Experimental Results:
====================
Test setup:
----------
x86 Sandybridge dual-socket quad core HT-enabled machine, with 128GB RAM.
Memory Region size = 512MB.
Testcase:
--------
Strategy:
Try to allocate and free large chunks of memory (comparable to that of memory
region size) in multiple threads, and examine the number of completely free
memory regions at the end of the run (when all the memory is freed). (Note
that we don't create any pagecache usage here).
Implementation:
Run 20 instances of multi-threaded ebizzy in parallel, with chunksize=256MB,
and no. of threads=32. This means, potentially 20 * 32 threads can allocate/free
memory in parallel, and each alloc/free size will be 256MB, which is half of
the memory region size.
Cmd-line of each ebizzy instance: ./ebizzy -s 268435456 -n 2 -t 32 -S 60
Effectiveness in consolidating allocations:
------------------------------------------
With the above test case, the higher the number of completely free memory
regions at the end of the run, the better is the memory management algorithm
in consolidating allocations.
Here are the results, with vanilla 3.12-rc2 and with this patchset applied:
Free regions at test-start Free regions after test-run
Without patchset 214 8
With patchset 210 202
This shows that this patchset performs tremendously better than vanilla
kernel in terms of keeping the memory allocations consolidated to a minimum
no. of memory regions. Note that the amount of memory consumed at the end of
the run is 0, so it shows the drastic extent to which the mainline kernel can
fragment memory by spreading a handful of pages across many memory regions.
And since this patchset teaches the kernel to understand the memory region
granularity/boundaries and influences the MM decisions effectively, it shows
a significant improvement over mainline.
Below is the log of the variation of the no. of completely free regions
from the beginning to the end of the test, at 1 second intervals (total
test-run takes 1 minute).
Vanilla 3.12-rc2 With this patchset
214 210
214 210
214 210
214 210
214 210
210 208
194 194
165 165
117 145
87 115
34 82
21 57
11 37
4 27
4 13
4 9
4 5
4 5
4 5
4 5
4 5
4 5
4 5
4 5
4 5
4 6
4 7
4 9
4 9
4 9
4 9
4 13
4 15
4 18
4 19
4 21
4 22
4 22
4 25
4 26
4 26
4 28
4 28
4 29
4 29
4 29
4 31
4 75
4 144
4 150
4 150
4 154
4 154
4 154
4 156
4 157
4 157
4 157
4 162
4 163
4 163
4 163
4 163
4 163
4 163
4 164
4 166
4 166
4 166
4 166
4 167
4 167
4 167
4 167
4 167
8 202
It is interesting to also examine the fragmentation of memory by
looking at the per-region statistics added by this patchset.
Statistics for vanilla 3.12-rc2 kernel:
======================================
We can see from the statistics that there is a lot of fragmentation
among the MOVABLE migratetype.
Node 0, zone Normal
pages free 15808914
min 5960
low 7450
high 8940
scanned 0
spanned 16252928
present 16252928
managed 15989606
Per-region page stats present free
Region 0 1 1024
Region 1 131072 130935
Region 2 131072 130989
Region 3 131072 130958
Region 4 131072 130958
Region 5 131072 130945
Region 6 131072 130413
Region 7 131072 130493
Region 8 131072 131801
Region 9 131072 130974
Region 10 131072 130969
Region 11 131072 130007
Region 12 131072 131329
Region 13 131072 131513
Region 14 131072 130988
Region 15 131072 130986
Region 16 131072 130992
Region 17 131072 130962
Region 18 131072 130187
Region 19 131072 131729
Region 20 131072 130875
Region 21 131072 130968
Region 22 131072 130961
Region 23 131072 130966
Region 24 131072 130950
Region 25 131072 130915
Region 26 131072 130438
Region 27 131072 130563
Region 28 131072 131831
Region 29 131072 130109
Region 30 131072 131899
Region 31 131072 130949
Region 32 131072 130975
Region 33 131072 130444
Region 34 131072 131478
Region 35 131072 131002
Region 36 131072 130976
Region 37 131072 130950
Region 38 131072 130222
Region 39 131072 130965
Region 40 131072 130820
Region 41 131072 131332
Region 42 131072 130970
Region 43 131072 131485
Region 44 131072 130964
Region 45 131072 130993
Region 46 131072 130966
Region 47 131072 130907
