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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>
13 KiB
13 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 | nginx-halfclose | relay-stream16 | 0 | 0.0580965283341228 | nan | nan | nan | nan | 0 | 0 | 524 | 1.13 | 0.406124 | 15.477945817437162 | nan | 31.3359375 | 0.022984836392657623 | 0.08961141950832673 | 0.034841810172206646 | 0.0023960396575042724 | 0.032726264035834784 | none |
| 3 | 3proxy-devel | relay-stream16 | 0 | 0.0601826873762334 | nan | nan | nan | nan | 0 | 0 | 507 | 1.28 | 0.482088 | 16.924826689774697 | nan | 3.703125 | 0.024148714384989577 | 0.11006018916595013 | 0.03747276688453159 | 0.003472228623639498 | 0.03643400956016301 | none |
| 4 | 3proxy-devel-g8000,2,2 | relay-stream16 | 0 | 0.05893573841144555 | nan | nan | nan | nan | 0 | 0 | 506 | 1.47 | 0.597434 | 19.849929134402654 | nan | 3.56640625 | 0.023795447827372154 | 0.10824742268041238 | 0.02905027932960894 | 0.0029577262149699636 | 0.031774940733077565 | none |
| 5 | 3proxy-devel-g6000,2,2 | relay-stream16 | 0 | 0.059244681576998234 | nan | nan | nan | nan | 0 | 0 | 485 | 1.47 | 0.6000409999999999 | 19.745087959397008 | nan | 3.58984375 | 0.02448341725994096 | 0.12661498708010335 | 0.032413491020586944 | 0.003472100858461073 | 0.03729790049022146 | none |
| 6 | 3proxy-devel-g6000,3,2 | relay-stream16 | 0 | 0.062373293322017485 | nan | nan | nan | nan | 0 | 0 | 510 | 1.51 | 0.62017 | 19.264859100647993 | nan | 3.5390625 | 0.026731470230862697 | 0.13017241379310346 | 0.03753819292885203 | 0.003472012836741796 | 0.038162573900301026 | none |
| 7 | 3proxy-devel-g8000,2,3 | relay-stream16 | 0 | 0.06007891052199976 | nan | nan | nan | nan | 0 | 0 | 503 | 1.3 | 0.534619 | 17.219119601779514 | nan | 3.421875 | 0.024297119055883373 | 0.11235955056179775 | 0.0284339457567804 | 0.003472448533985131 | 0.03383315403401946 | none |
| 8 | nginx-halfclose | mix-relay-3k | 0 | 1.0479029712 | 2992.8 | 102.4 | 311.296 | 1114.112 | 0 | 0 | 0 | 8.31 | 2.150728 | 6.34409881707567 | 277.66639935846035 | 628.296875 | 0.6217277486910995 | 0.7861873226111636 | 0.23131504257332072 | 1.1054824184695267 | 0.28322393020687336 | client |
| 9 | 3proxy-devel | mix-relay-3k | 0 | 1.045463836 | 2990.9 | 98.304 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.26 | 2.1951289999999997 | 6.32063948312412 | 276.171052191648 | 1384.6640625 | 0.6240443425076453 | 0.794995187680462 | 0.21501210653753028 | 1.1599624118597613 | 0.26641180252888486 | client |
| 10 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 0 | 1.0444737392 | 2991.3 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.57 | 2.3801600000000005 | 6.564071208962378 | 286.4975094440544 | 1389.22265625 | 0.6242459622494648 | 0.8352826510721247 | 0.21966731898238748 | 1.1735506354289986 | 0.2675385945204066 | client |
| 11 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 0 | 1.0533875248 | 2992.7 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.93 | 2.6137879999999996 | 6.781929567047404 | 298.39275570555014 | 1392.33203125 | 0.6123071061154506 | 0.8520992366412213 | 0.2165543792107796 | 1.1504391115779364 | 0.26840973071045293 | client |
