VMware vSphere vCenter Server 4.0 - Manual (Page 85)

Table A-4. CPU Panel Statistics (Continued)
Line Description
CCPU(%) Percentages of total CPU time as reported by the ESX service console. This field is not displayed if
you are using ESXi.
n us — Percentage user time.
n sy — Percentage system time.
n id — Percentage idle time.
n wa — Percentage wait time.
n cs/sec — Context switches per second recorded by the service console.
ID Resource pool ID or virtual machine ID of the running world’s resource pool or virtual machine, or
world ID of running world.
GID Resource pool ID of the running world’s resource pool or virtual machine.
NAME Name of running world’s resource pool or virtual machine, or name of running world.
NWLD Number of members in running world’s resource pool or virtual machine. If a Group is expanded
using the interactive command e (see interactive commands), then NWLD for all the resulting worlds
is 1 (some resource pools like the console resource pool have only one member).
%STATE TIMES Set of CPU statistics made up of the following percentages. For a world, the percentages are a
percentage of one physical CPU core.
%USED Percentage of physical CPU core cycles used by the resource pool, virtual machine, or world. %USED
might depend on the frequency with which the CPU core is running. When running with lower CPU
core frequency, %USED can be smaller than %RUN. On CPUs which support turbo mode, CPU
frequency can also be higher than the nominal (rated) frequency, and %USED can be larger than
%RUN.
%SYS Percentage of time spent in the ESX/ESXi VMkernel on behalf of the resource pool, virtual machine,
or world to process interrupts and to perform other system activities. This time is part of the time
used to calculate %USED.
%WAIT Percentage of time the resource pool, virtual machine, or world spent in the blocked or busy wait
state. This percentage includes the percentage of time the resource pool, virtual machine, or world
was idle.
%IDLE Percentage of time the resource pool, virtual machine, or world was idle. Subtract this percentage
from %WAIT to see the percentage of time the resource pool, virtual machine, or world was waiting
for some event. The difference, %WAIT- %IDLE, of the VCPU worlds can be used to estimate guest
I/O wait time. To find the VCPU worlds, use the single-key command e to expand a virtual machine
and search for the world NAME starting with "vcpu". (Note that the VCPU worlds might wait for
other events besides I/O events, so, this measurement is only an estimate.)
%RDY Percentage of time the resource pool, virtual machine, or world was ready to run, but was not be
provided CPU resources on which to execute.
%MLMTD (max
limited)
Percentage of time the ESX/ESXi VMkernel deliberately did not run the resource pool, virtual
machine, or world because doing so would violate the resource pool, virtual machine, or world's
limit setting. Because the resource pool, virtual machine, or world is ready to run when it is prevented
from running in this way, the %MLMTD (max limited) time is included in %RDY time.
%SWPWT Percentage of time a resource pool or world spends waiting for the ESX/ESXi VMkernel to swap
memory. The %SWPWT (swap wait) time is included in the %WAIT time.
EVENT COUNTS/s Set of CPU statistics made up of per second event rates. These statistics are for VMware internal use
only.
CPU ALLOC Set of CPU statistics made up of the following CPU allocation configuration parameters.
AMIN Resource pool, virtual machine, or world attribute Reservation.
AMAX Resource pool, virtual machine, or world attribute Limit. A value of -1 means unlimited.
ASHRS Resource pool, virtual machine, or world attribute Shares.
SUMMARY STATS Set of CPU statistics made up of the following CPU configuration parameters and statistics. These
statistics apply only to worlds and not to virtual machines or resource pools.
Appendix A Performance Monitoring Utilities: resxtop and esxtop
VMware, Inc. 85