Region 48 131072 130965
Region 49 131072 129989
Region 50 131072 131912
Region 51 131072 130980
Region 52 131072 130970
Region 53 131072 130962
Region 54 131072 130962
Region 55 131072 130984
Region 56 131072 131000
Region 57 131072 130186
Region 58 131072 131717
Region 59 131072 130942
Region 60 131072 130983
Region 61 131072 130440
Region 62 131072 131504
Region 63 131072 130947
Region 64 131072 130947
Region 65 131072 130977
Region 66 131072 130950
Region 67 131072 130201
Region 68 131072 130948
Region 69 131072 131749
Region 70 131072 130986
Region 71 131072 130406
Region 72 131072 131469
Region 73 131072 130964
Region 74 131072 130983
Region 75 131072 130942
Region 76 131072 130470
Region 77 131072 130980
Region 78 131072 130599
Region 79 131072 131880
Region 80 131072 130961
Region 81 131072 130979
Region 82 131072 130991
Region 83 131072 130136
Region 84 131072 130878
Region 85 131072 131867
Region 86 131072 130994
Region 87 131072 130465
Region 88 131072 131488
Region 89 131072 130937
Region 90 131072 130954
Region 91 131072 129897
Region 92 131072 131970
Region 93 131072 130967
Region 94 131072 130941
Region 95 131072 130191
Region 96 131072 130967
Region 97 131072 131182
Region 98 131072 131494
Region 99 131072 130911
Region 100 131072 130832
Region 101 131072 130445
Region 102 131072 130488
Region 103 131072 131951
Region 104 131072 130937
Region 105 131072 130162
Region 106 131072 131724
Region 107 131072 130954
Region 108 131072 130383
Region 109 131072 130477
Region 110 131072 132062
Region 111 131072 131039
Region 112 131072 130960
Region 113 131072 131062
Region 114 131072 129938
Region 115 131072 131989
Region 116 131072 130903
Region 117 131072 131020
Region 118 131072 131032
Region 119 131072 98662
Region 120 131072 115369
Region 121 131072 107352
Region 122 131072 33060
Region 123 131072 0
Region 124 131071 67
Page block order: 10
Pages per block: 1024
Free pages count per migrate type at order 0 1 2 3 4 5 6 7 8 9 10
Node 0, zone DMA, type Unmovable 1 2 2 1 3 2 0 0 1 1 0
Node 0, zone DMA, type Reclaimable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone DMA, type Movable 0 0 0 0 0 0 0 0 0 0 2
Node 0, zone DMA, type Reserve 0 0 0 0 0 0 0 0 0 0 1
Node 0, zone DMA, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone DMA32, type Unmovable 543 554 431 220 94 18 3 1 0 0 0
Node 0, zone DMA32, type Reclaimable 0 1 0 16 8 1 0 1 0 0 0
Node 0, zone DMA32, type Movable 754 826 846 811 792 748 659 528 364 168 100
Node 0, zone DMA32, type Reserve 0 0 0 0 0 0 0 0 0 0 1
Node 0, zone DMA32, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, type Unmovable 567 1880 2103 849 276 34 0 0 0 0 0
Node 0, zone Normal, type Reclaimable 1 512 363 237 97 16 7 1 0 0 0
Node 0, zone Normal, type Movable 8383 13055 14648 13112 11081 9161 7898 6882 5694 4630 9660
Node 0, zone Normal, type Reserve 0 0 0 0 0 0 0 0 0 0 2
Node 0, zone Normal, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 0 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 1 Movable 75 82 80 85 80 73 76 71 62 48 69
Node 0, zone Normal, R 2 Movable 43 49 54 55 55 55 55 45 46 40 84
Node 0, zone Normal, R 3 Movable 43 50 62 61 60 53 55 54 47 35 85
Node 0, zone Normal, R 4 Movable 40 53 59 58 58 59 57 56 45 35 85
Node 0, zone Normal, R 5 Movable 41 50 49 48 47 44 45 40 37 30 93
Node 0, zone Normal, R 6 Movable 73 86 92 89 84 82 79 66 56 46 72
Node 0, zone Normal, R 7 Movable 73 84 79 86 78 80 80 74 65 48 68
Node 0, zone Normal, R 8 Movable 59 71 78 77 85 85 84 71 56 43 74
Node 0, zone Normal, R 9 Movable 58 64 67 69 69 65 65 64 59 48 73
Node 0, zone Normal, R 10 Movable 53 58 62 61 63 63 61 52 49 45 79
Node 0, zone Normal, R 11 Movable 55 64 68 62 60 61 61 57 47 39 81
Node 0, zone Normal, R 12 Movable 63 97 98 99 92 93 88 84 68 43 68
Node 0, zone Normal, R 13 Movable 29 36 39 39 38 37 36 37 35 27 97
Node 0, zone Normal, R 14 Movable 40 46 54 54 52 53 53 51 46 37 85
Node 0, zone Normal, R 15 Movable 34 46 51 48 48 47 46 45 42 36 88
Node 0, zone Normal, R 16 Movable 46 57 56 58 58 56 55 56 50 39 82
