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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 | 0.2933366800514752 | nan | nan | nan | nan | 0 | 0 | 1240 | 3.59 | 1.476093 | 9.778481387785613 | nan | 31.4140625 | 0.0811787072243346 | 0.3317929759704251 | 0.12674698795180722 | 0.010452107776179264 | 0.13290678107947132 | none |
| 3 | 3proxy-devel | relay-stream16 | 0 | 0.2919557387081775 | nan | nan | nan | nan | 0 | 0 | 1260 | 3.86 | 1.6873989999999999 | 10.562935039678981 | nan | 3.6015625 | 0.08146600835548803 | 0.35707678075855687 | 0.12108055957549445 | 0.008550573727599181 | 0.1328532717577393 | none |
| 4 | 3proxy-devel-g8000,2,2 | relay-stream16 | 0 | 0.283163524804514 | nan | nan | nan | nan | 0 | 0 | 1173 | 2.18 | 0.887591 | 6.150917188655696 | nan | 3.37890625 | 0.057604562737642584 | 0.20566037735849058 | 0.058173076923076925 | 0.009505556517474542 | 0.06838756248556623 | none |
| 5 | 3proxy-devel-g6000,2,2 | relay-stream16 | 0 | 0.28181879537691096 | nan | nan | nan | nan | 0 | 0 | 1218 | 2.49 | 1.035575 | 7.059528941959309 | nan | 3.6328125 | 0.06229819563152896 | 0.2344632768361582 | 0.06881616939364774 | 0.00855465906525198 | 0.07883418055143286 | none |
| 6 | 3proxy-devel-g6000,3,2 | relay-stream16 | 0 | 0.2815945491943915 | nan | nan | nan | nan | 0 | 0 | 1233 | 2.58 | 1.055768 | 7.320133094319449 | nan | 3.47265625 | 0.06213186395591868 | 0.24179943767572634 | 0.07067307692307692 | 0.00855472265397005 | 0.07975341200029636 | none |
| 7 | 3proxy-devel-g8000,2,3 | relay-stream16 | 0 | 0.2705159880757988 | nan | nan | nan | nan | 0 | 0 | 1224 | 2.15 | 0.858004 | 6.350444538206542 | nan | 3.61328125 | 0.05887939221272555 | 0.20302171860245516 | 0.06163401815575729 | 0.00855499311045036 | 0.06743477264701803 | none |
| 8 | nginx-halfclose | mix-relay-3k | 0 | 1.0851959448 | 2995.4 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 7.56 | 2.163834 | 5.573187062650365 | 252.38699338986447 | 592.3984375 | 0.6096849474912486 | 0.73828125 | 0.23039454456892353 | 1.2039820553181932 | 0.27946457320753126 | client |
| 9 | 3proxy-devel | mix-relay-3k | 0 | 1.0889570936 | 2996.6 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.1 | 2.1203469999999998 | 5.21599981613821 | 236.9351932189815 | 1343.58203125 | 0.6079534432589718 | 0.6940371456500489 | 0.2189176011701609 | 1.2002435191286174 | 0.264457182937593 | client |
| 10 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 0 | 1.088262436 | 2996.9 | 20.48 | 65.536 | 278.528 | 0 | 0 | 0 | 7.88 | 2.555279 | 5.7927203875297595 | 262.9383696486369 | 1355.671875 | 0.6001870907390084 | 0.7448015122873346 | 0.22667295004712534 | 1.177427609935371 | 0.27815701857979414 | client |
| 11 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 0 | 1.0864552072 | 2996.2 | 20.48 | 63.488 | 294.912 | 0 | 0 | 0 | 8.64 | 2.8800909999999997 | 6.361974202151902 | 288.36526266604363 | 1364.5 | 0.6040218004134561 | 0.8212927756653993 | 0.218957345971564 | 1.1835790421060297 | 0.2690810598592294 | client |
| 12 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 0 | 1.0878998464 | 2995.8 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 6.98 | 2.0935859999999997 | 5.13282543285411 | 232.99285666599906 | 1354.14453125 | 0.6053498740065905 | 0.6809756097560976 | 0.20980392156862746 | 1.197059044087641 | 0.25957298962411335 | client |
