cpuinfo

cpuinfo is a library to detect essential for performance optimization information about host CPU. Features * Cross-platform availability: * Linux, Windows, macOS, Android, and iOS operating systems * x86, x86-64, ARM, and ARM64 architectures * Modern C/C++ interface * Thread-safe * No memory allocation after initialization * No exceptions thrown * Detection of supported instruction sets, up to AVX512 (x86) and ARMv8.3 extensions * Detection of SoC and core information: * Processor (SoC) name * Vendor and microarchitecture for each CPU core * ID (MIDR on ARM, CPUID leaf 1 EAX value on x86) for each CPU core * Detection of cache information: * Cache type (instruction/data/unified), size and line size * Cache associativity * Cores and logical processors (hyper-threads) sharing the cache * Detection of topology information (relative between logical processors, cores, and processor packages) * Well-tested production-quality code: * 60+ mock tests based on data from real devices * Includes work-arounds for common bugs in hardware and OS kernels * Supports systems with heterogenous cores, such as big.LITTLE and Max.Med.Min * Permissive open-source license (Simplified BSD)