Yes, indeed, sysctl can tweak these values fairly adequately.


Now, numbers of semaphors are not as readily tweaked; I wound up
limited, the other day, when I tried setting values for...

  kern.ipc.semmns
  kern.ipc.semmni

Same. Maybe that was the option I was thinking was read-only:


houston# sysctl kern.ipc.semmns
kern.ipc.semmns: 60
houston# sysctl -w kern.ipc.semmns=70
sysctl: oid 'kern.ipc.semmns' is read only
houston# sysctl kern.ipc.semmni
kern.ipc.semmni: 10
houston# sysctl -w kern.ipc.semmni=30
sysctl: oid 'kern.ipc.semmni' is read only

I like how they use oids :P

Chris



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