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fix(simulation): correct exponential sampling and cache behavior logic

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- Fixed incorrect use of exponential sampling for `next_request` and `next_refresh` timings.
- Adjusted cache eviction logic to properly handle capacity checks.
- Improved simulation output and logging for least accessed objects.
- Corrected CSV export to include index labels for better data clarity.
- Reran experiments

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>
This commit is contained in:
Tuan-Dat Tran
2024-11-28 11:19:04 +01:00
parent dea6004160
commit 09b943e41d
41 changed files with 1828 additions and 1435 deletions
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200
experiments/No_Refresh_0_5s_ttl/details.csv
View File

@@ -1,100 +1,100 @@
,access_count,hits,misses,mu,lambda,hit_rate,avg_age
1,664,224,440,0,1,10.38,0.25892857142857145
2,212,22,190,0,3,32.39,0.36363636363636365
3,673,218,455,0,1,34.6,0.24311926605504589
4,711,246,465,0,1,19.13,0.25609756097560976
5,345,66,279,0,2,31.74,0.24242424242424243
6,649,206,443,0,1,10.22,0.24757281553398058
7,137,14,123,0,5,32.45,0.21428571428571427
8,681,221,460,0,1,34.4,0.2579185520361991
9,689,237,452,0,1,34.18,0.23628691983122363
10,667,228,439,0,1,21.95,0.2236842105263158
11,328,72,256,0,2,34.97,0.2361111111111111
12,692,242,450,0,1,32.21,0.30578512396694213
13,683,220,463,0,1,33.62,0.22727272727272727
14,696,234,462,0,1,20.35,0.2692307692307692
15,344,70,274,0,2,18.4,0.2
16,326,60,266,0,2,29.9,0.2
17,689,206,483,0,1,32.85,0.2524271844660194
18,691,227,464,0,1,11.87,0.24669603524229075
19,219,26,193,0,3,34.84,0.2692307692307692
20,732,255,477,0,1,35.05,0.25882352941176473
21,739,259,480,0,1,34.55,0.21235521235521235
22,683,236,447,0,1,35.22,0.288135593220339
23,670,236,434,0,1,19.94,0.19915254237288135
24,331,66,265,0,2,34.67,0.18181818181818182
25,724,251,473,0,1,32.08,0.2589641434262948
26,692,222,470,0,1,34.18,0.2072072072072072
27,705,241,464,0,1,8.76,0.23651452282157676
28,137,12,125,0,5,34.23,0.16666666666666666
29,672,230,442,0,1,31.7,0.24782608695652175
30,694,220,474,0,1,33.09,0.2818181818181818
31,674,223,451,0,1,9.03,0.2600896860986547
32,144,13,131,0,4,34.63,0.3076923076923077
33,670,232,438,0,1,7.09,0.24568965517241378
34,141,10,131,0,4,32.78,0.3
35,659,216,443,0,1,32.27,0.2638888888888889
36,691,223,468,0,1,36.91,0.29596412556053814
37,737,272,465,0,1,14.16,0.22058823529411764
38,219,31,188,0,3,5.0,0.3870967741935484
39,100,5,95,0,8,32.77,0.2
40,714,234,480,0,1,12.5,0.27350427350427353
41,184,23,161,0,4,7.45,0.30434782608695654
42,161,12,149,0,4,21.55,0.25
43,362,78,284,0,2,32.61,0.32051282051282054
44,696,227,469,0,1,29.98,0.24669603524229075
45,627,188,439,0,1,32.56,0.3404255319148936
46,648,211,437,0,1,1.89,0.27014218009478674
