From: David Miller <davem@davemloft.net>
To: mst@redhat.com
Cc: caleb.raitto@gmail.com, jasowang@redhat.com,
netdev@vger.kernel.org, caraitto@google.com
Subject: Re: [PATCH net-next] virtio_net: force_napi_tx module param.
Date: Sun, 29 Jul 2018 13:36:36 -0700 (PDT) [thread overview]
Message-ID: <20180729.133636.8234343672255084.davem@davemloft.net> (raw)
In-Reply-To: <20180729231247-mutt-send-email-mst@kernel.org>
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 29 Jul 2018 23:33:20 +0300
> The point really is that tx irq handler needs a lock on the tx queue to
> free up skbs, so processing it on another CPU while tx is active causes
> cache line bounces. So we want affinity to CPUs that submit to this
> queue on the theory they have these cache line(s) anyway.
>
> I suspect it's not a uniqueue property of virtio.
It certainly is not.
I think the objectives are clear, someone just needs to put them
together cleanly into a patch :)
next prev parent reply other threads:[~2018-07-29 22:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-23 23:11 [PATCH net-next] virtio_net: force_napi_tx module param Caleb Raitto
2018-07-24 0:53 ` Stephen Hemminger
2018-07-24 1:23 ` Willem de Bruijn
2018-07-24 10:42 ` Michael S. Tsirkin
2018-07-24 14:01 ` Willem de Bruijn
2018-07-24 18:38 ` Michael S. Tsirkin
2018-07-24 20:52 ` Willem de Bruijn
2018-07-24 22:23 ` Michael S. Tsirkin
2018-07-24 22:31 ` Willem de Bruijn
2018-07-24 22:46 ` Michael S. Tsirkin
2018-07-25 0:02 ` Willem de Bruijn
2018-07-25 0:17 ` Jon Olson
2018-07-30 6:06 ` Jason Wang
2018-08-01 22:27 ` Michael S. Tsirkin
2018-08-28 19:57 ` Willem de Bruijn
2018-08-29 7:56 ` Jason Wang
2018-08-29 13:01 ` Willem de Bruijn
2018-09-09 23:07 ` Willem de Bruijn
2018-09-10 5:59 ` Jason Wang
2018-07-29 16:00 ` David Miller
2018-07-29 20:33 ` Michael S. Tsirkin
2018-07-29 20:36 ` David Miller [this message]
2018-07-29 21:09 ` Willem de Bruijn
2018-07-29 21:32 ` Willem de Bruijn
2018-07-31 12:34 ` Michael S. Tsirkin
2018-08-01 15:46 ` Willem de Bruijn
2018-08-01 15:56 ` Willem de Bruijn
2018-08-01 22:25 ` Michael S. Tsirkin
2018-08-01 22:43 ` Willem de Bruijn
2018-08-01 22:48 ` Michael S. Tsirkin
2018-08-01 23:33 ` Willem de Bruijn
2018-07-30 19:51 ` Stephen Hemminger
2018-07-31 1:41 ` Jason Wang
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