README revision 50476
114895Swollman`perfmon' is a sample program to access the performance-monitoring 214895Swollmancounters on Pentium and Pentium Pro CPUs. See perfmon(4) for a 314895Swollmandescription of this facility. 414895Swollman 514895SwollmanThe program takes the following options: 614895Swollman 714895Swollman -u count events in user mode 814895Swollman -o count events in kernel mode 914895Swollman (these two can be combined) 1014895Swollman 1114895Swollman -e count events, not duration 1214895Swollman -l n run `n' loops (default 50) 1314895Swollman -s n sleep `n' seconds between loop iterations (default 0) 1414895Swollman 1514895SwollmanThe following options are not implemented on Pentium CPUs: 1614895Swollman 1714895Swollman -m n use count mask `n' 1814895Swollman -i invert sense of count mask comparison 1914895Swollman -U n use unit mask `n' 2014895Swollman 2114895SwollmanThere is one mandatory argument, which must be the number of the counter. 2214895SwollmanAll numbers can be specified in any format acceptable to strtol(3). 2314895Swollman 2450476Speter$FreeBSD: head/share/examples/perfmon/README 50476 1999-08-28 00:22:10Z peter $ 25