https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #11 from bc...@lafn.org ---
(In reply to Bryan Drewery from comment #9)
It appears that iperf3 does not use multiple streams regardless of the settings
for the arguments. With nstreams set to > 1, tcpdump shows that the SCTP fi
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #10 from Bryan Drewery ---
(In reply to Michael Tuexen from comment #7)
As for netperf it is doing something very different. -T is parsed into
num_associations in src/nettest_sctp.c and then only used for test length and
for ho
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #9 from Bryan Drewery ---
(In reply to Michael Tuexen from comment #7)
iperf3 only does this. num_ostreams is only used here so I don't think it does
anything else beyond this.
if (test->settings->num_ostreams > 0) {
struc
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #8 from Bryan Drewery ---
(In reply to bc979 from comment #6)
-P is for multiple streams. --nstreams is for SCTP multiple subflows.
--sctpuse SCTP rather than TCP
--nstreams # number of SCT
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #7 from Michael Tuexen ---
(In reply to bc979 from comment #6)
But how is iperf distributing the load on the two streams?
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
bc...@lafn.org changed:
What|Removed |Added
CC||bc...@lafn.org
--- Comment #6 from
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #5 from Michael Tuexen ---
(In reply to Bryan Drewery from comment #4)
How are iperf and netperf using multiple streams? Just selecting the stream
when performing a sendmsg() call or are they using multiple threads/processes,
ea
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
--- Comment #4 from Bryan Drewery ---
I see something that I think is similar with iperf3 and netperf. Using 1 stream
is fine but using >1 stream completely kills bandwidth.
`iperf3 --sctp -c 127.0.0.1` is OK. `iperf3 --sctp --nstreams 1 -
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
Bryan Drewery changed:
What|Removed |Added
CC||bdrew...@freebsd.org
--- Comment #
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
Michael Tuexen changed:
What|Removed |Added
Status|New |In Progress
--- Comment #2 from M
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251052
Michael Tuexen changed:
What|Removed |Added
Summary|SCTP traffic becomes|[sctp] Throughput becomes
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