build(deps): update uart_16550 to 0.5

[mkroening]

See rust-osdev/uart_16550#41.

[github-actions]

Benchmark Results

Details

Benchmark	Current: eefd1b8	Previous: 4c22c31	Performance Ratio
startup_benchmark Build Time	89.09 s	90.17 s	0.99 ❗
startup_benchmark File Size	0.79 MB	0.75 MB	1.06 ❗
Startup Time - 1 core	0.81 s (±0.03 s)	0.98 s (±0.03 s)	0.83 ❗
Startup Time - 2 cores	0.81 s (±0.03 s)	0.98 s (±0.03 s)	0.83 ❗
Startup Time - 4 cores	0.82 s (±0.03 s)	1.00 s (±0.03 s)	0.82 ❗
multithreaded_benchmark Build Time	89.91 s	91.64 s	0.98 ❗
multithreaded_benchmark File Size	0.85 MB	0.86 MB	0.99 ❗
Multithreaded Pi Efficiency - 2 Threads	89.58 % (±7.80 %)	89.26 % (±10.81 %)	1.00
Multithreaded Pi Efficiency - 4 Threads	44.53 % (±3.69 %)	44.92 % (±4.32 %)	0.99
Multithreaded Pi Efficiency - 8 Threads	25.83 % (±1.62 %)	25.91 % (±2.37 %)	1.00
micro_benchmarks Build Time	98.46 s	101.61 s	0.97 ❗
micro_benchmarks File Size	0.86 MB	0.86 MB	0.99 ❗
Scheduling time - 1 thread	71.20 ticks (±3.68 ticks)	67.68 ticks (±4.76 ticks)	1.05
Scheduling time - 2 threads	39.85 ticks (±3.85 ticks)	37.13 ticks (±2.98 ticks)	1.07
Micro - Time for syscall (getpid)	3.85 ticks (±0.29 ticks)	3.06 ticks (±0.21 ticks)	1.26 ❗
Memcpy speed - (built_in) block size 4096	62861.67 MByte/s (±44861.11 MByte/s)	62028.17 MByte/s (±44120.92 MByte/s)	1.01
Memcpy speed - (built_in) block size 1048576	29324.69 MByte/s (±24433.61 MByte/s)	29725.68 MByte/s (±24767.71 MByte/s)	0.99
Memcpy speed - (built_in) block size 16777216	25628.03 MByte/s (±21529.96 MByte/s)	23735.01 MByte/s (±19993.82 MByte/s)	1.08
Memset speed - (built_in) block size 4096	63252.06 MByte/s (±45096.15 MByte/s)	62645.46 MByte/s (±44535.77 MByte/s)	1.01
Memset speed - (built_in) block size 1048576	30111.28 MByte/s (±24889.04 MByte/s)	30489.41 MByte/s (±25183.33 MByte/s)	0.99
Memset speed - (built_in) block size 16777216	26370.66 MByte/s (±21982.56 MByte/s)	24493.79 MByte/s (±20492.02 MByte/s)	1.08
Memcpy speed - (rust) block size 4096	56798.32 MByte/s (±41988.54 MByte/s)	55993.21 MByte/s (±41228.70 MByte/s)	1.01
Memcpy speed - (rust) block size 1048576	29559.15 MByte/s (±24604.01 MByte/s)	29227.83 MByte/s (±24343.04 MByte/s)	1.01
Memcpy speed - (rust) block size 16777216	25611.81 MByte/s (±21530.02 MByte/s)	24332.46 MByte/s (±20458.37 MByte/s)	1.05
Memset speed - (rust) block size 4096	57187.47 MByte/s (±42174.68 MByte/s)	56758.80 MByte/s (±41669.95 MByte/s)	1.01
Memset speed - (rust) block size 1048576	30344.36 MByte/s (±25028.29 MByte/s)	29980.38 MByte/s (±24755.59 MByte/s)	1.01
Memset speed - (rust) block size 16777216	26354.96 MByte/s (±21979.91 MByte/s)	25029.32 MByte/s (±20883.16 MByte/s)	1.05
alloc_benchmarks Build Time	92.23 s	97.19 s	0.95 ❗
alloc_benchmarks File Size	0.86 MB	0.82 MB	1.05 ❗
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	6055.75 Ticks (±70.85 Ticks)	6046.09 Ticks (±67.21 Ticks)	1.00
Allocations - Average Allocation time (no fail)	6055.75 Ticks (±70.85 Ticks)	6046.09 Ticks (±67.21 Ticks)	1.00
Allocations - Average Deallocation time	840.12 Ticks (±85.96 Ticks)	833.89 Ticks (±81.37 Ticks)	1.01
mutex_benchmark Build Time	91.19 s	91.39 s	1.00 ❗
mutex_benchmark File Size	0.86 MB	0.86 MB	0.99 ❗
Mutex Stress Test Average Time per Iteration - 1 Threads	13.02 ns (±0.76 ns)	12.88 ns (±0.77 ns)	1.01
Mutex Stress Test Average Time per Iteration - 2 Threads	23.42 ns (±20.87 ns)	24.96 ns (±20.94 ns)	0.94

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

[phip1611]

Please note that this will most likely fail on real hardware. Most null modem cables (for point-to-point communication) ignore the necessary lanes

[mkroening]

Yeah, thanks for pointing that out! I removed the checks entirely, since we don't have any fallback at the moment.