Date: Thu, 07 Aug 2014 09:47:36 -0400 From: Eric van Gyzen <eric@vangyzen.net> To: Stefan Parvu <sparvu@systemdatarecorder.org> Cc: freebsd-hackers@freebsd.org Subject: Re: run-queue length via sysctl Message-ID: <53E38378.60401@vangyzen.net> In-Reply-To: <20140807163024.30fa15298e9dfee4661f68ec@systemdatarecorder.org> References: <20140807163024.30fa15298e9dfee4661f68ec@systemdatarecorder.org>
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On 08/07/2014 09:30, Stefan Parvu wrote: > Hi, > > I made some progress in porting 2 data recorders to FreeBSD: > cpurec, hdwrec: http://www.systemdatarecorder.org/recording/agents.html > > Im working now on sysrec and found very powerful the sysctl interface since last > time I checked in 2007 or so. > > But I could not find any way to get the value of run-queue length via sysctl. > > procs memory page disks faults cpu > r b w avm fre flt re pi po fr sr mf0 mf1 in sy cs us sy id > 0 0 0 757M 61G 6 0 0 0 12 1 0 0 9 50 135 0 0 100 > 0 0 0 757M 61G 0 0 0 0 0 1 0 0 21 140 208 0 0 100 > 0 0 0 757M 61G 0 0 0 0 0 1 0 0 3 125 94 0 0 100 > 0 0 0 757M 61G 0 0 0 0 0 1 0 0 4 125 99 0 0 100 > > I dont want to call vmstat in my script ... Any ideas how to do this ? $ sysctl vm.vmtotal vm.vmtotal: System wide totals computed every five seconds: (values in kilobytes) =============================================== Processes: (RUNQ: 2 Disk Wait: 0 Page Wait: 0 Sleep: 239) Virtual Memory: (Total: 1083133168K Active: 9251728K) Real Memory: (Total: 7492844K Active: 1953232K) Shared Virtual Memory: (Total: 122304K Active: 113348K) Shared Real Memory: (Total: 48648K Active: 48268K) Free Memory: 764348K vmstat uses the vm.vmtotal sysctl to get a struct vmtotal{} for the "r b w" columns. See fill_vmtotal() in src/usr.bin/vmstat/vmstat.c and vmtotal{} in /usr/include/sys/vmmeter.h. Eric
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