Node 0, zone Normal, R 17 Movable 40 45 52 52 54 52 53 47 38 34 89
Node 0, zone Normal, R 18 Movable 47 54 62 57 57 55 55 50 40 36 86
Node 0, zone Normal, R 19 Movable 49 54 63 61 63 61 60 59 47 48 78
Node 0, zone Normal, R 20 Movable 65 83 87 79 74 69 71 65 43 42 79
Node 0, zone Normal, R 21 Movable 54 67 73 69 71 71 69 60 51 42 78
Node 0, zone Normal, R 22 Movable 51 59 60 65 65 61 57 54 49 41 81
Node 0, zone Normal, R 23 Movable 48 55 62 58 59 56 54 50 45 33 87
Node 0, zone Normal, R 24 Movable 54 68 70 74 70 68 68 65 57 42 76
Node 0, zone Normal, R 25 Movable 60 70 81 79 78 72 70 69 53 46 74
Node 0, zone Normal, R 26 Movable 60 69 78 77 78 76 75 66 59 54 68
Node 0, zone Normal, R 27 Movable 49 65 72 72 65 69 67 63 47 45 77
Node 0, zone Normal, R 28 Movable 67 82 90 89 84 79 79 72 61 43 73
Node 0, zone Normal, R 29 Movable 43 47 47 47 46 47 47 46 36 29 92
Node 0, zone Normal, R 30 Movable 42 45 46 48 48 44 46 45 44 39 87
Node 0, zone Normal, R 31 Movable 77 80 84 79 77 76 72 63 55 42 76
Node 0, zone Normal, R 32 Movable 63 68 68 69 68 67 60 62 51 43 78
Node 0, zone Normal, R 33 Movable 52 66 71 71 70 69 70 66 58 36 78
Node 0, zone Normal, R 34 Movable 48 55 58 60 57 57 56 53 45 41 83
Node 0, zone Normal, R 35 Movable 40 47 49 50 50 50 48 45 41 30 91
Node 0, zone Normal, R 36 Movable 40 50 53 52 54 46 50 46 38 37 88
Node 0, zone Normal, R 37 Movable 56 77 79 75 72 75 71 67 54 44 75
Node 0, zone Normal, R 38 Movable 38 48 52 51 50 45 40 38 40 34 90
Node 0, zone Normal, R 39 Movable 59 69 68 70 69 68 65 59 47 41 80
Node 0, zone Normal, R 40 Movable 34 43 45 43 42 43 44 41 37 34 91
Node 0, zone Normal, R 41 Movable 62 75 86 91 88 84 78 73 52 42 75
Node 0, zone Normal, R 42 Movable 44 59 56 61 61 55 54 52 42 40 84
Node 0, zone Normal, R 43 Movable 45 48 50 53 54 52 49 49 34 35 90
Node 0, zone Normal, R 44 Movable 58 71 69 67 66 66 63 63 52 44 77
Node 0, zone Normal, R 45 Movable 43 51 54 55 53 50 48 48 43 34 88
Node 0, zone Normal, R 46 Movable 52 65 68 70 68 67 68 66 47 47 76
Node 0, zone Normal, R 47 Movable 61 65 69 75 71 70 68 64 55 43 76
Node 0, zone Normal, R 48 Movable 51 63 69 66 62 61 61 62 52 39 80
Node 0, zone Normal, R 49 Movable 51 61 68 69 68 69 64 54 54 41 78
Node 0, zone Normal, R 50 Movable 64 76 76 76 76 73 66 67 53 45 76
Node 0, zone Normal, R 51 Movable 44 52 58 59 57 56 55 48 48 44 81
Node 0, zone Normal, R 52 Movable 48 61 68 68 64 64 63 56 46 45 79
Node 0, zone Normal, R 53 Movable 57 69 72 68 67 65 65 60 49 42 79
Node 0, zone Normal, R 54 Movable 66 82 83 80 78 78 77 64 59 45 73
Node 0, zone Normal, R 55 Movable 44 52 55 51 54 48 49 48 47 38 85
Node 0, zone Normal, R 56 Movable 42 47 50 49 48 49 47 46 45 34 88
Node 0, zone Normal, R 57 Movable 62 72 73 75 74 75 69 66 54 41 76
Node 0, zone Normal, R 58 Movable 63 75 74 71 71 69 67 67 59 42 76
Node 0, zone Normal, R 59 Movable 50 68 67 71 66 65 65 64 51 40 79
Node 0, zone Normal, R 60 Movable 53 59 63 60 58 56 58 52 47 39 83
Node 0, zone Normal, R 61 Movable 58 69 77 70 66 68 65 65 44 42 79
Node 0, zone Normal, R 62 Movable 40 46 51 50 51 49 50 50 42 35 88
Node 0, zone Normal, R 63 Movable 55 64 67 72 68 68 65 65 52 47 75
Node 0, zone Normal, R 64 Movable 47 58 68 66 62 61 59 57 53 42 79
Node 0, zone Normal, R 65 Movable 53 62 62 61 63 61 58 50 51 41 81
Node 0, zone Normal, R 66 Movable 56 65 75 74 73 74 72 65 59 48 72
Node 0, zone Normal, R 67 Movable 43 53 53 54 54 51 49 43 44 31 89
Node 0, zone Normal, R 68 Movable 74 77 82 85 77 79 76 76 57 49 70
Node 0, zone Normal, R 69 Movable 49 54 62 62 60 61 61 57 48 44 80
Node 0, zone Normal, R 70 Movable 64 65 66 64 64 63 64 62 51 37 81
Node 0, zone Normal, R 71 Movable 58 76 83 81 78 79 72 66 57 49 71
Node 0, zone Normal, R 72 Movable 45 56 64 66 64 63 62 59 53 38 81
Node 0, zone Normal, R 73 Movable 54 67 72 73 69 63 67 65 64 45 73
Node 0, zone Normal, R 74 Movable 49 59 62 61 60 53 57 53 43 37 85
Node 0, zone Normal, R 75 Movable 68 77 86 87 81 72 74 68 58 45 73
Node 0, zone Normal, R 76 Movable 56 63 66 61 64 60 60 59 54 38 80
Node 0, zone Normal, R 77 Movable 40 56 61 59 56 58 58 52 45 38 84
