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Results on both machines over per-connection emulated links: seven grace delay settings with a fifth client CPU; the promising ones over three link qualities (100 Mbit/s 2 ms 0.1%, 20 Mbit/s 5 ms 0.5%, 5 Mbit/s 25 ms 1%); copying against splice() with and without grace delay, the CONNECT mix included; and the slow link with waits matched to its rate (10 and 20 ms). Grace delay saves 35-46% of 3proxy's CPU per gigabyte on streams at 20 Mbit/s and 21-29% at 5 Mbit/s with a 10 ms wait, does nothing on fast links, and costs CPU with waits too short for the rate or once the CPU is exhausted. Over these links splice() and copying cost about the same in the mix scenarios. A caveat says that every scenario but the mix ones is synthetic. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
4.7 KiB
4.7 KiB
| 1 | proxy | scenario | rep | gbit | rate | p50_ms | p90_ms | p99_ms | errors | timeouts | retrans | prx_cpu_s | prx_task_s | cpu_s_per_gb | cpu_us_per_req | peak_mb | cli_util | prx_util | srv_util | cli_thread | srv_thread | bound |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 3proxy-devel-s0 | mix-connect-3k | 0 | 1.09057256 | 2997.8 | 8.192 | 20.48 | 63.488 | 0 | 0 | 0 | 6.02 | 2.3004629999999997 | 4.416028952718194 | 200.81393021549135 | 1375.92578125 | 0.532912889239259 | 0.5788461538461539 | 0.2175609756097561 | 1.0796907002277987 | 0.25960126569539915 | client |
| 3 | 3proxy-devel-s | mix-connect-3k | 0 | 1.084848664 | 2998 | 8.192 | 20.48 | 65.536 | 0 | 0 | 0 | 6.1 | 2.1585799999999997 | 4.49832327949477 | 203.46897931954638 | 1392.171875 | 0.5305313243457573 | 0.5876685934489403 | 0.22818137493905413 | 1.086275992060578 | 0.27561390060532903 | client |
| 4 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 0 | 1.08490678 | 2997.9 | 8.704 | 21.504 | 69.632 | 0 | 0 | 0 | 7.16 | 2.854164 | 5.279716290463223 | 238.83385036192 | 1369.296875 | 0.5430740037950664 | 0.6685340802987861 | 0.2453095684803002 | 1.0918605745931909 | 0.28814814422478635 | client |
| 5 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 0 | 1.0857003928 | 2997.7 | 8.704 | 21.504 | 63.488 | 0 | 0 | 0 | 5.93 | 2.0629370000000002 | 4.369529597171202 | 197.81832738432797 | 1394.9453125 | 0.5377679823682628 | 0.576287657920311 | 0.2249015748031496 | 1.0876212796486375 | 0.269239202915807 | client |
| 6 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 0 | 1.084571192 | 2995.4 | 8.192 | 21.504 | 65.536 | 0 | 0 | 0 | 6.57 | 2.5594940000000004 | 4.846154903218193 | 219.33631568404888 | 1365.37890625 | 0.5122185876467192 | 0.6151685393258427 | 0.2225392296718973 | 1.0228580129089764 | 0.2686912891896779 | client |
| 7 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 0 | 1.0849829784 | 2997.1 | 8.192 | 20.48 | 61.44 | 0 | 0 | 0 | 6.07 | 2.142825 | 4.475646251299752 | 202.52911147442526 | 1386.18359375 | 0.5381076215243049 | 0.5916179337231969 | 0.23080708661417323 | 1.0913405748248093 | 0.2822375757385628 | client |
| 8 | 3proxy-devel-s | mix-connect-3k | 1 | 1.1006223696 | 2998.3 | 8.192 | 20.48 | 65.536 | 0 | 0 | 0 | 5.95 | 2.065274 | 4.324825781734684 | 198.44578594536904 | 1374.83984375 | 0.5279761904761905 | 0.5710172744721689 | 0.22773722627737225 | 1.0751445744102113 | 0.2710467044624077 | client |