| 12 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 0 | 1.0550464408 | 2993.2 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.67 | 2.5007859999999997 | 6.574118192124989 | 289.6565548576774 | 1384.76953125 | 0.5964912280701754 | 0.8163841807909604 | 0.22042755344418052 | 1.1505948732486277 | 0.27079099639781623 | client |
| 13 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 0 | 1.0485468552000001 | 2990.5 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.45 | 2.398693 | 6.447017571485249 | 282.56144457448585 | 1389.61328125 | 0.6145990922844176 | 0.8024691358024691 | 0.21830314585319352 | 1.154342749509722 | 0.2733443728405247 | client |
| 14 | nginx-halfclose | mix-http-3k | 0 | 1.052970464 | 2991.6 | 102.4 | 311.296 | 1114.112 | 0 | 0 | 0 | 8.33 | 3.1164490000000002 | 6.328762513133512 | 278.44631635245355 | 253.56640625 | 0.6227556596409055 | 0.8182711198428291 | 0.15575396825396826 | 1.1653813098823755 | 0.2347920116540474 | client |
| 15 | 3proxy-devel | mix-http-3k | 0 | 1.0330163408 | 2987.3 | 475.136 | 1114.112 | 3801.088 | 0 | 0 | 0 | 10.45 | 4.351701 | 8.092805185952582 | 349.8142135038329 | 1773.2265625 | 0.6251937984496124 | 1.0 | 0.26253687315634217 | 1.1433558023316042 | 0.335726595629276 | client |
| 16 | 3proxy-devel-g8000,2,2 | mix-http-3k | 0 | 1.025684396 | 2943.7 | 655.36 | 1441.792 | 3407.872 | 0 | 0 | 0 | 10.65 | 4.5055119999999995 | 8.306648744220539 | 361.7895845364677 | 1773.4453125 | 0.6096675582728315 | 1.0 | 0.26336061627347135 | 1.1280667385412937 | 0.33378119558251856 | client |
| 17 | 3proxy-devel-g6000,2,2 | mix-http-3k | 0 | 1.0539678168 | 3022.6 | 122.88 | 442.368 | 1245.184 | 0 | 0 | 0 | 10.06 | 4.04112 | 7.6359067817031665 | 332.8260438033481 | 1668.8203125 | 0.6199733180865257 | 0.9553656220322887 | 0.2664410058027079 | 1.1503753793438045 | 0.3438098246787037 | client |
| 18 | 3proxy-devel-g6000,3,2 | mix-http-3k | 0 | 1.0814707136 | 3082.3 | 188.416 | 884.736 | 2621.44 | 0 | 0 | 0 | 9.9 | 4.039849 | 7.323360587024961 | 321.1887227070694 | 1717.5703125 | 0.6344275107463853 | 0.9658536585365853 | 0.26179831097863887 | 1.1500554941778038 | 0.34185825012936955 | client |
| 19 | 3proxy-devel-g8000,2,3 | mix-http-3k | 0 | 1.0556501864 | 3041.4 | 253.952 | 917.504 | 3276.8 | 0 | 0 | 0 | 10.6 | 4.440325 | 8.03296405310046 | 348.52370618793975 | 1713.2734375 | 0.6173847029796925 | 0.9906542056074766 | 0.2597590361445783 | 1.1458895009606713 | 0.3378469429044519 | client |
| 20 | 3proxy-devel | relay-stream16 | 1 | 0.06007788264128722 | nan | nan | nan | nan | 0 | 0 | 524 | 1.22 | 0.457384 | 16.159481472439236 | nan | 3.40234375 | 0.024648498524561708 | 0.10508182601205857 | 0.03702090592334495 | 0.003472167398657406 | 0.03643141380919523 | none |
| 21 | 3proxy-devel-g8000,2,2 | relay-stream16 | 1 | 0.05465398919122805 | nan | nan | nan | nan | 0 | 0 | 526 | 1.38 | 0.540741 | 20.09268025405534 | nan | 3.3359375 | 0.024284475281873375 | 0.11855670103092783 | 0.034904013961605584 | 0.0034721307509335488 | 0.03381724855678897 | none |
| 22 | 3proxy-devel-g6000,2,2 | relay-stream16 | 1 | 0.05642808021052916 | nan | nan | nan | nan | 0 | 0 | 512 | 1.35 | 0.5485300000000001 | 19.038230346002774 | nan | 3.42578125 | 0.02362707535121328 | 0.10748407643312102 | 0.03170144462279294 | 0.003194488634587232 | 0.03112476041773637 | none |