Node 0, zone Normal, R 78 Movable 35 44 49 49 48 49 49 50 45 32 88
Node 0, zone Normal, R 79 Movable 52 56 59 55 50 52 53 46 42 34 89
Node 0, zone Normal, R 80 Movable 60 65 75 73 64 69 65 65 56 43 76
Node 0, zone Normal, R 81 Movable 37 49 53 53 52 53 47 48 41 39 86
Node 0, zone Normal, R 82 Movable 55 58 63 61 60 61 59 60 54 41 79
Node 0, zone Normal, R 83 Movable 64 84 98 87 93 87 86 82 64 48 66
Node 0, zone Normal, R 84 Movable 37 47 49 49 49 49 47 47 40 36 88
Node 0, zone Normal, R 85 Movable 40 50 58 57 56 53 51 46 38 34 90
Node 0, zone Normal, R 86 Movable 50 56 58 57 54 56 56 54 47 47 79
Node 0, zone Normal, R 87 Movable 35 51 54 48 50 49 46 44 38 33 90
Node 0, zone Normal, R 88 Movable 60 60 67 68 68 64 64 61 51 44 78
Node 0, zone Normal, R 89 Movable 59 89 83 84 84 81 81 80 63 50 67
Node 0, zone Normal, R 90 Movable 44 61 63 65 64 63 62 55 57 48 75
Node 0, zone Normal, R 91 Movable 63 73 78 80 74 72 73 68 55 55 68
Node 0, zone Normal, R 92 Movable 58 70 75 74 76 74 75 67 53 52 72
Node 0, zone Normal, R 93 Movable 53 67 69 67 65 63 63 54 53 34 83
Node 0, zone Normal, R 94 Movable 69 82 85 84 84 83 84 80 64 49 67
Node 0, zone Normal, R 95 Movable 67 74 78 76 78 72 69 66 52 48 73
Node 0, zone Normal, R 96 Movable 49 61 67 68 68 68 64 64 55 42 77
Node 0, zone Normal, R 97 Movable 78 88 96 94 90 89 85 68 57 49 70
Node 0, zone Normal, R 98 Movable 58 70 70 67 65 67 63 63 56 35 81
Node 0, zone Normal, R 99 Movable 55 66 81 80 80 75 76 69 59 46 72
Node 0, zone Normal, R100 Movable 62 81 86 81 77 74 71 69 56 50 71
Node 0, zone Normal, R101 Movable 67 83 83 81 79 75 76 69 57 44 73
Node 0, zone Normal, R102 Movable 52 58 68 68 64 65 59 50 46 32 86
Node 0, zone Normal, R103 Movable 77 85 82 86 82 75 76 64 53 46 75
Node 0, zone Normal, R104 Movable 69 82 92 92 92 90 89 80 69 47 66
Node 0, zone Normal, R105 Movable 76 81 83 89 89 85 87 75 54 53 67
Node 0, zone Normal, R106 Movable 75 85 90 88 89 83 78 72 46 38 79
Node 0, zone Normal, R107 Movable 50 66 69 70 67 69 65 65 46 40 80
Node 0, zone Normal, R108 Movable 77 95 95 97 90 89 88 74 54 45 71
Node 0, zone Normal, R109 Movable 47 65 67 66 64 63 62 61 50 37 81
Node 0, zone Normal, R110 Movable 16 17 17 15 13 15 15 15 11 9 118
Node 0, zone Normal, R111 Movable 31 32 32 32 32 32 32 30 19 13 109
Node 0, zone Normal, R112 Movable 30 29 40 33 25 28 28 25 19 15 109
Node 0, zone Normal, R113 Movable 10 10 10 8 9 9 9 9 9 7 120
Node 0, zone Normal, R114 Movable 46 46 48 43 47 44 42 42 31 23 97
Node 0, zone Normal, R115 Movable 27 29 28 26 24 24 24 23 20 20 108
Node 0, zone Normal, R116 Movable 43 46 42 43 41 44 45 39 26 12 105
Node 0, zone Normal, R117 Movable 38 37 39 36 32 33 28 27 29 19 104
Node 0, zone Normal, R118 Movable 30 31 29 27 21 23 20 20 17 13 112
Node 0, zone Normal, R119 Movable 340 1039 1218 960 611 261 94 36 14 7 37
Node 0, zone Normal, R120 Movable 514 2102 2401 2023 1473 838 348 76 8 0 0
Node 0, zone Normal, R121 Movable 1034 2065 2561 1913 1163 574 235 62 9 0 0
Node 0, zone Normal, R122 Movable 361 571 734 560 363 181 63 7 1 0 0
Node 0, zone Normal, R123 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R124 Movable 3 2 3 2 0 1 0 0 0 0 0
Number of blocks type Unmovable Reclaimable Movable Reserve Isolate
Node 0, zone DMA 1 0 2 1 0
Node 0, zone DMA32 10 2 495 1 0
Node 0, zone Normal 121 41 15708 2 0
Node 0, zone Normal R 0 0 0 0 1 0
Node 0, zone Normal R 1 0 0 126 2 0
Node 0, zone Normal R 2 0 0 128 0 0
Node 0, zone Normal R 3 0 0 128 0 0
Node 0, zone Normal R 4 0 0 128 0 0
Node 0, zone Normal R 5 0 0 128 0 0
Node 0, zone Normal R 6 0 0 128 0 0
Node 0, zone Normal R 7 0 0 128 0 0
Node 0, zone Normal R 8 0 0 128 0 0
Node 0, zone Normal R 9 0 0 128 0 0
Node 0, zone Normal R 10 0 0 128 0 0
Node 0, zone Normal R 11 0 0 128 0 0
Node 0, zone Normal R 12 0 0 128 0 0
Node 0, zone Normal R 13 0 0 128 0 0
Node 0, zone Normal R 14 0 0 128 0 0
Node 0, zone Normal R 15 0 0 128 0 0
Node 0, zone Normal R 16 0 0 128 0 0
Node 0, zone Normal R 17 0 0 128 0 0
Node 0, zone Normal R 18 0 0 128 0 0
Node 0, zone Normal R 19 0 0 128 0 0
Node 0, zone Normal R 20 0 0 128 0 0
