svn commit: r194930 - in head: sbin/ipfw sys/netinet sys/netinet/ipfw

Oleg Bulyzhin oleg at FreeBSD.org
Thu Jun 25 11:03:46 UTC 2009


On Wed, Jun 24, 2009 at 07:44:04PM -0400, Ben Kaduk wrote:

> There's a grammar error and a style error, here.  I'm actually not
> entirely sure what
> the intended meaning is, so it's a bit hard to fix the grammar error.

It's no wonder - my english writing skill is poor.

> Looking at the code, it seems that in burst mode, extra data will be
> allowed to be sent, though
> it is capped to not exceed the pipe bandwidth.
> Perhaps "... bytes of data is allowed to bypass the dummynet scheduler
> (...), though
> the transmission rate will still be capped so as to not exceed the
> pipe's bandwidth."?

Let me explain.  For example, we have pipe with bw 1Mbit/s and burst size is
5GByte. If we try to download 10Gbyte through this pipe following will happen:
1) 1st 5Gbyte of data will go with 'wire speed'.
2) last 5Gbyte will be shaped to 1Mbit/s

Could you please mail me whole 'burst' part (as it should be), and i will fix
it.

> 
> The style error is that the new sentence ("Effective burst size ...")
> should start
> on a new line.
> 
> I would also prefer to see the new sentence be an actual complete sentence
> (i.e., "The effective burst size is calculated as follows"), though
> there appears
> to be at least one other bug of this form in the file already (see,
> for example, the
> quoted text at the beginning of this hunk: "Default value is no delay.", which
> would benefit from a "the".)
> 
> 
> Unrelated to this commit, there is a grammar error early in the file:
> 
>     312 Once
>     313 .Fl p
>     314 has been specified, any additional arguments as passed on to the preproc
> essor
>     315 for interpretation.
> 
> The 'as' in line 314 should be 'are'.
> (This is from CVS r1.220, so the line numbers may not be current.)
> 
> 
> Thanks,
> 
> Ben Kaduk
> 
> 
> > +MAX(
> > +.Ar size
> > +,
> > +.Nm bw
> > +* pipe_idle_time).
> > +.Pp
> >  .It Cm profile Ar filename
> >  A file specifying the additional overhead incurred in the transmission
> >  of a packet on the link.
> >

-- 
Oleg.

================================================================
=== Oleg Bulyzhin -- OBUL-RIPN -- OBUL-RIPE -- oleg at rinet.ru ===
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