| 13 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 0 | 1.0872822847999999 | 2995.6 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.14 | 2.1468059999999998 | 5.253465525790934 | 238.3495793830952 | 1363.19140625 | 0.6085942057165079 | 0.6965853658536585 | 0.2144601856375183 | 1.1948233514437565 | 0.25999201241060915 | client |
| 14 | nginx-halfclose | mix-http-3k | 0 | 1.0884980504000001 | 2996.1 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.7 | 3.28733 | 5.6591741232208275 | 257.0007676646307 | 155.73828125 | 0.6048116374487131 | 0.7284768211920529 | 0.16170212765957448 | 1.1855294130820342 | 0.23409230503152492 | client |
| 15 | 3proxy-devel | mix-http-3k | 0 | 1.1369283704000002 | 3134.3 | 45.056 | 720.896 | 2752.512 | 0 | 0 | 0 | 9.66 | 4.382461 | 6.797261992223041 | 308.2027885014198 | 1699.33203125 | 0.6059281778453354 | 0.9208770257387988 | 0.27224371373307543 | 1.1647529520566606 | 0.3560806477466482 | client |
| 16 | 3proxy-devel-g8000,2,2 | mix-http-3k | 0 | 1.0888090296 | 2996.7 | 22.528 | 73.728 | 294.912 | 0 | 0 | 0 | 8.78 | 3.674124 | 6.4510853685521266 | 292.988954516635 | 1627.90234375 | 0.6074856046065259 | 0.8549172346640701 | 0.2638753651411879 | 1.1962699129025234 | 0.34386813105155567 | client |
| 17 | 3proxy-devel-g6000,2,2 | mix-http-3k | 0 | 1.0912994695999998 | 3019.2 | 34.816 | 163.84 | 1376.256 | 0 | 0 | 0 | 10.13 | 4.4599530000000005 | 7.426009290529945 | 335.519342872284 | 1621.68359375 | 0.6091254752851711 | 0.961100569259962 | 0.27705627705627706 | 1.1751278045848066 | 0.3588841238690364 | client |
| 18 | 3proxy-devel-g6000,3,2 | mix-http-3k | 0 | 1.097974112 | 3013.4 | 23.552 | 86.016 | 344.064 | 0 | 0 | 0 | 9.16 | 3.8947940000000005 | 6.674109999416817 | 303.9755757615982 | 1614.67578125 | 0.5955757231990925 | 0.876555023923445 | 0.25991399904443385 | 1.1752254920498695 | 0.328897964917448 | client |
| 19 | 3proxy-devel-g8000,2,3 | mix-http-3k | 0 | 1.0977753056 | 3021.2 | 22.528 | 77.824 | 294.912 | 0 | 0 | 0 | 8.56 | 3.535074 | 6.2380707281962025 | 283.33112670462066 | 1621.44140625 | 0.6084583901773534 | 0.8441814595660749 | 0.2521091811414392 | 1.1862440674502441 | 5.234336233467853 | origin |
| 20 | 3proxy-devel | relay-stream16 | 1 | 0.29111668080951064 | nan | nan | nan | nan | 0 | 0 | 1297 | 3.86 | 1.665805 | 10.593331975044963 | nan | 3.51171875 | 0.08288973384030418 | 0.3567467652495379 | 0.12094823415578132 | 0.009504536376304865 | 0.1301149870560847 | none |
| 21 | 3proxy-devel-g8000,2,2 | relay-stream16 | 1 | 0.2821226055124522 | nan | nan | nan | nan | 0 | 0 | 1170 | 2.4 | 0.946125 | 6.796788001113586 | nan | 3.53125 | 0.05987454856491162 | 0.2245088868101029 | 0.06385021603456553 | 0.009505896038690228 | 0.07123821223820694 | none |
| 22 | 3proxy-devel-g6000,2,2 | relay-stream16 | 1 | 0.2825338207715722 | nan | nan | nan | nan | 0 | 0 | 1225 | 2.62 | 1.0747360000000001 | 7.408826416558562 | nan | 3.58203125 | 0.0647673314339981 | 0.24554826616682288 | 0.07325301204819278 | 0.009505861783863477 | 0.0826184527344099 | none |
| 23 | 3proxy-devel-g6000,3,2 | relay-stream16 | 1 | 0.2842171136970218 | nan | nan | nan | nan | 0 | 0 | 1173 | 2.65 | 1.061184 | 7.449482501036292 | nan | 3.5703125 | 0.06455287640022783 | 0.2467411545623836 | 0.0703953712632594 | 0.010455689911074383 | 0.08069623199971136 | none |
