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From: Pavel Roskin <proski@gnu.org>
To: Adrian Chadd <adrian@freebsd.org>
Cc: Joerg Pommnitz <pommnitz@yahoo.com>,
	Bob Copeland <me@bobcopeland.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"ath5k-devel@lists.ath5k.org" <ath5k-devel@lists.ath5k.org>
Subject: Re: [ath5k-devel] Performance regression between Madwifi/net80211 and ath5k/mac80211
Date: Wed, 19 Oct 2011 11:55:20 -0400	[thread overview]
Message-ID: <20111019115520.79cfaef8@mj> (raw)
In-Reply-To: <CAJ-VmokZibCys+9ZLg6yEbauJfbgErbezMcTZ2SjPmR9SMgQ7w@mail.gmail.com>

On Wed, 19 Oct 2011 19:33:53 +0800
Adrian Chadd <adrian@freebsd.org> wrote:

> .. does madwifi have that net80211 "aggressive mode" by default, where
> it overrides the best-effort WME queue parameters to allow for
> bursting?

I tried madwifi-0.9.4 snapshot on a CM9 card, and I got:

# iwpriv ath0 get_abolt
ath0      get_abolt:218  

218 is 0xda, which means that the following capabilities are enabled:

IEEE80211_ABOLT_TURBO_PRIME
IEEE80211_ABOLT_FAST_FRAME
IEEE80211_ABOLT_BURST
IEEE80211_ABOLT_XR
IEEE80211_ABOLT_AR

And those are not enabled:

IEEE80211_ABOLT_TURBO_G
IEEE80211_ABOLT_COMPRESSION
IEEE80211_ABOLT_WME_ELE

I would just unset all capabilities and retry.

> I see exactly that difference in FreeBSD (33mbit vs 22mbit) when I
> disable that aggressive mode code.

-- 
Regards,
Pavel Roskin

  reply	other threads:[~2011-10-19 15:55 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-21 20:09 Performance regression between Madwifi/net80211 and ath5k/mac80211 jpo
2011-06-22  2:17 ` Adrian Chadd
2011-06-22 13:41   ` Joerg Pommnitz
2011-06-22 13:46     ` Johannes Berg
2011-06-22 14:41       ` Joerg Pommnitz
2011-06-22 14:50         ` Johannes Berg
2011-06-22 15:02           ` AW: " Joerg Pommnitz
2011-06-22 15:07           ` Joerg Pommnitz
2011-06-22 18:52             ` Luis R. Rodriguez
2011-06-26 14:45             ` [ath5k-devel] " Felix Fietkau
2011-06-27 10:26               ` Joerg Pommnitz
2011-06-30 11:02             ` Bob Copeland
2011-10-19 10:06               ` Joerg Pommnitz
2011-10-19 11:33                 ` Adrian Chadd
2011-10-19 15:55                   ` Pavel Roskin [this message]
2011-10-19 18:27                     ` Sam Leffler

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