timers   
   on a Linux project and was wondering what the situation is with VMS.   
      
   Simon.   
      
   --   
   Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP   
   Walking destinations on a map are further away than they appear.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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