WHEN YOU HAVE COMPLETED YOUR SELECTION OF OBJECTS AND COUNTERS, CLI...

5. When you have completed your selection of objects and counters, click Close toreturn to the Performance console.Table 19-4 explains a few of the counters that you might find useful for evaluating yourcomputer’s performance.Table 19-4 Partial List of Counters That Are Available in System MonitorCounter DescriptionUnder Processor, Indicates the percentage of time that the processor spends execut-choose %Processor Timeing a nonidle thread, which is the percentage of time that the pro-cessor is active. During some operations this might reach 100 percent. Periods of 100 percent activity should occur only occasion-ally. This counter is the primary indicator of processor activity. Sus-tained values over 80 percent indicate a potential processor bottleneck.Indicates the time that the processor spends receiving and servicing choose %Interrupt Timehardware interrupts during sample intervals. This value is an indica-tor of the activity of devices that generate interrupts (such as the system clock, mouse, and disk drivers). Devices like these typically interrupt the processor when they complete a task or require the processor’s attention. If the %Processor Time value is greater than 90 percent, and the %Interrupt Time value is greater than 15 per-cent, this processor is probably in need of assistance to handle the interrupt load.Indicates how much time the processor is spending processing choose % DPC TimeDPCs. DPCs are software interrupts or tasks that require immediate processing, causing other tasks to be handled at a lower priority. DPCs represent further processing of client requests.Under System, choose Indicates the number of threads in the processor queue. There is a Processor Queue Lengthsingle queue for processor time, even on computers with multiple processors. A sustained processor queue of greater than two threads usually indicates that the processor is slowing down the overall system performance.