What does 'Queuing' mean?

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_g

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Feb 9, 2009, 8:44:20 PM2/9/09
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On a recent update, I noticed that in the 'Net' tab, some of the
progress bars for objects have 2 colors (grey and pinkish). On mouse
over, the pinkish color shows a time which is labeled as 'Queuing'.
What exactly does it mean? Is it the time spent by the browser to
queue up that object before it can display it? Or is it the time
between when the browser sent request for the object and the time it
actually started receiving the data for the object?

Also, is their any range (good - bad) for the queuing time?

Thanks

Jan Odvarko

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Feb 10, 2009, 3:00:08 AM2/10/09
to Firebug
Firefox maintain an internal queue of network requests and limits max.
number of concurrent requests,
if there is more requests executed at the same time, some of them are
delayed/queued.

The "Queuing" time shows when these reqeustes have been within this
queue.

You can see this behaviour nicely on the following page:
http://stevesouders.com/cuzillion/?c0=bi1hfff2_0&c1=bi1hfff2_0&c2=bi1hfff2_0&c3=bi1hfff2_0&c4=bi1hfff2_0&c5=bi1hfff2_0&c6=bi1hfff2_0&c7=bi1hfff2_0

The page loads 8 images (the same size), you can see that six images
is requested at the same time, while the last two a bit later.

Honza

_g

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Feb 10, 2009, 8:53:20 PM2/10/09
to Firebug
Thanks for the explanation. I was hoping to find out if my server is
delivering the content without delay, but it seems like it is purely
browser based queuing.

On Feb 10, 12:00 am, Jan Odvarko <odva...@gmail.com> wrote:
> Firefox maintain an internal queue of network requests and limits max.
> number of concurrent requests,
> if there is more requests executed at the same time, some of them are
> delayed/queued.
>
> The "Queuing" time shows when these reqeustes have been within this
> queue.
>
> You can see this behaviour nicely on the following page:http://stevesouders.com/cuzillion/?c0=bi1hfff2_0&c1=bi1hfff2_0&c2=bi1...
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