From: Jussi Maki <joamaki@gmail.com>
To: Jay Vosburgh <jay.vosburgh@canonical.com>
Cc: bpf <bpf@vger.kernel.org>,
netdev@vger.kernel.org, Daniel Borkmann <daniel@iogearbox.net>,
andy@greyhouse.net, vfalico@gmail.com, andrii@kernel.org
Subject: Re: [PATCH bpf-next 2/3] net: bonding: Use per-cpu rr_tx_counter
Date: Mon, 14 Jun 2021 09:54:25 +0200 [thread overview]
Message-ID: <CAHn8xcmT1nvOci_Cc0Oo49Gm9dab6B-b5B20nircCHu0jG8GRA@mail.gmail.com> (raw)
In-Reply-To: <22630.1623283469@famine>
On Thu, Jun 10, 2021 at 2:04 AM Jay Vosburgh <jay.vosburgh@canonical.com> wrote:
>
> Jussi Maki <joamaki@gmail.com> wrote:
>
> With the rr_tx_counter is per-cpu, each CPU is essentially doing
> its own round-robin logic, independently of other CPUs, so the resulting
> spread of transmitted packets may not be as evenly distributed (as
> multiple CPUs could select the same interface to transmit on
> approximately in lock-step). I'm not sure if this could cause actual
> problems in practice, though, as particular flows shouldn't skip between
> CPUs (and thus rr_tx_counters) very often, and round-robin already
> shouldn't be the first choice if no packet reordering is a hard
> requirement.
>
> I think this patch could be submitted against net-next
> independently of the rest of the series.
Yes this makes sense. I'll submit it separately against net-next today
and drop it off from this patchset.
next prev parent reply other threads:[~2021-06-14 7:55 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-09 13:55 [PATCH bpf-next 0/3] XDP bonding support Jussi Maki
2021-06-09 13:55 ` [PATCH bpf-next 1/3] net: bonding: Add XDP support to the bonding driver Jussi Maki
2021-06-09 22:29 ` Maciej Fijalkowski
2021-06-09 23:29 ` Jay Vosburgh
2021-06-14 8:02 ` Jussi Maki
2021-06-17 3:40 ` kernel test robot
2021-06-17 6:35 ` kernel test robot
2021-06-22 7:24 ` kernel test robot
2021-06-09 13:55 ` [PATCH bpf-next 2/3] net: bonding: Use per-cpu rr_tx_counter Jussi Maki
2021-06-10 0:04 ` Jay Vosburgh
2021-06-14 7:54 ` Jussi Maki [this message]
2021-06-09 13:55 ` [PATCH bpf-next 3/3] selftests/bpf: Add tests for XDP bonding Jussi Maki
2021-06-09 22:07 ` Maciej Fijalkowski
2021-06-14 8:08 ` Jussi Maki
2021-06-14 8:48 ` Magnus Karlsson
2021-06-14 12:20 ` Jussi Maki
2021-06-10 17:24 ` [PATCH bpf-next 0/3] XDP bonding support Andrii Nakryiko
2021-06-14 12:25 ` Jussi Maki
2021-06-14 15:37 ` Jay Vosburgh
2021-06-15 5:34 ` Andrii Nakryiko
2021-06-24 9:18 ` [PATCH bpf-next v2 0/4] " joamaki
2021-06-24 9:18 ` [PATCH bpf-next v2 1/4] net: bonding: Refactor bond_xmit_hash for use with xdp_buff joamaki
2021-06-24 9:18 ` [PATCH bpf-next v2 2/4] net: core: Add support for XDP redirection to slave device joamaki
2021-06-24 9:18 ` [PATCH bpf-next v2 3/4] net: bonding: Add XDP support to the bonding driver joamaki
2021-06-24 9:18 ` [PATCH bpf-next v2 4/4] devmap: Exclude XDP broadcast to master device joamaki
2021-07-01 18:12 ` Jay Vosburgh
2021-07-05 11:44 ` Jussi Maki
2021-07-01 18:20 ` [PATCH bpf-next v2 0/4] XDP bonding support Jay Vosburgh
2021-07-05 10:32 ` Jussi Maki
2021-07-07 11:25 ` [PATCH bpf-next v3 0/5] " Jussi Maki
2021-07-07 11:25 ` [PATCH bpf-next v3 1/5] net: bonding: Refactor bond_xmit_hash for use with xdp_buff Jussi Maki
2021-07-07 11:25 ` [PATCH bpf-next v3 2/5] net: core: Add support for XDP redirection to slave device Jussi Maki
2021-07-07 11:25 ` [PATCH bpf-next v3 3/5] net: bonding: Add XDP support to the bonding driver Jussi Maki
