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Address map database
Heechul Yun edited this page Sep 20, 2019
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3 revisions
This page is to share dram address mapping information of various platforms.
$ sudo ./detect-mc-mapping.sh
Bit6: 293.31
Bit7: 293.38
Bit8: 294.12
Bit9: 293.47
Bit10: 293.42
Bit11: 293.39
Bit12: 780.64
Bit13: 783.43
Bit14: 293.37
Bit15: 293.51
Bit16: 293.33
Bit17: 293.53
Bit18: 293.32
Bit19: 785.48
Bit20: 787.71
Inferred bank/channel bits: 12, 13, 19, 20
$ sudo ./detect-mc-mapping.sh
Bit6: 347.57
Bit7: 337.46
Bit8: 335.15
Bit9: 339.78
Bit10: 344.88
Bit11: 337.86
Bit12: 337.51
Bit13: 629.86
Bit14: 613.87
Bit15: 617.76
Bit16: 608.52
Bit17: 630.11
Bit18: 628.36
Bit19: 631.34
Bit20: 628.51
Bit21: 314.77
Bit22: 315.19
Bit23: 314.81
Bit24: 309.67
Bit25: 314.77
Bit26: 315.27
Bit27: 315.75
Bit28: 315.51
Bit29: 310.42
Inferred bank/channel bits: (13 XOR 17), (14 XOR 18), (15 XOR 19), and (16 XOR 20).
$ sudo ./detect-mc-mapping.sh
Bit6: 262.16
Bit7: 476.67
Bit8: 264.15
Bit9: 262.47
Bit10: 264.78
Bit11: 260.63
Bit12: 263.43
Bit13: 464.09
Bit14: 463.86
Bit15: 463.06
Bit16: 245.24
Bit17: 246.23
Bit18: 248.47
Bit19: 246.42
Bit20: 246.78
Bit21: 249.39
Bit22: 247.70
Bit23: 246.10
Inferred bank/channel bits: 7, 13, 14, 15
$ sudo ./detect-mc-mapping.sh
Bit6: 233.40
Bit7: 312.34
Bit8: 225.84
Bit9: 228.58
Bit10: 228.57
Bit11: 228.03
Bit12: 228.30
Bit13: 323.91
Bit14: 326.17
Bit15: 328.85
Bit16: 217.41
Bit17: 213.49
Bit18: 214.36
Bit19: 218.27
Bit20: 217.89
Bit21: 213.78
Bit22: 216.16
Bit23: 214.47
Inferred bank/channel bits: 7, 13, 14, 15
$ sudo ./mc-mapping-pagemap -p 0.8 -n 3
mem_size (MB): 1594
allocation complete.
worker thread begins
worker thread begins
worker thread begins
Bit6: 256.66 MB/s, 249.36 ns
Bit7: 411.41 MB/s, 155.56 ns
Bit8: 255.51 MB/s, 250.48 ns
Bit9: 251.28 MB/s, 254.69 ns
Bit10: 258.51 MB/s, 247.57 ns
Bit11: 258.60 MB/s, 247.49 ns
Bit12: 247.86 MB/s, 258.21 ns
Bit13: 409.56 MB/s, 156.27 ns
Bit14: 413.98 MB/s, 154.60 ns
Bit15: 417.47 MB/s, 153.30 ns
Bit16: 415.34 MB/s, 154.09 ns
Bit17: 211.40 MB/s, 302.75 ns
Bit18: 212.50 MB/s, 301.17 ns
Bit19: 211.99 MB/s, 301.90 ns
Bit20: 211.59 MB/s, 302.47 ns
Bit21: 213.03 MB/s, 300.42 ns
Bit22: 211.98 MB/s, 301.92 ns
Bit23: 212.28 MB/s, 301.49 ns
Inferred bank/channel bits: 7, 13, 14, 15, 16