Package: qprof (0.5.2-5ubuntu1) [universe]

Profiling utilities for Linux

This is a set of profiling utilities, currently targeting only Linux. It includes a simple command line profiling tool, with the following characteristics:

   * It is intended to be easy to install and use. No kernel modules
   or changes are required for basic use. It can be used without root
   access.
   * It supports profiling of dynamically linked code and includes
   information on time spent in dynamic libraries.
   * It supports profiling of multithreaded applications.
   * It generates profiles for all subprocesses started from a
   shell. Thus it easily can be used to profile application with multiple
   processes.
   * It tries to generate symbolic output. This is usually successful
   for the main program, if that has debug information, i.e. was compiled
   with -g. If not, you may need a debugger to fully interpret the
   results. However the raw output will often give you a rough idea of
   where processor time is spent.
   * It currently generates "flat" profiles. The output tells you
   roughly how much time was spent in a given instruction, line, or
   function f. By default this does not include time spent in functions
   called by f, but on platforms supported by libunwind a possible
   alternative is to include callees in profile counts, thus recovering
   some gprof-like functionality.
   * Linux kernel functions are not profiled separately. By default,
   time spent in the kernel is credited to the library function which
   made the kernel call.
   * On Itanium, it can be used to generate hardware-event-based
   profiles. For example, it can tell you where most of the cache misses
   occur.