On 7 Nov 2020, at 13:37, Thomas Rosenstein wrote:
I have also tried to reproduce the issue with the kernel on a virtual hyper-v machine, there I don't have any adverse effects. But it's not 100% the same, since MASQ happens on it .. will restructure a bit to get a similar representation
I reproduced something similar now, for the VM it only happens at 120 threads but I have every 5 or so seconds one packet that's delayed heavily:
PING 10.10.0.69 (10.10.0.69) 56(84) bytes of data. 64 bytes from 10.10.0.69: icmp_seq=1 ttl=63 time=0.273 ms 64 bytes from 10.10.0.69: icmp_seq=2 ttl=63 time=0.260 ms 64 bytes from 10.10.0.69: icmp_seq=3 ttl=63 time=0.621 ms 64 bytes from 10.10.0.69: icmp_seq=4 ttl=63 time=0.218 ms 64 bytes from 10.10.0.69: icmp_seq=5 ttl=63 time=52.7 ms 64 bytes from 10.10.0.69: icmp_seq=6 ttl=63 time=0.261 ms 64 bytes from 10.10.0.69: icmp_seq=7 ttl=63 time=0.381 ms 64 bytes from 10.10.0.69: icmp_seq=8 ttl=63 time=0.230 ms 64 bytes from 10.10.0.69: icmp_seq=9 ttl=63 time=0.378 ms 64 bytes from 10.10.0.69: icmp_seq=10 ttl=63 time=0.268 ms 64 bytes from 10.10.0.69: icmp_seq=11 ttl=63 time=0.313 ms 64 bytes from 10.10.0.69: icmp_seq=12 ttl=63 time=0.395 ms 64 bytes from 10.10.0.69: icmp_seq=13 ttl=63 time=0.269 ms 64 bytes from 10.10.0.69: icmp_seq=14 ttl=63 time=44.1 ms 64 bytes from 10.10.0.69: icmp_seq=15 ttl=63 time=0.279 ms 64 bytes from 10.10.0.69: icmp_seq=16 ttl=63 time=0.406 ms 64 bytes from 10.10.0.69: icmp_seq=17 ttl=63 time=0.245 ms 64 bytes from 10.10.0.69: icmp_seq=18 ttl=63 time=0.202 ms 64 bytes from 10.10.0.69: icmp_seq=19 ttl=63 time=0.229 ms 64 bytes from 10.10.0.69: icmp_seq=20 ttl=63 time=0.357 ms 64 bytes from 10.10.0.69: icmp_seq=21 ttl=63 time=0.462 ms 64 bytes from 10.10.0.69: icmp_seq=22 ttl=63 time=0.300 ms 64 bytes from 10.10.0.69: icmp_seq=23 ttl=63 time=60.3 ms 64 bytes from 10.10.0.69: icmp_seq=24 ttl=63 time=0.200 ms 64 bytes from 10.10.0.69: icmp_seq=25 ttl=63 time=15.8 ms 64 bytes from 10.10.0.69: icmp_seq=26 ttl=63 time=0.296 ms 64 bytes from 10.10.0.69: icmp_seq=27 ttl=63 time=0.273 ms 64 bytes from 10.10.0.69: icmp_seq=28 ttl=63 time=0.591 ms 64 bytes from 10.10.0.69: icmp_seq=29 ttl=63 time=0.583 ms during that time the interface is loaded with 40 Mbits. this does not appear with 3.10 kernel: PING 10.10.0.69 (10.10.0.69) 56(84) bytes of data. 64 bytes from 10.10.0.69: icmp_seq=1 ttl=63 time=0.322 ms 64 bytes from 10.10.0.69: icmp_seq=2 ttl=63 time=0.242 ms 64 bytes from 10.10.0.69: icmp_seq=3 ttl=63 time=0.461 ms 64 bytes from 10.10.0.69: icmp_seq=4 ttl=63 time=0.244 ms 64 bytes from 10.10.0.69: icmp_seq=5 ttl=63 time=0.429 ms 64 bytes from 10.10.0.69: icmp_seq=6 ttl=63 time=0.268 ms 64 bytes from 10.10.0.69: icmp_seq=7 ttl=63 time=0.540 ms 64 bytes from 10.10.0.69: icmp_seq=8 ttl=63 time=0.465 ms 64 bytes from 10.10.0.69: icmp_seq=9 ttl=63 time=0.237 ms 64 bytes from 10.10.0.69: icmp_seq=10 ttl=63 time=0.216 ms 64 bytes from 10.10.0.69: icmp_seq=11 ttl=63 time=0.248 ms 64 bytes from 10.10.0.69: icmp_seq=12 ttl=63 time=0.247 ms 64 bytes from 10.10.0.69: icmp_seq=13 ttl=63 time=0.282 ms 64 bytes from 10.10.0.69: icmp_seq=14 ttl=63 time=0.256 ms 64 bytes from 10.10.0.69: icmp_seq=15 ttl=63 time=0.268 ms 64 bytes from 10.10.0.69: icmp_seq=16 ttl=63 time=0.272 ms 64 bytes from 10.10.0.69: icmp_seq=17 ttl=63 time=0.236 ms 64 bytes from 10.10.0.69: icmp_seq=18 ttl=63 time=0.287 ms 64 bytes from 10.10.0.69: icmp_seq=19 ttl=63 time=0.288 ms 64 bytes from 10.10.0.69: icmp_seq=20 ttl=63 time=0.297 ms 64 bytes from 10.10.0.69: icmp_seq=21 ttl=63 time=0.319 ms 64 bytes from 10.10.0.69: icmp_seq=22 ttl=63 time=0.294 ms 64 bytes from 10.10.0.69: icmp_seq=23 ttl=63 time=0.313 ms 64 bytes from 10.10.0.69: icmp_seq=24 ttl=63 time=0.208 ms 64 bytes from 10.10.0.69: icmp_seq=25 ttl=63 time=0.222 ms 64 bytes from 10.10.0.69: icmp_seq=26 ttl=63 time=0.279 ms 64 bytes from 10.10.0.69: icmp_seq=27 ttl=63 time=0.257 ms 64 bytes from 10.10.0.69: icmp_seq=28 ttl=63 time=0.266 ms 64 bytes from 10.10.0.69: icmp_seq=29 ttl=63 time=0.398 ms 64 bytes from 10.10.0.69: icmp_seq=30 ttl=63 time=0.281 ms 64 bytes from 10.10.0.69: icmp_seq=31 ttl=63 time=0.263 ms 64 bytes from 10.10.0.69: icmp_seq=32 ttl=63 time=0.276 ms might be a hint that it's actually reproduceable. _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
