You use Windows monitors to check metrics of your Windows-based servers.
Requirements
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ReadyAPI must run on a Windows machine. Windows, IIS and MSSQL monitors are not available on Linux and macOS machines.
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The Remote Registry service must be enabled on the server.
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Ports 139 and 445 must be open on the server, the computer with ReadyAPI Performance and any proxy between them.
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The user account must have Performance Monitor or Administrator permissions on the server.
For detailed information, see Preparing Servers for Monitoring.
Specifics
When you specify the host for a Windows monitor, you need to use the server’s host name instead of the IP address.
Monitor Settings
The monitor does not have settings.
Frequently Used Metrics
Windows server monitors return information about hardware usage of your server. This helps you find out how close to the hardware limit your test has come. ReadyAPI displays the following statistics in charts by default:
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Memory – Available MBytes – Measures how much RAM is available for usage in megabytes. The minimum value varies depending on your server, but, generally, you should have more than 15-20% of server RAM available in case of a spike in a load. If your server runs out of RAM, it starts using the hard drive to store information. Since hard drive access is slower than RAM access, this may cause performance bottlenecks.
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Processor – % Processor Time – Total – Measures the usage of your server CPU. Steady 80% or more CPU usage during soak or peak tests may be the reason to upgrade the server.
Here are some other frequently used metrics:
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Paging File – % Usage – Total – The paging file is created when your server has insufficient RAM to handle all requests. The smaller the file is, the better. If the paging file exists for a long time, consider adding more RAM.
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Logical Disk – Free Megabytes – YourDiskName – Measures how much free space is left on the hard drive. The storage space of the server depends heavily on its role. For example, if your server just handles requests to the web site, you will not need much free space. But, if users can upload files, you will need a lot of space in case of a sudden spike in the number of users. The safe practice is having over 15% of free space on the logical disk used for your server, and having a separate logical disk for user files.
Other Metrics
ReadyAPI can access a subset of counters provided by Windows Performance Monitor. These counters may vary on different Windows computers. Below is a typical example of metrics that you get in ReadyAPI.
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You can click the category to see the description of metrics in MSDN. |
| Category | Description | Metrics |
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Provides information about logical disk usage. |
% Disk Read Time % Disk Time % Disk Write Time % Free Space % Idle Time Avg. Disk Bytes/read Avg. Disk Bytes/transfer Avg. Disk Bytes/write Avg. Disk Queue Length Avg. Disk Sec/read Avg. Disk Sec/transfer Avg. Disk Sec/write Avg. Disk Write Queue Length Current Disk Queue Length Disk Bytes/sec Disk Read Bytes/sec Disk Reads/sec Disk Transfers/sec Disk Write Bytes/sec Disk Writes/sec Free Megabytes Split IO/sec |
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Provides information about logical or physical disk usage. |
Avg. Disk Bytes/read Avg. Disk Bytes/transfer Avg. Disk Bytes/write Avg. Disk Queue Length Avg. Disk Sec/read Avg. Disk Sec/transfer Avg. Disk Sec/write Avg. Disk Write Queue Length Current Disk Queue Length Disk Bytes/sec Disk Read Bytes/sec Disk Reads/sec Disk Transfers/sec Disk Write Bytes/sec Disk Writes/sec Free Megabytes Split IO/sec |
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Provides information about memory usage. |
% Committed Bytes in Use Available Bytes Available KBytes Available MBytes Cache Bytes Cache Bytes Peak Cache Faults/sec Commit Limit Committed Bytes Demand Zero Faults/sec Free & Zero Page List Bytes Free System Page Table Entries Modified Page List Bytes Page Faults/sec Page Reads/sec Page Writes/sec Pages Input/sec Pages Output/sec Pages/sec Pool Nonpages Allocs Pool Nonpaged Bytes Pool Pages Allocs Pool Paged Bytes Pool Paged Resident Bytes Standby Cache Core Bytes Standby Cache Normal Priority Bytes Standby Cache Reserve Bytes System Cache Resident Bytes System Code Resident Bytes System Code Total Bytes System Driver Resident Bytes System Driver Total Bytes Transition Faults/sec Transition Pages Repurposed/sec Write Copies/sec |
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Provides information about network usage. |
Bytes Received/sec Bytes Sent/sec Bytes Total/sec Current Bandwidth Offloaded Connections Output Queue Length Packets Outbound Discarded Packets Outbound Errors Packets Received Discarded Packets Received Errors Packets Received Non-unicast/sec Packets Received Unicast/sec Packets Received Unknown Packets Received/sec Packets Sent Non-unicast/sec Packets Sent Unicast/sec Packets Sent/sec Packets/sec Paging File % Usage % Usage Peak |
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Provides information about processor usage. |
% C1 Time % C2 Time % C3 Time % DPC Time % Idle Time % Interrupt Time % Processor Time % User Time C1 Transitions/sec C2 Transitions/sec C3 Transitions/sec DPC Rate DPCs Queued/sec Interrupts/sec |
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Provides information about the metrics that apply to more than one component of the computer. |
% Registry Quota in use Alignment Fixups/sec Context Switches/sec Exception Dispatches/sec File Control Bytes/sec File Control Operations/sec File Data Operations/sec File Read Bytes/sec File Read Operations/sec File Write Bytes/sec File Write Operations/sec Floating Emulations/sec Processes Processor Queue Length System Calls/sec System Up Time Threads |
See Also
Preparing Servers for Monitoring
Server Inspector
Load Testing Templates