Re: [Netnice-kernels] Re: Netnice internals

[Sho F. <fu...@wi...>]

Hi,

Takashi Okumura wrote:

>hi,
>
>Scott Brumbaugh wrote:
>  
>
>>>p.s. fujita-kun. does vifctl use vif_capture.c, or NPF?
>>>      
>>>
>
>i talked with fujita-kun and the statement was his mistake. we do not need
>NPF for vifctl. i think it will work on Linux also (but, you'll need to
>modify the mount point hardcorded in the perl script).
>
>  
>
I'm sorry. I took vifctl for vf which needs vif_capture.

>>>p.p.s. can you suggest/specify a shell program we need to modify for linux?
>>>     bash? bsh? ksh?
>>>      
>>>
>>Most Linux systems use bash as the shell.
>>    
>>
>
>okay. fujita-kun, is bash an easy case? what do we need to do first?
>any suggestion?
>
>  
>
I have no idea about bash. But to implement @<bandwidth> expression, we
have to modify the parser of bash. And It will be a difficult task.
Then, I have a suggestion about the design of bandwidth configuration.
How about using environment variables? A sample expression follows.
> BW=10Mbps ftp example.com
In this approach, we don't have to modify the parser. Moreover, if a
shell which executes a netnice-enabled script doesn't indeed support
netnice, It simply excutes the command without bandwidth limitation. We
can reduce adverse effects of passing @<bandwidth> as a argument to the
command.

>actually, we may move the issue onto netnice-developers ML, since there are
>several linux developers, waiting for the kernel module to be ready.
>
>thanks,
>
>-- taka
>
>
>  
>
-- sho