The information in this article applies to:
- Microsoft Windows NT Workstation versions 3.5, 3.51, and 4.0
- Microsoft Windows NT Server versions 3.5, 3.51, and 4.0
SUMMARY
This article explains how to create a Performance Monitor log so that
engineers can use it to troubleshoot performance problems on a
computer running Windows NT.
MORE INFORMATION
Creating the Performance Monitor log:
- On the View menu, select Log.
- On the Edit menu, select Add To Log
- In the Add To Log dialog box you will see Computer and Objects. In
Computer, specify the name of the local computer or a remote computer
you want to get a log of. In Objects, add the counters that you want
Performance Monitor to log. These counters will change depending on the
problem that you are troubleshooting.
- Highlight the objects that you wish to monitor and select Add.
- Under Options select Log.
- Under File Name, name the log.
- At the bottom of this window you will see Update Time. It is important
to set this update time. If you are going to be running the Performance
Monitor log for an extended period of time, you will want to set this
update time to an interval much higher than 15 seconds or the log will
be very large. If you are only going to be running the log for an hour
then 15 seconds will be fine.
- Now you are ready to start the log. Press the Start Log button
located in the same window as the above. This will start the log and
this icon will change to a Stop Log icon once the log is started.
When you are ready to stop monitoring the selected objects and examine
your log file perform the following steps:
- Under Options select Log and Stop Log.
- Under the Options menu select "Data from" and "Log File". Now
select the radio button beside the perfmon.log field and locate
your log file. Choosing File and Open cannot open a log file.
- After opening the log file, add the objects and counters that were
monitored. Do this for each view needed otherwise the log file's
data will not be available.
If you are troubleshooting a performance issue or an issue that looks like
a memory leak, the objects that Performance Monitor should log include but
are not limited to:
Memory
Paging File
Process
Processor
Server
System
NOTE:
- If the computer is restarted or goes down while the log is going, you
can start a new log, or if you specify the name of an existing log file
the new data is appended to the end of the log file. It is important to
let the engineer know the log was restarted.
- If there are processes that start after the log was started they will
not show up in the beginning of the log. You will need to go to Edit
and select Time Window. There is a sliding scale that you can use to
view different periods in the log.
- If the user logs off, the performance monitor log will stop. Performance
logging can be setup as a service but running Performance Monitor remotely
from another Windows NT system is the easiest way to collect a performance
log.
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