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Open Log Files in Performance Monitor

Applies To: Windows 7, Windows Server 2008 R2, Windows Server 2012, Windows Vista

Membership in the local Users group, or equivalent, is the minimum required to complete this procedure.

To open log files in Performance Monitor

  1. In the Windows Performance Monitor navigation pane, expand Monitoring Tools and click Performance Monitor .

  2. In the console pane toolbar, click the Add Log Data button. The Performance Monitor properties page will open at the Source tab.

  3. In the Data Source section, select Log files and click Add .

  4. Browse to the log file you want to view and click Open . To add multiple log files to the Performance Monitor view, click Add again.

  5. Click Time Range to see times included in the log or logs you selected.

    • For a single log file, you can move the beginning and ending time sliders to view only a portion of the log file in Performance Monitor.

    • For multiple log files, you can move the beginning and ending time sliders to choose the time period (from all of the selected log files) to view in Performance Monitor. If a log has data from the time period you select, it will be available in the display.

  6. When you are finished selecting log files, click OK .

  7. Right-click in the Performance Monitor display and click Add Counters . The Add Counters dialog box will open. Only the counters included in the log file or files you selected in step 4 will be available.

  8. Select the counters you want to view in the Performance Monitor graph and click OK . For help adding counters, see Add Counters Dialog Box.


You can select multiple counter groups or counters at the same time by holding down the CTRL key and clicking on the group names or counter names, and then clicking OK .

Additional considerations

  • To start Windows Performance Monitor, click Start , click in the Start Search box, type perfmon , and press ENTER.

  • You can also open Performance Monitor in its own window by typing perfmon /sys and pressing ENTER in the Start Search box or at a command prompt.

Additional references