---
name: "qprof"
section: "1"
platform: "linux"
package: "qprof"
version: "0.5.1-6"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/qprof"
---

# qprof(1)

profiling tool

## 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)