Re: [Bugme-new] [Bug 7278] New: forcedeth slowed down by traffic shaping

Re: [Bugme-new] [Bug 7278] New: forcedeth slowed down by traffic shaping

[Andrew Morton]

On Fri, 6 Oct 2006 17:18:13 -0700
bugme-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=7278
> 
>            Summary: forcedeth slowed down by traffic shaping
>     Kernel Version: 2.6.16
>             Status: NEW
>           Severity: normal
>              Owner: jgarzik@pobox.com
>          Submitter: kernel-bugzilla@future.shiny.co.il
> 
> 
> When assigninig a simple Tocket Bucket Filter (TBF) classless trafic shaping
> policy to the eth0 device (provided by forcedeth), the device's upstream speed
> drops to ~12kbyte/s, regardless of the traffic limit I set in the shaping rule.
> In fact, the traffic limit values could be larger than the connection's
> throughput and it'll still limit to mere 12kbyte/s. Once I revert the rule to
> pfifo_fast, the rate resumes to the connection's real one (64kbyte/s).
> 
> If I set the TBF lower than 96kbit on eth0, it indeed applies; in other words, I
> can make the connection slower than 12kbyte/s but not faster.
> 
> If I assign the same rule to ppp0, it works just as intended, for rules higher
> than 12kbyte/s, leading me to believe forcedeth has something to do with it.
> 
> (Is there any module parameter I can try tweaking?)
> 

Re: [Bugme-new] [Bug 7278] New: forcedeth slowed down by traffic shaping

[Jarek Poplawski]

On 07-10-2006 02:22, Andrew Morton wrote:
> On Fri, 6 Oct 2006 17:18:13 -0700
> bugme-daemon@bugzilla.kernel.org wrote:
> 
>> http://bugzilla.kernel.org/show_bug.cgi?id=7278
>>
>>            Summary: forcedeth slowed down by traffic shaping
>>     Kernel Version: 2.6.16
>>             Status: NEW
>>           Severity: normal
>>              Owner: jgarzik@pobox.com
>>          Submitter: kernel-bugzilla@future.shiny.co.il
>>
>>
>> When assigninig a simple Tocket Bucket Filter (TBF) classless trafic shaping
>> policy to the eth0 device (provided by forcedeth), the device's upstream speed
>> drops to ~12kbyte/s, regardless of the traffic limit I set in the shaping rule.
>> In fact, the traffic limit values could be larger than the connection's
>> throughput and it'll still limit to mere 12kbyte/s. Once I revert the rule to
>> pfifo_fast, the rate resumes to the connection's real one (64kbyte/s).
>>
>> If I set the TBF lower than 96kbit on eth0, it indeed applies; in other words, I
>> can make the connection slower than 12kbyte/s but not faster.
>>
>> If I assign the same rule to ppp0, it works just as intended, for rules higher
>> than 12kbyte/s, leading me to believe forcedeth has something to do with it.
>>
>> (Is there any module parameter I can try tweaking?)

Isn't it to unpolite to expect from the submitter some details
like this tbf rule or testing with other kernel version?

Jarek P.  

Re: [Bugme-new] [Bug 7278] New: forcedeth slowed down by traffic shaping

[Patrick McHardy]

Jarek Poplawski wrote:
> On 07-10-2006 02:22, Andrew Morton wrote:
> 
>>On Fri, 6 Oct 2006 17:18:13 -0700
>>bugme-daemon@bugzilla.kernel.org wrote:
>>
>>
>>>http://bugzilla.kernel.org/show_bug.cgi?id=7278
>>>
>>>           Summary: forcedeth slowed down by traffic shaping
>>>    Kernel Version: 2.6.16
>>>            Status: NEW
>>>          Severity: normal
>>>             Owner: jgarzik@pobox.com
>>>         Submitter: kernel-bugzilla@future.shiny.co.il
>>>
>>>
>>>When assigninig a simple Tocket Bucket Filter (TBF) classless trafic shaping
>>>policy to the eth0 device (provided by forcedeth), the device's upstream speed
>>>drops to ~12kbyte/s, regardless of the traffic limit I set in the shaping rule.
>>>In fact, the traffic limit values could be larger than the connection's
>>>throughput and it'll still limit to mere 12kbyte/s. Once I revert the rule to
>>>pfifo_fast, the rate resumes to the connection's real one (64kbyte/s).
>>>
>>>If I set the TBF lower than 96kbit on eth0, it indeed applies; in other words, I
>>>can make the connection slower than 12kbyte/s but not faster.
>>>
>>>If I assign the same rule to ppp0, it works just as intended, for rules higher
>>>than 12kbyte/s, leading me to believe forcedeth has something to do with it.
>>>
>>>(Is there any module parameter I can try tweaking?)
> 
> 
> Isn't it to unpolite to expect from the submitter some details
> like this tbf rule or testing with other kernel version?


The TBF command would be a good start to make sure its not a
configuration error.