creating 8.0 GiB test file (once)…
        random     4 KiB nocache=1 t=1:      66.9 MB/s
        random     4 KiB nocache=1 t=4:     254.2 MB/s
        random     4 KiB nocache=1 t=8:     479.9 MB/s
        random    16 KiB nocache=1 t=1:     271.5 MB/s
        random    16 KiB nocache=1 t=4:    1020.1 MB/s
        random    16 KiB nocache=1 t=8:    1914.0 MB/s
        random    64 KiB nocache=1 t=1:     769.5 MB/s
        random    64 KiB nocache=1 t=4:    2917.4 MB/s
        random    64 KiB nocache=1 t=8:    5137.6 MB/s
        random   256 KiB nocache=1 t=1:    2302.5 MB/s
        random   256 KiB nocache=1 t=4:    8134.0 MB/s
        random   256 KiB nocache=1 t=8:   11590.5 MB/s
        random  1024 KiB nocache=1 t=1:    4555.8 MB/s
        random  1024 KiB nocache=1 t=4:   13627.6 MB/s
        random  1024 KiB nocache=1 t=8:   13788.8 MB/s
        random  4096 KiB nocache=1 t=1:   12402.6 MB/s
        random  4096 KiB nocache=1 t=4:   48302.3 MB/s
        random  4096 KiB nocache=1 t=8:   54669.7 MB/s
    sequential     4 KiB nocache=1 t=1:     533.2 MB/s
    sequential     4 KiB nocache=1 t=4:     808.9 MB/s
    sequential     4 KiB nocache=1 t=8:    1278.1 MB/s
    sequential    16 KiB nocache=1 t=1:    1683.5 MB/s
    sequential    16 KiB nocache=1 t=4:    3235.6 MB/s
    sequential    16 KiB nocache=1 t=8:    4610.0 MB/s
    sequential    64 KiB nocache=1 t=1:    2297.1 MB/s
    sequential    64 KiB nocache=1 t=4:    8909.2 MB/s
    sequential    64 KiB nocache=1 t=8:   14453.3 MB/s
    sequential   256 KiB nocache=1 t=1:    6645.8 MB/s
    sequential   256 KiB nocache=1 t=4:   24105.9 MB/s
    sequential   256 KiB nocache=1 t=8:   27404.6 MB/s
    sequential  1024 KiB nocache=1 t=1:   12139.1 MB/s
    sequential  1024 KiB nocache=1 t=4:   17844.4 MB/s
    sequential  1024 KiB nocache=1 t=8:   34075.1 MB/s
    sequential  4096 KiB nocache=1 t=1:   14030.8 MB/s
    sequential  4096 KiB nocache=1 t=4:   46677.5 MB/s
    sequential  4096 KiB nocache=1 t=8:   52861.6 MB/s
        random     4 KiB nocache=0 t=1:    4833.8 MB/s
        random     4 KiB nocache=0 t=4:    1297.7 MB/s
        random     4 KiB nocache=0 t=8:     838.6 MB/s
        random    16 KiB nocache=0 t=1:   13794.4 MB/s
        random    16 KiB nocache=0 t=4:    6611.9 MB/s
        random    16 KiB nocache=0 t=8:    3239.0 MB/s
        random    64 KiB nocache=0 t=1:   25056.9 MB/s
        random    64 KiB nocache=0 t=4:   18890.1 MB/s
        random    64 KiB nocache=0 t=8:   12634.3 MB/s
        random   256 KiB nocache=0 t=1:   37768.7 MB/s
        random   256 KiB nocache=0 t=4:   76369.7 MB/s
        random   256 KiB nocache=0 t=8:   46092.8 MB/s
        random  1024 KiB nocache=0 t=1:   42521.2 MB/s
        random  1024 KiB nocache=0 t=4:  117590.7 MB/s
        random  1024 KiB nocache=0 t=8:  136162.5 MB/s
        random  4096 KiB nocache=0 t=1:   42051.2 MB/s
        random  4096 KiB nocache=0 t=4:   90258.2 MB/s
        random  4096 KiB nocache=0 t=8:  104391.2 MB/s
    sequential     4 KiB nocache=0 t=1:    9169.6 MB/s
    sequential     4 KiB nocache=0 t=4:    1458.5 MB/s
    sequential     4 KiB nocache=0 t=8:     869.9 MB/s
    sequential    16 KiB nocache=0 t=1:   21617.5 MB/s
    sequential    16 KiB nocache=0 t=4:    6491.6 MB/s
    sequential    16 KiB nocache=0 t=8:    3326.3 MB/s
    sequential    64 KiB nocache=0 t=1:   29957.4 MB/s
    sequential    64 KiB nocache=0 t=4:   17569.6 MB/s
    sequential    64 KiB nocache=0 t=8:   12489.8 MB/s
    sequential   256 KiB nocache=0 t=1:   39164.7 MB/s
    sequential   256 KiB nocache=0 t=4:   76053.6 MB/s
    sequential   256 KiB nocache=0 t=8:   45630.6 MB/s
    sequential  1024 KiB nocache=0 t=1:   42748.7 MB/s
    sequential  1024 KiB nocache=0 t=4:  115452.8 MB/s
    sequential  1024 KiB nocache=0 t=8:  135141.7 MB/s
    sequential  4096 KiB nocache=0 t=1:   41845.6 MB/s
    sequential  4096 KiB nocache=0 t=4:   89032.2 MB/s
    sequential  4096 KiB nocache=0 t=8:  102950.7 MB/s
recreating test file to evict cached pages before GPU-load phase…
re-running key cells under concurrent Metal (MLX) matmul load…
GPU+    random     4 KiB nocache=1 t=8:     478.4 MB/s
GPU+    random    16 KiB nocache=1 t=8:    1888.0 MB/s
GPU+    random    64 KiB nocache=1 t=8:    5351.3 MB/s
GPU+    random   256 KiB nocache=1 t=8:   11609.0 MB/s
GPU+    random  1024 KiB nocache=1 t=8:   13393.4 MB/s
GPU+    random  4096 KiB nocache=1 t=8:   30955.8 MB/s

wrote /Users/simon-pierreboucher/Desktop/localvm-research/results/expH_ssd_feasibility/20260812T034359Z/results.json