  X-NEWS: wkuvx1 comp.os.vms: 7738J Relay-Version: VMS News - V6.0-3 14/03/90 VAX/VMS V5.5; site wkuvx1.bitnet Path: wkuvx1.bitnet!vlsi!ukma!wupost!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!ucbvax!TGV.COM!adelman  Newsgroups: comp.os.vms 1 Subject: Re: LAV Driver question - very simple ?! + Message-ID: <920224171737.22a000ae@TGV.COM> ' From: adelman@TGV.COM (Kenneth Adelman)  Date: 25 Feb 92 01:22:20 GMT+ Reply-To: Adelman@TGV.COM (Kenneth Adelman) " Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet
 Lines: 815  L > I am using Ken Adelman's LAV driver and am stumped by how to interpret theJ > info returned. I am enclosing a copy of my SHORT FORTRAN code to get theN > system average load info from LAV0. How do I interpret the Blocking priorityL > info and the queue length info i.e. both of these would seem to be integerO > values because priorities are integers and queue lengths would also appear to  > be integers as well.  L > According to the way I read Ken's comments (which I've added to the top ofL > my code), the driver returns all real values, which when displayed are all > less than 1.00.   F     These are time averages over 1, 5, and 15 minutes of the following quantities:   G     1) The number of processes waiting for the CPU. Scans the scheduler G        queues for the number of processes in COM, COMO, COLPG, PFW, and -        similar states indicating "execution".   E     2) The average disk queue length. Scans the disk database for the H        "queue length" of each disk. Takes the longest one (per scan) and0        averages the "longest disk queue length".  J     3) The average priority of the executing process. Scans each processorM        looking for the LOWEST priority which is currently executing. Averages J        this number. This is a good indication of whether or not you'll getK        the CPU if you request it. If you are much above this number, you'll 9        get 100%. If you are much below it, you'll get 0%.     J     On a machine which isn't very busy, any of these quantities can easilyI be less than 1.00. For example, on an idle machine the quantities are all  zero.   I     Here is a current copy of LAVDRIVER.MAR for those who are interested.    								Ken     