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Browser affect on Speed
04-06-2009, 02:18 AM
Post: #2
RE: Browser affect on Speed
Absolutely. IE6 and IE7 will perform very similarly unless a fair amount of javascript comes into play at which point IE7 usually is faster. Most of those differences come from what show up as "gaps" in the waterfall and are really not all that common in normal web pages but become more important for rich Internet apps like webmail.

Firefox on the other hand is significantly different from IE in the number of parallel connections, CSS/JS dependencies and enough other things that the results can not translate directly between firefox and IE (and if something like fasterfox is installed, it diverges even more). That's actually the main reason we built pagetest in the first place. Nearly all of our internal developers use firefox because it's a much friendlier browser to do dev work in (thanks to firebug primarily) and they were not doing any testing in IE.

The optimization recommendations from both Pagetest and YSlow will still apply to both browsers though, none of the rules either is checking for only apply to one of the browsers. What will not translate directly is the waterfall of the load (net panel from firebug) and the absolute load times.

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Messages In This Thread
Browser affect on Speed - pmeenan - 04-06-2009, 02:18 AM
RE: Browser affect on Speed - pmeenan - 04-06-2009 02:18 AM
RE: Browser affect on Speed - gquintana - 05-15-2009, 04:40 PM
RE: Browser affect on Speed - miltonhork - 10-16-2009, 06:38 PM
RE: Browser affect on Speed - wasimasif - 01-26-2010, 01:32 AM
RE: Browser affect on Speed - jklein - 04-17-2010, 05:39 AM

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