Node 0, zone Normal R 21 0 0 128 0 0
Node 0, zone Normal R 22 0 0 128 0 0
Node 0, zone Normal R 23 0 0 128 0 0
Node 0, zone Normal R 24 0 0 128 0 0
Node 0, zone Normal R 25 0 0 128 0 0
Node 0, zone Normal R 26 0 0 128 0 0
Node 0, zone Normal R 27 0 0 128 0 0
Node 0, zone Normal R 28 0 0 128 0 0
Node 0, zone Normal R 29 0 0 128 0 0
Node 0, zone Normal R 30 0 0 128 0 0
Node 0, zone Normal R 31 0 0 128 0 0
Node 0, zone Normal R 32 0 0 128 0 0
Node 0, zone Normal R 33 0 0 128 0 0
Node 0, zone Normal R 34 0 0 128 0 0
Node 0, zone Normal R 35 0 0 128 0 0
Node 0, zone Normal R 36 0 0 128 0 0
Node 0, zone Normal R 37 0 0 128 0 0
Node 0, zone Normal R 38 0 0 128 0 0
Node 0, zone Normal R 39 0 0 128 0 0
Node 0, zone Normal R 40 0 0 128 0 0
Node 0, zone Normal R 41 0 0 128 0 0
Node 0, zone Normal R 42 0 0 128 0 0
Node 0, zone Normal R 43 0 0 128 0 0
Node 0, zone Normal R 44 0 0 128 0 0
Node 0, zone Normal R 45 0 0 128 0 0
Node 0, zone Normal R 46 0 0 128 0 0
Node 0, zone Normal R 47 0 0 128 0 0
Node 0, zone Normal R 48 0 0 128 0 0
Node 0, zone Normal R 49 0 0 128 0 0
Node 0, zone Normal R 50 0 0 128 0 0
Node 0, zone Normal R 51 0 0 128 0 0
Node 0, zone Normal R 52 0 0 128 0 0
Node 0, zone Normal R 53 0 0 128 0 0
Node 0, zone Normal R 54 0 0 128 0 0
Node 0, zone Normal R 55 0 0 128 0 0
Node 0, zone Normal R 56 0 0 128 0 0
Node 0, zone Normal R 57 0 0 128 0 0
Node 0, zone Normal R 58 0 0 128 0 0
Node 0, zone Normal R 59 0 0 128 0 0
Node 0, zone Normal R 60 0 0 128 0 0
Node 0, zone Normal R 61 0 0 128 0 0
Node 0, zone Normal R 62 0 0 128 0 0
Node 0, zone Normal R 63 0 0 128 0 0
Node 0, zone Normal R 64 0 0 128 0 0
Node 0, zone Normal R 65 0 0 128 0 0
Node 0, zone Normal R 66 0 0 128 0 0
Node 0, zone Normal R 67 0 0 128 0 0
Node 0, zone Normal R 68 0 0 128 0 0
Node 0, zone Normal R 69 0 0 128 0 0
Node 0, zone Normal R 70 0 0 128 0 0
Node 0, zone Normal R 71 0 0 128 0 0
Node 0, zone Normal R 72 0 0 128 0 0
Node 0, zone Normal R 73 0 0 128 0 0
Node 0, zone Normal R 74 0 0 128 0 0
Node 0, zone Normal R 75 0 0 128 0 0
Node 0, zone Normal R 76 0 0 128 0 0
Node 0, zone Normal R 77 0 0 128 0 0
Node 0, zone Normal R 78 0 0 128 0 0
Node 0, zone Normal R 79 0 0 128 0 0
Node 0, zone Normal R 80 0 0 128 0 0
Node 0, zone Normal R 81 0 0 128 0 0
Node 0, zone Normal R 82 0 0 128 0 0
Node 0, zone Normal R 83 0 0 128 0 0
Node 0, zone Normal R 84 0 0 128 0 0
Node 0, zone Normal R 85 0 0 128 0 0
Node 0, zone Normal R 86 0 0 128 0 0
Node 0, zone Normal R 87 0 0 128 0 0
Node 0, zone Normal R 88 0 0 128 0 0
Node 0, zone Normal R 89 0 0 128 0 0
Node 0, zone Normal R 90 0 0 128 0 0
Node 0, zone Normal R 91 0 0 128 0 0
Node 0, zone Normal R 92 0 0 128 0 0
Node 0, zone Normal R 93 0 0 128 0 0
Node 0, zone Normal R 94 0 0 128 0 0
Node 0, zone Normal R 95 0 0 128 0 0
Node 0, zone Normal R 96 0 0 128 0 0
Node 0, zone Normal R 97 0 0 128 0 0
Node 0, zone Normal R 98 0 0 128 0 0
Node 0, zone Normal R 99 0 0 128 0 0
Node 0, zone Normal R100 0 0 128 0 0
Node 0, zone Normal R101 0 0 128 0 0
Node 0, zone Normal R102 0 0 128 0 0
Node 0, zone Normal R103 0 0 128 0 0
Node 0, zone Normal R104 0 0 128 0 0
Node 0, zone Normal R105 0 0 128 0 0
Node 0, zone Normal R106 0 0 128 0 0
Node 0, zone Normal R107 0 0 128 0 0
Node 0, zone Normal R108 0 0 128 0 0
Node 0, zone Normal R109 0 0 128 0 0
Node 0, zone Normal R110 0 0 128 0 0
Node 0, zone Normal R111 0 0 128 0 0
Node 0, zone Normal R112 0 0 128 0 0
Node 0, zone Normal R113 0 0 128 0 0
Node 0, zone Normal R114 0 0 128 0 0
Node 0, zone Normal R115 0 0 128 0 0
Node 0, zone Normal R116 0 0 128 0 0
Node 0, zone Normal R117 0 0 128 0 0
Node 0, zone Normal R118 0 0 128 0 0
Node 0, zone Normal R119 15 20 93 0 0
Node 0, zone Normal R120 3 2 123 0 0
Node 0, zone Normal R121 22 2 104 0 0
Node 0, zone Normal R122 81 17 30 0 0
Node 0, zone Normal R123 0 0 128 0 0
Node 0, zone Normal R124 0 0 128 0 0
Statistics with this patchset applied:
=====================================
Comparing these statistics with that of vanilla kernel, we see that the
fragmentation is significantly lesser, as seen in the MOVABLE migratetype.
