qprof

Langue: en

Version: Wed 25 February 2009 (ubuntu - 07/07/09)

Section: 1 (Commandes utilisateur)

Sommaire

NAME

qprof - profiling tool

SYNTAX

qprof [-r|-v] [-i time]
[-b size] [-g instruction|line|function]
[-a path] [-w cols]
[-c red|blue|green|ECMA] [-e hwevnt]
[-o file] [-s] [-q dir]
command

DESCRIPTION

A simple profiling utility

OPTIONS

-v
Use virtual (user mode) time for profiling
-i time
Microseconds or events between profiling ticks. Default 10,000 usecs or 10,000 events.
-b size
Size of PC sample buffer entries. Default 400K.
-g gran
Granularity; set to instruction, line or function
-a path
Path of addr2line command. Default /usr/bin/addr2line.
-w col
Number of columns in output
-c
color red blue green or an ECMA color.
-e
hwevnt Hardware event timer (see /usr/share/doc/qprof)
-o
file Output file if not stderr
-s
Include PC values on call stack
-q
dir Directory for q-tools compatible profile information

ENVIRONMENT VARIABLES

qprof depends on setting the LD_PRELOAD environment variable to work correctly.

SEE ALSO

qprof_start (1), qprof_stop (1)