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In a new test, it was found that SMES/ASLCx/1T2015 (1700 Threads, 3047 comments) was slowing down over time. To identify what was happening, a new course was seeded which we will call DAPI (1000 Threads, 500 comments). In the analysis of the forums, we saw that the median body size was 250 characters. Our PATCH operations can be 4, 250, 1000, 5000, or 10000 characters. This test was run over 10 hours. The decrease in response time needed to be addressed.
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| title | page size vs response time |
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Over time DAPI (1000 threads, 500 comments) slowed down over time. 
| Name | reqs | # | fails | Avg | Min | Max | Median | req/s | 95% |
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| GET | GET_comment_list | 15793 | 0(0.00%) | 220 | 162 | 3116 | 200 | 0.2 | 340 | | GET | GET_thread | 955097 | 1(0.00%) | 214 | -8 | 4509 | 200 | 23.8 | 290 | | GET | GET_thread_list | 510921 | 0(0.00%) | 445 | 15 | 5595 | 420 | 11.6 | 810 | | PATCH | PATCH_comment | 15792 | 0(0.00%) | 337 | 187 | 3851 | 320 | 0.2 | 490 | | PATCH | PATCH_thread | 17333 | 164(0.94%) | 273 | 161 | 3019 | 250 | 0.5 | 400 |
When running a similar test with a more verbose output, we clearly saw that the page size had an effect on the response time. Although not shown here, larger content size was somewhat correlated to slower response times, but page_size had the better correlation. | Name | reqs | # | fails | Avg | Min | Max | Median | req/s | 95% |
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| GET | page=1&page_size=100 | 238 | 0(0.00%) | 791 | 655 | 1990 | 750 | 0.4 | 960 | | GET | page=2&page_size=100 | 282 | 0(0.00%) | 762 | 659 | 1526 | 730 | 0.4 | 910 | | GET | page=1&page_size=75 | 240 | 0(0.00%) | 651 | 544 | 1038 | 620 | 0.2 | 830 | | GET | page=2&page_size=75 | 255 | 0(0.00%) | 677 | 573 | 1628 | 650 | 0 | 820 | | GET | page=7&page_size=100 | 260 | 0(0.00%) | 568 | 461 | 2637 | 520 | 0.4 | 710 | | GET | page=6&page_size=100 | 232 | 0(0.00%) | 559 | 466 | 843 | 520 | 0.1 | 710 | | GET | page=9&page_size=100 | 222 | 0(0.00%) | 568 | 460 | 1907 | 530 | 0.5 | 700 | | GET | page=3&page_size=100 | 262 | 0(0.00%) | 556 | 462 | 1807 | 520 | 0.2 | 700 | | GET | page=5&page_size=100 | 259 | 0(0.00%) | 556 | 463 | 1375 | 510 | 0.3 | 700 | | GET | page=4&page_size=100 | 276 | 0(0.00%) | 555 | 456 | 840 | 520 | 0.2 | 690 | | GET | page=8&page_size=100 | 236 | 0(0.00%) | 548 | 468 | 903 | 520 | 0.1 | 680 | | GET | page=3&page_size=75 | 251 | 0(0.00%) | 543 | 445 | 1348 | 510 | 0.3 | 670 | | GET | page=2&page_size=50 | 278 | 0(0.00%) | 507 | 415 | 1141 | 480 | 0.5 | 670 | | GET | page=1&page_size=50 | 251 | 0(0.00%) | 512 | 425 | 1043 | 490 | 0.1 | 660 | | GET | page=8&page_size=75 | 237 | 0(0.00%) | 481 | 397 | 1644 | 440 | 0.1 | 650 | | GET | page=3&page_size=50 | 247 | 0(0.00%) | 523 | 451 | 903 | 500 | 0.4 | 640 | | GET | page=6&page_size=75 | 238 | 0(0.00%) | 492 | 398 | 1634 | 450 | 0.3 | 640 | | GET | page=4&page_size=75 | 218 | 0(0.00%) | 480 | 395 | 886 | 440 | 0.2 | 630 | | GET | page=7&page_size=75 | 227 | 0(0.00%) | 474 | 391 | 795 | 440 | 0.5 | 620 | | GET | page=5&page_size=75 | 239 | 0(0.00%) | 466 | 388 | 1394 | 440 | 0.2 | 610 | | GET | page=4&page_size=50 | 237 | 0(0.00%) | 453 | 371 | 1010 | 420 | 0.2 | 610 | | GET | page=9&page_size=75 | 216 | 0(0.00%) | 467 | 397 | 996 | 430 | 0.4 | 600 | | GET | page=6&page_size=50 | 252 | 0(0.00%) | 391 | 321 | 1065 | 360 | 0.4 | 540 | | GET | page=5&page_size=25 | 249 | 0(0.00%) | 392 | 323 | 1367 | 370 | 0.4 | 530 | | GET | page=7&page_size=50 | 243 | 0(0.00%) | 392 | 319 | 997 | 360 | 0.4 | 530 | | GET | page=9&page_size=50 | 221 | 0(0.00%) | 391 | 330 | 658 | 360 | 0 | 520 | | GET | page=8&page_size=50 | 241 | 0(0.00%) | 388 | 317 | 1300 | 360 | 0.4 | 520 | | GET | page=5&page_size=50 | 204 | 0(0.00%) | 386 | 322 | 723 | 360 | 0.1 | 520 | | GET | page=2&page_size=25 | 259 | 0(0.00%) | 363 | 299 | 1124 | 340 | 0.4 | 520 | | GET | page=1&page_size=25 | 242 | 0(0.00%) | 373 | 296 | 1142 | 350 | 0.4 | 510 | | GET | page=4&page_size=25 | 238 | 0(0.00%) | 361 | 292 | 1171 | 340 | 0.3 | 500 | | GET | page=6&page_size=25 | 256 | 0(0.00%) | 365 | 312 | 687 | 350 | 0.3 | 480 | | GET | page=3&page_size=25 | 232 | 0(0.00%) | 356 | 302 | 752 | 340 | 0.9 | 480 | | GET | page=7&page_size=25 | 261 | 0(0.00%) | 362 | 310 | 590 | 350 | 0.1 | 470 | | GET | page=9&page_size=25 | 274 | 0(0.00%) | 304 | 254 | 797 | 280 | 0.3 | 430 | | GET | page=8&page_size=25 | 232 | 0(0.00%) | 300 | 253 | 644 | 280 | 0 | 420 | | GET | page=8&page_size=1 | 235 | 0(0.00%) | 228 | 191 | 1025 | 210 | 0 | 320 | | GET | page=3&page_size=1 | 255 | 0(0.00%) | 235 | 185 | 1106 | 220 | 0.2 | 310 | | GET | page=9&page_size=1 | 248 | 0(0.00%) | 234 | 184 | 1147 | 210 | 0.3 | 310 | | GET | page=5&page_size=1 | 247 | 0(0.00%) | 233 | 186 | 851 | 220 | 0.5 | 300 | | GET | page=7&page_size=1 | 231 | 0(0.00%) | 234 | 188 | 2104 | 220 | 0.3 | 290 | | GET | page=2&page_size=1 | 251 | 0(0.00%) | 226 | 187 | 972 | 220 | 0.4 | 290 | | GET | page=1&page_size=1 | 255 | 0(0.00%) | 223 | 186 | 461 | 210 | 0.3 | 290 | | GET | page=4&page_size=1 | 260 | 0(0.00%) | 222 | 188 | 400 | 210 | 0.3 | 290 | | GET | page=6&page_size=1 | 266 | 0(0.00%) | 221 | 187 | 373 | 220 | 0.1 | 280 |
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