Sept. 15, 1989
Without new VmMachQuickNDirtyCopy optimization for cross-context copies.
Using pdev /hosts/anise/./pdevD1
Write 1 bytes 1000 times , time =    9.0  
Write 2 bytes 1000 times , time =    9.0  
Write 4 bytes 1000 times , time =    8.670
Write 8 bytes 1000 times , time =    8.840
Write 16 bytes 1000 times , time =    8.640
Write 32 bytes 1000 times , time =    8.480
Write 64 bytes 1000 times , time =    8.630
Write 128 bytes 1000 times , time =    8.670
Write 256 bytes 1000 times , time =    8.490
Write 512 bytes 1000 times , time =    8.730
Write 1024 bytes 1000 times , time =    9.20 
Write 2048 bytes 1000 times , time =    8.770
Write 4096 bytes 1000 times , time =    9.380
Write 8192 bytes 1000 times , time =   10.110
Read 1 bytes 1000 times , time =    8.770
Read 2 bytes 1000 times , time =    8.550
Read 4 bytes 1000 times , time =    8.590
Read 8 bytes 1000 times , time =    8.780
Read 16 bytes 1000 times , time =    8.360
Read 32 bytes 1000 times , time =    8.540
Read 64 bytes 1000 times , time =    8.560
Read 128 bytes 1000 times , time =    8.380
Read 256 bytes 1000 times , time =    8.600
Read 512 bytes 1000 times , time =    8.630
Read 1024 bytes 1000 times , time =    8.750
Read 2048 bytes 1000 times , time =    8.930
Read 4096 bytes 1000 times , time =    9.350
Read 8192 bytes 1000 times , time =   10.180
Software termination


With new VmMachQuickNDirtyCopy optimization for cross-context copies.
Using pdev /hosts/anise/./pdevD1
Write 1 bytes 1000 times , time =    1.590
Write 2 bytes 1000 times , time =    1.940
Write 4 bytes 1000 times , time =    1.590
Write 8 bytes 1000 times , time =    1.590
Write 16 bytes 1000 times , time =    1.780
Write 32 bytes 1000 times , time =    1.610
Write 64 bytes 1000 times , time =    1.590
Write 128 bytes 1000 times , time =    1.610
Write 256 bytes 1000 times , time =    1.990
Write 512 bytes 1000 times , time =    1.670
Write 1024 bytes 1000 times , time =    2.100
Write 2048 bytes 1000 times , time =    1.900
Write 4096 bytes 1000 times , time =    2.280
Write 8192 bytes 1000 times , time =    3.210
Read 1 bytes 1000 times , time =    1.650
Read 2 bytes 1000 times , time =    1.820
Read 4 bytes 1000 times , time =    1.620
Read 8 bytes 1000 times , time =    1.640
Read 16 bytes 1000 times , time =    1.830
Read 32 bytes 1000 times , time =    1.630
Read 64 bytes 1000 times , time =    1.630
Read 128 bytes 1000 times , time =    1.820
Read 256 bytes 1000 times , time =    1.640
Read 512 bytes 1000 times , time =    1.660
Read 1024 bytes 1000 times , time =    1.880
Read 2048 bytes 1000 times , time =    1.790
Read 4096 bytes 1000 times , time =    2.70 
Read 8192 bytes 1000 times , time =    2.790
Software termination