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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>
14 KiB
14 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 | 0.05703093020090198 | nan | nan | nan | nan | 0 | 0 | 486 | 3.47 | 1.335569 | 48.398535691841865 | nan | 30.40625 | 0.007167106752168993 | 0.27983870967741936 | 0.08754512635379061 | 0.009533805018661525 | 0.12623177341917152 | none |
| 3 | 3proxy-devel | relay-stream16 | 0 | 0.0555657139016637 | nan | nan | nan | nan | 0 | 0 | 469 | 3.76 | 1.534382 | 53.82086948874296 | nan | 3.42578125 | 0.013115982761851228 | 0.3042071197411003 | 0.09132007233273057 | 0.011272360722310753 | 0.12985964121128818 | none |
| 4 | 3proxy-devel-g8000,2,2 | relay-stream16 | 0 | 0.055885495122072 | nan | nan | nan | nan | 0 | 0 | 477 | 3.21 | 1.85474 | 45.690963517374065 | nan | 3.3046875 | 0.004457917261055635 | 0.26974789915966385 | 0.062146892655367235 | 0.0074844068314798146 | 0.10050650518740183 | none |
| 5 | 3proxy-devel-g6000,2,2 | relay-stream16 | 0 | 0.057040464175270235 | nan | nan | nan | nan | 0 | 0 | 468 | 3.47 | 2.0747619999999998 | 48.398535691841865 | nan | 3.55078125 | 0.006009389671361502 | 0.30358705161854765 | 0.07482993197278912 | 0.007803904609235489 | 0.1151626077412577 | none |
| 6 | 3proxy-devel-g6000,3,2 | relay-stream16 | 0 | 0.05431374766662133 | nan | nan | nan | nan | 0 | 0 | 487 | 3.36 | 1.995311 | 49.203005038387715 | nan | 3.36328125 | 0.006717671207314798 | 0.294478527607362 | 0.07078039927404718 | 0.009534190575428758 | 0.11162753066607052 | none |
| 7 | 3proxy-devel-g8000,2,3 | relay-stream16 | 0 | 0.05452914158986523 | nan | nan | nan | nan | 0 | 0 | 455 | 3.16 | 1.686683 | 46.09729774139579 | nan | 3.51953125 | 0.007673591615197454 | 0.2740676496097138 | 0.05492510213345438 | 0.009541693365057809 | 0.09355978009204279 | none |
| 8 | nginx-halfclose | mix-relay-3k | 0 | 0.4719324424 | 1844.3 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 7.66 | 3.9087179999999995 | 12.984909384140275 | 415.3337309548338 | 734.7421875 | 0.7997286755977616 | 0.6309719934102141 | 0.24362986142154672 | 1.7582721613387904 | 0.3052247206342257 | client |
| 9 | 3proxy-devel | mix-relay-3k | 0 | 0.4503875768 | 1782.1 | 2228.224 | 4194.304 | 6553.6 | 0 | 0 | 0 | 8.65 | 5.121332 | 15.364544575511035 | 485.382414005948 | 1511.49609375 | 0.7997587454764777 | 0.740582191780822 | 0.26549491211840887 | 1.725259088812659 | 1.0638595299947942 | origin |
| 10 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 0 | 0.4592262712 | 1805.4 | 2359.296 | 4194.304 | 6553.6 | 0 | 0 | 0 | 8.9 | 5.532662999999999 | 15.504339465150355 | 492.96554780104134 | 1515.8984375 | 0.798927150025956 | 0.7712305025996534 | 0.26383763837638374 | 1.7585023716942199 | 0.35023053255464986 | client |
| 11 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 0 | 0.4583686696 | 1801.1 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 8.98 | 5.540913999999999 | 15.672973474101513 | 498.5841985453334 | 1514.84765625 | 0.7876723991145922 | 0.7565290648694187 | 0.25693822739480754 | 1.7147300210119967 | 0.34139169732276353 | client |
| 12 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 0 | 0.46222198239999995 | 1816 | 2359.296 | 4194.304 | 6553.6 | 0 | 0 | 0 | 8.48 | 4.914116999999999 | 14.676930691992117 | 466.9603524229075 | 1518.296875 | 0.7985203028217481 | 0.7278969957081545 | 0.24315693430656934 | 1.5228193711360682 | 0.31506608399341385 | client |
