OProfile

File Release Notes and Changelog

Release Name: oprofile 0.7

Notes:
Release notes
-------------

For 2.2 kernels, the module must be compiled as the same user
that owns the kernel source tree.

nosmp is not supported in kernels before 2.4.10 (bug #463087).

The pre-emptable kernel option is not supported in 2.4 (bug #478516).

Power management on laptops can be incompatible with OProfile in 2.4 (bug #554927).

The sample file format has changed again from previous releases. You
will not be able to read older sample files with OProfile 0.7, or vice
versa.

The default event count for performance-counter CPUs has been changed
to a set value, instead of scaling on CPU frequency. This means that
the granulity of sampling is now constant, though faster CPUs will
have a higher interrupt load.


Changes:
New features
------------

If a binary could not be read or found, the samples for it are no longer
discarded in the opreport output: instead they appear as if the binary
had no symbols with the "(no symbols)" marker.

By default, opreport no longer shows the VMA address of each symbol.
You can re-enable this with the --show-address / -w option.

Per processor and per thread samples separation has been implemented

Bug fixes
---------

Compilation with Qt 2.3.1 has been fixed.

A race which could lead to empty sample files, triggering an assertion
in the post-profiling tools, has been fixed.

--global-percent now applies to assembly instruction percentages in
--details output.

A symbolic link passed to the post-profiling tools is now correctly
resolved to the target binary.

The limitation of 64 kernel modules has finally been removed.