Node 0, zone Normal
pages free 15754148
min 5960
low 7450
high 8940
scanned 0
spanned 16252928
present 16252928
managed 15989474
Per-region page stats present free
Region 0 1 1024
Region 1 131072 24206
Region 2 131072 85728
Region 3 131072 69362
Region 4 131072 120699
Region 5 131072 121015
Region 6 131072 131053
Region 7 131072 131072
Region 8 131072 131072
Region 9 131072 131072
Region 10 131072 131069
Region 11 131072 130988
Region 12 131072 131001
Region 13 131072 131067
Region 14 131072 131072
Region 15 131072 131072
Region 16 131072 131072
Region 17 131072 131072
Region 18 131072 131072
Region 19 131072 131072
Region 20 131072 131072
Region 21 131072 131072
Region 22 131072 131072
Region 23 131072 131072
Region 24 131072 131072
Region 25 131072 131072
Region 26 131072 131072
Region 27 131072 131072
Region 28 131072 131031
Region 29 131072 131072
Region 30 131072 131072
Region 31 131072 131072
Region 32 131072 131072
Region 33 131072 131072
Region 34 131072 131036
Region 35 131072 131072
Region 36 131072 131072
Region 37 131072 131064
Region 38 131072 131071
Region 39 131072 131072
Region 40 131072 131036
Region 41 131072 131071
Region 42 131072 131072
Region 43 131072 131072
Region 44 131072 131072
Region 45 131072 131007
Region 46 131072 131072
Region 47 131072 131072
Region 48 131072 131036
Region 49 131072 131072
Region 50 131072 131072
Region 51 131072 131072
Region 52 131072 131072
Region 53 131072 131072
Region 54 131072 131072
Region 55 131072 131038
Region 56 131072 131072
Region 57 131072 131072
Region 58 131072 131071
Region 59 131072 131072
Region 60 131072 131036
Region 61 131072 131065
Region 62 131072 131072
Region 63 131072 131072
Region 64 131072 131071
Region 65 131072 131072
Region 66 131072 131072
Region 67 131072 131072
Region 68 131072 131072
Region 69 131072 131072
Region 70 131072 131072
Region 71 131072 131072
Region 72 131072 131072
Region 73 131072 131072
Region 74 131072 131072
Region 75 131072 131072
Region 76 131072 131072
Region 77 131072 131072
Region 78 131072 131072
Region 79 131072 131072
Region 80 131072 131072
Region 81 131072 131067
Region 82 131072 131072
Region 83 131072 131072
Region 84 131072 130852
Region 85 131072 131072
Region 86 131072 131071
Region 87 131072 131072
Region 88 131072 131072
Region 89 131072 131072
Region 90 131072 131072
Region 91 131072 131072
Region 92 131072 131072
Region 93 131072 131072
Region 94 131072 131072
Region 95 131072 131072
Region 96 131072 131072
Region 97 131072 131072
Region 98 131072 131072
Region 99 131072 131072
Region 100 131072 131072
Region 101 131072 131072
Region 102 131072 131072
Region 103 131072 131072
Region 104 131072 131072
Region 105 131072 131072
Region 106 131072 131072
Region 107 131072 131072
Region 108 131072 131072
Region 109 131072 131072
Region 110 131072 131072
Region 111 131072 131072
Region 112 131072 131072
Region 113 131072 131072
Region 114 131072 131072
Region 115 131072 131072
Region 116 131072 131072
Region 117 131072 131072
Region 118 131072 131072
Region 119 131072 131072
Region 120 131072 131072
Region 121 131072 131072
Region 122 131072 128722
Region 123 131072 0
Region 124 131071 10
Page block order: 10
Pages per block: 1024
Free pages count per migrate type at order 0 1 2 3 4 5 6 7 8 9 10
Node 0, zone DMA, type Unmovable 1 2 2 1 3 2 0 0 1 1 0
Node 0, zone DMA, type Reclaimable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone DMA, type Movable 0 0 0 0 0 0 0 0 0 0 2
Node 0, zone DMA, type Reserve 0 0 0 0 0 0 0 0 0 0 1
Node 0, zone DMA, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone DMA32, type Unmovable 586 714 497 300 160 93 66 45 36 24 80
Node 0, zone DMA32, type Reclaimable 1 1 0 0 1 1 1 1 1 1 0
Node 0, zone DMA32, type Movable 781 661 635 594 495 433 339 227 110 56 178
Node 0, zone DMA32, type Reserve 0 0 0 0 0 0 0 0 0 0 1
Node 0, zone DMA32, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, type Unmovable 4357 4070 4542 3024 1866 955 385 92 8 1 110
Node 0, zone Normal, type Reclaimable 11 0 1 1 0 0 0 0 1 1 82
Node 0, zone Normal, type Movable 207 272 566 504 482 503 456 303 189 120 2676
Node 0, zone Normal, type Reserve 0 0 0 0 0 0 0 0 0 0 2
Node 0, zone Normal, type Isolate 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 0 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 1 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 2 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 3 Movable 58 116 360 320 289 309 276 133 40 7 1
Node 0, zone Normal, R 4 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 5 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 6 Movable 3 11 11 11 11 11 9 10 8 9 119
Node 0, zone Normal, R 7 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 8 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 9 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 10 Movable 3 3 3 1 2 2 2 2 2 2 126
Node 0, zone Normal, R 11 Movable 22 11 16 4 8 5 8 8 8 4 122
Node 0, zone Normal, R 12 Movable 35 25 13 12 13 14 9 10 11 7 119
Node 0, zone Normal, R 13 Movable 1 3 3 3 3 1 2 2 2 2 126
Node 0, zone Normal, R 14 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 15 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 16 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 17 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 18 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 19 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 20 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 21 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 22 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 23 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 24 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 25 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 26 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 27 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 28 Movable 9 9 11 10 12 12 12 10 7 5 121
