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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>
4.8 KiB
4.8 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 | 1.0891735736 | 2994.9 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 7.91 | 2.608539 | 5.8099095987835305 | 264.11566329426694 | 1394.265625 | 0.6063357156654433 | 0.7533333333333333 | 0.22641509433962265 | 1.2162010766926186 | 0.2733318003914116 | client |
| 3 | 3proxy-devel-s | mix-connect-3k | 0 | 1.0862082104000002 | 2995.4 | 20.48 | 65.536 | 278.528 | 0 | 0 | 0 | 8.55 | 2.798914 | 6.297135240287998 | 285.43767109568006 | 1389.71875 | 0.6004152510381275 | 0.8020637898686679 | 0.23263558515699334 | 1.1958041318973958 | 0.2855510191775506 | client |
| 4 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 0 | 1.0886691472 | 2995.3 | 20.48 | 65.536 | 278.528 | 0 | 0 | 0 | 9.01 | 3.1604059999999996 | 6.620927963779076 | 300.80459386371984 | 1377.05078125 | 0.6082673362951516 | 0.8671799807507219 | 0.206511175898931 | 1.2052105449658954 | 0.2490093789707616 | client |
| 5 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 0 | 1.0876640136 | 2995.4 | 20.48 | 65.536 | 278.528 | 0 | 0 | 0 | 7.82 | 2.4607849999999996 | 5.751776211932953 | 261.06696935300795 | 1405.39453125 | 0.6010120669521214 | 0.7540983606557377 | 0.22561863173216884 | 1.2100443073856029 | 0.2776905432334459 | client |
| 6 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 0 | 1.0861627632000002 | 2994.6 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.66 | 2.5793799999999996 | 5.641880027212482 | 255.79376210512257 | 1381.515625 | 0.6009551098376313 | 0.7295238095238096 | 0.2334128878281623 | 1.2044517595506683 | 0.27418175072469186 | client |
| 7 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 0 | 1.0881551872000002 | 2995.8 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.45 | 2.2813960000000004 | 5.477159940151596 | 248.68148741571534 | 1403.6875 | 0.6096225308038333 | 0.7247081712062257 | 0.22211350293542073 | 1.212632560019261 | 0.27056687437991234 | client |
| 8 | 3proxy-devel-s | mix-connect-3k | 1 | 1.0853630104 | 2995.9 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 7.53 | 2.285549 | 5.550216786713519 | 251.34350278714243 | 1372.13671875 | 0.6161302830554478 | 0.7226487523992322 | 0.2266990291262136 | 1.2172169963112742 | 0.277252026226107 | client |
| 9 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 1 | 1.0859976055999998 | 2995.4 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 7.69 | 2.5436669999999997 | 5.664837535807546 | 256.7269813714362 | 1378.625 | 0.6117693522906793 | 0.753921568627451 | 0.21764997521070897 | 1.1987812436117748 | 0.26503288269175057 | client |
| 10 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 1 | 1.089052316 | 2996.2 | 20.48 | 65.536 | 262.144 | 0 | 0 | 0 | 8.07 | 2.63279 | 5.928089867814945 | 269.34116547626996 | 1402.78515625 | 0.5957970465732677 | 0.7591721542803387 | 0.23193916349809887 | 1.1970979941769477 | 0.28893728957590054 | client |
| 11 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 1 | 1.087126004 | 2996.2 | 20.48 | 65.536 | 262.144 | 0 | 0 | 0 | 8.09 | 2.691823 | 5.953311737725667 | 270.0086776583673 | 1365.62109375 | 0.6350136772176631 | 0.7877312560856865 | 0.2399014778325123 | 1.218369975624251 | 0.29168228205078417 | client |
| 12 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 1 | 1.0870633208 | 2994.5 | 20.48 | 65.536 | 278.528 | 0 | 0 | 0 | 8.03 | 2.50894 | 5.90949936133656 | 268.15829019869756 | 1388.98828125 | 0.6331326471159449 | 0.7796116504854369 | 0.23595505617977527 | 1.2199366706034516 | 0.28985429148294767 | client |
| 13 | 3proxy-devel-s0 | mix-connect-3k | 1 | 1.0872166528 | 2994.6 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.51 | 2.4359900000000003 | 5.526037505521181 | 250.78474587590998 | 1378.01171875 | 0.6183235867446394 | 0.7298347910592808 | 0.23114593535749264 | 1.2151200320929867 | 0.2817198325953915 | client |
| 14 | 3proxy-devel-s0-g8000,2,2 | mix-connect-3k | 2 | 1.0914809375999999 | 2995.8 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.51 | 2.4974829999999995 | 5.504447941354501 | 250.68429134121104 | 1388.51953125 | 0.6046694133804199 | 0.7284190106692532 | 0.22531769305962854 | 1.212743575670677 | 0.27956225989947514 | client |
| 15 | 3proxy-devel-s-g8000,2,2 | mix-connect-3k | 2 | 1.088825528 | 2995.7 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.12 | 2.142234 | 5.231324811480724 | 237.67399939913878 | 1396.6484375 | 0.607325718786924 | 0.6966731898238747 | 0.2231527093596059 | 1.2110581740303068 | 0.2683119418425006 | client |
| 16 | 3proxy-devel-s0-g6000,3,2 | mix-connect-3k | 2 | 1.0860821208 | 2992.7 | 20.48 | 65.536 | 262.144 | 0 | 0 | 0 | 8.25 | 2.773329 | 6.076888546087554 | 275.6707989440973 | 1388.43359375 | 0.6092219020172911 | 0.786463298379409 | 0.22420443587270975 | 1.2101382769686528 | 0.27021588781567235 | client |
| 17 | 3proxy-devel-s-g6000,3,2 | mix-connect-3k | 2 | 1.0852826952 | 2995.2 | 20.48 | 63.488 | 278.528 | 0 | 0 | 0 | 7.38 | 2.226658 | 5.44005725523154 | 246.39423076923077 | 1399.62890625 | 0.6104402025710947 | 0.7144240077444337 | 0.22840409956076135 | 1.210798319667711 | 0.2792725547415226 | client |
| 18 | 3proxy-devel-s0 | mix-connect-3k | 2 | 1.0870129392 | 2994.7 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 8.56 | 2.953312 | 6.2998330130641005 | 285.83831435536115 | 1379.71484375 | 0.6213444739840486 | 0.8098391674550615 | 0.25131139723414403 | 1.207649766822901 | 0.29565894744929033 | client |
| 19 | 3proxy-devel-s | mix-connect-3k | 2 | 1.0883850344000001 | 2994 | 20.48 | 63.488 | 262.144 | 0 | 0 | 0 | 8.62 | 2.7879410000000004 | 6.335993037428702 | 287.90915163660657 | 1399.5859375 | 0.626044039483675 | 0.818613485280152 | 0.24225083452551263 | 1.2106756863672339 | 0.29195643673725036 | client |