[I-mobile-u] page load times

[Roger Wolf]

Thanks for your input and assistance.


There were 2 https requests being made and we fixed them so they would be protocol relative, but that wasn't the real issue...

We had primarily been concerned about the slow load on the main page and the news (UCF Today) pages. After a good bit of digging we discovered an issue with the cached content on the server; it had been growing steadily bigger/worse since we upgraded to PHP 5.3.3. The slow page loads seem to have been the result of this PHP issue. We've now fixed it and the cached content is much smaller and easier to deliver quickly to the users.

Have a great weekend.

Thanks again,

Roger




From: i-mobile-u-bounces at mit.edu [mailto:i-mobile-u-bounces at mit.edu] On Behalf Of David Ormsbee
Sent: Sunday, February 27, 2011 2:31 PM
To: iMobileU Initiative
Subject: Re: [I-mobile-u] page load times

For what it's worth, Harvard's home screen runs at 141K, compared to UCF's 222K. A little of that difference is the CSS (both are using minify, but it looks like there might be some problem where gzip isn't working correctly on your server?), but the majority of the difference is jQuery. This is pure speculation, but maybe you should see if you can drop the use of SSL on that jQuery include? It might be preventing some browsers from caching the JS correctly.

I don't have access to some of the more detailed stats for Harvard right now, but I'll try to look into them when I get back into this office this week. Are there any particularly problematic pages?

Take care.

Dave


On Sat, Feb 26, 2011 at 5:02 PM, Dave Olsen <dmolsen at gmail.com<mailto:dmolsen at gmail.com>> wrote:
Roger-

Considering the factors that can go into *timing* a page load it might be better to use page weight and total number of assets to load as a better baseline for comparing sites from a page load perspective. I have a blog post that looked at page weight across a number of higher ed mobile sites and it can be found at http://www.dmolsen.com/mobile-in-higher-ed/?p=180.

For what it's worth WVU Mobile Web is very hefty at 330k. I believe it was one of the heavier mobile sites I reviewed. The heaviest though was 1.98MBs. I use minify (I think that's the name) to combine and compress JavaScript and CSS assets. I also compress files served from our server. Most of the heft comes from jQuery & jQTouch. In my latest mobile project I've been playing with zepto.js as a lightweight replacement for jQuery and I've rolled my own jQTouch replacement.

Hope this helps.

Sent from my iPhone

On Feb 25, 2011, at 9:48 AM, Roger Wolf <Roger.Wolf at ucf.edu<mailto:Roger.Wolf at ucf.edu>> wrote:
Good morning,

Has anyone calculated their average load times for their mobile web sites?
We're seeing user page load times of about 3 seconds and I'd like to have some numbers to compare that against.

Thanks,

Roger
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