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run go1.19 gofmt and make adjustments as needed

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(Go 1.19 expanded doc comment syntax)
This commit is contained in:
Christian Schwarz
2022-10-24 22:09:02 +02:00
parent 6c87bdb9fb
commit a6aa610165
16 changed files with 165 additions and 177 deletions
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rpc/dataconn/heartbeatconn/integration_test_variablereceiverate/heartbeatconn_integration_variablereceiverate.go
+20 -24
View File
@@ -6,12 +6,12 @@
// In commit 082335df5d85e1b0b9faa35ff182c71886142d3e and earlier, heartbeatconn would fail
// this benchmark with a writev I/O timeout (here the ss(8) output at the time of failure)
//
// ESTAB 33369 0 127.0.0.1:12345 127.0.0.1:57282 users:(("heartbeatconn_i",pid=25953,fd=5))
// cubic wscale:7,7 rto:203 rtt:2.992/5.849 ato:162 mss:32768 pmtu:65535 rcvmss:32741 advmss:65483 cwnd:10 bytes_sent:48 bytes_acked:48 bytes_received:195401 segs_out:44 segs_in:57 data_segs_out:6 data_segs_in:34 send 876.1Mbps lastsnd:125 lastrcv:9390 lastack:125 pacing_rate 1752.0Mbps delivery_rate 6393.8Mbps delivered:7 app_limited busy:42ms rcv_rtt:1 rcv_space:65483 rcv_ssthresh:65483 minrtt:0.029
// --
// ESTAB 0 3956805 127.0.0.1:57282 127.0.0.1:12345 users:(("heartbeatconn_i",pid=26100,fd=3))
// cubic wscale:7,7 rto:211 backoff:5 rtt:10.38/16.937 ato:40 mss:32768 pmtu:65535 rcvmss:536 advmss:65483 cwnd:10 bytes_sent:195401 bytes_acked:195402 bytes_received:48 segs_out:57 segs_in:45 data_segs_out:34 data_segs_in:6 send 252.5Mbps lastsnd:9390 lastrcv:125 lastack:125 pacing_rate 505.1Mbps delivery_rate 1971.0Mbps delivered:35 busy:30127ms rwnd_limited:30086ms(99.9%) rcv_space:65495 rcv_ssthresh:65495 notsent:3956805 minrtt:0.007
// panic: writev tcp 127.0.0.1:57282->127.0.0.1:12345: i/o timeout
// ESTAB 33369 0 127.0.0.1:12345 127.0.0.1:57282 users:(("heartbeatconn_i",pid=25953,fd=5))
// cubic wscale:7,7 rto:203 rtt:2.992/5.849 ato:162 mss:32768 pmtu:65535 rcvmss:32741 advmss:65483 cwnd:10 bytes_sent:48 bytes_acked:48 bytes_received:195401 segs_out:44 segs_in:57 data_segs_out:6 data_segs_in:34 send 876.1Mbps lastsnd:125 lastrcv:9390 lastack:125 pacing_rate 1752.0Mbps delivery_rate 6393.8Mbps delivered:7 app_limited busy:42ms rcv_rtt:1 rcv_space:65483 rcv_ssthresh:65483 minrtt:0.029
// --
// ESTAB 0 3956805 127.0.0.1:57282 127.0.0.1:12345 users:(("heartbeatconn_i",pid=26100,fd=3))
// cubic wscale:7,7 rto:211 backoff:5 rtt:10.38/16.937 ato:40 mss:32768 pmtu:65535 rcvmss:536 advmss:65483 cwnd:10 bytes_sent:195401 bytes_acked:195402 bytes_received:48 segs_out:57 segs_in:45 data_segs_out:34 data_segs_in:6 send 252.5Mbps lastsnd:9390 lastrcv:125 lastack:125 pacing_rate 505.1Mbps delivery_rate 1971.0Mbps delivered:35 busy:30127ms rwnd_limited:30086ms(99.9%) rcv_space:65495 rcv_ssthresh:65495 notsent:3956805 minrtt:0.007
// panic: writev tcp 127.0.0.1:57282->127.0.0.1:12345: i/o timeout
//
// The assumed reason for those writev timeouts is the following:
// - Sporadic server stalls (sever data handling, usually I/O) cause TCP exponential backoff on the client for client->server
@@ -22,27 +22,23 @@
// The fix contained in the commit this message was committed with resets the deadline whenever
// a heartbeat is received from the server.
//
//
// How to run this integration test:
//
// Terminal 1:
// $ ZREPL_RPC_DATACONN_HEARTBEATCONN_DEBUG=1 go run heartbeatconn_integration_variablereceiverate.go -mode server -addr 127.0.0.1:12345
// rpc/dataconn/heartbeatconn: send heartbeat
// rpc/dataconn/heartbeatconn: send heartbeat
// ...
//
// Terminal 1:
// $ ZREPL_RPC_DATACONN_HEARTBEATCONN_DEBUG=1 go run heartbeatconn_integration_variablereceiverate.go -mode server -addr 127.0.0.1:12345
// rpc/dataconn/heartbeatconn: send heartbeat
// rpc/dataconn/heartbeatconn: send heartbeat
// ...
//
// Terminal 2:
// $ ZREPL_RPC_DATACONN_HEARTBEATCONN_DEBUG=1 go run heartbeatconn_integration_variablereceiverate.go -mode client -addr 127.0.0.1:12345
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// rpc/dataconn/heartbeatconn: renew frameconn write timeout returned errT=<nil> err=%!s(<nil>)
// rpc/dataconn/heartbeatconn: send heartbeat
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// rpc/dataconn/heartbeatconn: renew frameconn write timeout returned errT=<nil> err=%!s(<nil>)
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// ...
//
// You should observe
// Terminal 2:
// $ ZREPL_RPC_DATACONN_HEARTBEATCONN_DEBUG=1 go run heartbeatconn_integration_variablereceiverate.go -mode client -addr 127.0.0.1:12345
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// rpc/dataconn/heartbeatconn: renew frameconn write timeout returned errT=<nil> err=%!s(<nil>)
// rpc/dataconn/heartbeatconn: send heartbeat
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// rpc/dataconn/heartbeatconn: renew frameconn write timeout returned errT=<nil> err=%!s(<nil>)
// rpc/dataconn/heartbeatconn: received heartbeat, resetting write timeout
// ...
package main
import (
rpc/dataconn/microbenchmark/microbenchmark.go
+4 -6
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@@ -2,15 +2,13 @@
//
// With stdin / stdout on client and server, simulating zfs send|recv piping
//
// ./microbenchmark -appmode server | pv -r > /dev/null
// ./microbenchmark -appmode client -direction recv < /dev/zero
//
// ./microbenchmark -appmode server | pv -r > /dev/null
// ./microbenchmark -appmode client -direction recv < /dev/zero
//
// Without the overhead of pipes (just protocol performance, mostly useful with perf bc no bw measurement)
//
// ./microbenchmark -appmode client -direction recv -devnoopWriter -devnoopReader
// ./microbenchmark -appmode server -devnoopReader -devnoopWriter
//
// ./microbenchmark -appmode client -direction recv -devnoopWriter -devnoopReader
// ./microbenchmark -appmode server -devnoopReader -devnoopWriter
package main
import (