TPROF_AMDPMI(4)

TPROF_AMDPMI(4) | Kernel Interfaces Manual | TPROF_AMDPMI(4)

# NAME

tprof_amdpmi — a tprof backend for AMD processors

# SYNOPSIS

pseudo-device tprof_amdpmi

# DESCRIPTION

The tprof_amdpmi driver is a tprof(4) backend driver, which uses performance-monitoring events available for some AMD processors.

It programs the processors so that "CPU Clocks not Halted" events (event select 0x76) to raise NMIs and the NMI handler collect samples.

# SEE ALSO

tprof(4)

# AUTHORS

The tprof_amdpmi driver was written by YAMAMOTO Takashi.

December 2, 2011 | NetBSD 7.0