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. Just to confirm, does App engine server provide a mirror mechanism?
I will install the "Page Speed" plugin to do more testing. Thanks! :^) Have a nice day! 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.com page? > > > > > > 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%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%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%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. 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