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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_1_0s_ttl/details.csv
View File

@@ -1,100 +1,100 @@
,access_count,hits,misses,mu,lambda,hit_rate,avg_age
1,664,328,336,0,1,22.17,0.45426829268292684
2,212,47,165,0,3,50.07,0.5106382978723404
3,673,337,336,0,1,50.63,0.5133531157270029
4,711,360,351,0,1,32.75,0.5166666666666667
5,345,113,232,0,2,49.46,0.4247787610619469
6,649,321,328,0,1,18.98,0.5171339563862928
7,137,26,111,0,5,49.63,0.46153846153846156
8,681,338,343,0,1,50.22,0.4556213017751479
9,689,346,343,0,1,49.33,0.476878612716763
10,667,329,338,0,1,37.8,0.44376899696048633
11,328,124,204,0,2,52.31,0.5483870967741935
12,692,362,330,0,1,48.46,0.5
13,683,331,352,0,1,49.86,0.4743202416918429
14,696,347,349,0,1,31.98,0.49279538904899134
15,344,110,234,0,2,29.14,0.4727272727272727
16,326,95,231,0,2,48.48,0.4421052631578947
17,689,334,355,0,1,49.93,0.5988023952095808
18,691,345,346,0,1,22.83,0.4927536231884058
19,219,50,169,0,3,51.09,0.52
20,732,374,358,0,1,52.77,0.5053475935828877
21,739,390,349,0,1,51.1,0.4897435897435897
22,683,349,334,0,1,49.55,0.49283667621776506
23,670,332,338,0,1,32.02,0.43373493975903615
24,331,106,225,0,2,50.97,0.3867924528301887
25,724,369,355,0,1,50.58,0.5013550135501355
26,692,350,342,0,1,51.49,0.5057142857142857
27,705,363,342,0,1,15.33,0.49586776859504134
28,137,21,116,0,5,49.55,0.42857142857142855
29,672,333,339,0,1,48.56,0.45645645645645644
30,694,337,357,0,1,50.3,0.5608308605341247
31,674,339,335,0,1,17.36,0.49557522123893805
32,144,25,119,0,4,51.19,0.6
33,670,343,327,0,1,12.77,0.44314868804664725
34,141,18,123,0,4,50.99,0.5
35,659,336,323,0,1,50.36,0.5297619047619048
36,691,348,343,0,1,53.05,0.5
37,737,391,346,0,1,24.66,0.4961636828644501
38,219,54,165,0,3,9.0,0.6296296296296297
39,100,9,91,0,8,49.72,0.4444444444444444
40,714,355,359,0,1,22.28,0.5014084507042254
41,184,41,143,0,4,18.63,0.5853658536585366
42,161,30,131,0,4,37.57,0.6666666666666666
43,362,136,226,0,2,49.57,0.47794117647058826
44,696,345,351,0,1,47.05,0.4956521739130435
45,627,295,332,0,1,48.77,0.535593220338983
46,648,316,332,0,1,5.66,0.4810126582278481
47,53,3,50,0,10,48.22,0.3333333333333333
48,676,326,350,0,1,48.12,0.4263803680981595
49,638,307,331,0,1,49.93,0.50814332247557
50,673,336,337,0,1,18.75,0.4523809523809524
51,128,24,104,0,5,9.41,0.5
52,85,8,77,0,9,51.54,0.5
53,747,385,362,0,1,49.86,0.535064935064935
54,700,349,351,0,1,51.24,0.5358166189111748
55,687,352,335,0,1,53.75,0.4943181818181818
56,720,387,333,0,1,50.43,0.4728682170542636
57,690,348,342,0,1,2.5,0.5431034482758621
58,40,1,39,0,17,32.08,1.0
59,318,102,216,0,2,47.92,0.5196078431372549
60,674,323,351,0,1,17.39,0.47678018575851394
61,23,4,19,0,26,50.97,0.25
62,724,369,355,0,1,49.2,0.46883468834688347
63,628,309,319,0,1,36.52,0.47896440129449835
64,345,126,219,0,2,50.66,0.5476190476190477
65,681,345,336,0,1,6.85,0.5594202898550724
66,73,5,68,0,10,50.23,0.6
67,651,327,324,0,1,0.0,0.40978593272171254
68,10,0,10,0,69,49.06,0.0
69,636,312,324,0,1,48.17,0.5416666666666666
70,656,316,340,0,1,34.95,0.5
71,372,130,242,0,2,51.33,0.5615384615384615
72,678,348,330,0,1,49.69,0.49137931034482757
73,638,317,321,0,1,50.95,0.5362776025236593