| 23 | 3proxy-devel-g6000,3,2 | relay-stream16 | 1 | 0.0578872898157863 | nan | nan | nan | nan | 0 | 0 | 540 | 1.35 | 0.562536 | 18.557986697635137 | nan | 3.50390625 | 0.023946360153256706 | 0.10756972111553785 | 0.03211561621838619 | 0.003194400501455588 | 0.0335208613362412 | none |
| 24 | 3proxy-devel-g8000,2,3 | relay-stream16 | 1 | 0.05840979044086964 | nan | nan | nan | nan | 0 | 0 | 479 | 1.34 | 0.5286909999999999 | 18.256051199776785 | nan | 3.609375 | 0.02251676780581284 | 0.10634920634920635 | 0.030072173215717722 | 0.0031944128483163718 | 0.030325662539978496 | none |
| 25 | nginx-halfclose | relay-stream16 | 1 | 0.05715822030149582 | nan | nan | nan | nan | 0 | 0 | 534 | 1.1 | 0.40518299999999996 | 15.314478073677009 | nan | 31.1640625 | 0.023607012671411215 | 0.09482758620689655 | 0.035263387026556375 | 0.0034710505655027243 | 0.03381803997969899 | none |
| 26 | 3proxy-devel | mix-relay-3k | 1 | 1.0535302792 | 2993 | 102.4 | 327.68 | 1179.648 | 0 | 0 | 0 | 9.16 | 2.5332990000000004 | 6.955661497991809 | 306.0474440360842 | 1397.12890625 | 0.6349609375 | 0.8927875243664717 | 0.2296368989205103 | 1.1591762399655503 | 0.2855929937858432 | client |
| 27 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 1 | 1.0448114663999999 | 2991.7 | 102.4 | 311.296 | 1114.112 | 0 | 0 | 0 | 9.24 | 2.7791710000000003 | 7.074960639042236 | 308.85449744292544 | 1390.4765625 | 0.6144218195404446 | 0.8692380056444027 | 0.2335386072951208 | 1.1554225600858554 | 0.2897264352877657 | client |
| 28 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 1 | 1.0627011088 | 2998.2 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 9.19 | 2.678521 | 6.918219938908188 | 306.5172436795411 | 1388.9296875 | 0.6269303201506591 | 0.8702651515151515 | 0.23330152671755724 | 1.1587738482540246 | 0.28348295190544015 | client |
| 29 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 1 | 1.0522735288 | 2995.1 | 106.496 | 327.68 | 1179.648 | 0 | 0 | 0 | 9.8 | 3.0072289999999997 | 7.450534281652644 | 327.20109512203265 | 1386.66796875 | 0.6283432392273403 | 0.9133271202236719 | 0.23737612081170364 | 1.1354106673305011 | 0.29001937954079365 | client |
| 30 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 1 | 1.053673316 | 3002.1 | 106.496 | 344.064 | 1179.648 | 0 | 0 | 0 | 9.55 | 2.8851579999999997 | 7.250824220360156 | 318.1106558742214 | 1392.79296875 | 0.6238879424569373 | 0.9035004730368968 | 0.2332375478927203 | 1.1493963619160208 | 0.2886768986703586 | client |
| 31 | nginx-halfclose | mix-relay-3k | 1 | 1.0488772992 | 2991.3 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 9.32 | 2.358493 | 7.108553122168669 | 311.57022030555277 | 627.58984375 | 0.6390338164251208 | 0.9066147859922179 | 0.23842028278888347 | 1.1569916312766466 | 0.2902358398174421 | client |
| 32 | 3proxy-devel | mix-http-3k | 1 | 0.9961858912 | 2873.8 | 475.136 | 1179.648 | 3801.088 | 0 | 0 | 0 | 10.52 | 4.345532 | 8.44822243955105 | 366.06583617509915 | 1765.89453125 | 0.6295012516849605 | 1.0 | 0.2629016553067186 | 1.1396438741944577 | 0.3290647646839704 | client |
| 33 | 3proxy-devel-g8000,2,2 | mix-http-3k | 1 | 1.0426591832 | 2992.4 | 557.056 | 1376.256 | 3538.944 | 0 | 0 | 0 | 10.6 | 4.457991 | 8.133050700205064 | 354.23071781847347 | 1757.98828125 | 0.6283371472158658 | 1.0 | 0.27070217917675543 | 1.1419535721170821 | 0.3424190377790937 | client |