| 13 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 0 | 0.44664186 | 1767.4 | 2228.224 | 4194.304 | 6815.744 | 1 | 0 | 0 | 9.0 | 5.655197999999999 | 16.120298263131897 | 509.2225868507412 | 1507.3984375 | 0.7906500597167719 | 0.7666098807495741 | 0.2729326705829191 | 1.697069723425719 | 0.3499189208236363 | client |
| 14 | nginx-halfclose | mix-http-3k | 0 | 0.4811505992 | 1872.9 | 2097.152 | 3932.16 | 6291.456 | 0 | 0 | 0 | 6.68 | 3.223572 | 11.10670964327046 | 356.6661327353302 | 512.5078125 | 0.7818559556786704 | 0.5689948892674617 | 0.16555109326193662 | 1.7405672832012247 | 0.202746435205527 | client |
| 15 | 3proxy-devel | mix-http-3k | 0 | 0.43334420960000003 | 1757.7 | 2490.368 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.23 | 6.351656 | 17.039572322463545 | 525.1180519997724 | 1747.66015625 | 0.7917174177831913 | 0.8075240594925635 | 0.2632816173013634 | 1.6683908052474625 | 0.3731287339236415 | client |
| 16 | 3proxy-devel-g8000,2,2 | mix-http-3k | 0 | 0.43303475280000003 | 1772.2 | 2621.44 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.47 | 6.665590000000001 | 17.49513162861325 | 534.3640672610314 | 1742.515625 | 0.7778729234457955 | 0.8184961106309421 | 0.2620147874306839 | 1.604475464104604 | 0.36775994810435625 | client |
| 17 | 3proxy-devel-g6000,2,2 | mix-http-3k | 0 | 0.4336000528 | 1742.6 | 2490.368 | 4456.448 | 6815.744 | 0 | 0 | 0 | 8.98 | 6.060468 | 16.568263665119186 | 515.3219327441753 | 1745.7265625 | 0.796916067986683 | 0.8017857142857143 | 0.25780124819971195 | 1.5601100774147179 | 0.35998147919519613 | client |
| 18 | 3proxy-devel-g6000,3,2 | mix-http-3k | 0 | 0.44136528160000005 | 1737.5 | 2621.44 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.63 | 6.752083000000001 | 17.454929785306433 | 554.2446043165468 | 1727.99609375 | 0.7759877904018992 | 0.823076923076923 | 0.2554372975474317 | 1.6391448254779946 | 0.36287504671670595 | client |
| 19 | 3proxy-devel-g8000,2,3 | mix-http-3k | 0 | 0.449065888 | 1754.2 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 8.95 | 5.824742 | 15.944208169292075 | 510.2040816326531 | 1724.109375 | 0.795015795015795 | 0.7927369353410098 | 0.2386634844868735 | 1.684249843187334 | 0.3258226956770366 | client |
| 20 | 3proxy-devel | relay-stream16 | 1 | 0.053276501070954226 | nan | nan | nan | nan | 0 | 0 | 472 | 3.55 | 1.509908 | 53.00264302531801 | nan | 3.24609375 | 0.006749156355455568 | 0.29170090386195563 | 0.08669995460735361 | 0.011264911233326234 | 0.1289245304862818 | none |
| 21 | 3proxy-devel-g8000,2,2 | relay-stream16 | 1 | 0.05337823406207005 | nan | nan | nan | nan | 0 | 0 | 485 | 3.19 | 1.9078750000000002 | 47.534704208374016 | nan | 3.21875 | 0.005402384500745157 | 0.2815533980582524 | 0.06596906278434941 | 0.00867333718028822 | 0.10651276727040283 | none |
| 22 | 3proxy-devel-g6000,2,2 | relay-stream16 | 1 | 0.050879498420832205 | nan | nan | nan | nan | 0 | 0 | 480 | 3.39 | 2.0210950000000003 | 52.99927758388832 | nan | 2.89453125 | 0.005407421219466716 | 0.2971078001752848 | 0.07220708446866485 | 0.011264754142795378 | 0.11506973865334792 | none |
