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.
Key Features
- 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.
Website: oprofile.sourceforge.net
Support: Documentation
Developer: John Levon, Philippe Elie, Maynard Johnson
License: GNU General Public License v2.0
OProfile is written in C and C++. Learn C with our recommended free books and free tutorials. Learn C++ with our recommended free books and free tutorials.
Related Software
| Boot Utilities | |
|---|---|
| Ventoy | Create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files |
| Limine | Multiprotocol bootloader and boot manager |
| rEFInd | EFI boot manager |
| Plymouth | Boot splash and boot logger |
| UNetbootin | Universal Netbook installer |
| sbctl | Create, enroll and manage Secure Boot keys |
| Grub Customizer | Graphical interface to configure the grub2/burg settings |
| bootchart2 | Merge of bootchart-collector and pybootchartgui |
| OProfile | Low-overhead, transparent system-wide profiler |
| e4rat | Ext4 - Reducing Access Times; toolset to accelerate the boot process |
Read our verdict in the software roundup.
 LinuxLinks helps you discover the best free and open source software for Linux. Explore our extensive collection of recommended applications, including alternatives to popular proprietary software.We also publish software reviews, Linux tutorials, hardware reviews, free programming books and articles covering the wider open source community. Browse our Linux resources to discover more. Know a useful free and open source Linux application we haven't covered? Suggest a program for inclusion. Has your software been featured on LinuxLinks? Display one of our Featured on LinuxLinks badges on your website or GitHub README. |
Please read our Comment Policy before commenting.