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mcdachpappeExactExampl
mcdachpappe
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ExactExampl
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arm64: dts: sdm845: Update Energy Model for sdm845v2
We have performed a total of 18 runs on 3 different devices using freqbench [1]. The results were then averaged to reflect this energy model. This set overall is the best representation of characteristics of power consumption at different frequencies among all runs. Despite small variance on the absolute value, most results show that some frequencies are significantly more efficient than others, for example, 748MHz, 902MHz and 1228MHz of the little cluster. 1 out of 18 human-readable benchmark data has been attached below: --------------------------------------------------------------------- Frequency domains: cpu1 cpu4 Offline CPUs: cpu1 cpu2 cpu3 cpu4 cpu5 cpu6 cpu7 Sampling power every 1000 ms Baseline power usage: 649 mW ===== CPU 1 ===== Frequencies: 300 403 480 576 652 748 825 902 979 1056 1132 1228 1324 1420 1516 1612 1689 1766 300: 1114 3.7 C/MHz 27 mW 7.2 J 41.5 I/mJ 269.4 s 403: 1497 3.7 C/MHz 31 mW 6.2 J 48.0 I/mJ 200.4 s 480: 1782 3.7 C/MHz 38 mW 6.3 J 47.3 I/mJ 168.4 s 576: 2139 3.7 C/MHz 45 mW 6.3 J 47.3 I/mJ 140.3 s 652: 2424 3.7 C/MHz 44 mW 5.4 J 55.6 I/mJ 123.8 s 748: 2780 3.7 C/MHz 50 mW 5.4 J 55.3 I/mJ 107.9 s 825: 3065 3.7 C/MHz 59 mW 5.7 J 52.3 I/mJ 97.9 s 902: 3351 3.7 C/MHz 60 mW 5.4 J 55.9 I/mJ 89.5 s 979: 3636 3.7 C/MHz 72 mW 6.0 J 50.3 I/mJ 82.5 s 1056: 3921 3.7 C/MHz 79 mW 6.1 J 49.5 I/mJ 76.5 s 1132: 4206 3.7 C/MHz 85 mW 6.1 J 49.3 I/mJ 71.3 s 1228: 4562 3.7 C/MHz 84 mW 5.5 J 54.6 I/mJ 65.8 s 1324: 4919 3.7 C/MHz 91 mW 5.5 J 54.3 I/mJ 61.0 s 1420: 5275 3.7 C/MHz 93 mW 5.3 J 56.7 I/mJ 56.9 s 1516: 5632 3.7 C/MHz 108 mW 5.7 J 52.4 I/mJ 53.3 s 1612: 5988 3.7 C/MHz 126 mW 6.3 J 47.6 I/mJ 50.1 s 1689: 6273 3.7 C/MHz 113 mW 5.4 J 55.6 I/mJ 47.8 s 1766: 6558 3.7 C/MHz 106 mW 4.8 J 62.1 I/mJ 45.7 s ===== CPU 4 ===== Frequencies: 825 902 979 1056 1209 1286 1363 1459 1536 1612 1689 1766 1843 1920 1996 2092 2169 2246 2323 2400 2476 2553 2649 2803 825: 5126 6.2 C/MHz 147 mW 8.6 J 34.9 I/mJ 58.5 s 902: 5589 6.2 C/MHz 136 mW 7.3 J 41.0 I/mJ 53.7 s 979: 6091 6.2 C/MHz 156 mW 7.7 J 39.1 I/mJ 49.3 s 1056: 6573 6.2 C/MHz 154 mW 7.0 J 42.6 I/mJ 45.7 s 1209: 7549 6.2 C/MHz 224 mW 8.9 J 33.6 I/mJ 39.8 s 1286: 8011 6.2 C/MHz 236 mW 8.8 J 33.9 I/mJ 37.5 s 1363: 8494 6.2 C/MHz 222 mW 7.8 J 38.3 I/mJ 35.3 s 1459: 9092 6.2 C/MHz 196 mW 6.5 J 46.4 I/mJ 33.0 s 1536: 9578 6.2 C/MHz 260 mW 8.1 J 36.8 I/mJ 31.3 s 1612: 10044 6.2 C/MHz 352 mW 10.5 J 28.5 I/mJ 29.9 s 1689: 10513 6.2 C/MHz 295 mW 8.4 J 35.6 I/mJ 28.6 s 1766: 10982 6.2 C/MHz 244 mW 6.7 J 45.0 I/mJ 27.3 s 1843: 11478 6.2 C/MHz 250 mW 6.5 J 45.8 I/mJ 26.2 s 1920: 11965 6.2 C/MHz 484 mW 12.1 J 24.7 I/mJ 25.1 s 1996: 12446 6.2 C/MHz 516 mW 12.5 J 24.1 I/mJ 24.1 s 2092: 13068 6.2 C/MHz 408 mW 9.4 J 32.0 I/mJ 23.0 s 2169: 13404 6.2 C/MHz 372 mW 8.3 J 36.0 I/mJ 22.4 s 2246: 14019 6.2 C/MHz 525 mW 11.2 J 26.7 I/mJ 21.4 s 2323: 14411 6.2 C/MHz 336 mW 7.0 J 42.8 I/mJ 20.8 s 2400: 14942 6.2 C/MHz 535 mW 10.7 J 27.9 I/mJ 20.1 s 2476: 15312 6.2 C/MHz 888 mW 17.4 J 17.2 I/mJ 19.6 s 2553: 15940 6.2 C/MHz 433 mW 8.2 J 36.8 I/mJ 18.8 s 2649: 16898 6.4 C/MHz 650 mW 11.6 J 26.0 I/mJ 17.8 s 2803: 17444 6.2 C/MHz 893 mW 15.4 J 19.5 I/mJ 17.2 s Benchmark finished! --------------------------------------------------------------------- [1]: https://github.com/kdrag0n/freqbench Signed-off-by: mcdachpappe <noreference@web.de>
1 parent 441ee69 commit ac93e19

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‎arch/arm64/boot/dts/qcom/sdm845-v2.dtsi‎

Lines changed: 66 additions & 88 deletions
Original file line numberDiff line numberDiff line change
@@ -413,65 +413,55 @@
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&energy_costs {
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CPU_COST_0: core-cost0 {
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busy-cost-data = <
416-
300000 21
417-
403200 26
418-
480000 31
419-
576000 36
420-
652800 41
421-
748800 46
422-
825600 53
423-
902400 59
424-
979200 64
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1056000 70
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1132800 79
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1228800 89
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1324800 99
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1420800 108
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1516800 118
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1612800 134
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1689600 143
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1766400 160
416+
300000 29
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403200 32
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480000 36
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576000 46
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652800 45
421+
748800 55
422+
825600 60
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902400 61
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979200 67
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1056000 81
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1132800 86
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1228800 84
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1324800 91