| 23 | 3proxy-devel-g6000,3,2 | relay-stream16 | 1 | 0.05338578715587098 | nan | nan | nan | nan | 0 | 0 | 459 | 3.49 | 2.011426 | 52.00505256652832 | nan | 3.2109375 | 0.010790697674418604 | 0.3029513888888889 | 0.07168784029038112 | 0.009532927042793075 | 0.1107963332330836 | none |
| 24 | 3proxy-devel-g8000,2,3 | relay-stream16 | 1 | 0.04941089903823595 | nan | nan | nan | nan | 0 | 0 | 478 | 3.13 | 1.640473 | 50.37975713673523 | nan | 3.4375 | 0.008007448789571695 | 0.27076124567474047 | 0.05289330922242315 | 0.01213929197970895 | 0.08910734108834828 | none |
| 25 | nginx-halfclose | relay-stream16 | 1 | 0.0514001812411619 | nan | nan | nan | nan | 0 | 0 | 489 | 3.5 | 1.360598 | 54.16405853828601 | nan | 29.859375 | 0.006017299736743136 | 0.2847843775427177 | 0.09103260869565218 | 0.010398962245234542 | 0.13068635894324007 | none |
| 26 | 3proxy-devel | mix-relay-3k | 1 | 0.4739402952 | 1841.9 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.22 | 4.660630000000001 | 13.875165430331194 | 446.2782995819535 | 1515.3046875 | 0.8053515215110179 | 0.7141615986099045 | 0.2553688141923436 | 1.7535052073633526 | 0.33946595737980134 | client |
| 27 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 1 | 0.465420064 | 1819.9 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.85 | 5.230697999999999 | 15.212064428747961 | 486.290455519534 | 1508.58203125 | 0.7917928018836192 | 0.7399665551839465 | 0.24498886414253898 | 1.705222885977518 | 0.3039357313633423 | client |
| 28 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 1 | 0.4511366712 | 1774.2 | 2359.296 | 4194.304 | 6815.744 | 0 | 0 | 0 | 9.11 | 5.719893 | 16.154749691738203 | 513.4708601059632 | 1505.73828125 | 0.7945417095777549 | 0.7733446519524618 | 0.2644778841769266 | 1.7299219470111171 | 0.3539041817569654 | client |
| 29 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 1 | 0.4714307728 | 1839.2 | 2228.224 | 4063.232 | 6553.6 | 1 | 0 | 0 | 8.51 | 4.843762999999999 | 14.44114468719298 | 462.70117442366245 | 1505.91796875 | 0.7872736503638518 | 0.7163299663299664 | 0.24536827835517397 | 1.6772431817998261 | 0.311880517000966 | client |
| 30 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 1 | 0.47095256160000004 | 1830 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.73 | 5.132434 | 14.82951908419984 | 477.04918032786884 | 1511.92578125 | 0.7875464056699292 | 0.7287145242070117 | 0.2554420257663261 | 1.7198233623243895 | 0.3242229855747101 | client |
| 31 | nginx-halfclose | mix-relay-3k | 1 | 0.47246192719999996 | 1844.1 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 7.11 | 3.523564 | 12.039065314128871 | 385.55392874572965 | 730.09765625 | 0.7817965698760401 | 0.5925 | 0.21894548704200179 | 1.7702068288260284 | 0.2750502628239082 | client |
| 32 | 3proxy-devel | mix-http-3k | 1 | 0.4344900904 | 1754.2 | 2621.44 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.3 | 6.368164 | 17.123520569020556 | 530.156196556835 | 1729.09375 | 0.7904436860068259 | 0.7948717948717948 | 0.25615992561599255 | 1.5261438465940287 | 0.3607308501205526 | client |
| 33 | 3proxy-devel-g8000,2,2 | mix-http-3k | 1 | 0.43851092160000005 | 1715.9 | 2490.368 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.67 | 6.763568999999999 | 17.64152183889415 | 563.5526545836004 | 1724.6875 | 0.7845970758245495 | 0.8222789115646258 | 0.2562097516099356 | 1.7176824093289471 | 0.3519277194070065 | client |