Node 0, zone Normal, R 29 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 30 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 31 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 32 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 33 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 34 Movable 10 11 11 10 10 7 9 9 9 7 120
Node 0, zone Normal, R 35 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 36 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 37 Movable 2 5 5 5 5 5 5 5 5 5 123
Node 0, zone Normal, R 38 Movable 1 1 1 1 1 1 1 1 1 1 127
Node 0, zone Normal, R 39 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 40 Movable 8 6 6 6 6 7 7 7 7 7 121
Node 0, zone Normal, R 41 Movable 1 1 1 1 1 1 1 1 1 1 127
Node 0, zone Normal, R 42 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 43 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 44 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 45 Movable 7 8 16 17 16 17 17 15 14 13 114
Node 0, zone Normal, R 46 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 47 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 48 Movable 6 5 7 4 7 7 7 7 7 5 122
Node 0, zone Normal, R 49 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 50 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 51 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 52 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 53 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 54 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 55 Movable 10 18 20 18 19 19 19 19 15 9 115
Node 0, zone Normal, R 56 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 57 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 58 Movable 1 1 1 1 1 1 1 1 1 1 127
Node 0, zone Normal, R 59 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 60 Movable 6 9 7 5 6 7 5 6 6 4 123
Node 0, zone Normal, R 61 Movable 7 7 5 6 6 6 6 6 6 6 122
Node 0, zone Normal, R 62 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 63 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 64 Movable 1 1 1 1 1 1 1 1 1 1 127
Node 0, zone Normal, R 65 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 66 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 67 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 68 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 69 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 70 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 71 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 72 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 73 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 74 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 75 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 76 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 77 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 78 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 79 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 80 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 81 Movable 1 3 1 2 2 2 2 2 2 2 126
Node 0, zone Normal, R 82 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 83 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 84 Movable 12 14 57 61 59 56 54 46 33 20 97
Node 0, zone Normal, R 85 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 86 Movable 1 1 1 1 1 1 1 1 1 1 127
Node 0, zone Normal, R 87 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 88 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 89 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 90 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 91 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 92 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 93 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 94 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 95 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 96 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 97 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 98 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R 99 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R100 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R101 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R102 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R103 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R104 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R105 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R106 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R107 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R108 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R109 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R110 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R111 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R112 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R113 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R114 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R115 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R116 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R117 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R118 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R119 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R120 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R121 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R122 Movable 2 2 9 3 3 11 2 1 2 1 124
