[squid-users] Delay Pools Parameters

[Antony Stone]

> 16.11.15 20:49, Tecnología CHARNE.NET пишет:
> > Hello!
> > 
> > I'm configuring delay pools on squid 3.5
> > 
> > I don't understand online doc
> > [http://www.squid-cache.org/Versions/v3/3.5/cfgman/delay_parameters.html]
> > about delay_parameters
> > 
> > ----
> > "Note that 8 x 32000 KByte/sec -> 256Kbit/sec.
> >               8 x  8000 KByte/sec ->  64Kbit/sec.
> >               8 x   600 Byte/sec  -> 4800bit/sec.
> > "
> > ----
> > 
> > It should be
> > 
> >     8 x 32000 KByte/sec -> 256000Kbits/sec
> > or
> >     8 x 32KByte/sec -> 256 Kbit/sec
> > 
> > What I am missing??

On Monday 16 November 2015 at 15:51:14, Yuri Voinov wrote:

> You have forgotten to read fine manuals first.

On Monday 16 November 2015 at 15:53:00, Yuri Voinov wrote:

> Feel free to read Squid Wiki:
> 
> http://wiki.squid-cache.org/Features/DelayPools



I think this is a little unfair on the original poster.

The arithmetic in the documentation does appear to be incorrect - look at the 
units:

If 8 x 600 bytes per second = 4800 bits per second (which seems reasonable to 
me)

then how can

8 x 8000 kilobytes per second = 64 kilobits per second

and 8 x 32000 kilobytes per second = 256 kilobits per second?

The multiplication by 8 is to convert from bytes to bits.

The units (X per second, or kilo-X per second) should not change.

Therefore I believe the correct calculations should be:

8 x 32000 bytes per second = 256000 bits per second = 256kilobits per second
8 x 8000 bytes per second = 64000 bits per second = 64 kilobits per second
8 x 600 bytes per second = 4800 bits per second

Note the omission of "kilobytes per second" from the first column of numbers.


Regards,


Antony.

-- 
I don't know, maybe if we all waited then cosmic rays would write all our 
software for us. Of course it might take a while.

 - Ron Minnich, Los Alamos National Laboratory

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