| 34 | 3proxy-devel-g6000,2,2 | mix-http-3k | 1 | 0.4522646616 | 1764.3 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 8.84 | 5.688057 | 15.636861776865388 | 501.0485745054696 | 1725.4609375 | 0.7998613758447409 | 0.7740805604203153 | 0.23897581792318634 | 1.6726528969304135 | 0.3301457082384228 | client |
| 35 | 3proxy-devel-g6000,3,2 | mix-http-3k | 1 | 0.4543889008 | 1766.6 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 8.79 | 5.625592 | 15.47573012373193 | 497.56594588475036 | 1723.9375 | 0.7908260044835317 | 0.7670157068062827 | 0.24170616113744076 | 1.6795043595577417 | 0.33351269201168754 | client |
| 36 | 3proxy-devel-g8000,2,3 | mix-http-3k | 1 | 0.45329466 | 1768.1 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 8.9 | 5.702763999999999 | 15.707222317598006 | 503.3651942763418 | 1720.0390625 | 0.7881141313523552 | 0.7632933104631218 | 0.23763291724456773 | 1.6554120964283294 | 0.3219479367370445 | client |
| 37 | nginx-halfclose | mix-http-3k | 1 | 0.4916115056 | 1892.2 | 2097.152 | 3801.088 | 6291.456 | 0 | 0 | 0 | 6.59 | 3.0872970000000004 | 10.723915001878671 | 348.2718528696755 | 504.8984375 | 0.8026455026455026 | 0.5705627705627706 | 0.1663594470046083 | 1.8039377663835325 | 0.20430210470216362 | client |
| 38 | 3proxy-devel-g8000,2,2 | relay-stream16 | 2 | 0.05253748170322178 | nan | nan | nan | nan | 0 | 0 | 493 | 3.26 | 1.96776 | 49.34886145213294 | nan | 3.265625 | 0.0072801941385103605 | 0.28773168578993824 | 0.06781975421028676 | 0.008672854563875742 | 0.10912891887635864 | none |
| 39 | 3proxy-devel-g6000,2,2 | relay-stream16 | 2 | 0.052337355588472814 | nan | nan | nan | nan | 0 | 0 | 488 | 3.34 | 1.989852 | 50.76131022783864 | nan | 3.26171875 | 0.006533507560201606 | 0.29401408450704225 | 0.0684931506849315 | 0.008672324662347125 | 0.11172101607205281 | none |
| 40 | 3proxy-devel-g6000,3,2 | relay-stream16 | 2 | 0.05598779392494218 | nan | nan | nan | nan | 0 | 0 | 463 | 3.28 | 1.974515 | 46.60039862662942 | nan | 3.2734375 | 0.006716417910447761 | 0.2887323943661972 | 0.06909090909090909 | 0.008675047125525474 | 0.10831267914971836 | none |
| 41 | 3proxy-devel-g8000,2,3 | relay-stream16 | 2 | 0.05131017049537397 | nan | nan | nan | nan | 0 | 0 | 484 | 3.01 | 1.647619 | 46.67576735581809 | nan | 3.3984375 | 0.005983545250560957 | 0.26403508771929823 | 0.05011389521640091 | 0.008669818415401874 | 0.09177522178839059 | none |
| 42 | nginx-halfclose | relay-stream16 | 2 | 0.05557183010754997 | nan | nan | nan | nan | 0 | 0 | 461 | 3.49 | 1.438989 | 49.95607300949813 | nan | 29.9296875 | 0.009537434430138292 | 0.2449122807017544 | 0.07517347725520432 | 0.010335863038864964 | 0.11649088069984385 | none |
| 43 | 3proxy-devel | relay-stream16 | 2 | 0.05109244579903693 | nan | nan | nan | nan | 0 | 0 | 508 | 3.55 | 1.520096 | 55.2741848692602 | nan | 3.33203125 | 0.00765068109721963 | 0.2905073649754501 | 0.09290843806104129 | 0.011261242974986495 | 0.12630610462278427 | none |
| 44 | 3proxy-devel-g8000,2,2 | mix-relay-3k | 2 | 0.4776091784 | 1861.9 | 2228.224 | 3932.16 | 6553.6 | 0 | 0 | 0 | 8.36 | 4.686685 | 14.003080975966435 | 449.00370589183086 | 1512.83203125 | 0.8011068834313386 | 0.7200689061154177 | 0.26509912402028585 | 1.7383866059895328 | 0.3310498606431554 | client |
