CPUInfo
cpuinfo consists in an API/library used by programs to get information about the underlying CPU. Such information include CPU vendor, model name, cache hierarchy, and supported features (e.g. CMP, SMT, SIMD). cpuinfo is also a standalone program to demonstrate the use of this API.
The cpuinfo library is distributed under the terms of the GNU Lesser General Public License (LGPL).
Last update: 2007/07/15 -- Version 1.0-Pre R2 (perl bindings, more features detected).
Supported platforms
cpuinfo has been built and tested on the following platforms:
| CPU | OS | Compilers |
|---|---|---|
| i386 | Linux | GCC >= 3.3.4, G++ >= 2.96 |
| i386 | NetBSD >= 2.0 | GCC >= 3.3.3 |
| i386 | FreeBSD >= 5.3 | GCC >= 3.3.3 |
| i386 | MacOS X >= 10.4.9 | GCC >= 4.0.1 |
| x86_64 | Linux | GCC >= 3.3.4 |
| ia64 | Linux | GCC 4.1 |
| ia64 | HP-UX >= 11i v2 | HP C/aC++ A.06.14, GCC >= 3.4.3 |
| ia64 | FreeBSD >= 6.1 | GCC >= 3.4.4 |
| ppc | Linux | GCC >= 3.4.3 |
| ppc | MacOS X >= 10.2.8 | GCC >= 3.1 |
| mips | IRIX >= 6.5 | MIPSpro >= 7.3.1.3 (C++), MIPSpro >= 7.4 (C), GCC >= 3.3 |
Downloads
cpuinfo 1.0-Pre R2 (15.Jul.2007)
- Linux/i586 (glibc 2.3, gcc 3.3, RPM)
- Linux/x86_64 (glibc 2.3, gcc 3.3, RPM)
Documentation
The API is only documented in the cpuinfo.h file at this time. It currently contains features I am interested in but it may evolve in the future.
If cpuinfo behaves incorrectly, please send the output of
cpuinfo --debug
and any useful information to fix your problem (e.g. expected model name, correct cache information, etc.). Note that the much preferred way is to provide patches as well as this is a secondary/toy project. 