fix(x86_64): correctly report CPUID source for CPU frequency

[mkroening]

This also would have been detected by #2053, eventually.

Closes #2140.

[github-actions]

Benchmark Results

Details

Benchmark	Current: 958e2b0	Previous: 2d23ffb	Performance Ratio
startup_benchmark Build Time	110.83 s	118.50 s	0.94 ❗
startup_benchmark File Size	0.87 MB	0.87 MB	1.00 ❗
Startup Time - 1 core	0.98 s (±0.02 s)	1.00 s (±0.04 s)	0.99
Startup Time - 2 cores	1.00 s (±0.02 s)	1.00 s (±0.02 s)	1.00
Startup Time - 4 cores	0.99 s (±0.02 s)	1.00 s (±0.03 s)	0.99
multithreaded_benchmark Build Time	115.23 s	115.50 s	1.00 ❗
multithreaded_benchmark File Size	0.97 MB	0.97 MB	1.00 ❗
Multithreaded Pi Efficiency - 2 Threads	88.52 % (±10.17 %)	88.03 % (±8.62 %)	1.01
Multithreaded Pi Efficiency - 4 Threads	44.09 % (±4.90 %)	42.57 % (±3.79 %)	1.04
Multithreaded Pi Efficiency - 8 Threads	25.54 % (±2.06 %)	25.19 % (±1.93 %)	1.01
micro_benchmarks Build Time	194.27 s	203.20 s	0.96 ❗
micro_benchmarks File Size	0.98 MB	0.98 MB	1.00 ❗
Scheduling time - 1 thread	69.95 ticks (±4.12 ticks)	74.57 ticks (±4.57 ticks)	0.94
Scheduling time - 2 threads	54.49 ticks (±17.33 ticks)	58.13 ticks (±19.20 ticks)	0.94
Micro - Time for syscall (getpid)	4.56 ticks (±0.32 ticks)	4.72 ticks (±0.28 ticks)	0.97
Memcpy speed - (built_in) block size 4096	59760.24 MByte/s (±42041.20 MByte/s)	57980.15 MByte/s (±41057.14 MByte/s)	1.03
Memcpy speed - (built_in) block size 1048576	28519.80 MByte/s (±23707.27 MByte/s)	29398.14 MByte/s (±24603.24 MByte/s)	0.97
Memcpy speed - (built_in) block size 16777216	27268.38 MByte/s (±22756.83 MByte/s)	21807.26 MByte/s (±18351.73 MByte/s)	1.25
Memset speed - (built_in) block size 4096	60434.89 MByte/s (±42515.19 MByte/s)	58514.11 MByte/s (±41397.63 MByte/s)	1.03
Memset speed - (built_in) block size 1048576	29299.52 MByte/s (±24156.13 MByte/s)	30255.15 MByte/s (±25097.60 MByte/s)	0.97
Memset speed - (built_in) block size 16777216	28041.35 MByte/s (±23209.78 MByte/s)	22078.73 MByte/s (±18455.16 MByte/s)	1.27
Memcpy speed - (rust) block size 4096	50965.75 MByte/s (±36825.25 MByte/s)	50643.07 MByte/s (±36729.99 MByte/s)	1.01
Memcpy speed - (rust) block size 1048576	28344.56 MByte/s (±23522.64 MByte/s)	29155.52 MByte/s (±24480.59 MByte/s)	0.97
Memcpy speed - (rust) block size 16777216	26489.91 MByte/s (±22021.70 MByte/s)	22298.18 MByte/s (±18755.33 MByte/s)	1.19
Memset speed - (rust) block size 4096	51842.03 MByte/s (±37474.64 MByte/s)	51245.51 MByte/s (±37094.70 MByte/s)	1.01
Memset speed - (rust) block size 1048576	29108.88 MByte/s (±23964.47 MByte/s)	30022.86 MByte/s (±24981.74 MByte/s)	0.97
Memset speed - (rust) block size 16777216	27164.98 MByte/s (±22393.37 MByte/s)	22470.73 MByte/s (±18808.02 MByte/s)	1.21
alloc_benchmarks Build Time	189.72 s	188.31 s	1.01 ❗
alloc_benchmarks File Size	0.94 MB	0.94 MB	1.00 ❗
Allocations - Allocation success	100.00 %	100.00 %	1
Allocations - Deallocation success	100.00 %	100.00 %	1
Allocations - Pre-fail Allocations	100.00 %	100.00 %	1
Allocations - Average Allocation time	8716.37 Ticks (±90.42 Ticks)	8666.95 Ticks (±96.42 Ticks)	1.01
Allocations - Average Allocation time (no fail)	8716.37 Ticks (±90.42 Ticks)	8666.95 Ticks (±96.42 Ticks)	1.01
Allocations - Average Deallocation time	1920.53 Ticks (±190.41 Ticks)	1948.27 Ticks (±311.08 Ticks)	0.99
mutex_benchmark Build Time	186.52 s	189.98 s	0.98 ❗
mutex_benchmark File Size	0.97 MB	0.97 MB	1.00 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	15.88 ns (±0.77 ns)	15.98 ns (±0.76 ns)	0.99
Mutex Stress Test Average Time per Iteration - 2 Threads	18.54 ns (±1.89 ns)	18.52 ns (±1.96 ns)	1.00

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