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Date:      Fri, 9 Apr 2004 19:24:05 +0300
From:      Ruslan Ermilov <ru@FreeBSD.org>
To:        stable@FreeBSD.org
Cc:        net@FreeBSD.org
Subject:   Re: Testers wanted: polling(4) support for vr(4)
Message-ID:  <20040409162405.GB2461@ip.net.ua>
In-Reply-To: <20040406210453.GF272@ip.net.ua>
References:  <20040406210453.GF272@ip.net.ua>

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On Wed, Apr 07, 2004 at 12:04:53AM +0300, Ruslan Ermilov wrote:
> I've put the patch for RELENG_4 that adds polling(4) support
> to the vr(4) driver here:
>=20
> 	http://people.FreeBSD.org/~ru/patches/if_vr.patch
>=20
> Testers are welcome.
>=20
Doh, I forgot to align the patch for RELENG_4 for differences
between RELENG_4 and HEAD.  The corrected patch (tested) is at
the same location.  Some random statistics:

On an example (high, constant) TX load, I get the following data:

        5.2 -polling    5.2 +polling    4.9 -polling    4.9 +polling
------- --------------- --------------- --------------- ------------
ste(4)  77 Kps          102 Kps         70 Kps          96 Kps
vr(4)   53 Kps          100 Kps         63 Kps          105 Kps

(Kps =3D=3D kilopackets per second)

One 5.2 box was used for testing, which has both ste(4) and vr(4)
cards, and two 4.9 boxes, which have ste(4) and vr(4), respectively.


Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer

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