feat(fs): add dev filesystem and (u)random files

[mkroening]

Extracted from #2422. Needed a rebase onto f202872.

[github-actions]

Benchmark Results

Details

Benchmark	Current: 4b6b334	Previous: 0e06134	Performance Ratio
startup_benchmark Build Time	113.69 s	114.75 s	0.99 ❗
startup_benchmark File Size	0.77 MB	0.75 MB	1.02 ❗
Startup Time - 1 core	1.02 s (±0.06 s)	1.03 s (±0.05 s)	0.99
Startup Time - 2 cores	1.02 s (±0.04 s)	1.00 s (±0.04 s)	1.02
Startup Time - 4 cores	1.02 s (±0.03 s)	1.05 s (±0.06 s)	0.97
multithreaded_benchmark Build Time	111.95 s	118.19 s	0.95 ❗
multithreaded_benchmark File Size	0.86 MB	0.87 MB	1.00 ❗
Multithreaded Pi Efficiency - 2 Threads	85.61 % (±17.26 %)	88.13 % (±17.77 %)	0.97
Multithreaded Pi Efficiency - 4 Threads	42.10 % (±8.32 %)	43.83 % (±8.68 %)	0.96
Multithreaded Pi Efficiency - 8 Threads	23.52 % (±4.61 %)	24.19 % (±4.32 %)	0.97
micro_benchmarks Build Time	94.17 s	95.80 s	0.98 ❗
micro_benchmarks File Size	0.87 MB	0.87 MB	1.00 ❗
Scheduling time - 1 thread	74.53 ticks (±3.96 ticks)	73.66 ticks (±3.11 ticks)	1.01
Scheduling time - 2 threads	40.98 ticks (±4.56 ticks)	42.62 ticks (±4.47 ticks)	0.96
Micro - Time for syscall (getpid)	3.77 ticks (±0.27 ticks)	3.97 ticks (±0.24 ticks)	0.95
Memcpy speed - (built_in) block size 4096	75689.30 MByte/s (±52191.29 MByte/s)	74285.81 MByte/s (±51386.38 MByte/s)	1.02
Memcpy speed - (built_in) block size 1048576	29441.09 MByte/s (±24200.26 MByte/s)	29225.43 MByte/s (±24061.57 MByte/s)	1.01
Memcpy speed - (built_in) block size 16777216	24010.50 MByte/s (±19670.99 MByte/s)	24481.29 MByte/s (±20083.82 MByte/s)	0.98
Memset speed - (built_in) block size 4096	75788.73 MByte/s (±52272.39 MByte/s)	74360.40 MByte/s (±51439.53 MByte/s)	1.02
Memset speed - (built_in) block size 1048576	30189.85 MByte/s (±24625.91 MByte/s)	29962.87 MByte/s (±24486.09 MByte/s)	1.01
Memset speed - (built_in) block size 16777216	24669.72 MByte/s (±20082.61 MByte/s)	25226.63 MByte/s (±20580.18 MByte/s)	0.98
Memcpy speed - (rust) block size 4096	67486.93 MByte/s (±47005.18 MByte/s)	65746.63 MByte/s (±45737.46 MByte/s)	1.03
Memcpy speed - (rust) block size 1048576	29447.31 MByte/s (±24207.13 MByte/s)	29209.13 MByte/s (±23985.94 MByte/s)	1.01
Memcpy speed - (rust) block size 16777216	23832.10 MByte/s (±19712.31 MByte/s)	23697.58 MByte/s (±19489.14 MByte/s)	1.01
Memset speed - (rust) block size 4096	67889.40 MByte/s (±47276.13 MByte/s)	66213.47 MByte/s (±46120.45 MByte/s)	1.03
Memset speed - (rust) block size 1048576	30210.40 MByte/s (±24645.37 MByte/s)	29959.89 MByte/s (±24426.81 MByte/s)	1.01
Memset speed - (rust) block size 16777216	24162.40 MByte/s (±19847.07 MByte/s)	24144.16 MByte/s (±19717.09 MByte/s)	1.00
alloc_benchmarks Build Time	91.57 s	90.67 s	1.01 ❗
alloc_benchmarks File Size	0.84 MB	0.83 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	4039.36 Ticks (±66.61 Ticks)	4059.19 Ticks (±54.22 Ticks)	1.00
Allocations - Average Allocation time (no fail)	4039.36 Ticks (±66.61 Ticks)	4059.19 Ticks (±54.22 Ticks)	1.00
Allocations - Average Deallocation time	678.92 Ticks (±56.86 Ticks)	686.32 Ticks (±49.99 Ticks)	0.99
mutex_benchmark Build Time	91.11 s	90.77 s	1.00 ❗
mutex_benchmark File Size	0.87 MB	0.87 MB	1.00 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	13.94 ns (±0.70 ns)	13.46 ns (±0.64 ns)	1.04
Mutex Stress Test Average Time per Iteration - 2 Threads	18.54 ns (±4.16 ns)	15.42 ns (±9.10 ns)	1.20

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