From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [Pv-drivers] rps and pvdrivers
Date: Sat, 04 Sep 2010 09:00:52 +0200
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To: Chetan Loke <chetanloke@gmail.com>,
	Tom Herbert <therbert@google.com>
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Le samedi 04 septembre 2010 =C3=A0 08:51 +0200, Eric Dumazet a =C3=A9cr=
it :
> >=20
>=20
> Reproduce what exactly ?=20
>=20
> I dont understand what the problem is, reading your description.
>=20
> RPS is not automatically switched on, you have to configure it.
>=20
> echo ffff >/sys/class/net/eth0/queues/rx-0/rps_cpus
>=20
> Same for RFS if you prefer to use RFS
>=20
> echo 16384 >/sys/class/net/eth0/queues/rx-0/rps_flow_cnt
>=20

And, before you try this, you probably also need

echo 16384 >/proc/sys/net/core/rps_sock_flow_entries

Tom, I believe you were about to add RPS documentation in
Documentation/ ?


> If you receive a flood, your cpu stay in NAPI mode, and no hardware
> interrupt is received while you process xxx.xxx packets per second.
>=20
>=20