OProfile
OProfile is a low-overhead, transparent system-wide profiler
for Linux, capable of instruction-grain profiling of all processes,
shared libraries, the kernel and device drivers, via the hardware
performance counters.
It consists of a kernel driver and a daemon for collecting
sample data, and several post-profiling tools for turning data into
information.
OProfile leverages the hardware performance counters of the
CPU to enable profiling of a wide variety of interesting statistics,
which can also be used for basic time-spent profiling. All code is
profiled: hardware and software interrupt handlers, kernel modules, the
kernel, shared libraries, and applications.
Features include:
- System-wide profiling
- Performance counter support
- Call-graph support
- Low overhead
- Post-profile analysis
- System support
- Support for dynamically compiled (JIT) code
- operf program that
allows non-root
users to profile a specified individual process
Return
to Boot Utilities Home Page
Last Updated Sunday, March 24 2013 @ 06:28 PM EST
| 
