My apologies...I stand corrected. Not sure what I was thinking, but I chased this down in the code, and it indeed derived from runq depth (a running, decayed average).
Thanks, /jim Brian Gupta wrote: > http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/getloadavg.c#40 > > I am not very proficient in C. Based on the code comment though, it > seems that it is pretty much straight run queue data. > > -Brian > > On 7/26/07, *Jim Mauro* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > > > 1) Load average is the average number of threads(processes) either > > running on the cpu or waiting in the run queue. > > I need to check the code, but I do not think this is technically > correct. > The load average value is derived in part from run queue depth, > but also > from recent CPU utilization (sys + usr). > > Again, I have not looked at this code in a while, but I recall it's > something more > complex than a running average of runnable threads. > > Thanks, > /jim > > > > _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
