User Guide

Contents

Error Message: Cannot Locate Debugging Information

Cause

Debugging information (PDB files on Windows* and DWARF format on Linux*) for applications and system modules is not generally available on the system by default. Missing debug information is not critical to performance analysis but prevents
Intel® VTune™
Profiler
from providing full-scale statistics on call stacks, source data, and so on.
If the
VTune
Profiler
does not find debug information for the binaries, it statically identifies function boundaries and assigns hotspot addresses to generated pseudo names
func@
address
for such functions, for example:
If a module is not found or the name of a function cannot be resolved, the
VTune
Profiler
displays module identifiers within square brackets, for example:
[module]
.
If the debug information is absent, the
VTune
Profiler
may not unwind the call stack and display it correctly in the
Call Stack
pane. Additionally in some cases, it can take significantly more time to finalize the results for modules that do not have debug information.

Solution

For accurate performance analysis, you are recommended to have the debug information available on the system where the
VTune
Profiler
is installed. See detailed instructions to enable:

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.