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. 0Default 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)