Node 0, zone Normal, R123 Movable 0 0 0 0 0 0 0 0 0 0 0
Node 0, zone Normal, R124 Movable 0 1 0 1 0 0 0 0 0 0 0
Number of blocks type Unmovable Reclaimable Movable Reserve Isolate
Node 0, zone DMA 1 0 2 1 0
Node 0, zone DMA32 128 0 379 1 0
Node 0, zone Normal 384 128 15359 1 0
Node 0, zone Normal R 0 0 0 0 1 0
Node 0, zone Normal R 1 127 0 0 1 0
Node 0, zone Normal R 2 1 127 0 0 0
Node 0, zone Normal R 3 0 1 127 0 0
Node 0, zone Normal R 4 127 0 1 0 0
Node 0, zone Normal R 5 128 0 0 0 0
Node 0, zone Normal R 6 1 0 127 0 0
Node 0, zone Normal R 7 0 0 128 0 0
Node 0, zone Normal R 8 0 0 128 0 0
Node 0, zone Normal R 9 0 0 128 0 0
Node 0, zone Normal R 10 0 0 128 0 0
Node 0, zone Normal R 11 0 0 128 0 0
Node 0, zone Normal R 12 0 0 128 0 0
Node 0, zone Normal R 13 0 0 128 0 0
Node 0, zone Normal R 14 0 0 128 0 0
Node 0, zone Normal R 15 0 0 128 0 0
Node 0, zone Normal R 16 0 0 128 0 0
Node 0, zone Normal R 17 0 0 128 0 0
Node 0, zone Normal R 18 0 0 128 0 0
Node 0, zone Normal R 19 0 0 128 0 0
Node 0, zone Normal R 20 0 0 128 0 0
Node 0, zone Normal R 21 0 0 128 0 0
Node 0, zone Normal R 22 0 0 128 0 0
Node 0, zone Normal R 23 0 0 128 0 0
Node 0, zone Normal R 24 0 0 128 0 0
Node 0, zone Normal R 25 0 0 128 0 0
Node 0, zone Normal R 26 0 0 128 0 0
Node 0, zone Normal R 27 0 0 128 0 0
Node 0, zone Normal R 28 0 0 128 0 0
Node 0, zone Normal R 29 0 0 128 0 0
Node 0, zone Normal R 30 0 0 128 0 0
Node 0, zone Normal R 31 0 0 128 0 0
Node 0, zone Normal R 32 0 0 128 0 0
Node 0, zone Normal R 33 0 0 128 0 0
Node 0, zone Normal R 34 0 0 128 0 0
Node 0, zone Normal R 35 0 0 128 0 0
Node 0, zone Normal R 36 0 0 128 0 0
Node 0, zone Normal R 37 0 0 128 0 0
Node 0, zone Normal R 38 0 0 128 0 0
Node 0, zone Normal R 39 0 0 128 0 0
Node 0, zone Normal R 40 0 0 128 0 0
Node 0, zone Normal R 41 0 0 128 0 0
Node 0, zone Normal R 42 0 0 128 0 0
Node 0, zone Normal R 43 0 0 128 0 0
Node 0, zone Normal R 44 0 0 128 0 0
Node 0, zone Normal R 45 0 0 128 0 0
Node 0, zone Normal R 46 0 0 128 0 0
Node 0, zone Normal R 47 0 0 128 0 0
Node 0, zone Normal R 48 0 0 128 0 0
Node 0, zone Normal R 49 0 0 128 0 0
Node 0, zone Normal R 50 0 0 128 0 0
Node 0, zone Normal R 51 0 0 128 0 0
Node 0, zone Normal R 52 0 0 128 0 0
Node 0, zone Normal R 53 0 0 128 0 0
Node 0, zone Normal R 54 0 0 128 0 0
Node 0, zone Normal R 55 0 0 128 0 0
Node 0, zone Normal R 56 0 0 128 0 0
Node 0, zone Normal R 57 0 0 128 0 0
Node 0, zone Normal R 58 0 0 128 0 0
Node 0, zone Normal R 59 0 0 128 0 0
Node 0, zone Normal R 60 0 0 128 0 0
Node 0, zone Normal R 61 0 0 128 0 0
Node 0, zone Normal R 62 0 0 128 0 0
Node 0, zone Normal R 63 0 0 128 0 0
Node 0, zone Normal R 64 0 0 128 0 0
Node 0, zone Normal R 65 0 0 128 0 0
Node 0, zone Normal R 66 0 0 128 0 0
Node 0, zone Normal R 67 0 0 128 0 0
Node 0, zone Normal R 68 0 0 128 0 0
Node 0, zone Normal R 69 0 0 128 0 0
Node 0, zone Normal R 70 0 0 128 0 0
Node 0, zone Normal R 71 0 0 128 0 0
Node 0, zone Normal R 72 0 0 128 0 0
Node 0, zone Normal R 73 0 0 128 0 0
Node 0, zone Normal R 74 0 0 128 0 0
Node 0, zone Normal R 75 0 0 128 0 0
Node 0, zone Normal R 76 0 0 128 0 0
Node 0, zone Normal R 77 0 0 128 0 0
Node 0, zone Normal R 78 0 0 128 0 0
Node 0, zone Normal R 79 0 0 128 0 0
Node 0, zone Normal R 80 0 0 128 0 0
Node 0, zone Normal R 81 0 0 128 0 0
Node 0, zone Normal R 82 0 0 128 0 0
Node 0, zone Normal R 83 0 0 128 0 0
Node 0, zone Normal R 84 0 0 128 0 0
Node 0, zone Normal R 85 0 0 128 0 0
Node 0, zone Normal R 86 0 0 128 0 0
Node 0, zone Normal R 87 0 0 128 0 0
Node 0, zone Normal R 88 0 0 128 0 0
Node 0, zone Normal R 89 0 0 128 0 0
Node 0, zone Normal R 90 0 0 128 0 0
Node 0, zone Normal R 91 0 0 128 0 0
Node 0, zone Normal R 92 0 0 128 0 0
Node 0, zone Normal R 93 0 0 128 0 0
Node 0, zone Normal R 94 0 0 128 0 0
Node 0, zone Normal R 95 0 0 128 0 0
Node 0, zone Normal R 96 0 0 128 0 0
Node 0, zone Normal R 97 0 0 128 0 0
Node 0, zone Normal R 98 0 0 128 0 0
Node 0, zone Normal R 99 0 0 128 0 0
Node 0, zone Normal R100 0 0 128 0 0
Node 0, zone Normal R101 0 0 128 0 0
Node 0, zone Normal R102 0 0 128 0 0
Node 0, zone Normal R103 0 0 128 0 0
Node 0, zone Normal R104 0 0 128 0 0
Node 0, zone Normal R105 0 0 128 0 0
Node 0, zone Normal R106 0 0 128 0 0
Node 0, zone Normal R107 0 0 128 0 0
Node 0, zone Normal R108 0 0 128 0 0
Node 0, zone Normal R109 0 0 128 0 0
Node 0, zone Normal R110 0 0 128 0 0
Node 0, zone Normal R111 0 0 128 0 0
Node 0, zone Normal R112 0 0 128 0 0
Node 0, zone Normal R113 0 0 128 0 0
Node 0, zone Normal R114 0 0 128 0 0
Node 0, zone Normal R115 0 0 128 0 0
Node 0, zone Normal R116 0 0 128 0 0
Node 0, zone Normal R117 0 0 128 0 0
Node 0, zone Normal R118 0 0 128 0 0
Node 0, zone Normal R119 0 0 128 0 0
Node 0, zone Normal R120 0 0 128 0 0
Node 0, zone Normal R121 0 0 128 0 0
Node 0, zone Normal R122 0 0 128 0 0
Node 0, zone Normal R123 0 0 128 0 0
Node 0, zone Normal R124 0 0 128 0 0
Performance impact:
------------------
Kernbench was run with and without the patchset. It shows an _improvement_ of
around 6.8% with the patchset applied. (Which is of course a little unexpected;
I'll dig more on that).
Vanilla kernel:
Average Optimal load -j 32 Run (std deviation):
Elapsed Time 687.140000
User Time 4528.030000
System Time 1382.140000
Percent CPU 860.000000
Context Switches 679060.000000
Sleeps 1343514.000000
With patchset:
Average Optimal load -j 32 Run (std deviation):
Elapsed Time 643.930000
User Time 4371.600000
System Time 985.900000
Percent CPU 831.000000
Context Switches 655479.000000
Sleeps 1360223.000000
Regards,
Srivatsa S. Bhat
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