47,53,1,52,0,10,31.51,0.0
48,676,213,463,0,1,31.35,0.23943661971830985
49,638,200,438,0,1,32.69,0.27
50,673,220,453,0,1,12.5,0.22727272727272727
51,128,16,112,0,5,3.53,0.25
52,85,3,82,0,9,33.33,0.3333333333333333
53,747,249,498,0,1,33.0,0.26506024096385544
54,700,231,469,0,1,35.08,0.24675324675324675
55,687,241,446,0,1,37.5,0.24481327800829875
56,720,270,450,0,1,31.3,0.25925925925925924
57,690,216,474,0,1,0.0,0.2638888888888889
58,40,0,40,0,17,19.18,0.0
59,318,61,257,0,2,31.31,0.14754098360655737
60,674,211,463,0,1,13.04,0.1990521327014218
61,23,3,20,0,26,35.22,0.0
62,724,255,469,0,1,32.32,0.2549019607843137
63,628,203,425,0,1,24.93,0.2315270935960591
64,345,86,259,0,2,35.1,0.3372093023255814
65,681,239,442,0,1,4.11,0.2803347280334728
66,73,3,70,0,10,33.79,0.3333333333333333
67,651,220,431,0,1,0.0,0.20909090909090908
68,10,0,10,0,69,33.02,0.0
69,636,210,426,0,1,32.77,0.32857142857142857
70,656,215,441,0,1,22.58,0.26046511627906976
71,372,84,288,0,2,33.48,0.2261904761904762
72,678,227,451,0,1,33.7,0.2422907488986784
73,638,215,423,0,1,33.28,0.2930232558139535
74,685,228,457,0,1,10.45,0.19736842105263158
75,201,21,180,0,3,20.35,0.2857142857142857
76,344,70,274,0,2,21.16,0.3
77,345,73,272,0,2,17.24,0.2054794520547945
78,261,45,216,0,3,4.26,0.2
79,47,2,45,0,15,33.79,0.0
80,660,223,437,0,1,30.28,0.27802690582959644
81,634,192,442,0,1,5.84,0.2604166666666667
82,137,8,129,0,5,18.45,0.125
83,309,57,252,0,2,34.11,0.24561403508771928
84,686,234,452,0,1,32.99,0.2905982905982906
85,682,225,457,0,1,19.25,0.26222222222222225
86,322,62,260,0,2,32.99,0.3064516129032258
87,676,223,453,0,1,20.92,0.20179372197309417
88,325,68,257,0,2,35.27,0.25
89,689,243,446,0,1,32.95,0.22633744855967078
90,695,229,466,0,1,21.91,0.2794759825327511
91,324,71,253,0,2,20.47,0.30985915492957744
92,337,69,268,0,2,13.96,0.21739130434782608
93,222,31,191,0,3,31.78,0.25806451612903225
94,686,218,468,0,1,19.94,0.2889908256880734
95,351,70,281,0,2,33.89,0.3142857142857143
96,717,243,474,0,1,32.53,0.2139917695473251
97,664,216,448,0,1,0.0,0.26851851851851855
98,23,0,23,0,37,11.6,0.0
99,181,21,160,0,4,22.85,0.3333333333333333
obj_id,access_count,hits,misses,mu,lambda,hit_rate,avg_age
1,122,41,81,0,1,61.52,0.07317073170731707
2,382,235,147,0,3,29.92,0.2553191489361702
3,127,38,89,0,1,29.2,0.34210526315789475
4,113,33,80,0,1,49.59,0.30303030303030304
5,244,121,123,0,2,34.48,0.2231404958677686
6,116,40,76,0,1,72.26,0.275
7,656,474,182,0,5,30.47,0.22573839662447256
8,128,39,89,0,1,32.46,0.15384615384615385
9,114,37,77,0,1,28.7,0.2702702702702703
10,115,33,82,0,1,52.44,0.24242424242424243
11,246,129,117,0,2,37.88,0.17829457364341086
12,132,50,82,0,1,35.97,0.22
13,139,50,89,0,1,29.17,0.24
14,120,35,85,0,1,51.34,0.2
15,261,134,127,0,2,48.44,0.26865671641791045
16,225,109,116,0,2,32.5,0.22018348623853212