| 24 | 3proxy-devel-g8000,2,3 | relay-stream16 | 1 | 0.27699078459616483 | nan | nan | nan | nan | 0 | 0 | 1175 | 2.35 | 0.923076 | 6.77847907313327 | nan | 3.5546875 | 0.05852175565266958 | 0.22065727699530516 | 0.0637278390033541 | 0.009505498353202253 | 0.07028328412973879 | none |
| 25 | nginx-halfclose | relay-stream16 | 1 | 0.29080874115345956 | nan | nan | nan | nan | 0 | 0 | 1281 | 3.58 | 1.465526 | 9.835517616807707 | nan | 31.13671875 | 0.08399847966552641 | 0.3314814814814815 | 0.12554321583775954 | 0.010454630150700138 | 0.13390498976246318 | none |
| 26 | 3proxy-devel | mix-relay-3k | 1 | 1.0863407264 | 2995.7 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.16 | 2.1269719999999994 | 5.272747178485972 | 239.00924658677437 | 1355.71875 | 0.6149031879522785 | 0.7019607843137254 | 0.21992110453648916 | 1.2063617566858404 | 0.27865596916819385 | client |
| 27 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 1 | 1.0876549936 | 2995.9 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.71 | 2.455441 | 5.670915902831194 | 257.35171400914584 | 1369.26171875 | 0.5911144578313253 | 0.7273584905660377 | 0.21157495256166983 | 1.17894350103768 | 0.26024362322250266 | client |
| 28 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 1 | 1.0870399296 | 2995.1 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.18 | 2.162294 | 5.284074525315394 | 239.7248839771627 | 1358.33984375 | 0.6035790702198016 | 0.6964112512124151 | 0.21050049067713444 | 1.1982503784197436 | 0.2629903381816076 | client |
| 29 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 1 | 1.086471468 | 2995 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.56 | 2.3681070000000006 | 5.566644111817578 | 252.42070116861436 | 1348.4765625 | 0.607673500094038 | 0.7125353440150801 | 0.22211675367821548 | 1.1858288746781498 | 0.2762264511421368 | client |
| 30 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 1 | 1.0879797432 | 2996.4 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.64 | 2.4456749999999996 | 5.617751652271755 | 254.9726338272594 | 1352.06640625 | 0.5872659176029963 | 0.7180451127819549 | 0.2229058211074302 | 1.1844088769178163 | 0.2775473991203667 | client |
| 31 | nginx-halfclose | mix-relay-3k | 1 | 1.0893298176 | 2997.1 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 6.85 | 1.934135 | 5.0306159910994435 | 228.5542691268226 | 590.80078125 | 0.6147076080578916 | 0.6715686274509803 | 0.22534516765285997 | 1.1906282553348189 | 0.2785736615511404 | client |
| 32 | 3proxy-devel | mix-http-3k | 1 | 1.0869819887999999 | 2995.9 | 29.696 | 327.68 | 1441.792 | 0 | 0 | 0 | 9.73 | 4.309403 | 7.161112217317727 | 324.7771955005174 | 1645.3046875 | 0.6037383177570094 | 0.9179245283018868 | 0.28814359943316015 | 1.1642212575406392 | 0.3606066214600466 | client |
| 33 | 3proxy-devel-g8000,2,2 | mix-http-3k | 1 | 1.0866137696 | 2997.2 | 21.504 | 65.536 | 278.528 | 0 | 0 | 0 | 8.8 | 3.6965429999999997 | 6.478842986309237 | 293.6073668757507 | 1613.46484375 | 0.5934314835787089 | 0.8404966571155683 | 0.2659675881792183 | 1.1750166039644028 | 0.3420020589428706 | client |
