Did you check the current memory utilisation of each app when you ran the test?
On 13 March 2012 08:41, Kyle Finley <[email protected]> wrote: > Has anyone noticed a dramatic difference in Cold Start times when using > different AppIDs? > > I recently changed the AppID for a project that I'm working on and there was > a noticeable reduction in the cold start time. > > Intrigued, I decided to perform an experiment: > > I loaded the application on 4 different AppIDs all of which were HRD. > Using tools.pingdom.com I loaded the home page for each of the AppIDs using > the http://*.appspot.com domain and recorded wait (yellow bar) time for the > HTML page. > I, then, shutdown each of the instance and repeated the test. > > In this limited sample the fasted AppID loaded the application in an average > of 1.35 secs, while the slowest averaged 3.55 secs > > The Application is using: > runtime: python27 > threadsafe: false > > I also performed the test on warm instances, but the results did not seem to > indicate a correlation. > > I also tested the fasted and slowest AppIDs with a similar application > written in Go, where AppID did not effect the cold start times. > > A little more information on the AppIDs: > > The fasted AppID was created yesterday > The slowest was created many months ago. > The slowest AppIDs were also the ones containing a dash(-), but that's > probably just a coincidence. > > Is this slowness due to older hardware, or is this somehow related to the > python27 runtime? > > Can anything be done for these slow AppIDs? Is it best just to delete them? > > > Thanks, > > > - Kyle > > > https://docs.google.com/spreadsheet/ccc?key=0Apr2o_vtfYo3dFNPMDQ2ZHU1T2ZwcmJIOHNQYU9EWXc > > -- > 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/-/CH89M2Tb9ekJ. > 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.