17,120,39,81,0,1,33.33,0.20512820512820512
18,117,39,78,0,1,59.17,0.23076923076923078
19,360,213,147,0,3,34.19,0.17370892018779344
20,117,40,77,0,1,35.82,0.275
21,134,48,86,0,1,37.41,0.20833333333333334
22,147,55,92,0,1,35.21,0.32727272727272727
23,142,50,92,0,1,53.03,0.22
24,264,140,124,0,2,34.15,0.20714285714285716
25,123,42,81,0,1,35.46,0.3333333333333333
26,141,50,91,0,1,35.16,0.24
27,128,45,83,0,1,69.15,0.2
28,564,390,174,0,5,35.34,0.24102564102564103
29,133,47,86,0,1,36.0,0.1702127659574468
30,125,45,80,0,1,26.96,0.26666666666666666
31,115,31,84,0,1,65.81,0.25806451612903225
32,468,308,160,0,4,31.9,0.2597402597402597
33,116,37,79,0,1,67.27,0.10810810810810811
34,498,335,163,0,4,29.55,0.26865671641791045
35,132,39,93,0,1,29.0,0.3333333333333333
36,100,29,71,0,1,34.9,0.2413793103448276
37,149,52,97,0,1,58.59,0.28846153846153844
38,355,208,147,0,3,79.63,0.27884615384615385
39,962,766,196,0,8,36.72,0.25718015665796345
40,128,47,81,0,1,64.56,0.2978723404255319
41,474,306,168,0,4,66.26,0.2581699346405229
42,495,328,167,0,4,46.48,0.2682926829268293
43,213,99,114,0,2,28.57,0.18181818181818182
44,112,32,80,0,1,31.78,0.25
45,129,41,88,0,1,33.83,0.17073170731707318
46,133,45,88,0,1,83.6,0.2222222222222222
47,1262,1055,207,0,10,38.24,0.1924170616113744
48,136,52,84,0,1,41.84,0.2692307692307692
49,141,59,82,0,1,34.45,0.2542372881355932
50,119,41,78,0,1,70.12,0.21951219512195122
51,599,420,179,0,5,81.56,0.2523809523809524
52,1106,902,204,0,9,28.93,0.24833702882483372
53,121,35,86,0,1,29.77,0.2
54,131,39,92,0,1,33.87,0.20512820512820512
55,124,42,82,0,1,36.92,0.38095238095238093
56,130,48,82,0,1,32.26,0.1875
57,124,40,84,0,1,89.57,0.275
58,2118,1897,221,0,17,46.34,0.2672641012124407
59,205,95,110,0,2,34.31,0.22105263157894736
60,137,47,90,0,1,92.85,0.2127659574468085
61,3216,2986,230,0,26,34.78,0.25016744809109176
62,138,48,90,0,1,30.77,0.22916666666666666
63,117,36,81,0,1,50.76,0.3888888888888889
64,264,134,130,0,2,37.41,0.20149253731343283
65,139,52,87,0,1,83.73,0.21153846153846154
66,1248,1045,203,0,10,35.62,0.2507177033492823
67,146,52,94,0,1,97.14,0.4423076923076923
68,8414,8173,241,0,69,31.03,0.24715526734369264
69,116,36,80,0,1,31.67,0.3611111111111111
70,120,38,82,0,1,52.05,0.2631578947368421
71,244,127,117,0,2,29.91,0.18110236220472442
72,117,35,82,0,1,33.59,0.2857142857142857
73,131,44,87,0,1,33.8,0.29545454545454547
74,142,48,94,0,1,57.43,0.16666666666666666
75,343,197,146,0,3,49.6,0.3197969543147208
76,250,124,126,0,2,50.59,0.25
77,253,128,125,0,2,60.15,0.2265625
78,394,237,157,0,3,88.48,0.25316455696202533
79,1910,1690,220,0,15,28.33,0.25443786982248523
80,120,34,86,0,1,34.71,0.11764705882352941
81,121,42,79,0,1,71.87,0.2619047619047619
82,647,465,182,0,5,50.81,0.23655913978494625
83,248,126,122,0,2,35.42,0.2698412698412698
84,144,51,93,0,1,29.63,0.35294117647058826
