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gerrit-public.fairphone.software / platform / external / cpuinfo / 59d3071ad56e55d707e9df64d782c892737f3c0e
commit59d3071ad56e55d707e9df64d782c892737f3c0e[log] [tgz]
authorMarat Dukhan <maratek@gmail.com>Mon May 08 04:43:52 2017 -0400
committerMarat Dukhan <maratek@gmail.com>Mon May 08 04:43:52 2017 -0400
treefdbc6a082f6541dbf85102eafcc2c5d50986f1ec
parentf3acb6ccc88afbcbaec5e654021f47d2031be957 [diff]
Android support
4 files changed
tree: fdbc6a082f6541dbf85102eafcc2c5d50986f1ec
  1. include/
  2. jni/
  3. src/
  4. test/
  5. tools/
  6. .gitignore
  7. configure.py
  8. confu.yaml
  9. LICENSE
  10. README.md
README.md

CPU INFOrmation library

cpuinfo is a library to detect essential for performance optimization information about host CPU. Planned features:

  • Processor name detection
    • [ ] Using CPUID leaves 0x80000002–0x80000004 on x86/x86-64
    • [ ] Using /proc/cpuinfo on ARM
    • [ ] Using kernel log (dmesg) on ARM
    • [ ] Using ro.chipname, 'ro.board.platform', 'ro.product.board' properties (Android)
  • Instruction set detection
    • [x] Using CPUID on x86/x86-64 (Linux, Mach)
    • [x] Using dynamic code generation validator on x86-64 (Native Client)
    • [x] Using /proc/cpuinfo on 32-bit ARM EABI (Linux)
    • [x] Using microarchitecture heuristics on 32-bit ARM
    • [x] Using FPSID and WCID registers on 32-bit ARM
    • [ ] Using getauxval or /proc/self/auxv (Linux)
    • [ ] Using instruction probing on ARM (Linux)
  • Cache detection
    • [x] Using CPUID leaf 0x00000002 on x86/x86-64
    • [x] Using CPUID leaf 0x00000004 on non-AMD x86/x86-64
    • [ ] Using CPUID leaves 0x80000005-0x80000006 on AMD x86/x86-64
    • [x] Using CPUID leaf 0x8000001D on AMD x86/x86-64
    • [x] Using /proc/cpuinfo on ARMv6 and earlier (Linux)
    • [x] Using microarchitecture heuristics on 32-bit ARM
    • [x] Using sysctlbyname (Mach)
    • [ ] Using sysfs (Linux)
    • [ ] Using clGetDeviceInfo with CL_DEVICE_GLOBAL_MEM_CACHE_SIZE/CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE parameters (Android)
  • TLB detection
    • [x] Using CPUID leaf 0x00000002 on x86/x86-64
    • [ ] Using CPUID leaves 0x80000005-0x80000006 and 0x80000019 on AMD x86/x86-64
    • [x] Using microarchitecture heuristics on 32-bit ARM
  • Topology detection
    • [x] Using CPUID leaf 0x00000001 on x86/x86-64 (legacy APIC ID)
    • [x] Using CPUID leaf 0x0000000B on x86/x86-64 (Intel APIC ID)
    • [ ] Using CPUID leaf 0x8000001E on x86/x86-64 (AMD APIC ID)
    • [x] Using host_info (Mach)
    • [ ] Using sysfs (Linux)