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@mkroening mkroening commented Jan 7, 2026

Depends on rust-osdev/x86_64#574.

@mkroening mkroening changed the title refactor(x86_64/paging): migrate to upstream MappedPageTable::display build(deps): upgrade x86_64 to 0.16 Jan 16, 2026
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Benchmark Results

Details
Benchmark Current: e6dec6a Previous: a2d2e33 Performance Ratio
startup_benchmark Build Time 98.55 s 98.11 s 1.00
startup_benchmark File Size 0.87 MB 0.82 MB 1.06
Startup Time - 1 core 0.92 s (±0.04 s) 0.92 s (±0.04 s) 0.99
Startup Time - 2 cores 0.93 s (±0.04 s) 0.94 s (±0.04 s) 0.99
Startup Time - 4 cores 0.95 s (±0.03 s) 0.95 s (±0.02 s) 0.99
multithreaded_benchmark Build Time 95.83 s 95.65 s 1.00
multithreaded_benchmark File Size 0.97 MB 0.96 MB 1.00
Multithreaded Pi Efficiency - 2 Threads 90.54 % (±9.54 %) 88.13 % (±7.50 %) 1.03
Multithreaded Pi Efficiency - 4 Threads 44.87 % (±3.52 %) 44.56 % (±3.00 %) 1.01
Multithreaded Pi Efficiency - 8 Threads 25.40 % (±2.15 %) 25.85 % (±2.32 %) 0.98
micro_benchmarks Build Time 97.17 s 93.76 s 1.04
micro_benchmarks File Size 0.97 MB 0.97 MB 1.00
Scheduling time - 1 thread 67.83 ticks (±3.51 ticks) 65.74 ticks (±2.62 ticks) 1.03
Scheduling time - 2 threads 38.92 ticks (±5.25 ticks) 38.15 ticks (±5.63 ticks) 1.02
Micro - Time for syscall (getpid) 4.03 ticks (±0.58 ticks) 4.08 ticks (±0.61 ticks) 0.99
Memcpy speed - (built_in) block size 4096 66901.35 MByte/s (±47477.93 MByte/s) 68134.15 MByte/s (±48416.13 MByte/s) 0.98
Memcpy speed - (built_in) block size 1048576 29425.82 MByte/s (±24204.25 MByte/s) 29775.67 MByte/s (±24370.05 MByte/s) 0.99
Memcpy speed - (built_in) block size 16777216 23433.62 MByte/s (±19555.15 MByte/s) 28776.49 MByte/s (±23943.10 MByte/s) 0.81
Memset speed - (built_in) block size 4096 67479.66 MByte/s (±47807.13 MByte/s) 68991.38 MByte/s (±48991.61 MByte/s) 0.98
Memset speed - (built_in) block size 1048576 30210.45 MByte/s (±24644.20 MByte/s) 30519.68 MByte/s (±24790.56 MByte/s) 0.99
Memset speed - (built_in) block size 16777216 24182.24 MByte/s (±20066.75 MByte/s) 29560.49 MByte/s (±24386.41 MByte/s) 0.82
Memcpy speed - (rust) block size 4096 58286.70 MByte/s (±42910.73 MByte/s) 60546.35 MByte/s (±44625.78 MByte/s) 0.96
Memcpy speed - (rust) block size 1048576 29236.96 MByte/s (±24200.07 MByte/s) 29531.83 MByte/s (±24324.31 MByte/s) 0.99
Memcpy speed - (rust) block size 16777216 22381.96 MByte/s (±18731.08 MByte/s) 28814.85 MByte/s (±23984.59 MByte/s) 0.78
Memset speed - (rust) block size 4096 58819.75 MByte/s (±43241.24 MByte/s) 61592.50 MByte/s (±45338.24 MByte/s) 0.95
Memset speed - (rust) block size 1048576 29986.81 MByte/s (±24626.42 MByte/s) 30365.90 MByte/s (±24830.39 MByte/s) 0.99
Memset speed - (rust) block size 16777216 23094.30 MByte/s (±19224.73 MByte/s) 29592.77 MByte/s (±24424.37 MByte/s) 0.78
alloc_benchmarks Build Time 94.70 s 91.53 s 1.03
alloc_benchmarks File Size 0.94 MB 0.89 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 6179.52 Ticks (±65.83 Ticks) 6065.83 Ticks (±70.16 Ticks) 1.02
Allocations - Average Allocation time (no fail) 6179.52 Ticks (±65.83 Ticks) 6065.83 Ticks (±70.16 Ticks) 1.02
Allocations - Average Deallocation time 790.93 Ticks (±124.53 Ticks) 757.49 Ticks (±92.33 Ticks) 1.04
mutex_benchmark Build Time 97.49 s 92.00 s 1.06
mutex_benchmark File Size 0.97 MB 0.97 MB 1.00
Mutex Stress Test Average Time per Iteration - 1 Threads 12.82 ns (±0.62 ns) 12.52 ns (±0.61 ns) 1.02
Mutex Stress Test Average Time per Iteration - 2 Threads 13.34 ns (±0.89 ns) 13.22 ns (±0.90 ns) 1.01

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2 participants