85,108,32,76,0,1,44.55,0.125
86,211,94,117,0,2,36.57,0.19148936170212766
87,134,49,85,0,1,47.77,0.22448979591836735
88,224,107,117,0,2,36.3,0.2897196261682243
89,135,49,86,0,1,28.23,0.2857142857142857
90,124,35,89,0,1,48.33,0.2571428571428571
91,240,116,124,0,2,47.16,0.23275862068965517
92,229,108,121,0,2,61.32,0.2037037037037037
93,393,241,152,0,3,29.6,0.22821576763485477
94,125,37,88,0,1,54.47,0.10810810810810811
95,257,140,117,0,2,33.81,0.16428571428571428
96,139,47,92,0,1,35.43,0.2553191489361702
97,127,45,82,0,1,94.87,0.1111111111111111
98,4578,4343,235,0,37,67.01,0.24038682938061248
99,482,323,159,0,4,52.21,0.28173374613003094
1 obj_id access_count hits misses mu lambda hit_rate avg_age
2 1 664 122 224 41 440 81 0 1 10.38 61.52 0.25892857142857145 0.07317073170731707
3 2 212 382 22 235 190 147 0 3 32.39 29.92 0.36363636363636365 0.2553191489361702
4 3 673 127 218 38 455 89 0 1 34.6 29.2 0.24311926605504589 0.34210526315789475
5 4 711 113 246 33 465 80 0 1 19.13 49.59 0.25609756097560976 0.30303030303030304
6 5 345 244 66 121 279 123 0 2 31.74 34.48 0.24242424242424243 0.2231404958677686
7 6 649 116 206 40 443 76 0 1 10.22 72.26 0.24757281553398058 0.275
8 7 137 656 14 474 123 182 0 5 32.45 30.47 0.21428571428571427 0.22573839662447256
9 8 681 128 221 39 460 89 0 1 34.4 32.46 0.2579185520361991 0.15384615384615385
10 9 689 114 237 37 452 77 0 1 34.18 28.7 0.23628691983122363 0.2702702702702703
11 10 667 115 228 33 439 82 0 1 21.95 52.44 0.2236842105263158 0.24242424242424243
12 11 328 246 72 129 256 117 0 2 34.97 37.88 0.2361111111111111 0.17829457364341086
13 12 692 132 242 50 450 82 0 1 32.21 35.97 0.30578512396694213 0.22
14 13 683 139 220 50 463 89 0 1 33.62 29.17 0.22727272727272727 0.24
15 14 696 120 234 35 462 85 0 1 20.35 51.34 0.2692307692307692 0.2
16 15 344 261 70 134 274 127 0 2 18.4 48.44 0.2 0.26865671641791045
17 16 326 225 60 109 266 116 0 2 29.9 32.5 0.2 0.22018348623853212
18 17 689 120 206 39 483 81 0 1 32.85 33.33 0.2524271844660194 0.20512820512820512
19 18 691 117 227 39 464 78 0 1 11.87 59.17 0.24669603524229075 0.23076923076923078
20 19 219 360 26 213 193 147 0 3 34.84 34.19 0.2692307692307692 0.17370892018779344
21 20 732 117 255 40 477 77 0 1 35.05 35.82 0.25882352941176473 0.275
22 21 739 134 259 48 480 86 0 1 34.55 37.41 0.21235521235521235 0.20833333333333334
23 22 683 147 236 55 447 92 0 1 35.22 35.21 0.288135593220339 0.32727272727272727
24 23 670 142 236 50 434 92 0 1 19.94 53.03 0.19915254237288135 0.22
25 24 331 264 66 140 265 124 0 2 34.67 34.15 0.18181818181818182 0.20714285714285716
26 25 724 123 251 42 473 81 0 1 32.08 35.46 0.2589641434262948 0.3333333333333333
27 26 692 141 222 50 470 91 0 1 34.18 35.16 0.2072072072072072 0.24
28 27 705 128 241 45 464 83 0 1 8.76 69.15 0.23651452282157676 0.2
