x86_64: support nested pages splitting

[zyuiop]

Allows unmapping/mapping a page with a size lower than the actual mapping

[github-actions]

Benchmark Results

Details

Benchmark	Current: 59ea124	Previous: 28c7089	Performance Ratio
startup_benchmark Build Time	109.58 s	115.28 s	0.95 ❗
startup_benchmark File Size	0.77 MB	0.77 MB	1.01 ❗
Startup Time - 1 core	0.96 s (±0.04 s)	1.00 s (±0.03 s)	0.96
Startup Time - 2 cores	1.00 s (±0.06 s)	1.04 s (±0.05 s)	0.97
Startup Time - 4 cores	0.97 s (±0.03 s)	1.00 s (±0.06 s)	0.97
multithreaded_benchmark Build Time	104.24 s	118.33 s	0.88 ❗
multithreaded_benchmark File Size	0.87 MB	0.87 MB	1.00 ❗
Multithreaded Pi Efficiency - 2 Threads	96.66 % (±3.20 %)	92.34 % (±11.70 %)	1.05
Multithreaded Pi Efficiency - 4 Threads	46.79 % (±2.05 %)	45.83 % (±5.87 %)	1.02
Multithreaded Pi Efficiency - 8 Threads	27.07 % (±1.72 %)	25.71 % (±3.50 %)	1.05
micro_benchmarks Build Time	94.38 s	96.08 s	0.98 ❗
micro_benchmarks File Size	0.87 MB	0.88 MB	1.00 ❗
Scheduling time - 1 thread	74.37 ticks (±3.92 ticks)	73.85 ticks (±3.74 ticks)	1.01
Scheduling time - 2 threads	42.32 ticks (±4.65 ticks)	41.46 ticks (±4.37 ticks)	1.02
Micro - Time for syscall (getpid)	3.90 ticks (±0.28 ticks)	3.08 ticks (±0.19 ticks)	1.27 ❗
Memcpy speed - (built_in) block size 4096	75589.30 MByte/s (±52053.92 MByte/s)	73208.48 MByte/s (±50616.82 MByte/s)	1.03
Memcpy speed - (built_in) block size 1048576	29549.36 MByte/s (±24333.44 MByte/s)	29392.18 MByte/s (±24125.47 MByte/s)	1.01
Memcpy speed - (built_in) block size 16777216	25853.59 MByte/s (±21333.65 MByte/s)	23751.74 MByte/s (±19605.56 MByte/s)	1.09
Memset speed - (built_in) block size 4096	75648.42 MByte/s (±52095.67 MByte/s)	73313.38 MByte/s (±50689.78 MByte/s)	1.03
Memset speed - (built_in) block size 1048576	30310.52 MByte/s (±24775.84 MByte/s)	30169.43 MByte/s (±24587.38 MByte/s)	1.00
Memset speed - (built_in) block size 16777216	26593.53 MByte/s (±21795.79 MByte/s)	24402.29 MByte/s (±20008.02 MByte/s)	1.09
Memcpy speed - (rust) block size 4096	66405.52 MByte/s (±46236.05 MByte/s)	66427.37 MByte/s (±46490.49 MByte/s)	1.00
Memcpy speed - (rust) block size 1048576	29379.96 MByte/s (±24170.46 MByte/s)	29425.11 MByte/s (±24175.79 MByte/s)	1.00
Memcpy speed - (rust) block size 16777216	25844.97 MByte/s (±21284.86 MByte/s)	24403.77 MByte/s (±20179.96 MByte/s)	1.06
Memset speed - (rust) block size 4096	66885.17 MByte/s (±46630.79 MByte/s)	66262.32 MByte/s (±46403.75 MByte/s)	1.01
Memset speed - (rust) block size 1048576	30141.63 MByte/s (±24613.36 MByte/s)	30172.11 MByte/s (±24599.55 MByte/s)	1.00
Memset speed - (rust) block size 16777216	26598.46 MByte/s (±21762.44 MByte/s)	25069.95 MByte/s (±20590.63 MByte/s)	1.06
alloc_benchmarks Build Time	90.03 s	91.43 s	0.98 ❗
alloc_benchmarks File Size	0.85 MB	0.85 MB	1.01 ❗
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	4666.18 Ticks (±58.47 Ticks)	4633.96 Ticks (±62.19 Ticks)	1.01
Allocations - Average Allocation time (no fail)	4666.18 Ticks (±58.47 Ticks)	4633.96 Ticks (±62.19 Ticks)	1.01
Allocations - Average Deallocation time	989.97 Ticks (±118.05 Ticks)	683.28 Ticks (±99.25 Ticks)	1.45 ❗
mutex_benchmark Build Time	91.48 s	90.68 s	1.01 ❗
mutex_benchmark File Size	0.88 MB	0.88 MB	1.00 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	13.84 ns (±0.58 ns)	13.82 ns (±0.84 ns)	1.00
Mutex Stress Test Average Time per Iteration - 2 Threads	16.52 ns (±8.23 ns)	14.48 ns (±0.75 ns)	1.14

This comment was automatically generated by workflow using github-action-benchmark.