> In message <20050221210834.GB87259_at_opteron.dglawrence.com>, "David G. Lawrence" > writes: > >> aren't being serviced isn't a bug. The reason the load on systems with > >> many processes is typically low is that most processes are blocked on I/O > >> -- either waiting for it to complete, waing for a network packet, or > >> waiting for the user, so they're idle the rest of the time. The CPU sits > >> there waiting for the world to catch up... > > > > The load average has historically meant the number of processes either > >running/ready to run OR blocked by short term (disk I/O) wait. > > No, disk I/O sleeps is not involved. > > The loadavg is the length of the runqueue. Any process sleeping, > on network, disk or timer, is not counted towards the total. I said "historically". :-) This was changed in FreeBSD a some years ago. -DG David G. Lawrence President Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 TeraSolutions, Inc. - http://www.terasolutions.com - (888) 346 7175 The FreeBSD Project - http://www.freebsd.org Pave the road of life with opportunities.Received on Mon Feb 21 2005 - 20:33:39 UTC
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