On Wed, Mar 17, 2010 at 9:25 PM, firestoke <firest...@gmail.com> wrote:
> hi, > > If the latency only get 75-85ms, it surely is fine I think. > The performance I expected is that the latency should be always under > 300ms. But it always exceed 1 second from my PC testing. > So it should be common network delay from my PC to app engine server. > I am not a America user, and my PC is on Taiwan. > Yeah, this sounds like network congestion or some other kind of additional latency being imposed outside of the Google network to me, but it's hard to be sure. Just to confirm, does App engine server provide a mirror mechanism? > > Not at this time. > I will install the "Page Speed" plugin to do more testing. Thanks! :^) > Have a nice day! > > Good luck. > > On 3月18日, 上午3時03分, Don Schwarz <schwa...@google.com> wrote: > > I'm getting 304 responses for your application with about a 75-85ms > latency > > above my ping times. I've confirmed that you're using our optimized > serving > > infrastructure for static files. > > > > What kind of performance are you expecting to see? > > > > I would also try this tool: > > > > http://code.google.com/speed/page-speed/ > > > > It may have additional advice about optimizing your javascript. > > > > > > > > On Wed, Mar 17, 2010 at 9:11 AM, firestoke <firest...@gmail.com> wrote: > > > hi Don Schwarz, > > > > > My app id is "fstoke-mypage". > > > And the full url is > > >http://fstoke-mypage.appspot.com/ > > > Thanks! :^) > > > > > On 3月17日, 上午1時22分, Don Schwarz <schwa...@google.com> wrote: > > > > On Tue, Mar 16, 2010 at 8:04 AM, firestoke <firest...@gmail.com> > wrote: > > > > > hi, > > > > > > > The average ping time is as the following: > > > > > Reply from 72.14.203.141: bytes=32 time=96ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=95ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=94ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=95ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=99ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=98ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=97ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=95ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=97ms TTL=51 > > > > > Reply from 72.14.203.141: bytes=32 time=98ms TTL=51 > > > > > > Hmm, interesting. What about doing something like 'time curlhttp:// > > > yourapp.appspot.com/.../a-small-file'? > > > > > > Also, you mentioned resource files. Just to confirm, are you talking > > > about > > > > serving static files, or are you serving these files (and doing the > 304 > > > > handling) yourself with Java code? If you send me your app id > privately > > > I > > > > can double-check this for you. > > > > > > > It looks like just normal. I found the page initialize spent time > is > > > > > quite different on different browsers. > > > > > My testing behavior is always press "F5" to reload the page. The > spent > > > > > time compare is as the following: > > > > > > > Firefox 3.6 < IE 8 << Chrome 4.1 = Safari 4.04 > > > > > > > Safari & Chrome is very very very very very SLOW to initialize the > > > > > page. The average spent time is about 10~14 seconds when page > reload. > > > > > Firefox just spent 3~4 seconds to finish initialize the page. Even > IE8 > > > > > (spent 5 ~ 6 seconds) is faster than Chrome and Safari, very > > > > > strange... ( In my memory, IE should be the worst browser of them. > ) > > > > > For a normal web service, a page init time should not over 3 > seconds I > > > > > think. Any suggestions? > > > > > > Have you tried YSlow or something equivalent? That may be useful. > > > > > > > BTW, If I set billing to add "Bandwidth Out" resource will improve > the > > > > > server response time? > > > > > > No. We don't do any throttling of bandwidth. > > > > > > > The reason why I choose to deploy on Google App Engine is that I > think > > > > > the server response and performance should be extremely fast like > > > > > other Google web services. > > > > > But the result is quite different as I wonder. :((( > > > > > > > On 3月16日, 上午1時54分, Don Schwarz <schwa...@google.com> wrote: > > > > > > It looks like your files are taking about 400ms each, which may > not > > > be > > > > > that > > > > > > bad depending on where you are located relative to App Engine's > > > > > datacenters. > > > > > > What's an average ping time to your application's appspot.compage? > > > > > > > > I believe that the beige bars in the graph are time spent waiting > due > > > to > > > > > > your browser's per-host connection limit. You should try > something > > > like > > > > > > YSlow (http://developer.yahoo.com/yslow/) for advice on how to > > > > > concatenate > > > > > > CSS and JS files, merge images, etc. > > > > > > > > On Mon, Mar 15, 2010 at 7:43 AM, firestoke <firest...@gmail.com> > > > wrote: > > > > > > > hi, > > > > > > > > > I write a HTML page that use many jQuery plugins and AJAX call. > And > > > I > > > > > > > import many css and js files in this page. After I deploy it on > > > Google > > > > > > > App Engine server and testing. > > > > > > > It's terrible slow when page initialize. See this firebug > > > screenshot, > > > > > > > you will know what I am talking about. > > > > >http://picasaweb.google.com/davidhung168/UntitledAlbum#54488373827239. > > > > > .. > > > > > > > > > is it because the Java version of app engine still on BETA? > > > > > > > BTW, I didn't use billing yet. > > > > > > > > > -- > > > > > > > You received this message because you are subscribed to the > Google > > > > > Groups > > > > > > > "Google App Engine for Java" group. > > > > > > > To post to this group, send email to > > > > > > > google-appengine-j...@googlegroups.com. > > > > > > > To unsubscribe from this group, send email to > > > > > > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com><google-appengine-java%2B > unsubscr...@googlegroups.com><google-appengine-java%2B > > > unsubscr...@googlegroups.com><google-appengine-java%2B > > > > > unsubscr...@googlegroups.com> > > > > > > > . > > > > > > > For more options, visit this group at > > > > > > >http://groups.google.com/group/google-appengine-java?hl=en. > > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > > Groups > > > > > "Google App Engine for Java" group. > > > > > To post to this group, send email to > > > > > google-appengine-j...@googlegroups.com. > > > > > To unsubscribe from this group, send email to > > > > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com><google-appengine-java%2B > unsubscr...@googlegroups.com><google-appengine-java%2B > > > unsubscr...@googlegroups.com> > > > > > . > > > > > For more options, visit this group at > > > > >http://groups.google.com/group/google-appengine-java?hl=en. > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google App Engine for Java" group. > > > To post to this group, send email to > > > google-appengine-j...@googlegroups.com. > > > To unsubscribe from this group, send email to > > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com><google-appengine-java%2B > unsubscr...@googlegroups.com> > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/google-appengine-java?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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