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1420800 93
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1516800 108
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1612800 121
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1689600 113
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1766400 110
434434
>;
435435
idle-cost-data = <
436436
10 8 6 4
437437
>;
438438
};
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CPU_COST_1: core-cost1 {
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busy-cost-data = <
441-
300000 90
442-
403200 113
443-
480000 135
444-
576000 157
445-
652800 175
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748800 198
447-
825600 210
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902400 233
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979200 263
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1056000 285
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1132800 322
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1209600 341
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1286400 379
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1363200 410
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1459200 462
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1536000 503
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1612800 542
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1689600 600
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1766400 649
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1843200 717
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1920000 813
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1996800 866
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2092800 1025
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2169600 1054
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2246400 1130
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2323200 1254
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2400000 1356
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2476800 1503
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2553600 1745
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2649600 2106
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2745600 2200
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2764800 2300
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2784000 2350
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2803200 2400
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825600 146
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902400 137
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979200 155
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1056000 158
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1209600 223
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1286400 236
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1363200 224
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1459200 199
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1536000 266
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1612800 354
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1689600 318
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1766400 249
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1843200 266
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1920000 480
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1996800 504
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2092800 409
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2169600 345
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2246400 537
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2323200 404
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2400000 550
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2476800 829
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2553600 448
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2649600 666
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2803200 916
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>;
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idle-cost-data = <
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25 20 15 10
@@ -504,42 +494,30 @@
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};
505495
CLUSTER_COST_1: cluster-cost1 {
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busy-cost-data = <
507-
300000 24
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403200 24
509-
480000 25
510-
576000 25
511-
652800 26
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748800 27
513-
825600 28
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902400 29
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979200 30
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1056000 32
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1132800 34
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1209600 37
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1286400 40
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1363200 45
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1459200 50
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1536000 57
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1612800 64
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1689600 74
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1766400 84
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1843200 96
