Yeah, there are only so many things you can do to make things faster when you have to do cross continent network calls.
While latency is important, what I'm stressing is the user experience. It's more important for your application to feel fast than it is to actually *be* fast. In a perfect world you have both. -- Ikai Lan Developer Programs Engineer, Google App Engine plus.ikailan.com | twitter.com/ikai On Wed, Aug 3, 2011 at 5:35 PM, Arnaldo M Pereira <[email protected]> wrote: > The latency of requests from Brazil are consistently high, even following > all page speed advices. > > IMO, the _network_ latency is not-so-rarely unacceptable with datacenters > just in US. > On Aug 3, 2011 3:10 PM, "Ikai Lan (Google)" <[email protected]> wrote: > > Patrick, did you follow the page speed advice? The majority of what makes > > web sites appear slow is the loading of assets and JavaScript execution. > > Steve Souders (the father of web page speed) has been quoted as saying > this > > can account for up to 90% of web site slowness. > > > > Obviously, the first time visiting a site where nothing is in the cache > or > > if you are serving static assets from North America, this will cause the > > site to appear slow, but take a look at these best practices the next > time > > you are testing in Japan. > > > > -- > > Ikai Lan > > Developer Programs Engineer, Google App Engine > > plus.ikailan.com | twitter.com/ikai > > > > > > > > On Wed, Aug 3, 2011 at 4:59 AM, Patrick Poon <[email protected]> > wrote: > > > >> Ikai, > >> > >> It sure would be great if Google would consider adding regional data > >> centers on the roadmap. I live in Boston, but travel to Japan a few > >> times a year. Most recently, I stayed in Yokohama for the month of > >> June, actively developing and testing my app the entire month. There > >> was a noticeable degradation in performance compared to what I > >> experience in Boston. Not just after calling my app the first time > >> after a period of non-activity, but even after on-going active use. > >> > >> The latency didn't make my app unusable but it was noticeable enough > >> to cause me concern as to how potential customers in Japan might > >> perceive the speed of my app. > >> > >> Cheers, > >> > >> Patrick > >> > >> On Aug 2, 2:54 pm, "Ikai Lan (Google)" <[email protected]> wrote: > >> > The primary data centers serving App Engine are in North America, > >> however, > >> > assets and items that are edge cached are served from Google edge > caches > >> > which are located wherever there are Google data centers. > >> > > >> > When evaluating page speed, it's typically assets that cause page > speeds > >> to > >> > appear slow: > >> > > >> > http://stevesouders.com/hpws/rules.php > >> > > >> > Only dynamic calls to your application logic would be routed to North > >> > America. If you follow these rules, websites should still load quickly > - > >> > there is a fairly large App Engine community in Japan. > >> > > >> > -- > >> > Ikai Lan > >> > Developer Programs Engineer, Google App Engine > >> > plus.ikailan.com | twitter.com/ikai > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > On Tue, Aug 2, 2011 at 3:30 AM, Simon Knott <[email protected]> > >> wrote: > >> > > Hi, > >> > > >> > > As far as I'm aware, the most accurate information the Google staff > >> have > >> > > divulged is that all data centres are located in North America > >> somewhere. > >> > > >> > > Cheers, > >> > > Simon > >> > > >> > > -- > >> > > You received this message because you are subscribed to the Google > >> Groups > >> > > "Google App Engine" group. > >> > > To view this discussion on the web visit > >> > >https://groups.google.com/d/msg/google-appengine/-/OvHwAZFC9aYJ. > >> > > >> > > To post to this group, send email to > [email protected] > >> . > >> > > To unsubscribe from this group, send email to > >> > > [email protected]. > >> > > For more options, visit this group at > >> > >http://groups.google.com/group/google-appengine?hl=en. > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "Google App Engine" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group at > >> http://groups.google.com/group/google-appengine?hl=en. > >> > >> > > > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]. > > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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