29 28 137 564 12 390 125 174 0 5 34.23 35.34 0.16666666666666666 0.24102564102564103
30 29 672 133 230 47 442 86 0 1 31.7 36.0 0.24782608695652175 0.1702127659574468
31 30 694 125 220 45 474 80 0 1 33.09 26.96 0.2818181818181818 0.26666666666666666
32 31 674 115 223 31 451 84 0 1 9.03 65.81 0.2600896860986547 0.25806451612903225
33 32 144 468 13 308 131 160 0 4 34.63 31.9 0.3076923076923077 0.2597402597402597
34 33 670 116 232 37 438 79 0 1 7.09 67.27 0.24568965517241378 0.10810810810810811
35 34 141 498 10 335 131 163 0 4 32.78 29.55 0.3 0.26865671641791045
36 35 659 132 216 39 443 93 0 1 32.27 29.0 0.2638888888888889 0.3333333333333333
37 36 691 100 223 29 468 71 0 1 36.91 34.9 0.29596412556053814 0.2413793103448276
38 37 737 149 272 52 465 97 0 1 14.16 58.59 0.22058823529411764 0.28846153846153844
39 38 219 355 31 208 188 147 0 3 5.0 79.63 0.3870967741935484 0.27884615384615385
40 39 100 962 5 766 95 196 0 8 32.77 36.72 0.2 0.25718015665796345
41 40 714 128 234 47 480 81 0 1 12.5 64.56 0.27350427350427353 0.2978723404255319
42 41 184 474 23 306 161 168 0 4 7.45 66.26 0.30434782608695654 0.2581699346405229
43 42 161 495 12 328 149 167 0 4 21.55 46.48 0.25 0.2682926829268293
44 43 362 213 78 99 284 114 0 2 32.61 28.57 0.32051282051282054 0.18181818181818182
45 44 696 112 227 32 469 80 0 1 29.98 31.78 0.24669603524229075 0.25
46 45 627 129 188 41 439 88 0 1 32.56 33.83 0.3404255319148936 0.17073170731707318
47 46 648 133 211 45 437 88 0 1 1.89 83.6 0.27014218009478674 0.2222222222222222
48 47 53 1262 1 1055 52 207 0 10 31.51 38.24 0.0 0.1924170616113744
49 48 676 136 213 52 463 84 0 1 31.35 41.84 0.23943661971830985 0.2692307692307692
50 49 638 141 200 59 438 82 0 1 32.69 34.45 0.27 0.2542372881355932
51 50 673 119 220 41 453 78 0 1 12.5 70.12 0.22727272727272727 0.21951219512195122
52 51 128 599 16 420 112 179 0 5 3.53 81.56 0.25 0.2523809523809524
53 52 85 1106 3 902 82 204 0 9 33.33 28.93 0.3333333333333333 0.24833702882483372
54 53 747 121 249 35 498 86 0 1 33.0 29.77 0.26506024096385544 0.2
55 54 700 131 231 39 469 92 0 1 35.08 33.87 0.24675324675324675 0.20512820512820512
56 55 687 124 241 42 446 82 0 1 37.5 36.92 0.24481327800829875 0.38095238095238093
57 56 720 130 270 48 450 82 0 1 31.3 32.26 0.25925925925925924 0.1875
58 57 690 124 216 40 474 84 0 1 0.0 89.57 0.2638888888888889 0.275
59 58 40 2118 0 1897 40 221 0 17 19.18 46.34 0.0 0.2672641012124407
60 59 318 205 61 95 257 110 0 2 31.31 34.31 0.14754098360655737 0.22105263157894736
61 60 674 137 211 47 463 90 0 1 13.04 92.85 0.1990521327014218 0.2127659574468085
62 61 23 3216 3 2986 20 230 0 26 35.22 34.78 0.0 0.25016744809109176
63 62 724 138 255 48 469 90 0 1 32.32 30.77 0.2549019607843137 0.22916666666666666
64 63 628 117 203 36 425 81 0 1 24.93 50.76 0.2315270935960591 0.3888888888888889
