[Seaside] slow picture loading

[James Foster]

Hi Duro,

Before we try to adjust the configurations we should verify that the symptoms fit. When you look at your timeline in the client browser does it appear that there are clumps or groups of things being received? Is there a consistent number of items that come in each group? Is the wait till the next group consistent? Could you post a screen shot of the timeline and confirm that it is representative?

James

On Nov 26, 2012, at 1:27 AM, Tudor Girba wrote:

> Hi Paul, hi James,
> 
> Thanks for the answers.
> 
> I also thought it has to do with the Apache config, but I had no idea what to look for. Your suggestion certainly look interesting to look into, but I have close to no clue of how to do it. Do you happen to have a bit more hands-on pointers for how to:
> - increase the resources count
> - add expire headers for the images
> 
> ?
> 
> Cheers,
> Doru
> 
> 
> On Mon, Nov 26, 2012 at 5:28 AM, Paul DeBruicker <pdebruic at gmail.com> wrote:
> I suspect James has the answer but you might also consider doing the
> following:
> 
> -Add expires headers for the images in Apache and people will only have
> to download them once.
> 
> -Apache 2.2.8 was released Jan 19, 2008 so I'd definitely spend time
> upgrading to the latest stable version just to get the security
> vulnerability fixes.
> 
> 
> 
> On 11/25/2012 08:11 PM, James Foster wrote:
> > Hi Doru,
> >
> > How many resources do you have loading from the same site? Once I had a problem in which Apache was configured (by default) to only provide ten (10) items per second to the same client. I believe this was an attempt to avoid a denial-of-service attack. When I changed Apache to allow 30 items per second then my site loaded much faster.
> >
> > James
> >
> > On Nov 25, 2012, at 3:24 PM, Tudor Girba wrote:
> >
> >> Thanks. But, somehow, I think size is not really the issue.
> >>
> >> Somehow randomly, one or two of the pictures take significantly more (the delta is measured in seconds) to load than the others.
> >>
> >> And yes, I am using the timeline debugging functionality from the browser.
> >>
> >> It's strange.
> >>
> >> Doru
> >>
> >> On 24 Nov 2012, at 10:26, Gerhard Obermann <obi068 at gmail.com> wrote:
> >>
> >>> Hi Doru,
> >>>
> >>> I would reduce the image size to the displayed size and reduce the bit depth of the png to 8.
> >>> I tried it with home-icons-400-200-37.png.
> >>> Before: 31.092 Bytes
> >>> After: 7.678 Bytes
> >>>
> >>> Cheers
> >>> Gerhard
> >>>
> >>>
> >>> On Sat, Nov 24, 2012 at 8:29 AM, Tudor Girba <tudor at tudorgirba.com> wrote:
> >>> Hi,
> >>>
> >>> I am working on a pier page, and I have a couple of images in it that seem to be slow to load, although they are served through apache.
> >>>
> >>> It is true that the images are slightly large (~230K), but still I think they appear too slow.
> >>>
> >>> The example is here:
> >>> http://www.humane-assessment.com/
> >>>
> >>> Anyone has any idea of why this would happen?
> >>>
> >>> Cheers,
> >>> Doru
> >>>
> >>>
> >>> --
> >>> www.tudorgirba.com
> >>>
> >>> "Live like you mean it."
> >>>
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> >>
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> >> www.tudorgirba.com
> >>
> >> "We can create beautiful models in a vacuum.
> >> But, to get them effective we have to deal with the inconvenience of reality."
> >>
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> 
> -- 
> www.tudorgirba.com
> 
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