File size: 1,855 Bytes
71687cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | # -*- coding: utf-8 -*-
#
# Copyright (c) 2024 Anders Høst
#
from __future__ import print_function
import struct
import cpuid
def cpu_vendor(cpu):
_, b, c, d = cpu(0)
return struct.pack("III", b, d, c).decode("utf-8")
def cpu_name(cpu):
name = "".join((struct.pack("IIII", *cpu(0x80000000 + i)).decode("utf-8")
for i in range(2, 5)))
return name.split('\x00', 1)[0]
def is_set(cpu, leaf, subleaf, reg_idx, bit):
"""
@param {leaf} %eax
@param {sublead} %ecx, 0 in most cases
@param {reg_idx} idx of [%eax, %ebx, %ecx, %edx], 0-based
@param {bit} bit of reg selected by {reg_idx}, 0-based
"""
regs = cpu(leaf, subleaf)
if (1 << bit) & regs[reg_idx]:
return "Yes"
else:
return "--"
if __name__ == "__main__":
cpu = cpuid.CPUID()
print("Vendor ID : %s" % cpu_vendor(cpu))
print("CPU name : %s" % cpu_name(cpu))
print()
print("Vector instructions supported:")
print("SSE : %s" % is_set(cpu, 1, 0, 3, 25))
print("SSE2 : %s" % is_set(cpu, 1, 0, 3, 26))
print("SSE3 : %s" % is_set(cpu, 1, 0, 2, 0))
print("SSSE3 : %s" % is_set(cpu, 1, 0, 2, 9))
print("SSE4.1 : %s" % is_set(cpu, 1, 0, 2, 19))
print("SSE4.2 : %s" % is_set(cpu, 1, 0, 2, 20))
print("SSE4a : %s" % is_set(cpu, 0x80000001, 0, 2, 6))
print("AVX : %s" % is_set(cpu, 1, 0, 2, 28))
print("AVX2 : %s" % is_set(cpu, 7, 0, 1, 5))
print("BMI1 : %s" % is_set(cpu, 7, 0, 1, 3))
print("BMI2 : %s" % is_set(cpu, 7, 0, 1, 8))
# Intel RDT CMT/MBM
print("L3 Monitoring : %s" % is_set(cpu, 0xf, 0, 3, 1))
print("L3 Occupancy : %s" % is_set(cpu, 0xf, 1, 3, 0))
print("L3 Total BW : %s" % is_set(cpu, 0xf, 1, 3, 1))
print("L3 Local BW : %s" % is_set(cpu, 0xf, 1, 3, 2))
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