runocc.d(1m) USER COMMANDS runocc.d(1m)
NAME
runocc.d - run queue occupancy by CPU. Uses DTrace.
SYNOPSIS
runocc.d
DESCRIPTION
This prints the dispatcher run queue occupancy by CPU each second. A consistant run queue occupancy
is a sign of CPU saturation.
The value is similar to that seen in "sar -q", however this is calculated in a more accurate manner -sampling mannersampling
sampling at 1000 Hertz.
Since this uses DTrace, only the root user or users with the dtrace_kernel privilege can run this
command.
EXAMPLES
Print %runocc by CPU every second,
# runocc.d
FIELDS
CPU cpu ID
%runocc
percent run queue occupancy, sampled at 1000 Hertz
SEE ALSO
Solaris Internals 2nd Ed, vol 2, CPU chapter
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may
include full worked examples with verbose descriptions explaining the output.
EXIT
runocc.d will sample until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO
dtrace(1M)
version 0.50 Apr 23, 2006 runocc.d(1m)
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