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From: Johannes Berg <johannes@sipsolutions.net>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Andi Kleen <andi@firstfloor.org>, Michael Buesch <mb@bu3sch.de>,
	linux-wireless@vger.kernel.org,
	John Linville <linville@tuxdriver.com>
Subject: Re: rate instability in wireless stack
Date: Mon, 05 Jan 2009 09:17:44 +0100	[thread overview]
Message-ID: <1231143464.3286.1.camel@johannes> (raw)
In-Reply-To: <49619FF7.2030606@lwfinger.net>

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On Sun, 2009-01-04 at 23:51 -0600, Larry Finger wrote:

> rate     throughput  ewma prob   this prob  this succ/attempt   success    attempts
>      1         0.9       97.7      100.0          1(  1)       2086        2206
>      2         0.1        7.0        0.0          0(  0)          1           5
>      5.5       0.0        0.0        0.0          0(  0)          0           1
>     11         0.0        0.0        0.0          0(  0)          0           4
>      6         1.4       25.0      100.0          0(  0)          1           2
>      9         0.0        0.0        0.0          0(  0)          0           6
>     12         7.6       68.8        0.0          0(  0)        187         192
>     18         7.0       43.3        0.0          0(  0)          3           5
>     24        10.6       49.8      100.0          0(  0)         20          40
>     36         8.5       28.0       50.0          0(  0)       1389        1520
> T P 48        15.7       99.9      100.0          1(  1)       3277        3525
>  t  54        21.7       50.1        0.0          0(  0)      19282       20028
> 
> Total packet count::    ideal 3800      lookaround 422
> 
> Johannes,
> 
> Any explanation as to why there are no attempts?

It only sent two probe packets? Remember that zd1211 is rather rate
control challenged. I don't know. nbd might be able to tell you more.

johannes

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  reply	other threads:[~2009-01-05  8:17 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-04 16:46 rate instability in wireless stack Andi Kleen
2009-01-04 16:36 ` Michael Buesch
2009-01-04 17:41   ` Andi Kleen
2009-01-05  0:29     ` Larry Finger
2009-01-05  2:53       ` Andi Kleen
2009-01-05  3:55         ` Larry Finger
2009-01-05  5:02           ` Andi Kleen
2009-01-05  4:59             ` Larry Finger
2009-01-05  5:48               ` Andi Kleen
2009-01-05  5:51                 ` Larry Finger
2009-01-05  8:17                   ` Johannes Berg [this message]
2009-01-05 12:54                     ` Andi Kleen
2009-01-05 13:32                 ` Felix Fietkau
2009-01-05 14:23                   ` Andi Kleen
2009-01-05 14:41                     ` Felix Fietkau
2009-01-05 15:24                       ` Andi Kleen
2009-01-05 15:25                         ` Felix Fietkau
2009-01-05 16:35                           ` Andi Kleen
2009-01-05 16:36                             ` Felix Fietkau
2009-01-05 17:11                               ` Andi Kleen
2009-01-05 17:01                                 ` Felix Fietkau
2009-01-05 19:33                                   ` Hin-Tak Leung
2009-01-05 20:16                                     ` Larry Finger
2009-01-05  4:22         ` Larry Finger
  -- strict thread matches above, loose matches on Subject: below --
2009-01-07  6:46 Martín Ernesto Barreyro

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