74,685,349,336,0,1,20.9,0.4813753581661891
75,201,42,159,0,3,35.76,0.5238095238095238
76,344,123,221,0,2,36.23,0.5853658536585366
77,345,125,220,0,2,27.2,0.488
78,261,71,190,0,3,8.51,0.4647887323943662
79,47,4,43,0,15,50.3,0.5
80,660,332,328,0,1,49.53,0.5180722891566265
81,634,314,320,0,1,13.87,0.49044585987261147
82,137,19,118,0,5,30.74,0.47368421052631576
83,309,95,214,0,2,50.44,0.5368421052631579
84,686,346,340,0,1,49.41,0.5028901734104047
85,682,337,345,0,1,32.61,0.5014836795252225
86,322,105,217,0,2,50.0,0.5428571428571428
87,676,338,338,0,1,31.69,0.5029585798816568
88,325,103,222,0,2,49.93,0.4368932038834951
89,689,344,345,0,1,49.06,0.45058139534883723
90,695,341,354,0,1,36.73,0.49266862170087977
91,324,119,205,0,2,33.53,0.5630252100840336
92,337,113,224,0,2,26.13,0.415929203539823
93,222,58,164,0,3,49.85,0.4827586206896552
94,686,342,344,0,1,35.61,0.52046783625731
95,351,125,226,0,2,52.44,0.536
96,717,376,341,0,1,49.25,0.4627659574468085
97,664,327,337,0,1,0.0,0.5015290519877675
98,23,0,23,0,37,21.55,0.0
99,181,39,142,0,4,35.31,0.5384615384615384
obj_id,access_count,hits,misses,mu,lambda,hit_rate,avg_age
1,122,60,62,0,1,75.39,0.5
2,382,288,94,0,3,48.03,0.5277777777777778
3,127,61,66,0,1,47.79,0.5573770491803278
4,113,54,59,0,1,66.8,0.5
5,244,163,81,0,2,49.14,0.4233128834355828
6,116,57,59,0,1,84.15,0.38596491228070173
7,656,552,104,0,5,49.22,0.5344202898550725
8,128,63,65,0,1,48.25,0.36507936507936506
9,114,55,59,0,1,49.57,0.45454545454545453
10,115,57,58,0,1,67.07,0.45614035087719296
11,246,165,81,0,2,53.03,0.48484848484848486
12,132,70,62,0,1,53.24,0.5571428571428572
13,139,74,65,0,1,48.33,0.47297297297297297
14,120,58,62,0,1,68.2,0.46551724137931033
15,261,178,83,0,2,65.33,0.4606741573033708
16,225,147,78,0,2,50.0,0.5238095238095238
17,120,60,60,0,1,49.57,0.5
18,117,58,59,0,1,75.28,0.5517241379310345
19,360,271,89,0,3,49.57,0.5092250922509225
20,117,58,59,0,1,53.73,0.46551724137931033
21,134,72,62,0,1,55.1,0.4861111111111111
22,147,81,66,0,1,48.59,0.5061728395061729
23,142,69,73,0,1,69.7,0.5362318840579711
24,264,184,80,0,2,47.97,0.44565217391304346
25,123,59,64,0,1,53.9,0.559322033898305
26,141,76,65,0,1,48.44,0.4868421052631579
27,128,62,66,0,1,82.27,0.4032258064516129
28,564,464,100,0,5,49.62,0.5387931034482759
29,133,66,67,0,1,51.2,0.4090909090909091
30,125,64,61,0,1,43.48,0.546875
31,115,50,65,0,1,79.27,0.58
32,468,371,97,0,4,50.0,0.49595687331536387
33,116,58,58,0,1,80.12,0.43103448275862066
34,498,399,99,0,4,50.0,0.5338345864661654
35,132,66,66,0,1,46.0,0.6515151515151515
36,100,46,54,0,1,54.36,0.45652173913043476
37,149,81,68,0,1,72.96,0.5432098765432098
38,355,259,96,0,3,88.77,0.5096525096525096
39,962,854,108,0,8,53.91,0.5210772833723654
40,128,69,59,0,1,79.11,0.463768115942029
41,474,375,99,0,4,79.6,0.45066666666666666
42,495,394,101,0,4,64.32,0.48223350253807107
43,213,137,76,0,2,44.64,0.3795620437956204
44,112,50,62,0,1,48.84,0.48
45,129,63,66,0,1,51.88,0.4603174603174603
46,133,69,64,0,1,90.97,0.4057971014492754
47,1262,1148,114,0,10,54.41,0.5261324041811847
48,136,74,62,0,1,56.03,0.43243243243243246
49,141,79,62,0,1,47.06,0.5189873417721519
50,119,56,63,0,1,83.14,0.39285714285714285