| 34 | 3proxy-devel-g6000,2,2 | mix-http-3k | 1 | 0.9806718456 | 2841.7 | 917.504 | 1638.4 | 3670.016 | 0 | 0 | 0 | 10.68 | 4.5016750000000005 | 8.712394506209733 | 375.83136854699654 | 1780.17578125 | 0.6126452104361074 | 1.0 | 0.26865671641791045 | 1.1219522729021847 | 0.3435291735756672 | client |
| 35 | 3proxy-devel-g6000,3,2 | mix-http-3k | 1 | 1.0350273728 | 2966.7 | 344.064 | 1048.576 | 4194.304 | 0 | 0 | 0 | 10.72 | 4.5020489999999995 | 8.285771203132379 | 361.34425455893756 | 1748.29296875 | 0.61281179138322 | 1.0 | 0.2714217328865486 | 1.1361686099871262 | 0.34832244581285454 | client |
| 36 | 3proxy-devel-g8000,2,3 | mix-http-3k | 1 | 1.0165405088 | 2946.2 | 524.288 | 1245.184 | 2752.512 | 0 | 0 | 0 | 10.45 | 4.344721 | 8.223971329847705 | 354.69418233656916 | 1766.58203125 | 0.6364694471387002 | 1.0 | 0.275726243229936 | 1.1476958815644471 | 0.3530344946152539 | client |
| 37 | nginx-halfclose | mix-http-3k | 1 | 1.060677436 | 2995 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 9.22 | 3.4369760000000005 | 6.954046300651201 | 307.8464106844741 | 246.5546875 | 0.6240105540897097 | 0.8714555765595463 | 0.16690374585111428 | 1.1497944293040547 | 0.227456949244111 | client |
| 38 | 3proxy-devel-g8000,2,2 | relay-stream16 | 2 | 0.059975459976235865 | nan | nan | nan | nan | 0 | 0 | 520 | 1.45 | 0.595631 | 19.23934273097826 | nan | 3.7109375 | 0.021888480587953348 | 0.11526232114467408 | 0.03697749196141479 | 0.0031944520182995173 | 0.03431765733765755 | none |
| 39 | 3proxy-devel-g6000,2,2 | relay-stream16 | 2 | 0.060498983699096544 | nan | nan | nan | nan | 0 | 0 | 502 | 1.41 | 0.589268 | 18.547321188038794 | nan | 3.37109375 | 0.024732726982607308 | 0.11235059760956176 | 0.035685645549318364 | 0.003993424067050843 | 0.03510702752615225 | none |
| 40 | 3proxy-devel-g6000,3,2 | relay-stream16 | 2 | 0.05830745921564441 | nan | nan | nan | nan | 0 | 0 | 494 | 1.34 | 0.5604359999999999 | 18.288709609794278 | nan | 3.53125 | 0.023148148148148147 | 0.10694333599361533 | 0.035256410256410256 | 0.0031944757397190594 | 0.03271069146691627 | none |
| 41 | 3proxy-devel-g8000,2,3 | relay-stream16 | 2 | 0.05798923205937536 | nan | nan | nan | nan | 0 | 0 | 490 | 1.25 | 0.521783 | 17.15241576270234 | nan | 3.58984375 | 0.021495470597267006 | 0.09571209800918837 | 0.029649595687331536 | 0.0030719141274004914 | 0.027629750266636017 | none |
| 42 | nginx-halfclose | relay-stream16 | 2 | 0.06205125496847971 | nan | nan | nan | nan | 0 | 0 | 499 | 1.13 | 0.4145 | 14.489438353466385 | nan | 31.4296875 | 0.023767746052001913 | 0.08968253968253968 | 0.03486973947895792 | 0.0031936576758660605 | 0.03271329063682694 | none |
| 43 | 3proxy-devel | relay-stream16 | 2 | 0.05861708492409218 | nan | nan | nan | nan | 0 | 0 | 512 | 1.26 | 0.488566 | 17.105048237322066 | nan | 3.71484375 | 0.025004341031429067 | 0.10890233362143474 | 0.03841117415975556 | 0.003471890691545698 | 0.03816527537171667 | none |
| 44 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 2 | 1.05435246 | 2994.6 | 106.496 | 393.216 | 1572.864 | 0 | 0 | 0 | 9.91 | 3.0004949999999995 | 7.519307158443013 | 330.9290055433113 | 1391.140625 | 0.6403816199376947 | 0.9584139264990329 | 0.23699705593719333 | 1.1603237581167172 | 0.2969427673512048 | client |
