From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Jonathan Morton <chromatix99@gmail.com>
Cc: cake@lists.bufferbloat.net
Subject: Re: [Cake] Long-RTT broken again
Date: Sat, 07 Nov 2015 14:42:45 +0100 [thread overview]
Message-ID: <87r3k2lycq.fsf@alrua-karlstad.karlstad.toke.dk> (raw)
In-Reply-To: <C084A9CE-32C4-46A6-90B0-47B54DE16035@gmail.com> (Jonathan Morton's message of "Sat, 7 Nov 2015 15:06:20 +0200")
Jonathan Morton <chromatix99@gmail.com> writes:
> Okay, that seems to be working somewhat better now. I’m still not
> getting 100Mbps throughput in either direction, but now it seems to be
> because the receive windows won’t open far enough - there’s enough
> buffering to prevent any packet loss.
Yeah, Linux is window limited at these BDPs with the default settings.
Try these sysctls on both sides:
net.core.rmem_max=16777216
net.core.wmem_max=16777216
net.ipv4.tcp_rmem = 4096 87380 104857600
net.ipv4.tcp_wmem = 4096 16384 104857600
-Toke
next prev parent reply other threads:[~2015-11-07 13:42 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-02 16:53 Toke Høiland-Jørgensen
2015-11-02 18:29 ` Sebastian Moeller
2015-11-03 1:39 ` Jonathan Morton
2015-11-03 8:20 ` Sebastian Moeller
2015-11-03 8:25 ` Jonathan Morton
2015-11-03 8:34 ` Sebastian Moeller
2015-11-03 10:29 ` Kevin Darbyshire-Bryant
2015-11-03 11:08 ` Sebastian Moeller
2015-11-03 11:45 ` Toke Høiland-Jørgensen
2015-11-03 11:57 ` Toke Høiland-Jørgensen
2015-11-03 12:41 ` Sebastian Moeller
2015-11-03 11:50 ` Toke Høiland-Jørgensen
2015-11-03 16:43 ` Jonathan Morton
2015-11-03 17:05 ` Toke Høiland-Jørgensen
2015-11-03 17:11 ` Sebastian Moeller
2015-11-03 17:25 ` Toke Høiland-Jørgensen
2015-11-03 17:31 ` Jonathan Morton
2015-11-03 17:33 ` Toke Høiland-Jørgensen
2015-11-03 17:46 ` Sebastian Moeller
2015-11-03 17:49 ` Toke Høiland-Jørgensen
2015-11-03 17:52 ` Sebastian Moeller
2015-11-03 17:54 ` Toke Høiland-Jørgensen
2015-11-03 17:57 ` Sebastian Moeller
2015-11-03 17:59 ` Toke Høiland-Jørgensen
2015-11-03 18:06 ` Sebastian Moeller
2015-11-03 19:17 ` Jonathan Morton
2015-11-03 19:24 ` Sebastian Moeller
2015-11-05 14:36 ` Toke Høiland-Jørgensen
2015-11-05 19:30 ` Jonathan Morton
2015-11-06 11:00 ` Toke Høiland-Jørgensen
2015-11-06 14:15 ` Toke Høiland-Jørgensen
2015-11-06 15:09 ` Toke Høiland-Jørgensen
2015-11-07 5:02 ` Jonathan Morton
2015-11-07 5:16 ` Dave Taht
2015-11-07 6:49 ` Jonathan Morton
2015-11-07 8:48 ` Toke Høiland-Jørgensen
2015-11-07 10:51 ` Jonathan Morton
2015-11-07 13:06 ` Jonathan Morton
2015-11-07 13:42 ` Toke Høiland-Jørgensen [this message]
2015-11-07 16:34 ` Toke Høiland-Jørgensen
2015-11-07 13:44 ` Toke Høiland-Jørgensen
2015-11-07 15:08 ` Sebastian Moeller
2015-11-07 16:24 ` Toke Høiland-Jørgensen
2015-11-07 18:25 ` Sebastian Moeller
2015-11-07 19:32 ` Kevin Darbyshire-Bryant
2015-11-08 16:29 ` Dave Taht
2015-11-11 10:23 ` Kevin Darbyshire-Bryant
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