51,599,498,101,0,5,89.96,0.43775100401606426
52,1106,995,111,0,9,47.11,0.4884422110552764
53,121,57,64,0,1,48.85,0.49122807017543857
54,131,64,67,0,1,50.0,0.484375
55,124,62,62,0,1,51.54,0.5
56,130,67,63,0,1,51.61,0.4925373134328358
57,124,64,60,0,1,94.52,0.546875
58,2118,2002,116,0,17,62.44,0.47302697302697305
59,205,128,77,0,2,52.55,0.5
60,137,72,65,0,1,96.3,0.5277777777777778
61,3216,3097,119,0,26,52.9,0.4914433322570229
62,138,73,65,0,1,45.3,0.5205479452054794
63,117,53,64,0,1,68.56,0.5094339622641509
64,264,181,83,0,2,52.52,0.4198895027624309
65,139,73,66,0,1,90.95,0.5068493150684932
66,1248,1135,113,0,10,56.16,0.4819383259911894
67,146,82,64,0,1,98.55,0.5121951219512195
68,8414,8292,122,0,69,51.72,0.46599131693198265
69,116,60,56,0,1,52.5,0.6166666666666667
70,120,63,57,0,1,67.62,0.5714285714285714
71,244,165,79,0,2,45.3,0.4909090909090909
72,117,53,64,0,1,48.85,0.49056603773584906
73,131,64,67,0,1,52.82,0.453125
74,142,75,67,0,1,73.47,0.5866666666666667
75,343,252,91,0,3,66.4,0.5317460317460317
76,250,166,84,0,2,67.98,0.4879518072289157
77,253,172,81,0,2,76.14,0.45348837209302323
78,394,300,94,0,3,93.87,0.5
79,1910,1793,117,0,15,49.17,0.4617958728388176
80,120,59,61,0,1,50.41,0.5254237288135594
81,121,61,60,0,1,83.93,0.47540983606557374
82,647,543,104,0,5,65.73,0.47513812154696133
83,248,163,85,0,2,54.17,0.48466257668711654
84,144,78,66,0,1,41.67,0.5512820512820513
85,108,45,63,0,1,61.61,0.35555555555555557
86,211,130,81,0,2,53.73,0.4461538461538462
87,134,72,62,0,1,63.84,0.5972222222222222
88,224,143,81,0,2,56.3,0.5174825174825175
89,135,76,59,0,1,50.0,0.5131578947368421
90,124,62,62,0,1,66.25,0.4838709677419355
91,240,159,81,0,2,64.19,0.5031446540880503
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95,257,176,81,0,2,52.52,0.4375
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1 obj_id access_count hits misses mu lambda hit_rate avg_age
2 1 664 122 328 60 336 62 0 1 22.17 75.39 0.45426829268292684 0.5
3 2 212 382 47 288 165 94 0 3 50.07 48.03 0.5106382978723404 0.5277777777777778
4 3 673 127 337 61 336 66 0 1 50.63 47.79 0.5133531157270029 0.5573770491803278
5 4 711 113 360 54 351 59 0 1 32.75 66.8 0.5166666666666667 0.5
6 5 345 244 113 163 232 81 0 2 49.46 49.14 0.4247787610619469 0.4233128834355828
7 6 649 116 321 57 328 59 0 1 18.98 84.15 0.5171339563862928 0.38596491228070173
8 7 137 656 26 552 111 104 0 5 49.63 49.22 0.46153846153846156 0.5344202898550725
9 8 681 128 338 63 343 65 0 1 50.22 48.25 0.4556213017751479 0.36507936507936506
10 9 689 114 346 55 343 59 0 1 49.33 49.57 0.476878612716763 0.45454545454545453
11 10 667 115 329 57 338 58 0 1 37.8 67.07 0.44376899696048633 0.45614035087719296
12 11 328 246 124 165 204 81 0 2 52.31 53.03 0.5483870967741935 0.48484848484848486
13 12 692 132 362 70 330 62 0 1 48.46 53.24 0.5 0.5571428571428572
14 13 683 139 331 74 352 65 0 1 49.86 48.33 0.4743202416918429 0.47297297297297297
15 14 696 120 347 58 349 62 0 1 31.98 68.2 0.49279538904899134 0.46551724137931033
16 15 344 261 110 178 234 83 0 2 29.14 65.33 0.4727272727272727 0.4606741573033708
17 16 326 225 95 147 231 78 0 2 48.48 50.0 0.4421052631578947 0.5238095238095238
18 17 689 120 334 60 355 60 0 1 49.93 49.57 0.5988023952095808 0.5
