before optimization (seems not working well...)
[info] total_page=6400, duration_ms=5000, latency=1, lru_k_size=16, bpm_size=64, scan_thread_cnt=8, get_thread_cnt=8
[info] benchmark start
[ 1.00] scan 6: total_cnt=1830 throughput=1828.172 avg_throughput=1828.172
[ 1.00] scan 2: total_cnt=4 throughput=3.992 avg_throughput=3.992
[ 1.01] get 2: total_cnt=1 throughput=0.994 avg_throughput=0.994
[ 1.01] scan 7: total_cnt=1 throughput=0.988 avg_throughput=0.988
[ 1.01] get 3: total_cnt=1 throughput=0.989 avg_throughput=0.989
[ 1.01] get 4: total_cnt=1 throughput=0.987 avg_throughput=0.987
[ 1.02] scan 5: total_cnt=1 throughput=0.984 avg_throughput=0.984
[ 1.02] get 5: total_cnt=1 throughput=0.983 avg_throughput=0.983
[ 1.02] get 6: total_cnt=1 throughput=0.982 avg_throughput=0.982
[ 1.02] scan 4: total_cnt=1 throughput=0.980 avg_throughput=0.980
[ 1.02] get 7: total_cnt=1 throughput=0.978 avg_throughput=0.978
[ 1.03] get 1: total_cnt=1 throughput=0.975 avg_throughput=0.975
[ 1.03] scan 3: total_cnt=1 throughput=0.975 avg_throughput=0.975
[ 2.00] scan 6: total_cnt=3670 throughput=1838.162 avg_throughput=1833.167
[ 2.02] get 5: total_cnt=15 throughput=13.972 avg_throughput=7.429
[ 2.02] get 4: total_cnt=2 throughput=0.992 avg_throughput=0.990
[ 2.02] scan 5: total_cnt=2 throughput=0.993 avg_throughput=0.989
[ 3.00] scan 6: total_cnt=5508 throughput=1836.164 avg_throughput=1834.166
[ 3.00] scan 0: total_cnt=1 throughput=0.333 avg_throughput=0.333
[ 3.00] scan 2: total_cnt=5 throughput=0.500 avg_throughput=1.666
[ 3.00] get 2: total_cnt=2 throughput=0.501 avg_throughput=0.666
[ 3.01] scan 7: total_cnt=2 throughput=0.501 avg_throughput=0.664
[ 3.01] get 3: total_cnt=2 throughput=0.500 avg_throughput=0.664
[ 3.02] get 5: total_cnt=22 throughput=6.986 avg_throughput=7.282
[ 3.02] scan 3: total_cnt=2 throughput=0.501 avg_throughput=0.662
[ 3.02] get 0: total_cnt=1 throughput=0.331 avg_throughput=0.331
[ 3.02] scan 1: total_cnt=1 throughput=0.331 avg_throughput=0.331
[ 3.07] scan 5: total_cnt=3 throughput=0.954 avg_throughput=0.977
[ 3.07] get 6: total_cnt=2 throughput=0.487 avg_throughput=0.651
[ 3.07] scan 4: total_cnt=2 throughput=0.487 avg_throughput=0.651
[ 3.08] get 7: total_cnt=2 throughput=0.487 avg_throughput=0.650
[ 3.08] get 1: total_cnt=2 throughput=0.487 avg_throughput=0.650
[ 4.02] get 5: total_cnt=813 throughput=790.210 avg_throughput=202.138
[ 4.02] scan 2: total_cnt=6 throughput=0.979 avg_throughput=1.492
[ 4.03] get 2: total_cnt=3 throughput=0.979 avg_throughput=0.745
[ 4.03] scan 7: total_cnt=3 throughput=0.980 avg_throughput=0.744
[ 4.03] get 3: total_cnt=3 throughput=0.981 avg_throughput=0.745
[ 4.03] get 4: total_cnt=3 throughput=0.498 avg_throughput=0.744
[ 4.03] scan 6: total_cnt=5575 throughput=64.985 avg_throughput=1382.003
[ 4.07] scan 5: total_cnt=95 throughput=91.908 avg_throughput=23.330
[ 4.08] scan 4: total_cnt=7 throughput=4.995 avg_throughput=1.718
[ 4.08] scan 1: total_cnt=2 throughput=0.951 avg_throughput=0.491
[ 4.08] scan 0: total_cnt=2 throughput=0.927 avg_throughput=0.490
[ 5.01] get 6: total_cnt=3 throughput=0.517 avg_throughput=0.599
[ 5.01] get 7: total_cnt=3 throughput=0.517 avg_throughput=0.599
