It depends on what language and framework you use, and how many module you import. In my app, the loading request normally takes less than 500ms and no pending time.
---------- keakon My blog(Chinese): www.keakon.net Blog source code: https://bitbucket.org/keakon/doodle/ On Fri, Dec 24, 2010 at 7:19 PM, Matija <[email protected]> wrote: > I tested some UI enhancement (loading state 'hack' in current > gwt celltable version) in case of cold start so that app user knows what is > going on. To test 'cold start' I waited for every instance to stop (it would > be nice feature to be able to stop them manually from dashboard) and then > did some UI action in gwt application. > > First I noticed that latency is much higher than expected for our request > cold start. Instead of around 5000ms it was several times higher. Then I > looked into a log and noticed pending_ms time for cold start and it happened > before. > > If you look at my gae > log<http://picasaweb.google.com/matija.jerkovic/GAEStrangeColdStart?authkey=Gv1sRgCNaa1IPpsuz-8AE#5554200338544678018> > you > can see that latency was 20480ms with 4815 cpu ms and pending_ms=9795, but > this request appstat > data<http://picasaweb.google.com/matija.jerkovic/GAEStrangeColdStart?authkey=Gv1sRgCNaa1IPpsuz-8AE#5554200339962305794> > has > event more strange data. What is now real 6255 ms ? > > I assume that math behind this numbers is: > 20480 = 9750 + 6255 + 4815 - 340 ms (as part of regular non-cold start > request cpu usage, because 4815 includes it with cold start initialization > ) > > Can somebody explain me this numbers and why my cold start request has > pending_ms time if this is first instance creation and there was no other > activity ? > > -- > 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]<google-appengine%[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.
