01-07-2017
As shown -- You do not have a cpu resource problem. Period.
Cpu queues may (note the "may") be caused by a lot of process context switching. LWP's (Solaris threads) can do this. I think that is your issue. But I do no think you have a real problem. Yet.
So, if you want to learn about your system context switches try
dtrace using
cswstat.d I am definitely not saying this is your perceived issue, but dtrace is your best window into the kernel. And it looks like you want to learn.
Books like this one are very much in order for learning
dtrace:
DTrace: Dynamic Tracing in Oracle Solaris, Mac OS X and FreeBSD: Brendan Gregg, Jim Mauro: 9780132091510: Amazon.com: Books
Ok. If your system has problems, always consider starting your problem solving with I/O. I/O request queue length for example. You may have one disk device that is being hammered. Or the device has problems.
iostat is your friend here. So is
dtrace:
Tutorial: DTrace by Example
Checkout the
dtrace toolkit.
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sdt(7D) Devices sdt(7D)
NAME
sdt - DTrace statically defined tracing provider
DESCRIPTION
The sdt driver is a DTrace dynamic tracing provider that performs dynamic instrumentation at statically-defined locations in the Solaris
kernel.
The sdt provider allows kernel developers to explicitly create probes at formally designated locations in the operating system kernel and
loadable modules, allowing the implementor to consciously choose the points in their code that are desired probe points, and to convey some
semantic knowledge about that point with the choice of probe name and a relevant set of arguments.
The sdt driver is not a public interface and you access instrumentation offered by this provider through DTrace. Refer to the Solaris
Dynamic Tracing Guide for a description of the public documented interfaces available for the DTrace facility and the probes offered by the
sdt provider.
ATTRIBUTES
See attributes(5) for a description of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWdtrp |
+-----------------------------+-----------------------------+
|Interface Stability |Private |
+-----------------------------+-----------------------------+
SEE ALSO
dtrace(1M), attributes(5), dtrace(7D)
Solaris Dynamic Tracing Guide
SunOS 5.10 4 Sep 2003 sdt(7D)