65 64 345 264 86 134 259 130 0 2 35.1 37.41 0.3372093023255814 0.20149253731343283
66 65 681 139 239 52 442 87 0 1 4.11 83.73 0.2803347280334728 0.21153846153846154
67 66 73 1248 3 1045 70 203 0 10 33.79 35.62 0.3333333333333333 0.2507177033492823
68 67 651 146 220 52 431 94 0 1 0.0 97.14 0.20909090909090908 0.4423076923076923
69 68 10 8414 0 8173 10 241 0 69 33.02 31.03 0.0 0.24715526734369264
70 69 636 116 210 36 426 80 0 1 32.77 31.67 0.32857142857142857 0.3611111111111111
71 70 656 120 215 38 441 82 0 1 22.58 52.05 0.26046511627906976 0.2631578947368421
72 71 372 244 84 127 288 117 0 2 33.48 29.91 0.2261904761904762 0.18110236220472442
73 72 678 117 227 35 451 82 0 1 33.7 33.59 0.2422907488986784 0.2857142857142857
74 73 638 131 215 44 423 87 0 1 33.28 33.8 0.2930232558139535 0.29545454545454547
75 74 685 142 228 48 457 94 0 1 10.45 57.43 0.19736842105263158 0.16666666666666666
76 75 201 343 21 197 180 146 0 3 20.35 49.6 0.2857142857142857 0.3197969543147208
77 76 344 250 70 124 274 126 0 2 21.16 50.59 0.3 0.25
78 77 345 253 73 128 272 125 0 2 17.24 60.15 0.2054794520547945 0.2265625
79 78 261 394 45 237 216 157 0 3 4.26 88.48 0.2 0.25316455696202533
80 79 47 1910 2 1690 45 220 0 15 33.79 28.33 0.0 0.25443786982248523
81 80 660 120 223 34 437 86 0 1 30.28 34.71 0.27802690582959644 0.11764705882352941
82 81 634 121 192 42 442 79 0 1 5.84 71.87 0.2604166666666667 0.2619047619047619
83 82 137 647 8 465 129 182 0 5 18.45 50.81 0.125 0.23655913978494625
84 83 309 248 57 126 252 122 0 2 34.11 35.42 0.24561403508771928 0.2698412698412698
85 84 686 144 234 51 452 93 0 1 32.99 29.63 0.2905982905982906 0.35294117647058826
86 85 682 108 225 32 457 76 0 1 19.25 44.55 0.26222222222222225 0.125
87 86 322 211 62 94 260 117 0 2 32.99 36.57 0.3064516129032258 0.19148936170212766
88 87 676 134 223 49 453 85 0 1 20.92 47.77 0.20179372197309417 0.22448979591836735
89 88 325 224 68 107 257 117 0 2 35.27 36.3 0.25 0.2897196261682243
90 89 689 135 243 49 446 86 0 1 32.95 28.23 0.22633744855967078 0.2857142857142857
91 90 695 124 229 35 466 89 0 1 21.91 48.33 0.2794759825327511 0.2571428571428571
92 91 324 240 71 116 253 124 0 2 20.47 47.16 0.30985915492957744 0.23275862068965517
93 92 337 229 69 108 268 121 0 2 13.96 61.32 0.21739130434782608 0.2037037037037037
94 93 222 393 31 241 191 152 0 3 31.78 29.6 0.25806451612903225 0.22821576763485477
95 94 686 125 218 37 468 88 0 1 19.94 54.47 0.2889908256880734 0.10810810810810811
96 95 351 257 70 140 281 117 0 2 33.89 33.81 0.3142857142857143 0.16428571428571428
97 96 717 139 243 47 474 92 0 1 32.53 35.43 0.2139917695473251 0.2553191489361702
98 97 664 127 216 45 448 82 0 1 0.0 94.87 0.26851851851851855 0.1111111111111111
99 98 23 4578 0 4343 23 235 0 37 11.6 67.01 0.0 0.24038682938061248
100 99 181 482 21 323 160 159 0 4 22.85 52.21 0.3333333333333333 0.28173374613003094