| 45 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 2 | 1.0496396472 | 2992.4 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 9.03 | 2.6074200000000003 | 6.882361979438003 | 301.76446999064297 | 1396.93359375 | 0.6227623892971547 | 0.8518867924528302 | 0.23920265780730898 | 1.15521017062388 | 0.29939994315919094 | client |
| 46 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 2 | 1.0504681063999999 | 2999.4 | 102.4 | 311.296 | 1114.112 | 0 | 0 | 0 | 9.3 | 2.67429 | 7.082556771282857 | 310.0620124024805 | 1392.65625 | 0.6178969227864829 | 0.8748824082784572 | 0.23847980997624704 | 1.1510758857669445 | 0.29502178298054915 | client |
| 47 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 2 | 1.0507065208 | 2998.2 | 102.4 | 327.68 | 1179.648 | 0 | 0 | 0 | 9.37 | 2.7868280000000003 | 7.134247148568757 | 312.5208458408378 | 1400.7421875 | 0.6255751533742331 | 0.8957934990439771 | 0.2312892322549493 | 1.1565160574012576 | 0.2846943495485611 | client |
| 48 | nginx-halfclose | mix-relay-3k | 2 | 1.0504430608 | 2991.6 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.53 | 2.079048 | 6.496306420267039 | 285.1317020992111 | 629.234375 | 0.6332551778038297 | 0.8305744888023369 | 0.24095796676441839 | 1.1638670643385067 | 0.29341045581166014 | client |
| 49 | 3proxy-devel | mix-relay-3k | 2 | 1.0487860176000001 | 2991.4 | 102.4 | 311.296 | 1179.648 | 0 | 0 | 0 | 8.56 | 2.2963029999999995 | 6.529453944924524 | 286.1536404359163 | 1388.3046875 | 0.6264825977056193 | 0.834307992202729 | 0.22412947523295734 | 1.1680242494475888 | 0.27787674023898645 | client |
| 50 | 3proxy-devel-g8000,2,2 | mix-http-3k | 2 | 1.025398412 | 2941.4 | 425.984 | 1114.112 | 4980.736 | 0 | 0 | 0 | 10.43 | 4.314386 | 8.137324870364631 | 354.59305092812946 | 1765.5625 | 0.6270987895353377 | 1.0 | 0.2664054848188051 | 1.148113797249149 | 0.332831674709283 | client |
| 51 | 3proxy-devel-g6000,2,2 | mix-http-3k | 2 | 1.0536451976 | 3029.4 | 253.952 | 1179.648 | 3670.016 | 0 | 0 | 0 | 10.79 | 4.585513000000001 | 8.192511122019088 | 356.176140489866 | 1742.08984375 | 0.6162528216704289 | 1.0 | 0.26622137404580154 | 1.12100459157456 | 0.34067422402649067 | client |
| 52 | 3proxy-devel-g6000,3,2 | mix-http-3k | 2 | 0.9972155152000001 | 2882.1 | 589.824 | 1376.256 | 2621.44 | 0 | 0 | 0 | 10.59 | 4.413561 | 8.49565602506783 | 367.44040803580725 | 1758.3203125 | 0.6103746397694525 | 1.0 | 0.2648622522957951 | 1.135120758128451 | 0.3352975183584869 | client |
| 53 | 3proxy-devel-g8000,2,3 | mix-http-3k | 2 | 1.0297388736 | 2959.4 | 524.288 | 1310.72 | 3932.16 | 0 | 0 | 0 | 10.82 | 4.589907999999999 | 8.40601459449457 | 365.6146516185713 | 1772.05078125 | 0.614275009366804 | 1.0 | 0.2636062470421202 | 1.1240307991501957 | 0.33348982314978015 | client |
| 54 | nginx-halfclose | mix-http-3k | 2 | 1.060427372 | 3031.1 | 118.784 | 360.448 | 1507.328 | 0 | 0 | 0 | 9.67 | 3.733978 | 7.295171931868993 | 319.02609613671603 | 251.328125 | 0.6376137904319195 | 0.9333976833976834 | 0.17039922103213243 | 1.1706006658401107 | 0.2376842232374629 | client |
| 55 | 3proxy-devel | mix-http-3k | 2 | 1.0544157344 | 3035.3 | 278.528 | 1015.808 | 3932.16 | 0 | 0 | 0 | 10.85 | 4.607362999999999 | 8.232047110847818 | 357.46054755707837 | 1723.23828125 | 0.6107672106546614 | 1.0 | 0.2753074739829707 | 1.1265654396961862 | 0.35521782194922885 | client |