[ 5.01] get 1: total_cnt=3 throughput=0.517 avg_throughput=0.599
[ 5.01] scan 3: total_cnt=3 throughput=0.503 avg_throughput=0.599
[ 5.01] get 0: total_cnt=2 throughput=0.503 avg_throughput=0.399
<<< BEGIN
scan: 1134.5541401273886
get: 320.0636942675159
>>> END
after parallelization
[info] total_page=6400, duration_ms=5000, latency=1, lru_k_size=16, bpm_size=64, scan_thread_cnt=8, get_thread_cnt=8
[info] benchmark start
[ 1.00] get 6: total_cnt=51 throughput=50.949 avg_throughput=50.949
[ 1.00] get 1: total_cnt=50 throughput=49.850 avg_throughput=49.850
[ 1.00] get 0: total_cnt=59 throughput=58.824 avg_throughput=58.824
[ 1.00] scan 7: total_cnt=63 throughput=62.812 avg_throughput=62.812
[ 1.01] get 4: total_cnt=70 throughput=69.513 avg_throughput=69.513
[ 1.01] scan 1: total_cnt=54 throughput=53.571 avg_throughput=53.571
[ 1.01] scan 6: total_cnt=60 throughput=59.583 avg_throughput=59.583
[ 1.01] scan 0: total_cnt=61 throughput=60.456 avg_throughput=60.456
[ 1.01] scan 2: total_cnt=57 throughput=56.492 avg_throughput=56.492
[ 1.01] scan 3: total_cnt=59 throughput=58.532 avg_throughput=58.532
[ 1.01] get 3: total_cnt=42 throughput=41.667 avg_throughput=41.667
[ 1.01] get 7: total_cnt=55 throughput=54.402 avg_throughput=54.402
[ 1.01] get 5: total_cnt=63 throughput=62.315 avg_throughput=62.315
[ 1.01] scan 5: total_cnt=58 throughput=57.143 avg_throughput=57.143
[ 1.02] scan 4: total_cnt=59 throughput=58.014 avg_throughput=58.014
[ 1.02] get 2: total_cnt=51 throughput=50.049 avg_throughput=50.049
[ 2.01] get 0: total_cnt=125 throughput=65.606 avg_throughput=62.220
[ 2.01] get 4: total_cnt=144 throughput=73.705 avg_throughput=71.606
[ 2.01] get 1: total_cnt=114 throughput=63.492 avg_throughput=56.688
[ 2.01] scan 7: total_cnt=122 throughput=58.416 avg_throughput=60.606
[ 2.02] scan 5: total_cnt=111 throughput=52.947 avg_throughput=55.060
[ 2.02] get 6: total_cnt=129 throughput=76.772 avg_throughput=63.956
[ 2.02] scan 3: total_cnt=124 throughput=64.356 avg_throughput=61.447
[ 2.02] scan 1: total_cnt=122 throughput=67.127 avg_throughput=60.366
[ 2.02] get 7: total_cnt=127 throughput=71.217 avg_throughput=62.809
[ 2.02] scan 6: total_cnt=115 throughput=54.028 avg_throughput=56.790
[ 2.03] scan 4: total_cnt=118 throughput=58.185 avg_throughput=58.099
[ 2.03] scan 0: total_cnt=131 throughput=68.359 avg_throughput=64.437
[ 2.03] get 2: total_cnt=121 throughput=68.966 avg_throughput=59.489
[ 2.04] scan 2: total_cnt=119 throughput=60.370 avg_throughput=58.448
[ 2.03] get 3: total_cnt=120 throughput=76.023 avg_throughput=58.997
[ 2.04] get 5: total_cnt=126 throughput=61.284 avg_throughput=61.795
[ 3.02] get 4: total_cnt=197 throughput=52.789 avg_throughput=65.340
[ 3.02] scan 5: total_cnt=174 throughput=62.687 avg_throughput=57.597
[ 3.02] get 0: total_cnt=186 throughput=60.039 avg_throughput=61.488
[ 3.03] scan 3: total_cnt=184 throughput=59.465 avg_throughput=60.786
[ 3.03] get 6: total_cnt=204 throughput=74.184 avg_throughput=67.371
[ 3.03] scan 1: total_cnt=195 throughput=72.206 avg_throughput=64.314
[ 3.03] get 1: total_cnt=187 throughput=71.569 avg_throughput=61.696
[ 3.03] scan 6: total_cnt=178 throughput=62.500 avg_throughput=58.688
[ 3.03] scan 4: total_cnt=185 throughput=66.866 avg_throughput=60.996
