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connect errors are slow on windows
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| # 1s delay connecting to something that isn't listening: | |
| richard@tsais MINGW64 ~/src/gosrc (master) | |
| $ time plink -v -P 3000 wampoon | |
| Connecting to 172.17.207.76 port 3000 | |
| We claim version: SSH-2.0-PuTTY_Release_0.70 | |
| Failed to connect to 172.17.207.76: Network error: Connection refused | |
| Network error: Connection refused | |
| FATAL ERROR: Network error: Connection refused | |
| real 0m1.085s | |
| user 0m0.000s | |
| sys 0m0.015s | |
| # tcpdump looks like this: | |
| 21:58:06.409777 IP tsais.anjou.terraraq.org.uk.55984 > wampoon.anjou.terraraq.org.uk.3000: Flags [S], seq 1126833571, win 64240, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 | |
| 21:58:06.409813 IP wampoon.anjou.terraraq.org.uk.3000 > tsais.anjou.terraraq.org.uk.55984: Flags [R.], seq 0, ack 1126833572, win 0, length 0 | |
| 21:58:06.912167 IP tsais.anjou.terraraq.org.uk.55984 > wampoon.anjou.terraraq.org.uk.3000: Flags [S], seq 1126833571, win 64240, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 | |
| 21:58:06.912221 IP wampoon.anjou.terraraq.org.uk.3000 > tsais.anjou.terraraq.org.uk.55984: Flags [R.], seq 0, ack 1, win 0, length 0 | |
| 21:58:07.411944 IP tsais.anjou.terraraq.org.uk.55984 > wampoon.anjou.terraraq.org.uk.3000: Flags [S], seq 1126833571, win 64240, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 | |
| 21:58:07.411992 IP wampoon.anjou.terraraq.org.uk.3000 > tsais.anjou.terraraq.org.uk.55984: Flags [R.], seq 0, ack 1, win 0, length 0 | |
| # 2s delay trying to connect to both loopback addresses when nothing is listening. | |
| # Windows apparently doesn't believe its own RST bits never mind anyone else's. | |
| richard@tsais MINGW64 ~/src/gosrc (master) | |
| $ time plink -v -P 3000 localhost | |
| Connecting to ::1 port 3000 | |
| We claim version: SSH-2.0-PuTTY_Release_0.70 | |
| Failed to connect to ::1: Network error: Connection refused | |
| Connecting to 127.0.0.1 port 3000 | |
| Failed to connect to 127.0.0.1: Network error: Connection refused | |
| Network error: Connection refused | |
| FATAL ERROR: Network error: Connection refused | |
| real 0m2.075s | |
| user 0m0.000s | |
| sys 0m0.031s |
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