19 18 691 117 345 58 346 59 0 1 22.83 75.28 0.4927536231884058 0.5517241379310345
20 19 219 360 50 271 169 89 0 3 51.09 49.57 0.52 0.5092250922509225
21 20 732 117 374 58 358 59 0 1 52.77 53.73 0.5053475935828877 0.46551724137931033
22 21 739 134 390 72 349 62 0 1 51.1 55.1 0.4897435897435897 0.4861111111111111
23 22 683 147 349 81 334 66 0 1 49.55 48.59 0.49283667621776506 0.5061728395061729
24 23 670 142 332 69 338 73 0 1 32.02 69.7 0.43373493975903615 0.5362318840579711
25 24 331 264 106 184 225 80 0 2 50.97 47.97 0.3867924528301887 0.44565217391304346
26 25 724 123 369 59 355 64 0 1 50.58 53.9 0.5013550135501355 0.559322033898305
27 26 692 141 350 76 342 65 0 1 51.49 48.44 0.5057142857142857 0.4868421052631579
28 27 705 128 363 62 342 66 0 1 15.33 82.27 0.49586776859504134 0.4032258064516129
29 28 137 564 21 464 116 100 0 5 49.55 49.62 0.42857142857142855 0.5387931034482759
30 29 672 133 333 66 339 67 0 1 48.56 51.2 0.45645645645645644 0.4090909090909091
31 30 694 125 337 64 357 61 0 1 50.3 43.48 0.5608308605341247 0.546875
32 31 674 115 339 50 335 65 0 1 17.36 79.27 0.49557522123893805 0.58
33 32 144 468 25 371 119 97 0 4 51.19 50.0 0.6 0.49595687331536387
34 33 670 116 343 58 327 58 0 1 12.77 80.12 0.44314868804664725 0.43103448275862066
35 34 141 498 18 399 123 99 0 4 50.99 50.0 0.5 0.5338345864661654
36 35 659 132 336 66 323 66 0 1 50.36 46.0 0.5297619047619048 0.6515151515151515
37 36 691 100 348 46 343 54 0 1 53.05 54.36 0.5 0.45652173913043476
38 37 737 149 391 81 346 68 0 1 24.66 72.96 0.4961636828644501 0.5432098765432098
39 38 219 355 54 259 165 96 0 3 9.0 88.77 0.6296296296296297 0.5096525096525096
40 39 100 962 9 854 91 108 0 8 49.72 53.91 0.4444444444444444 0.5210772833723654
41 40 714 128 355 69 359 59 0 1 22.28 79.11 0.5014084507042254 0.463768115942029
42 41 184 474 41 375 143 99 0 4 18.63 79.6 0.5853658536585366 0.45066666666666666
43 42 161 495 30 394 131 101 0 4 37.57 64.32 0.6666666666666666 0.48223350253807107
44 43 362 213 136 137 226 76 0 2 49.57 44.64 0.47794117647058826 0.3795620437956204
45 44 696 112 345 50 351 62 0 1 47.05 48.84 0.4956521739130435 0.48
46 45 627 129 295 63 332 66 0 1 48.77 51.88 0.535593220338983 0.4603174603174603
47 46 648 133 316 69 332 64 0 1 5.66 90.97 0.4810126582278481 0.4057971014492754
48 47 53 1262 3 1148 50 114 0 10 48.22 54.41 0.3333333333333333 0.5261324041811847
49 48 676 136 326 74 350 62 0 1 48.12 56.03 0.4263803680981595 0.43243243243243246
50 49 638 141 307 79 331 62 0 1 49.93 47.06 0.50814332247557 0.5189873417721519
51 50 673 119 336 56 337 63 0 1 18.75 83.14 0.4523809523809524 0.39285714285714285
52 51 128 599 24 498 104 101 0 5 9.41 89.96 0.5 0.43775100401606426
53 52 85 1106 8 995 77 111 0 9 51.54 47.11 0.5 0.4884422110552764
54 53 747 121 385 57 362 64 0 1 49.86 48.85 0.535064935064935 0.49122807017543857
55 54 700 131 349 64 351 67 0 1 51.24 50.0 0.5358166189111748 0.484375
56 55 687 124 352 62 335 62 0 1 53.75 51.54 0.4943181818181818 0.5
57 56 720 130 387 67 333 63 0 1 50.43 51.61 0.4728682170542636 0.4925373134328358
58 57 690 124 348 64 342 60 0 1 2.5 94.52 0.5431034482758621 0.546875
59 58 40 2118 1 2002 39 116 0 17 32.08 62.44 1.0 0.47302697302697305