| 9 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 1 | 1.0853468335999998 | 2997.7 | 8.704 | 21.504 | 65.536 | 0 | 0 | 0 | 6.28 | 2.3797079999999995 | 4.628935050499787 | 209.49394535810788 | 1374.6640625 | 0.5191020086648287 | 0.596958174904943 | 0.2238372093023256 | 1.0773453390741867 | 0.2704894879470544 | client |
| 10 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 1 | 1.0869423327999999 | 2997.4 | 8.704 | 21.504 | 65.536 | 0 | 0 | 0 | 6.96 | 2.633427 | 5.122626869869577 | 232.20124107559886 | 1386.875 | 0.513723263297369 | 0.6426592797783933 | 0.23446987389070528 | 1.077469368174608 | 0.28794917818745824 | client |
| 11 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 1 | 1.0852738 | 2998.1 | 8.192 | 21.504 | 65.536 | 0 | 0 | 0 | 6.3 | 2.362376 | 4.643989378532864 | 210.13308428671493 | 1382.8828125 | 0.5331086439333862 | 0.6063522617901829 | 0.22975609756097562 | 1.0868367970111827 | 0.2685501404340731 | client |
| 12 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 1 | 1.0887815688 | 2997.4 | 8.192 | 21.504 | 63.488 | 0 | 0 | 0 | 6.39 | 2.3711580000000003 | 4.695156628738846 | 213.18476012544204 | 1387.34765625 | 0.5091539795721719 | 0.597196261682243 | 0.22714285714285715 | 1.0737215311385802 | 0.2780352162949828 | client |
| 13 | 3proxy-devel-s0 | mix-connect-3k | 1 | 1.0899739464 | 2997.6 | 8.192 | 20.48 | 63.488 | 0 | 0 | 0 | 6.01 | 2.257255 | 4.411114610473041 | 200.49372831598612 | 1365.37890625 | 0.5386142545165773 | 0.5818005808325266 | 0.22266009852216748 | 1.083677960649551 | 0.27036867692999966 | client |
| 14 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 2 | 1.0977020288 | 2997.9 | 8.704 | 21.504 | 65.536 | 0 | 0 | 0 | 6.63 | 2.569765 | 4.831912359493673 | 221.1548083658561 | 1390.73828125 | 0.5225983173547251 | 0.6320305052430887 | 0.22393080249879865 | 1.0812185933377123 | 0.26165715118969096 | client |
| 15 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 2 | 1.0840546376 | 2997.3 | 8.704 | 21.504 | 65.536 | 0 | 0 | 0 | 6.51 | 2.4356719999999994 | 4.804185895583681 | 217.1954759283355 | 1382.1328125 | 0.5221289584128196 | 0.6078431372549019 | 0.24045261669024046 | 1.0866627941332638 | 0.2963291754991677 | client |
| 16 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 2 | 1.0904912975999999 | 2998.1 | 8.192 | 21.504 | 65.536 | 0 | 0 | 0 | 6.34 | 2.464593 | 4.651114604181322 | 211.46726259964643 | 1369.23046875 | 0.5217642526964561 | 0.590316573556797 | 0.2328767123287671 | 1.0831140488530273 | 0.27621035156444457 | client |
| 17 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 2 | 1.0862548424 | 2996.9 | 8.192 | 21.504 | 65.536 | 0 | 0 | 0 | 6.49 | 2.3606550000000004 | 4.779725527877656 | 216.5571090126464 | 1391.4453125 | 0.5307468477206596 | 0.6116870876531574 | 0.22874880611270296 | 1.0955294458224296 | 0.27369798340973905 | client |
| 18 | 3proxy-devel-s0 | mix-connect-3k | 2 | 1.0905377472 | 2998.3 | 8.192 | 20.48 | 65.536 | 0 | 0 | 0 | 6.57 | 2.550913 | 4.819640597948117 | 219.12417036320582 | 1365.5078125 | 0.5221922037823234 | 0.6140186915887851 | 0.2376425855513308 | 1.0836879408191835 | 0.2813898775819122 | client |
| 19 | 3proxy-devel-s | mix-connect-3k | 2 | 1.0851604207999999 | 2997.5 | 8.192 | 20.48 | 65.536 | 0 | 0 | 0 | 6.25 | 2.1970289999999997 | 4.607613680117368 | 208.5070892410342 | 1385.2578125 | 0.5342136854741897 | 0.6073858114674441 | 0.22698178237321517 | 1.092983209073947 | 0.275940522075071 | client |