2021-07-13 7:14 ` kernel test robot
2021-07-07 11:25 ` [PATCH bpf-next v3 4/5] devmap: Exclude XDP broadcast to master device Jussi Maki
2021-07-07 11:25 ` [PATCH bpf-next v3 5/5] net: core: Allow netdev_lower_get_next_private_rcu in bh context Jussi Maki
2021-07-28 23:43 ` [PATCH bpf-next v4 0/6] XDP bonding support joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 1/6] net: bonding: Refactor bond_xmit_hash for use with xdp_buff joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 2/6] net: core: Add support for XDP redirection to slave device joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 3/6] net: bonding: Add XDP support to the bonding driver joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 4/6] devmap: Exclude XDP broadcast to master device joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 5/6] net: core: Allow netdev_lower_get_next_private_rcu in bh context joamaki
2021-07-28 23:43 ` [PATCH bpf-next v4 6/6] selftests/bpf: Add tests for XDP bonding joamaki
2021-08-03 0:19 ` Andrii Nakryiko
2021-08-03 9:40 ` Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 0/7] XDP bonding support Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 1/7] net: bonding: Refactor bond_xmit_hash for use with xdp_buff Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 2/7] net: core: Add support for XDP redirection to slave device Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 3/7] net: bonding: Add XDP support to the bonding driver Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 4/7] devmap: Exclude XDP broadcast to master device Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 5/7] net: core: Allow netdev_lower_get_next_private_rcu in bh context Jussi Maki
2021-07-30 6:18 ` [PATCH bpf-next v5 6/7] selftests/bpf: Fix xdp_tx.c prog section name Jussi Maki
2021-08-04 23:35 ` Andrii Nakryiko
2021-07-30 6:18 ` [PATCH bpf-next v5 7/7] selftests/bpf: Add tests for XDP bonding Jussi Maki
2021-08-04 23:33 ` Andrii Nakryiko
2021-07-31 5:57 ` [PATCH bpf-next v6 0/7]: XDP bonding support Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 1/7] net: bonding: Refactor bond_xmit_hash for use with xdp_buff Jussi Maki
2021-08-11 1:52 ` Jonathan Toppins
2021-08-11 8:22 ` Jussi Maki
2021-08-11 14:05 ` Jonathan Toppins
2021-08-16 9:05 ` Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 2/7] net: core: Add support for XDP redirection to slave device Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 3/7] net: bonding: Add XDP support to the bonding driver Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 4/7] devmap: Exclude XDP broadcast to master device Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 5/7] net: core: Allow netdev_lower_get_next_private_rcu in bh context Jussi Maki
2021-07-31 5:57 ` [PATCH bpf-next v6 6/7] selftests/bpf: Fix xdp_tx.c prog section name Jussi Maki
2021-08-06 22:53 ` Andrii Nakryiko
2021-07-31 5:57 ` [PATCH bpf-next v6 7/7] selftests/bpf: Add tests for XDP bonding Jussi Maki
2021-08-06 22:50 ` Andrii Nakryiko
2021-08-09 14:24 ` Jussi Maki
2021-08-09 21:41 ` Daniel Borkmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAHn8xcmT1nvOci_Cc0Oo49Gm9dab6B-b5B20nircCHu0jG8GRA@mail.gmail.com \
--to=joamaki@gmail.com \
--cc=andrii@kernel.org \
--cc=andy@greyhouse.net \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=jay.vosburgh@canonical.com \
--cc=netdev@vger.kernel.org \
--cc=vfalico@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).