Thanks, this helps alot. Let me produce another build for debugging.
pushed a new commit, a new build is available.
Added another commit.
I am unable to keep these builds from updating to the official 0.14.50 version. Can you create a build that follows the release?
I think you can run with STNOUPGRADE=1 env var to prevent upgrades.
Well it doesn’t do anything other than add logging in this commit. The previous ones removed limiters completely.
Indeed I spoke too soon.
The current logs show two sessions. The one that took place ~11-12 went much faster than the one that starts at ~1930
ul_side2 2.log (1.7 MB) dl_side2.log (2.0 MB)
Can you run iperf test (you can google how to do it I guess) on the two machines to see what the actual network reports?
Hmmm… is it just me not reading it right or are these results really bad?
TCP:
Connecting to host 192.168.1.4, port 5201
[ 4] local 192.168.1.6 port 50556 connected to 192.168.1.4 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 231 KBytes 1.89 Mbits/sec
[ 4] 1.00-2.00 sec 87.7 KBytes 717 Kbits/sec
[ 4] 2.00-3.01 sec 93.3 KBytes 761 Kbits/sec
[ 4] 3.01-4.00 sec 41.0 KBytes 337 Kbits/sec
[ 4] 4.00-5.00 sec 70.7 KBytes 581 Kbits/sec
[ 4] 5.00-6.00 sec 91.9 KBytes 753 Kbits/sec
[ 4] 6.00-7.00 sec 74.9 KBytes 614 Kbits/sec
[ 4] 7.00-8.00 sec 119 KBytes 971 Kbits/sec
[ 4] 8.00-9.00 sec 72.1 KBytes 592 Kbits/sec
[ 4] 9.00-10.00 sec 69.3 KBytes 566 Kbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 951 KBytes 779 Kbits/sec sender
[ 4] 0.00-10.00 sec 824 KBytes 675 Kbits/sec receiver
UDP:
Connecting to host 192.168.1.4, port 5201
[ 4] local 192.168.1.6 port 65133 connected to 192.168.1.4 port 5201
[ ID] Interval Transfer Bandwidth Total Datagrams
[ 4] 0.00-1.00 sec 11.1 MBytes 92.9 Mbits/sec 1429
[ 4] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 2.00-3.00 sec 92.7 MBytes 778 Mbits/sec 11868
[ 4] 3.00-4.00 sec 3.99 MBytes 33.4 Mbits/sec 521
[ 4] 4.00-5.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 5.00-6.00 sec 104 MBytes 865 Mbits/sec 13258
[ 4] 6.00-7.00 sec 3.78 MBytes 31.7 Mbits/sec 494
[ 4] 7.00-8.00 sec 57.2 MBytes 480 Mbits/sec 7327
[ 4] 8.00-9.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec 10
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-10.00 sec 272 MBytes 228 Mbits/sec 119.941 ms 34729/34807 (1e+02%)
[ 4] Sent 34807 datagramsI think you found the answer to your problem.
Line 6401: [SIJAV] 2018/09/11 19:27:50.435377 protocol.go:606: INFO: Got request ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6 97255424
Line 6402: [SIJAV] 2018/09/11 19:27:50.435405 logger.go:315: DEBUG: ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6: "default" / "pycharm-community-2018.2.3 (1).dmg" o=97255424 s=131072 t=false: preamble (2018-09-11 19:27:50.435398 +0300 IDT m=+1724.556657820 - 4.347µs)
Line 6406: [SIJAV] 2018/09/11 19:27:50.436091 logger.go:315: DEBUG: ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6: "default" / "pycharm-community-2018.2.3 (1).dmg" o=97255424 s=131072 t=false: Read (2018-09-11 19:27:50.435422 +0300 IDT m=+1724.556682636 - 662.003µs)
Line 6423: [SIJAV] 2018/09/11 19:27:50.437335 logger.go:315: DEBUG: ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6: "default" / "pycharm-community-2018.2.3 (1).dmg" o=97255424 s=131072 t=false: Validate (2018-09-11 19:27:50.436101 +0300 IDT m=+1724.557361002 - 1.225028ms)
Line 6424: [SIJAV] 2018/09/11 19:27:50.437354 logger.go:315: DEBUG: ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6: "default" / "pycharm-community-2018.2.3 (1).dmg" o=97255424 s=131072 t=false: Request (2018-09-11 19:27:50.435397 +0300 IDT m=+1724.556656820 - 1.951976ms)
Line 6425: [SIJAV] 2018/09/11 19:27:50.437370 protocol.go:608: INFO: Handled request ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6 97255424
Line 8341: [SIJAV] 2018/09/11 19:34:53.652508 protocol.go:628: INFO: Sent response ZLPWFPJ-7SJO7MN-7C3H7IL-DDJRXWJ-SGRWM3E-K5ZK3CW-P6NNCZK-MLVT7Q6 97255424
Your uploading side takes 10 minutes to write the packet implying the network card buffer is full.
I suggest you check ifconfig on both sides for dropped packets, RX/TX errors, and TCP queue sizes and their fullness as your run the tests.
I guess if your devices are on WiFi in a very contended area, you might just having incredibly poor wifi performance.
On the other direction the results are better
TCP
Connecting to host 192.168.1.6, port 5201
[ 4] local 192.168.1.4 port 50086 connected to 192.168.1.6 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 717 KBytes 5.87 Mbits/sec
[ 4] 1.00-2.00 sec 928 KBytes 7.60 Mbits/sec
[ 4] 2.00-3.00 sec 0.00 Bytes 0.00 bits/sec
[ 4] 3.00-4.00 sec 0.00 Bytes 0.00 bits/sec
[ 4] 4.00-5.00 sec 291 KBytes 2.39 Mbits/sec
[ 4] 5.00-6.00 sec 384 KBytes 3.13 Mbits/sec
[ 4] 6.00-7.00 sec 549 KBytes 4.51 Mbits/sec
[ 4] 7.00-8.00 sec 510 KBytes 4.18 Mbits/sec
[ 4] 8.00-9.00 sec 902 KBytes 7.38 Mbits/sec
[ 4] 9.00-10.00 sec 765 KBytes 6.27 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 4.93 MBytes 4.13 Mbits/sec sender
[ 4] 0.00-10.00 sec 4.80 MBytes 4.02 Mbits/sec receiver
UDP
Connecting to host 192.168.1.6, port 5201
[ 4] local 192.168.1.4 port 64141 connected to 192.168.1.6 port 5201
[ ID] Interval Transfer Bandwidth Total Datagrams
[ 4] 0.00-1.00 sec 11.3 MBytes 94.3 Mbits/sec 1450
[ 4] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 2.00-3.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 3.00-4.00 sec 80.3 MBytes 674 Mbits/sec 10289
[ 4] 4.00-5.00 sec 66.4 MBytes 559 Mbits/sec 8507
[ 4] 5.00-6.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec 10
[ 4] 7.00-8.00 sec 113 MBytes 955 Mbits/sec 14529
[ 4] 8.00-9.00 sec 25.4 MBytes 213 Mbits/sec 3264
[ 4] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec 10
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-10.00 sec 297 MBytes 249 Mbits/sec 11.982 ms 37172/38033 (98%)
[ 4] Sent 38033 datagramsThanks a lot!
This has been very insightful.
I’m sorry for having wasted your time debugging Syncthing - and will focus on the network
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