playframework - Identify why Google app engine is slow -

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i developed application client uses play framework 1.x , runs on gae. app works great, crazy slow. takes around 30 seconds load simple page runs faster - no code change whatsoever.

are there way identify why it's running slow? tried contact support couldnt find telephone number or email. there no response on official google group.

how approach problem? customer angry because of slow loading time, switching other provider last option @ moment.

use gae appstats profile remote procedure calls. of rpcs slow (google cloud storage, google cloud sql, ...), if can reduce amount of rpcs or can use caching datastructures, use them -> application faster. can see appstats parts slow , if need attention :) .

for example, i've created google cloud storage cache application , decreased execution time 2 minutes under 30 seconds. rpcs bottleneck in gae.


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