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.
