papi_cost

Langue: en

Version: May, 2005 (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)

Sommaire

NAME

papi_cost - computes execution time costs for basic PAPI operations.

SYNOPSIS

papi_cost [-dhs] [-b bins] [-t threshold]

DESCRIPTION

papi_cost is a PAPI utility program that computes the min / max / mean / std. deviation of execution times for PAPI start/stop pairs and for PAPI reads. This information provides the basic operating cost to a user's program for collecting hardware counter data. Command line options control display capabilities.

OPTIONS

-b <bins>
Define the number of bins into which the results are partitioned for display. The default is 100.
-d
Display a graphical distribution of costs in a vertical histogram.
-h
Display help information about this utility.
-s
Show the number of iterations in each of the first 10 standard deviations above the mean.
-t <threshold>
Set the threshold for the number of iterations to measure costs. The default is 100,000.

BUGS

There are no known bugs in this utility.

If you find a bug, it should be reported to the PAPI Mailing List at <ptools-perfapi@ptools.org>.

SEE ALSO

PAPI(3), papi_avail(1), papi_clockres(1), papi_command_line(1), papi_decode(1), papi_event_chooser(1), papi_mem_info(1), papi_native_avail(1)