x86_64: feature - preemptive multithreading

[zyuiop]

This PR adds a simple preemptive multi-threading feature, which automatically sets a timer to run the scheduler.reschedule() function at least once every 100us.

Known issues for now:

• usleep does not work correctly in threads

[github-actions]

Benchmark Results

Benchmark	Current: 8875871	Previous: 40e0c6e	Performance Ratio
startup_benchmark Build Time	135.85 s	136.14 s	1.00
startup_benchmark File Size	0.90 MB	0.90 MB	1.00
Startup Time - 1 core	0.91 s (±0.02 s)	0.94 s (±0.02 s)	0.98
Startup Time - 2 cores	0.92 s (±0.02 s)	0.92 s (±0.03 s)	1.01
Startup Time - 4 cores	0.93 s (±0.02 s)	0.96 s (±0.03 s)	0.97
multithreaded_benchmark Build Time	132.81 s	140.97 s	0.94
multithreaded_benchmark File Size	1.01 MB	1.01 MB	1.00
Multithreaded Pi Efficiency - 2 Threads	2.29 % (±11.01 %)	2.17 % (±10.40 %)	1.06
Multithreaded Pi Efficiency - 4 Threads	1.57 % (±7.52 %)	1.51 % (±7.26 %)	1.04
Multithreaded Pi Efficiency - 8 Threads	0.78 % (±3.74 %)	0.77 % (±3.68 %)	1.02
micro_benchmarks Build Time	163.41 s	171.42 s	0.95
micro_benchmarks File Size	1.01 MB	1.01 MB	1.00
Scheduling time - 1 thread	2.79 ticks (±13.39 ticks)	2.77 ticks (±13.29 ticks)	1.01
Scheduling time - 2 threads	1.32 ticks (±6.34 ticks)	1.75 ticks (±8.39 ticks)	0.76
Micro - Time for syscall (getpid)	0.16 ticks (±0.76 ticks)	0.12 ticks (±0.58 ticks)	1.31
Memcpy speed - (built_in) block size 4096	988.92 MByte/s (±4746.84 MByte/s)	1816.86 MByte/s (±8720.93 MByte/s)	0.54
Memcpy speed - (built_in) block size 1048576	732.96 MByte/s (±3518.22 MByte/s)	745.11 MByte/s (±3576.55 MByte/s)	0.98
Memcpy speed - (built_in) block size 16777216	225.44 MByte/s (±1082.13 MByte/s)	219.45 MByte/s (±1053.36 MByte/s)	1.03
Memset speed - (built_in) block size 4096	1224.49 MByte/s (±5877.55 MByte/s)	1875.00 MByte/s (±9000.00 MByte/s)	0.65
Memset speed - (built_in) block size 1048576	1002.93 MByte/s (±4814.08 MByte/s)	1029.20 MByte/s (±4940.18 MByte/s)	0.97
Memset speed - (built_in) block size 16777216	953.87 MByte/s (±4578.58 MByte/s)	924.64 MByte/s (±4438.25 MByte/s)	1.03
Memcpy speed - (rust) block size 4096	1165.05 MByte/s (±5592.23 MByte/s)	1411.76 MByte/s (±6776.47 MByte/s)	0.83
Memcpy speed - (rust) block size 1048576	679.20 MByte/s (±3260.15 MByte/s)	693.90 MByte/s (±3330.73 MByte/s)	0.98
Memcpy speed - (rust) block size 16777216	224.48 MByte/s (±1077.51 MByte/s)	219.67 MByte/s (±1054.40 MByte/s)	1.02
Memset speed - (rust) block size 4096	1395.35 MByte/s (±6697.67 MByte/s)	1791.04 MByte/s (±8597.01 MByte/s)	0.78
Memset speed - (rust) block size 1048576	990.30 MByte/s (±4753.42 MByte/s)	1105.00 MByte/s (±5304.01 MByte/s)	0.90
Memset speed - (rust) block size 16777216	933.61 MByte/s (±4481.34 MByte/s)	954.96 MByte/s (±4583.81 MByte/s)	0.98
alloc_benchmarks Build Time	158.76 s	157.27 s	1.01
alloc_benchmarks File Size	0.97 MB	0.97 MB	1.00
Allocations - Allocation success	2.00 % (±13.86 %)	2.00 % (±13.86 %)	1
Allocations - Deallocation success	1.40 % (±9.69 %)	1.40 % (±9.67 %)	1.00
Allocations - Pre-fail Allocations	2.00 % (±13.86 %)	2.00 % (±13.86 %)	1
Allocations - Average Allocation time	252.62 Ticks (±1750.57 Ticks)	262.62 Ticks (±1819.84 Ticks)	0.96
Allocations - Average Allocation time (no fail)	252.62 Ticks (±1750.57 Ticks)	262.62 Ticks (±1819.84 Ticks)	0.96
Allocations - Average Deallocation time	16.99 Ticks (±117.75 Ticks)	17.05 Ticks (±118.18 Ticks)	1.00
mutex_benchmark Build Time	161.78 s	159.65 s	1.01
mutex_benchmark File Size	1.01 MB	1.01 MB	1.00
Mutex Stress Test Average Time per Iteration - 1 Threads	0.32 ns (±2.22 ns)	0.36 ns (±2.49 ns)	0.89
Mutex Stress Test Average Time per Iteration - 2 Threads	0.40 ns (±2.77 ns)	0.38 ns (±2.63 ns)	1.05

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