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1920000 106
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1996800 113
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2092800 120
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2169600 125
531-
2246400 127
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2323200 130
533-
2400000 135
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2476800 140
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2553600 145
536-
2649600 150
537-
2745600 155
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2764800 160
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2784000 165
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2803200 170
541-
2841600 180
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2956800 190
497+
825600 24
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902400 24
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979200 25
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1056000 25
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1209600 26
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1286400 27
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1363200 28
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1459200 29
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1536000 30
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1612800 32
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1689600 34
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1766400 37
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1843200 40
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1920000 45
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1996800 50
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2092800 57
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2169600 64
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2246400 74
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2323200 84
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2400000 96
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2476800 106
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2553600 113
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2649600 120
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2803200 125
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>;
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idle-cost-data = <
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‎arch/arm64/boot/dts/qcom/sdm845.dtsi‎

Lines changed: 8 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -56,7 +56,7 @@
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compatible = "arm,armv8";
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reg = <0x0 0x0>;
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enable-method = "psci";
59-
efficiency = <1024>;
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efficiency = <611>;
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cache-size = <0x8000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs0>;
@@ -93,7 +93,7 @@
9393
compatible = "arm,armv8";
9494
reg = <0x0 0x100>;
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enable-method = "psci";
96-
efficiency = <1024>;
96+
efficiency = <611>;
9797
cache-size = <0x8000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs0>;
@@ -124,7 +124,7 @@
124124
compatible = "arm,armv8";
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reg = <0x0 0x200>;
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enable-method = "psci";
127-
efficiency = <1024>;
127+
efficiency = <611>;
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cache-size = <0x8000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs0>;
@@ -155,7 +155,7 @@
155155
compatible = "arm,armv8";
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reg = <0x0 0x300>;
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enable-method = "psci";
158-
efficiency = <1024>;
158+
efficiency = <611>;
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cache-size = <0x8000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs0>;
@@ -186,7 +186,7 @@
186186
compatible = "arm,armv8";
187187
reg = <0x0 0x400>;
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enable-method = "psci";
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efficiency = <1740>;
189+
efficiency = <1024>;
190190
cache-size = <0x20000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs1>;
@@ -217,7 +217,7 @@
217217
compatible = "arm,armv8";
218218
reg = <0x0 0x500>;
219219
enable-method = "psci";
220-
efficiency = <1740>;
220+
efficiency = <1024>;
221221
cache-size = <0x20000>;
222222
cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs1>;
@@ -248,7 +248,7 @@
248248
compatible = "arm,armv8";
249249
reg = <0x0 0x600>;
250250
enable-method = "psci";
251-
efficiency = <1740>;
251+
efficiency = <1024>;
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cache-size = <0x20000>;
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cpu-release-addr = <0x0 0x90000000>;
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qcom,lmh-dcvs = <&lmh_dcvs1>;
@@ -279,7 +279,7 @@
279279
compatible = "arm,armv8";
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reg = <0x0 0x700>;
281281
enable-method = "psci";
282-
efficiency = <1740>;
282+
efficiency = <1024>;
283283
cache-size = <0x20000>;
284284
cpu-release-addr = <0x0 0x90000000>;
285285
qcom,lmh-dcvs = <&lmh_dcvs1>;

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