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Copy file name to clipboardExpand all lines: articles/virtual-machines/windows/how-to-use-perfInsights.md
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@@ -27,7 +27,7 @@ If you are experiencing performance problems with virtual machines, before conta
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PerfInsights can collect and analyze several kinds of information. The following sections cover common scenarios.
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### Quick Performance Analysis
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### Quick performance analysis
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This scenario collects the disk configuration and other important information, including:
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> This scenario can affect the system, and shouldn’t be run on a live production system. If necessary, run this scenario in a dedicated maintenance window to avoid any problems. An increased workload that is caused by a trace or benchmark test can adversely affect the performance of your VM.
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>
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### Performance Analysis
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### Performance analysis
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This scenario runs a [performance counter](https://msdn.microsoft.com/library/windows/desktop/aa373083(v=vs.85).aspx) trace by using the counters that are specified in the RuleEngineConfig.json file. If the VM is identified as a server that is running SQL Server, a performance counter trace is run. It does so by using the counters that are found in the RuleEngineConfig.json file. This scenario also includes performance diagnostics data.
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### Azure Files Analysis
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### Azure Files analysis
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This scenario runs a special performance counter capture together with a network trace. The capture includes all the Server Message Block (SMB) client shares counters. The following are some key SMB client share performance counters that are part of the capture:
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|| Avg. Write Queue Length |
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|| Avg. Data Queue Length |
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### Advanced Performance Analysis
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### Advanced performance analysis
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When you run an advanced performance analysis, you select traces to run in parallel. If you want, you can run them all (Performance Counter, Xperf, Network, and StorPort).
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| Information from event logs | Yes | Yes | Yes | Yes | Yes |
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| System information | Yes | Yes | Yes | Yes | Yes |
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| Volume map | Yes | Yes | Yes | Yes | Yes |
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#### Possible problems when you run the tool on production VMs
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- For the benchmarking scenario or the "Advanced Performance Analysis" scenario that is configured to use Xperf or Diskspd, the tool might adversely affect the performance of the VM. These scenarios should not be run in a live production environment.
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- For the benchmarking scenario or the "Advanced performance analysis" scenario that is configured to use Xperf or Diskspd, the tool might adversely affect the performance of the VM. These scenarios should not be run in a live production environment.
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- For the benchmarking scenario or the "Advanced Performance Analysis" scenario that is configured to use Diskspd, ensure that no other background activity interferes with the I/O workload.
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- For the benchmarking scenario or the "Advanced performance analysis" scenario that is configured to use Diskspd, ensure that no other background activity interferes with the I/O workload.
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- By default, the tool uses the temporary storage drive to collect data. If tracing stays enabled for a longer time, the amount of data that is collected might be relevant. This can reduce the availability of space on the temporary disk, and can therefore affect any application that relies on this drive.
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>If the duration switch **/d** is not specified, PerfInsights will prompt you to repro the issue while running vmslow, azurefiles and advanced scenarios.
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When the traces or operations are completed, a new file appears in the same folder as PerfInsights. The name of the file is **CollectedData\_yyyy-MM-dd\_hh-mm-ss-fff.zip.** You can send this file to the support agent for analysis or open the report inside the zip file to review findings and recommendations.
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When the traces or operations are completed, a new file appears in the same folder as PerfInsights. The name of the file is **PerformanceDiagnostics\_yyyy-MM-dd\_hh-mm-ss-fff.zip.** You can send this file to the support agent for analysis or open the report inside the zip file to review findings and recommendations.
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## Review the diagnostics report
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Within the **CollectedData\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file, you can find an HTML report that details the findings of PerfInsights. To review the report, expand the **CollectedData\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file, and then open the **PerfInsights Report.html** file.
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Within the **PerformanceDiagnostics\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file, you can find an HTML report that details the findings of PerfInsights. To review the report, expand the **PerformanceDiagnostics\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file, and then open the **PerfInsights Report.html** file.
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Select the **Findings** tab.
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Follow the instructions in the message to access the file transfer workspace. For additional security, you have to change your password on first use.
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After you sign in, you will find a dialog box to upload the **CollectedData\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file that was collected by PerfInsights.
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After you sign in, you will find a dialog box to upload the **PerformanceDiagnostics\_yyyy-MM-dd\_hh-mm-ss-fff.zip** file that was collected by PerfInsights.
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