MSDN中推荐的性能测试阀值

Recommended Thresholds for the Minimum Set of System Counters
Resource
Object\Counter
Suggested Threshold
Comments
Disk
LogicalDisk\% Free Space
15 percent
None
Disk
LogicalDisk\% Disk Time
90 percent
None
Disk
PhysicalDisk\Disk Reads/sec, PhysicalDisk\Disk Writes/sec
Depends on manufacturer's specifications
Check the specified transfer rate for your disks to verify that this rate does not exceed the specifications. In general, Ultra Wide SCSI disks can handle 50 to 70 I/O operations per second.
Disk
PhysicalDisk\Current Disk Queue Length
Number of spindles plus 2
This is an instantaneous counter; observe its value over several intervals. For an average over time, use PhysicalDisk\Avg. Disk Queue Length.
Memory
Memory\ Available Bytes
Less than 4 MB
Research memory usage and add memory if needed.
Memory
Memory\ Pages/sec
20
Research paging activity.
Network
Network Segment\% Net Utilization
Depends on type of network
You must determine the threshold based on the type of network you are running. For Ethernet networks, for example, 30 percent is the recommended threshold.
Paging File
Paging File\% Usage
Above 70 percent
Review this value in conjunction with Available Bytes and Pages/sec to understand paging activity on your computer.
Processor
Processor\% Processor Time
85 percent
Find the process that is using a high percentage of processor time. Upgrade to a faster processor or install an additional processor.
Processor
Processor\ Interrupts/sec
Depends on processor; for current CPUs, use a threshold of 1500 interrupts per second
A dramatic increase in this counter value without a corresponding increase in system activity indicates a hardware problem. Identify the network adapter or disk controller card causing the interrupts. You might need to install an additional adapter or controller card.
Server
Server\Bytes Total/sec

If the sum of Bytes Total/sec for all servers is roughly equal to the maximum transfer rates of your network, you might need to segment the network.
Server
Server\Work Item Shortages
3
If the value reaches this threshold, consider tuning the InitWorkItems or MaxWorkItems entries in the registry (in HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSetServices\lanmanserver\Parameters). For more information about MaxWorkItems, see the Microsoft Knowledge Base link on the Web Resources page at http://windows.microsoft.com/windows2000/reskit/webresources . Caution Do not use a registry editor to edit the registry directly unless you have no alternative. The registry editors bypass the standard safeguards provided by administrative tools. These safeguards prevent you from entering conflicting settings or settings that are likely to degrade performance or damage your system. Editing the registry directly can have serious, unexpected consequences that can prevent the system from starting and require that you reinstall Windows 2000. To configure or customize Windows 2000, use the programs in Control Panel or Microsoft Management Console whenever possible.
Server
Server Work Queues\Queue Length
4
If the value reaches this threshold, there might be a processor bottleneck. This is an instantaneous counter; observe its value over several intervals.
Multiple Processors
System\Processor Queue Length
2
This is an instantaneous counter; observe its value over several intervals.