[RFC-ANN] SystemBenchmark.jl

Here is my Dell XPS13 with Win10

Test system ---------------------------
Julia Version 1.4.1
Commit 381693d3df* (2020-04-14 17:20 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-8.0.1 (ORCJIT, skylake)


14×5 DataFrames.DataFrame
│ Row │ cat         │ testname        │ ref_ms      │ test_ms     │ factor   │
│     │ String      │ String          │ Float64     │ Float64     │ Float64  │
├─────┼─────────────┼─────────────────┼─────────────┼─────────────┼──────────┤
│ 1   │ cpu         │ FloatMul        │ 1.134e-6    │ 2.7e-6      │ 2.38095  │
│ 2   │ cpu         │ FloatSin        │ 4.048e-6    │ 1.02e-5     │ 2.51976  │
│ 3   │ cpu         │ VecMulBroad     │ 2.94935e-5  │ 5.40578e-5  │ 1.83287  │
│ 4   │ cpu         │ CPUMatMul       │ 0.018796    │ 0.0457      │ 2.43137  │
│ 5   │ cpu         │ MatMulBroad     │ 0.0042468   │ 0.00531429  │ 1.25136  │
│ 6   │ cpu         │ 3DMulBroad      │ 0.0010416   │ 0.00154     │ 1.47849  │
│ 7   │ cpu         │ FFMPEGH264Write │ 105.579     │ 398.7       │ 3.77633  │
│ 8   │ mem         │ DeepCopy        │ 0.000177585 │ 0.000242898 │ 1.36779  │
│ 9   │ diskio      │ DiskWrite1KB    │ 0.031872    │ 0.256999    │ 8.06347  │
│ 10  │ diskio      │ DiskWrite1MB    │ 0.650659    │ 0.62255     │ 0.956799 │
│ 11  │ diskio      │ DiskRead1KB     │ 0.00681275  │ 0.083599    │ 12.271   │
│ 12  │ diskio      │ DiskRead1MB     │ 0.144945    │ 0.2891      │ 1.99455  │
│ 13  │ loading     │ JuliaLoad       │ 91.1325     │ 293.288     │ 3.21826  │
│ 14  │ compilation │ compilecache    │ 110.3       │ 198.207     │ 1.79699  │