A great and detailed answer! Thank you a lot.
I was just directed in another forum to look at
the Diskeeper, and that proved to be the
culprit. When I stop the Diskeeper service, the
Perflib_Perfdataxxx.dat file is deleted. If I start
it again, a new Perflib_Perfdataxxx.dat file gets
created. I'll continue searching if there is a
way to force Diskeeper to clean behind itself
and will let you know if I find the answer.
| Here's more than you may want to know.
|
| Perflib stands for Performance library. Perfdata stands for Performance
| Data.
|
| The %SystemRoot%\System32\Perflib_Perfdataxxx.dat files are created by the
| System Monitor. And/or
| %homedrive%\LocalSettings\Temp\Perflib_Perfdataxxx.dat.
| or
| C:\Documents and Settings\Your Name Here\Local
| Settings\Temp\Perflib_Perfdataxxx.dat. When you shutdown normally, the
file
| should be deleted.
|
| If you have an abormal shutdown, these files can become orphaned, and
| accumulate on your computer.
|
| Under some yet to be determined circumstances, these files can become
| orphaned during normal operation.
|
| The Windows Performance tool is composed of two parts: System Monitor and
| Performance Logs and Alerts. With System Monitor, you can collect and
view
| real-time data about memory, disk, processor, network, and other activity
in
| graph, histogram, or report form.
|
| To open Performance...
| Start | Run | Type: perfmon.msc | OK
|
| You can view this by opening the Task Manager. The Performance tab
displays
| a dynamic overview of your computer's performance, such as CPU and various
| kinds of memory usage.
|
| Also caused by:
| Rundll32.exe advapi32.dll,ProcessIdleTasks
| Event ID: 1000
| Event Source: LoadPerf
|
| Perflib_Perfdataxxx.dat Files Accumulate Under %SystemRoot%\System32
|
http://support.microsoft.com/default.aspx?scid=kb;en-us;285798
|
| What are the %SystemRoot%\System32\Perflib_Perfdataxxx.dat files?
|
http://www.jsiinc.com/SUBG/TIP3300/rh3343.htm
|
| -----
|
| prflbmsg.dll = Perflib Event Messages
|
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\CIMOM
| Logging Directory
| Value Type: REG_SZ
| C:\WINDOWS\system32\WBEM\Logs\
|
| Repository Directory
| Value Type: REG_EXPAND_SZ
| %SystemRoot%\system32\WBEM\Repository
|
| Working Directory
| Value Type: REG_EXPAND_SZ
| %SystemRoot%\system32\WBEM
|
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib
|
| HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib
| ---
|
| HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion
| Perflib
|
| Description
| The Perflib subkey stores configuration data for the Windows Performance
| Library, which collects and organizes data for performance tools, such as
| System Monitor.
|
| In addition to entries, the Perflib subkey contains a Language-code subkey
| for each spoken language you configure for Windows 2000. The Language-code
| subkey stores performance counter names and their descriptions in the
| specified language. The Language-code subkey is named for the language
code
| for that language. For example, the counters and descriptions for the
| English language are stored in a subkey named 009, the language code for
| English (United States).
| ---
|
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\
| Application Sources
| REG_MULTI_SZ
| Perflib
|
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\
| Application\Perflib
| EventMessageFile
| Value Type: REG_EXPAND_SZ
| %SystemRoot%\System32\prflbmsg.dll
|
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Eventlog\
| Application Sources
| REG_MULTI_SZ
| Perflib
|
| HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Eventlog\
| Application\Perflib
| EventMessageFile
| Value Type: REG_EXPAND_SZ
| %SystemRoot%\System32\prflbmsg.dll
|
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\
| Application Sources
| REG_MULTI_SZ
| Perflib
|
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\
| Application\Perflib
| EventMessageFile
| Value Type: REG_EXPAND_SZ
| %SystemRoot%\System32\prflbmsg.dll
|
| --
| Hope this helps. Let us know.
|
| Wes
| MS-MVP Windows Shell/User
|
| In | Jerry <
[email protected]> hunted and pecked:
| > As of recently my temporary folder started to
| > fill with file called Perflib_Perfdata_***.dat.
| > The *** part varies and all files are 16 KB.
| >
| > Anyone can tell me what this is?
|
