Page Fault Monitor Main Topic

Page Fault Monitor Syntax

pfmon [-n] [-l] [-c] [-h] [-p pid] [-d] [-k] [-K] application-command-line [-?]

Where:

-n

does not display running faults, just logs to Pfmon.log.

-l

logs faults to Pfmon.log.

-c

shows only code faults.

-h

shows only hard faults.

-p pid

attaches to existing process ID (pid).

-d

outputs the following tab-delimited information:

• page fault number
• page fault type - hard or soft
• program counter's module
• symbol for program counter
• decimal value of program counter
• decimal value of program counter of the virtual address (VA) accessed
• symbol for virtual address (VA)
• value of virtual address (VA)

-k

shows kernel-mode page faults and user-mode page faults.

-K

shows kernel-mode page faults instead of user-mode page faults.

application-command-line

the command line of the application to monitor. Do not specify AppCommandLine if you are using -p pid.
When you terminate the application specified by AppCommandLine, Page Fault Monitor prints a summary of the faults that occurred while executing the application. For example, execute the following command:

pfmon wperf

The summary printed when you terminate WPERF will look something like this:

wperf.dbg Caused     44 faults had     5 Soft   24 Hard faulted VA's
ntdll.dbg Caused     99 faults had    63 Soft    4 Hard faulted VA's
kernel32.dbg Caused  46 faults had    29 Soft    4 Hard faulted VA's
gdi32.dbg Caused     17 faults had     9 Soft    3 Hard faulted VA's
user32.dbg Caused    29 faults had    21 Soft    6 Hard faulted VA's
advapi32.dbg Caused   7 faults had     2 Soft    8 Hard faulted VA's
rpcrt4.dbg Caused     4 faults had     1 Soft    3 Hard faulted VA's

Total Faults 246 (KM 135 UM 246 Soft 164, Hard 82, Code 123, Data 123)

-?

displays a usage screen.