[appengine-java] How to separate duration of cold-start time from user-code-time via Appstats?

So I've set up appstats, and I tend to see the following picture: The entire request took around 5 seconds, there are some RPC call bars that add up to around 2 seconds, and the rest of the request time is simply empty space in the timeline. Can I safely assume that all the empty space before the

[appengine-java] How to separate duration of cold-start time from user-code-time via Appstats?

So I've set up appstats, and I tend to see the following picture: The entire request took around 5 seconds, there are some RPC call bars that add up to around 2 seconds, and the rest of the request time is simply empty space in the timeline. Can I safely assume that all the empty space before the