Return-path: Received: from crystal.sipsolutions.net ([195.210.38.204]:49890 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764946AbXGZPSE (ORCPT ); Thu, 26 Jul 2007 11:18:04 -0400 Subject: RE: [PATCH 1/1] mac80211: Replace overly "sticky" averagingfilters for rssi, signal, noise. From: Johannes Berg To: "Cahill, Ben M" Cc: Jiri Benc , benmcahill@gmail.com, flamingice@sourmilk.net, linux-wireless@vger.kernel.org In-Reply-To: <4220499A1B034C4FA93B547BA01E1FF00174623A@orsmsx413.amr.corp.intel.com> References: <4220499A1B034C4FA93B547BA01E1FF00174623A@orsmsx413.amr.corp.intel.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-kRNsRLryhGetDMgLo6uq" Date: Thu, 26 Jul 2007 17:17:54 +0200 Message-Id: <1185463074.4006.23.camel@johannes.berg> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-kRNsRLryhGetDMgLo6uq Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2007-07-25 at 11:50 -0700, Cahill, Ben M wrote: > Sorry, had to put this aside for awhile ... Actually, I like the way > things behave without a filter at all (see other mail), but I just > wanted to follow up ... and thank Johannes for his thoughtful comments. :) > Actually, "arithmetic" right shift works for either signed or unsigned. > Arithmetic shift looks at the most-significant bit, and shifts more of > that in from the left, preserving the sign. Eh, right. And I suppose it can actually optimise /16 by an arithmetic shift. > [IIR vs FIR] Ah, cool, I wasn't aware of these terms. johannes --=-kRNsRLryhGetDMgLo6uq Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iD8DBQBGqLsi/ETPhpq3jKURAn1hAJ4791GUr+xMCIoTsKL4Myw5BhzwZQCZAYEJ iQm/ZD89XJi8mmV7Nf4OOn0= =QX5Z -----END PGP SIGNATURE----- --=-kRNsRLryhGetDMgLo6uq--