| 45 | 3proxy-devel-g6000,2,2 | mix-relay-3k | 2 | 0.4723502864 | 1844 | 2228.224 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.25 | 4.688426 | 13.972681270718924 | 447.39696312364424 | 1507.49609375 | 0.8067388268156425 | 0.7205240174672489 | 0.24906890130353818 | 1.7580613553019624 | 0.3000241390723102 | client |
| 46 | 3proxy-devel-g6000,3,2 | mix-relay-3k | 2 | 0.4677520328 | 1825.6 | 2359.296 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.25 | 4.575558 | 14.110040228990322 | 451.90622261174406 | 1505.125 | 0.7991349480968858 | 0.7118205349439172 | 0.26137418755803155 | 1.7401090762406362 | 0.3310631895442816 | client |
| 47 | 3proxy-devel-g8000,2,3 | mix-relay-3k | 2 | 0.45396421039999996 | 1778.9 | 2228.224 | 4194.304 | 6553.6 | 0 | 0 | 0 | 8.99 | 5.514569 | 15.842658595625712 | 505.36848614312214 | 1509.8359375 | 0.788948969246367 | 0.7592905405405406 | 0.25965858041329737 | 1.737555872676357 | 0.32088868514465446 | client |
| 48 | nginx-halfclose | mix-relay-3k | 2 | 0.4623164648 | 1808.7 | 2228.224 | 4194.304 | 6553.6 | 0 | 0 | 0 | 7.4 | 3.7135330000000004 | 12.805081477167413 | 409.133631890308 | 724.11328125 | 0.7973598491342362 | 0.6187290969899666 | 0.2419210053859964 | 1.7571483135176569 | 0.2939785588059205 | client |
| 49 | 3proxy-devel | mix-relay-3k | 2 | 0.46856167919999997 | 1827.8 | 2359.296 | 4063.232 | 6553.6 | 0 | 0 | 0 | 8.3 | 4.65726 | 14.171026557990874 | 454.0978225188752 | 1498.3046875 | 0.7954897572731968 | 0.7075873827791986 | 0.2746090156393744 | 1.7304407765418761 | 0.33317398907088785 | client |
| 50 | 3proxy-devel-g8000,2,2 | mix-http-3k | 2 | 0.4415248 | 1733.2 | 2490.368 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.26 | 6.285683000000001 | 16.7782194794041 | 534.2718670666974 | 1722.51171875 | 0.7965985225906201 | 0.8038194444444444 | 0.2532588454376164 | 1.6858165054303804 | 0.3307151057723432 | client |
| 51 | 3proxy-devel-g6000,2,2 | mix-http-3k | 2 | 0.449704432 | 1757.3 | 2490.368 | 4194.304 | 6815.744 | 0 | 0 | 0 | 9.31 | 6.305945000000001 | 16.561989320131943 | 529.7900187788084 | 1723.30859375 | 0.7855813166356406 | 0.7984562607204116 | 0.25528978840846367 | 1.6396540242043822 | 0.3410968458665888 | client |
| 52 | 3proxy-devel-g6000,3,2 | mix-http-3k | 2 | 0.42161403680000004 | 1683.9 | 2621.44 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.58 | 6.754039000000001 | 18.17776290886528 | 568.9173941445454 | 1714.76953125 | 0.7870054570259208 | 0.8216123499142367 | 0.26620689655172414 | 1.5053156350222339 | 0.3659364307021147 | client |
| 53 | 3proxy-devel-g8000,2,3 | mix-http-3k | 2 | 0.41769817119999997 | 1686.8 | 2883.584 | 4718.592 | 7077.888 | 0 | 0 | 0 | 10.16 | 7.614438 | 19.459027020992618 | 602.3239269622954 | 1724.45703125 | 0.7838342672779759 | 0.8639455782312925 | 0.2808375056895767 | 1.6374951002706968 | 0.3910351098245771 | client |
| 54 | nginx-halfclose | mix-http-3k | 2 | 0.49053967039999996 | 1890.5 | 2228.224 | 3932.16 | 6291.456 | 0 | 0 | 0 | 6.66 | 3.053357 | 10.861506869883526 | 352.2877545622851 | 507.65234375 | 0.7843581257620623 | 0.5672913117546848 | 0.16606822262118492 | 1.738276354942273 | 0.19893703673460997 | client |
| 55 | 3proxy-devel | mix-http-3k | 2 | 0.4364623168 | 1710 | 2621.44 | 4456.448 | 6815.744 | 0 | 0 | 0 | 9.01 | 5.965438000000001 | 16.514598677949373 | 526.9005847953216 | 1719.03125 | 0.7946872322193659 | 0.7855274629468177 | 0.2590529247910863 | 1.676436042827262 | 0.3614701117343257 | client |