Re: TCP reaching to maximum throughput after a long time

From	Eric Dumazet <eric.dumazet@gmail.com>
Newsgroups	linux.kernel
Subject	Re: TCP reaching to maximum throughput after a long time
Date	2016-04-12 22:40 +0200
Message-ID	<rndgm-52b-7@gated-at.bofh.it> (permalink)
References	(2 earlier) <rn870-W0-17@gated-at.bofh.it> <rncki-4di-21@gated-at.bofh.it> <rncWZ-4S9-3@gated-at.bofh.it> <rncX0-4S9-19@gated-at.bofh.it> <rnd6G-4Yr-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Tue, 2016-04-12 at 13:23 -0700, Ben Greear wrote:

> It worked well enough for years that I didn't even know other algorithms were
> available.  It was broken around 4.0 time, and I reported it to the list,
> and no one seemed to really care enough to do anything about it.  I changed
> to reno and ignored the problem as well.
> 
> It is trivially easy to see the regression when using ath10k NIC, and from this email
> thread, I guess other NICs have similar issues.

Since it is so trivial, why don't you start a bisection ?

I asked a capture, I did not say ' switch to Reno or whatever ', right ?

Guessing is nice, but investigating and fixing is better.

Do not assume that nothing can be done, please ?

Thanks.

Thread

TCP reaching to maximum throughput after a long time "Machani, Yaniv" <yanivma@ti.com> - 2016-04-12 14:20 +0200
  Re: TCP reaching to maximum throughput after a long time Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-12 17:00 +0200
    Re: TCP reaching to maximum throughput after a long time Ben Greear <greearb@candelatech.com> - 2016-04-12 17:10 +0200
      RE: TCP reaching to maximum throughput after a long time "Machani, Yaniv" <yanivma@ti.com> - 2016-04-12 21:40 +0200
        Re: TCP reaching to maximum throughput after a long time Ben Greear <greearb@candelatech.com> - 2016-04-12 22:20 +0200
          Re: TCP reaching to maximum throughput after a long time Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-12 22:20 +0200
            Re: TCP reaching to maximum throughput after a long time Ben Greear <greearb@candelatech.com> - 2016-04-12 22:30 +0200
              Re: TCP reaching to maximum throughput after a long time Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-12 22:40 +0200
                Re: TCP reaching to maximum throughput after a long time Ben Greear <greearb@candelatech.com> - 2016-04-12 23:50 +0200
                Re: TCP reaching to maximum throughput after a long time Yuchung Cheng <ycheng@google.com> - 2016-04-13 05:10 +0200
                Re: TCP reaching to maximum throughput after a long time Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-13 05:40 +0200
                RE: TCP reaching to maximum throughput after a long time "Machani, Yaniv" <yanivma@ti.com> - 2016-04-13 22:30 +0200
    Re: TCP reaching to maximum throughput after a long time Yuchung Cheng <ycheng@google.com> - 2016-04-12 19:10 +0200

csiph-web