Help! Slow Performance Post: 39569

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LEARN ABOUT NETBSD

pmc

PMC(1)							    BSD General Commands Manual 						    PMC(1)

NAME

     pmc -- performance-monitoring counter interface for command execution

SYNOPSIS

     pmc -h
     pmc -C
     pmc -c event command [options ...]

DESCRIPTION

     pmc is a means of using a processor's performance-monitoring counter (PMC) facility to measure various aspects of a program's execution.  It
     is meant to be used in a fashion similar to time(1).

     The arguments are as follows:

     -h      Display a list of performance counter events available on the system.

     -C      Cancel any performance counters that are currently running.

     -c event
	     Count the event specified by event while running the command.

DIAGNOSTICS

     PMC support is not compiled into the kernel  Performance-monitoring counter support has not been compiled into the kernel.  It may be
     included using the PERFCTRS option.  See options(4) for details.

     PMC counters are not supported by CPU  Performance-monitoring counters are not available for the CPU.

SEE ALSO

     time(1), options(4)

HISTORY

     The pmc command first appeared in NetBSD 1.6.

AUTHORS

     The pmc command was written by Frank van der Linden <fvdl@wasabisystems.com>.  The kernel support for reading performance counters on the
     i386 architecture was written by
     Jason R. Thorpe <thorpej@zembu.com>.

BUGS

     The pmc command currently only supports performance-monitoring counters on the i386 architecture.

BSD
								 October 24, 2000							       BSD

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

egrep is very slow : How to improve performance

Discussion started by: hidnana

2. Filesystems, Disks and Memory

Slow Copy(CP) performance

Discussion started by: b_sri

3. UNIX for Dummies Questions & Answers

Slow copy/performance... between volumes

Discussion started by: kopper

4. Shell Programming and Scripting

Slow performance filtering file

Discussion started by: Miila

5. Infrastructure Monitoring

99% performance wa, slow server.

Discussion started by: draiphod