| 34 | 3proxy-devel-g6000,2,2 | mix-http-3k | 1 | 1.0969290232 | 3016.5 | 23.552 | 90.112 | 344.064 | 0 | 0 | 0 | 8.92 | 3.725635 | 6.505434580609974 | 295.70694513509034 | 1641.609375 | 0.6056038647342995 | 0.8702439024390244 | 0.2573099415204678 | 1.192446830567857 | 0.3304761304227698 | client |
| 35 | 3proxy-devel-g6000,3,2 | mix-http-3k | 1 | 1.0914065144 | 2999 | 22.528 | 73.728 | 311.296 | 0 | 0 | 0 | 8.62 | 3.543106 | 6.3184522989502865 | 287.42914304768254 | 1590.76171875 | 0.6181711376542001 | 0.8484251968503937 | 0.25603151157065485 | 1.1960261769784752 | 0.32907332940817274 | client |
| 36 | 3proxy-devel-g8000,2,3 | mix-http-3k | 1 | 1.0935852704000002 | 3009 | 23.552 | 77.824 | 294.912 | 0 | 0 | 0 | 8.81 | 3.680334 | 6.444856373588552 | 292.7883017613825 | 1611.9765625 | 0.6215686274509804 | 0.874875868917577 | 0.26104218362282877 | 1.1908478277435632 | 0.33693656909145114 | client |
| 37 | nginx-halfclose | mix-http-3k | 1 | 1.0910863687999999 | 2995.1 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.87 | 3.3574930000000003 | 5.770395616732409 | 262.76251210310176 | 158.2109375 | 0.6063891577928364 | 0.7663096397273612 | 0.1607843137254902 | 1.2068615008924526 | 0.23720036689198237 | client |
| 38 | 3proxy-devel-g8000,2,2 | relay-stream16 | 2 | 0.2792809547924826 | nan | nan | nan | nan | 0 | 0 | 1235 | 2.32 | 0.935889 | 6.636743649231345 | nan | 3.8359375 | 0.059248006076718575 | 0.21804511278195488 | 0.0624699663623258 | 0.009505222836562197 | 0.07120575691054921 | none |
| 39 | 3proxy-devel-g6000,2,2 | relay-stream16 | 2 | 0.281195885234329 | nan | nan | nan | nan | 0 | 0 | 1251 | 2.66 | 1.077185 | 7.558357338221602 | nan | 3.4453125 | 0.06327189815694471 | 0.2485981308411215 | 0.06904876871076775 | 0.00855469667553809 | 0.08073003337206391 | none |
| 40 | 3proxy-devel-g6000,3,2 | relay-stream16 | 2 | 0.28150770882871823 | nan | nan | nan | nan | 0 | 0 | 1169 | 2.65 | 1.084778 | 7.521538507370722 | nan | 3.51953125 | 0.05625 | 0.22668947818648416 | 0.06461538461538462 | 0.00867916204356483 | 0.07285815815908553 | none |
| 41 | 3proxy-devel-g8000,2,3 | relay-stream16 | 2 | 0.27248099919745583 | nan | nan | nan | nan | 0 | 0 | 1219 | 2.18 | 0.835916 | 6.392036924721369 | nan | 3.69921875 | 0.0556822500950209 | 0.2039289055191768 | 0.057498802108289414 | 0.008553635572061263 | 0.06647557587952395 | none |
| 42 | nginx-halfclose | relay-stream16 | 2 | 0.2941777175196767 | nan | nan | nan | nan | 0 | 0 | 1252 | 3.45 | 1.448675 | 9.370384881741723 | nan | 31.24609375 | 0.07653592502603263 | 0.2948717948717949 | 0.10663716814159292 | 0.009547380319315969 | 0.1196864645873802 | none |
| 43 | 3proxy-devel | relay-stream16 | 2 | 0.2939614524209562 | nan | nan | nan | nan | 0 | 0 | 1244 | 3.78 | 1.688142 | 10.273997623129675 | nan | 3.546875 | 0.08365019011406843 | 0.35261194029850745 | 0.12106537530266344 | 0.010456232312873376 | 0.1348773702852685 | none |
| 44 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 2 | 1.089004324 | 2996.2 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.62 | 2.3426530000000003 | 5.597773916644246 | 254.32214137908016 | 1358.35546875 | 0.6100702576112412 | 0.7477919528949951 | 0.21936758893280633 | 1.1969938535706852 | 0.28065108879291467 | client |