60 59 318 205 102 128 216 77 0 2 47.92 52.55 0.5196078431372549 0.5
61 60 674 137 323 72 351 65 0 1 17.39 96.3 0.47678018575851394 0.5277777777777778
62 61 23 3216 4 3097 19 119 0 26 50.97 52.9 0.25 0.4914433322570229
63 62 724 138 369 73 355 65 0 1 49.2 45.3 0.46883468834688347 0.5205479452054794
64 63 628 117 309 53 319 64 0 1 36.52 68.56 0.47896440129449835 0.5094339622641509
65 64 345 264 126 181 219 83 0 2 50.66 52.52 0.5476190476190477 0.4198895027624309
66 65 681 139 345 73 336 66 0 1 6.85 90.95 0.5594202898550724 0.5068493150684932
67 66 73 1248 5 1135 68 113 0 10 50.23 56.16 0.6 0.4819383259911894
68 67 651 146 327 82 324 64 0 1 0.0 98.55 0.40978593272171254 0.5121951219512195
69 68 10 8414 0 8292 10 122 0 69 49.06 51.72 0.0 0.46599131693198265
70 69 636 116 312 60 324 56 0 1 48.17 52.5 0.5416666666666666 0.6166666666666667
71 70 656 120 316 63 340 57 0 1 34.95 67.62 0.5 0.5714285714285714
72 71 372 244 130 165 242 79 0 2 51.33 45.3 0.5615384615384615 0.4909090909090909
73 72 678 117 348 53 330 64 0 1 49.69 48.85 0.49137931034482757 0.49056603773584906
74 73 638 131 317 64 321 67 0 1 50.95 52.82 0.5362776025236593 0.453125
75 74 685 142 349 75 336 67 0 1 20.9 73.47 0.4813753581661891 0.5866666666666667
76 75 201 343 42 252 159 91 0 3 35.76 66.4 0.5238095238095238 0.5317460317460317
77 76 344 250 123 166 221 84 0 2 36.23 67.98 0.5853658536585366 0.4879518072289157
78 77 345 253 125 172 220 81 0 2 27.2 76.14 0.488 0.45348837209302323
79 78 261 394 71 300 190 94 0 3 8.51 93.87 0.4647887323943662 0.5
80 79 47 1910 4 1793 43 117 0 15 50.3 49.17 0.5 0.4617958728388176
81 80 660 120 332 59 328 61 0 1 49.53 50.41 0.5180722891566265 0.5254237288135594
82 81 634 121 314 61 320 60 0 1 13.87 83.93 0.49044585987261147 0.47540983606557374
83 82 137 647 19 543 118 104 0 5 30.74 65.73 0.47368421052631576 0.47513812154696133
84 83 309 248 95 163 214 85 0 2 50.44 54.17 0.5368421052631579 0.48466257668711654
85 84 686 144 346 78 340 66 0 1 49.41 41.67 0.5028901734104047 0.5512820512820513
86 85 682 108 337 45 345 63 0 1 32.61 61.61 0.5014836795252225 0.35555555555555557
87 86 322 211 105 130 217 81 0 2 50.0 53.73 0.5428571428571428 0.4461538461538462
88 87 676 134 338 72 338 62 0 1 31.69 63.84 0.5029585798816568 0.5972222222222222
89 88 325 224 103 143 222 81 0 2 49.93 56.3 0.4368932038834951 0.5174825174825175
90 89 689 135 344 76 345 59 0 1 49.06 50.0 0.45058139534883723 0.5131578947368421
91 90 695 124 341 62 354 62 0 1 36.73 66.25 0.49266862170087977 0.4838709677419355
92 91 324 240 119 159 205 81 0 2 33.53 64.19 0.5630252100840336 0.5031446540880503
93 92 337 229 113 147 224 82 0 2 26.13 75.57 0.415929203539823 0.4489795918367347
94 93 222 393 58 297 164 96 0 3 49.85 49.6 0.4827586206896552 0.4444444444444444
95 94 686 125 342 62 344 63 0 1 35.61 68.48 0.52046783625731 0.532258064516129
96 95 351 257 125 176 226 81 0 2 52.44 52.52 0.536 0.4375
97 96 717 139 376 73 341 66 0 1 49.25 51.97 0.4627659574468085 0.547945205479452
98 97 664 127 327 66 337 61 0 1 0.0 97.38 0.5015290519877675 0.5151515151515151
99 98 23 4578 0 4458 23 120 0 37 21.55 79.25 0.0 0.46747420367877973
100 99 181 482 39 382 142 100 0 4 35.31 68.27 0.5384615384615384 0.5026178010471204