Re: [Bloat] BBR implementations, knobs to turn?

2020-11-16 Thread Neal Cardwell via Bloat
A couple questions: - I guess this is Linux TCP BBRv1 ("bbr" module)? What's the OS distribution and exact kernel version ("uname -r")? - What do you mean when you say "The old server allows for more re-transmits"? - If BBRv1 is suffering throughput problems due to high retransmit rates, then

[Bloat] BBR implementations, knobs to turn?

2020-11-16 Thread erik.taraldsen
I'm in the process of replacing a throughput test server. The old server is running a 1Gbit Ethernet card on a 1Gbit link and ubuntu. The new a 10Gbit card on a 40Gbit link and centos. Both have low load and Xenon processors. The purpose is for field installers to verify the bandwidth sold

Re: [Bloat] Router congestion, slow ping/ack times with kernel 5.4.60

2020-11-16 Thread Thomas Rosenstein via Bloat
On 16 Nov 2020, at 13:34, Jesper Dangaard Brouer wrote: On Wed, 04 Nov 2020 16:23:12 +0100 Thomas Rosenstein via Bloat wrote: [...] I have multiple routers which connect to multiple upstream providers, I have noticed a high latency shift in icmp (and generally all connection) if I run b2

Re: [Bloat] Router congestion, slow ping/ack times with kernel 5.4.60

2020-11-16 Thread Jesper Dangaard Brouer
On Wed, 04 Nov 2020 16:23:12 +0100 Thomas Rosenstein via Bloat wrote: [...] > I have multiple routers which connect to multiple upstream providers, I > have noticed a high latency shift in icmp (and generally all connection) > if I run b2 upload-file --threads 40 (and I can reproduce this) >

Re: [Bloat] Router congestion, slow ping/ack times with kernel 5.4.60

2020-11-16 Thread Thomas Rosenstein via Bloat
On 16 Nov 2020, at 12:56, Jesper Dangaard Brouer wrote: On Fri, 13 Nov 2020 07:31:26 +0100 "Thomas Rosenstein" wrote: On 12 Nov 2020, at 16:42, Jesper Dangaard Brouer wrote: On Thu, 12 Nov 2020 14:42:59 +0100 "Thomas Rosenstein" wrote: Notice "Adaptive" setting is on. My long-shot

Re: [Bloat] Router congestion, slow ping/ack times with kernel 5.4.60

2020-11-16 Thread Jesper Dangaard Brouer
On Fri, 13 Nov 2020 07:31:26 +0100 "Thomas Rosenstein" wrote: > On 12 Nov 2020, at 16:42, Jesper Dangaard Brouer wrote: > > > On Thu, 12 Nov 2020 14:42:59 +0100 > > "Thomas Rosenstein" wrote: > > > >>> Notice "Adaptive" setting is on. My long-shot theory(2) is that > >>> this > >>>