| 45 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 2 | 1.0889223416 | 2997.3 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 8.03 | 2.6068909999999996 | 5.899410595764747 | 267.9077836719714 | 1368.4609375 | 0.5998125585754451 | 0.7539906103286385 | 0.22375296912114015 | 1.183376750635691 | 0.2856031014543423 | client |
| 46 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 2 | 1.0872311456 | 2997.2 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.18 | 2.1592010000000004 | 5.283145192488128 | 239.55691979180568 | 1333.31640625 | 0.6077896786757546 | 0.703921568627451 | 0.21604330708661418 | 1.1904575610888086 | 0.27635294039591973 | client |
| 47 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 2 | 1.0847882312000001 | 2994.8 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.75 | 2.4450039999999995 | 5.7154012383979484 | 258.78188860691864 | 1373.1875 | 0.5991338730935793 | 0.7304429783223374 | 0.22821969696969696 | 1.185396573315152 | 0.28463055192033593 | client |
| 48 | nginx-halfclose | mix-relay-3k | 2 | 1.0876469847999999 | 2995.8 | 20.48 | 61.44 | 262.144 | 0 | 0 | 0 | 7.28 | 2.21533 | 5.354678568865739 | 243.00687629347755 | 593.25390625 | 0.5906443734736051 | 0.6835680751173709 | 0.23145961265942372 | 1.1743355727094833 | 0.2882132473290592 | client |
| 49 | 3proxy-devel | mix-relay-3k | 2 | 1.0872591327999999 | 2996.2 | 20.48 | 63.488 | 294.912 | 0 | 0 | 0 | 7.5 | 2.388762 | 5.5184636477122995 | 250.31706828649624 | 1358.12109375 | 0.5870955605718585 | 0.7102272727272727 | 0.22180094786729856 | 1.1746258508241227 | 0.27745902226875413 | client |
| 50 | 3proxy-devel-g8000,2,2 | mix-http-3k | 2 | 1.094109776 | 3010.1 | 23.552 | 86.016 | 311.296 | 0 | 0 | 0 | 8.99 | 3.7463330000000004 | 6.573380622092166 | 298.66117404737383 | 1591.06640625 | 0.6250245531329798 | 0.8848425196850394 | 0.2563338301043219 | 1.191254292548232 | 0.33576137323084765 | client |
| 51 | 3proxy-devel-g6000,2,2 | mix-http-3k | 2 | 1.099231916 | 3021.4 | 25.6 | 122.88 | 442.368 | 0 | 0 | 0 | 9.23 | 3.920255 | 6.717417764642126 | 305.4875223406368 | 1615.73828125 | 0.6432463993771895 | 0.906679764243615 | 0.2811422944362383 | 1.1938556843285826 | 0.36034456622595834 | client |
| 52 | 3proxy-devel-g6000,3,2 | mix-http-3k | 2 | 1.0976915704 | 3020.9 | 24.576 | 98.304 | 393.216 | 0 | 0 | 0 | 9.24 | 3.9141869999999996 | 6.734132063441416 | 305.8691118540832 | 1624.94140625 | 0.6228691821490135 | 0.8953488372093024 | 0.27643064985451016 | 1.1865146235986122 | 0.3558860611790491 | client |
| 53 | 3proxy-devel-g8000,2,3 | mix-http-3k | 2 | 1.11140424 | 3058.7 | 36.864 | 376.832 | 1310.72 | 0 | 0 | 0 | 9.69 | 4.294793 | 6.974959893980609 | 316.8012554353157 | 1646.0 | 0.6235294117647059 | 0.9219790675547098 | 0.27842003853564545 | 1.180829283860351 | 0.35893295512498335 | client |
| 54 | nginx-halfclose | mix-http-3k | 2 | 1.0887614992 | 2995.6 | 21.504 | 65.536 | 278.528 | 0 | 0 | 0 | 8.38 | 3.5837869999999996 | 6.157455057811986 | 279.7436239818401 | 155.6015625 | 0.6046686746987951 | 0.7958214624881291 | 0.17515468824369348 | 1.1877234885470536 | 0.25124551062484624 | client |
| 55 | 3proxy-devel | mix-http-3k | 2 | 1.1087529272 | 3047.4 | 23.552 | 118.784 | 442.368 | 0 | 0 | 0 | 9.03 | 3.8707160000000003 | 6.515428119989905 | 296.31817286867494 | 1619.85546875 | 0.6190476190476191 | 0.8674351585014409 | 0.2796005706134094 | 1.1810830854872734 | 0.3547660975685472 | client |