Wperf.exe: Perf Monitor

Perf Monitor is a GUI-based tool that monitors performance and presents data in a different way than System Monitor.

Using Perf Monitor

1. Click a corner of the window when it appears, and enlarge the window.
2. Double-click on the window to display the Select menu. Select the counters whose information you want to display. The following can be monitored by CPU in either line or bar graph form:
• Page Faults/Sec.
• Context Switch/Sec.
• 1st Level TB Fills/Sec. (RISC-specific. See below.)
• 2nd Level TB Fills/Sec. (RISC-specific. See below.)
• System Calls/Sec.
• Interrupts/Sec.
• Paged Pool
• Non Paged Pool
• Process Count
• Thread Count
• Align Fixup Count
• Exception Dispatch Count
• Float Emulation Count
• Inst Emulation Count

Counters 1st Level TB Fills/Sec and 2nd Level TB Fills/Sec are not available through System Monitor, because they are supported only by some RISC-based computers. The TB is the page translation buffer in the processor, which is used to translate virtual addresses to physical addresses. On some RISC-based computers, resolving TB misses is a software operation, so a large number of these reduces system performance.

File Required

• Wperf.exe