[ 3.03] scan 0: total_cnt=191 throughput=59.940 avg_throughput=62.953
[ 3.04] scan 7: total_cnt=189 throughput=65.239 avg_throughput=62.171
[ 3.04] get 5: total_cnt=197 throughput=70.858 avg_throughput=64.781
[ 3.04] get 7: total_cnt=197 throughput=68.493 avg_throughput=64.717
[ 3.04] scan 2: total_cnt=180 throughput=60.456 avg_throughput=59.113
[ 3.04] get 3: total_cnt=199 throughput=78.140 avg_throughput=65.353
[ 3.08] get 2: total_cnt=192 throughput=68.204 avg_throughput=62.439
[ 4.03] scan 5: total_cnt=235 throughput=60.396 avg_throughput=58.298
[ 4.03] get 4: total_cnt=265 throughput=66.929 avg_throughput=65.741
[ 4.03] get 6: total_cnt=270 throughput=65.803 avg_throughput=66.981
[ 4.04] scan 0: total_cnt=249 throughput=57.769 avg_throughput=61.664
[ 4.04] get 1: total_cnt=261 throughput=73.559 avg_throughput=64.652
[ 4.04] scan 3: total_cnt=244 throughput=59.289 avg_throughput=60.411
[ 4.04] scan 6: total_cnt=249 throughput=70.577 avg_throughput=61.649
[ 4.04] scan 4: total_cnt=241 throughput=55.666 avg_throughput=59.668
[ 4.04] get 0: total_cnt=259 throughput=71.709 avg_throughput=64.061
[ 4.04] scan 1: total_cnt=265 throughput=69.102 avg_throughput=65.513
[ 4.04] scan 7: total_cnt=248 throughput=58.765 avg_throughput=61.325
[ 4.05] get 7: total_cnt=262 throughput=64.293 avg_throughput=64.612
[ 4.06] get 5: total_cnt=269 throughput=70.588 avg_throughput=66.240
[ 4.06] scan 2: total_cnt=249 throughput=67.847 avg_throughput=61.300
[ 4.07] get 3: total_cnt=263 throughput=62.745 avg_throughput=64.699
[ 4.09] get 2: total_cnt=262 throughput=68.898 avg_throughput=64.043
<<< BEGIN
scan: 491.01078705553334
get: 516.7798641630044
>>> END
factored out blocking writing opt outside the lock
[info] total_page=6400, duration_ms=5000, latency=1, lru_k_size=16, bpm_size=64, scan_thread_cnt=8, get_thread_cnt=8
[info] benchmark start
[ 1.00] scan 5: total_cnt=62 throughput=61.815 avg_throughput=61.815
[ 1.00] scan 4: total_cnt=73 throughput=72.637 avg_throughput=72.637
[ 1.00] get 1: total_cnt=68 throughput=67.797 avg_throughput=67.797
[ 1.01] scan 6: total_cnt=67 throughput=66.337 avg_throughput=66.337
[ 1.00] get 2: total_cnt=84 throughput=83.749 avg_throughput=83.749
[ 1.01] scan 2: total_cnt=70 throughput=69.170 avg_throughput=69.170
[ 1.01] get 4: total_cnt=71 throughput=70.227 avg_throughput=70.227
[ 1.01] get 7: total_cnt=70 throughput=69.376 avg_throughput=69.376
[ 1.00] get 0: total_cnt=69 throughput=68.794 avg_throughput=68.794
[ 1.01] get 5: total_cnt=66 throughput=65.153 avg_throughput=65.153
[ 1.01] get 6: total_cnt=73 throughput=71.992 avg_throughput=71.992
[ 1.00] scan 0: total_cnt=73 throughput=72.637 avg_throughput=72.637
[ 1.00] get 3: total_cnt=61 throughput=60.757 avg_throughput=60.757
[ 1.02] scan 3: total_cnt=53 throughput=52.012 avg_throughput=52.012
[ 1.02] scan 7: total_cnt=71 throughput=69.608 avg_throughput=69.608
[ 1.01] scan 1: total_cnt=67 throughput=66.534 avg_throughput=66.534
[ 2.00] get 0: total_cnt=132 throughput=62.937 avg_throughput=65.868
[ 2.01] scan 5: total_cnt=117 throughput=54.672 avg_throughput=58.238
[ 2.01] scan 0: total_cnt=134 throughput=60.697 avg_throughput=66.667
