From: Larry Finger <Larry.Finger@lwfinger.net>
To: Felix Fietkau <nbd@openwrt.org>
Cc: wireless <linux-wireless@vger.kernel.org>
Subject: Re: Rate-setting problem with Broadcom 4315
Date: Mon, 26 Oct 2009 00:39:15 -0500 [thread overview]
Message-ID: <4AE53603.1040506@lwfinger.net> (raw)
In-Reply-To: <4AE520F1.2070704@openwrt.org>
Actually, the rate-setting mechanism is working. If I looked at the
iwconfig rate while a transmission was in progress, the rate toggled
between 48 and 54 Mb/s. When I checked between tests, it showed 1
Mb/s, which is what fooled me.
The rc_stats table is:
rate throughput ewma prob this prob this succ/attempt
success attempts
P 1 0.9 99.9 100.0 0( 0) 314
314
2 1.8 96.9 100.0 0( 0) 15
16
5.5 4.8 95.7 100.0 0( 0) 12
12
11 9.5 99.9 100.0 0( 0) 134
138
6 5.4 95.7 100.0 0( 0) 11
11
9 8.0 95.7 100.0 0( 0) 11
11
12 10.6 95.7 100.0 0( 0) 11
11
18 15.5 95.5 100.0 0( 0) 12
13
24 20.3 95.7 100.0 0( 0) 12
12
36 29.3 96.5 96.4 0( 0) 4118
4249
T 48 37.6 96.3 100.0 23( 23) 376174
414958
t 54 36.8 84.8 81.5 62( 76) 356248
427489
Total packet count:: ideal 6627 lookaround 348
The automatic throughput is about 13 Mb/s.
Larry
prev parent reply other threads:[~2009-10-26 5:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-25 18:55 Rate-setting problem with Broadcom 4315 Larry Finger
2009-10-26 4:09 ` Felix Fietkau
2009-10-26 5:39 ` Larry Finger [this message]
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