[ 2.01] get 3: total_cnt=123 throughput=61.692 avg_throughput=61.224
[ 2.01] scan 4: total_cnt=137 throughput=63.682 avg_throughput=68.159
[ 2.02] get 4: total_cnt=140 throughput=68.725 avg_throughput=69.479
[ 2.02] scan 1: total_cnt=133 throughput=65.411 avg_throughput=65.972
[ 2.02] get 2: total_cnt=147 throughput=62.008 avg_throughput=72.808
[ 2.02] scan 7: total_cnt=131 throughput=59.821 avg_throughput=64.755
[ 2.02] scan 6: total_cnt=123 throughput=55.611 avg_throughput=60.982
[ 2.02] get 1: total_cnt=134 throughput=64.579 avg_throughput=66.173
[ 2.02] scan 2: total_cnt=137 throughput=66.337 avg_throughput=67.755
[ 2.02] get 7: total_cnt=127 throughput=56.324 avg_throughput=62.840
[ 2.02] get 6: total_cnt=137 throughput=63.304 avg_throughput=67.654
[ 2.02] get 5: total_cnt=134 throughput=67.797 avg_throughput=66.468
[ 2.03] scan 3: total_cnt=117 throughput=63.054 avg_throughput=57.522
[ 3.00] get 0: total_cnt=239 throughput=106.893 avg_throughput=79.534
[ 3.01] get 3: total_cnt=226 throughput=102.692 avg_throughput=75.033
[ 3.01] scan 4: total_cnt=244 throughput=106.574 avg_throughput=80.956
[ 3.02] scan 5: total_cnt=224 throughput=105.419 avg_throughput=74.074
[ 3.03] scan 2: total_cnt=233 throughput=95.522 avg_throughput=76.974
[ 3.03] get 2: total_cnt=245 throughput=97.126 avg_throughput=80.911
[ 3.02] scan 1: total_cnt=231 throughput=97.319 avg_throughput=76.414
[ 3.03] get 6: total_cnt=232 throughput=94.622 avg_throughput=76.593
[ 3.02] get 4: total_cnt=247 throughput=106.151 avg_throughput=81.707
[ 3.02] scan 6: total_cnt=220 throughput=96.326 avg_throughput=72.751
[ 3.02] scan 0: total_cnt=234 throughput=98.912 avg_throughput=77.458
[ 3.03] get 5: total_cnt=249 throughput=113.749 avg_throughput=82.260
[ 3.03] get 7: total_cnt=231 throughput=103.483 avg_throughput=76.338
[ 3.02] scan 7: total_cnt=226 throughput=94.905 avg_throughput=74.735
[ 3.04] scan 3: total_cnt=223 throughput=104.950 avg_throughput=73.259
[ 3.05] get 1: total_cnt=250 throughput=113.392 avg_throughput=82.021
[ 4.01] get 0: total_cnt=376 throughput=136.863 avg_throughput=93.859
[ 4.02] get 3: total_cnt=364 throughput=137.313 avg_throughput=90.615
[ 4.02] scan 4: total_cnt=357 throughput=112.550 avg_throughput=88.850
[ 4.02] get 4: total_cnt=384 throughput=136.863 avg_throughput=95.427
[ 4.03] scan 7: total_cnt=345 throughput=118.762 avg_throughput=85.693
[ 4.03] scan 1: total_cnt=355 throughput=123.260 avg_throughput=88.111
[ 4.03] get 5: total_cnt=400 throughput=150.249 avg_throughput=99.206
[ 4.05] scan 3: total_cnt=349 throughput=124.752 avg_throughput=86.088
[ 4.04] scan 6: total_cnt=339 throughput=117.589 avg_throughput=83.994
[ 4.04] scan 5: total_cnt=349 throughput=123.518 avg_throughput=86.472
[ 4.05] get 6: total_cnt=365 throughput=129.756 avg_throughput=90.035
[ 4.04] get 7: total_cnt=375 throughput=142.574 avg_throughput=92.914
[ 4.04] scan 0: total_cnt=358 throughput=122.047 avg_throughput=88.680
[ 4.04] scan 2: total_cnt=357 throughput=122.651 avg_throughput=88.410
[ 4.05] get 2: total_cnt=384 throughput=135.875 avg_throughput=94.791
[ 4.05] get 1: total_cnt=377 throughput=126.494 avg_throughput=93.040
<<< BEGIN
scan: 751.3470365196567
get: 804.6298144083017
>>> END