Did you expand the logs to see if any of those were cold starts? I'm guessing that the higher CPU ones were newly created instances. And, or all of the runs were cold starts.. since doing imports on cold start can be all over the place for CPU MS usage. (Though, the recent datastore maintenance seems to have made this performance better.)
What is the page importing when it runs? On Wed, Nov 10, 2010 at 2:14 PM, Steve <unetright.thebas...@xoxy.net> wrote: > Hi, > > I've been trying to understand how CPU usage is calculated / billed. > Because I could not correlate the amounts consumed with what I > expected, I set up a special handler which just returns a 200 > response, nothing else. I then set up a cron job to call that special > url every couple minutes. > > As an example, the cron called the URL 5 consecutive times. During > that time no other users were using this application. I also checked > each call and none of them indicated that they were responsible for > starting a new instance. Across these I had an average 102cpu_ms > consumed with a staggeringly high standard deviation of 100cpu_ms. > > You can see the actual calls from my log here: > http://oi53.tinypic.com/694c40.jpg > > Google, are you actually measuring my CPU usage per call? Or are you > doing something like the water department where you only measure the > total consumed every X number of calls and just sort of guess the ones > in between? > > --Steve > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to google-appeng...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com<google-appengine%2bunsubscr...@googlegroups.com> > . > 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 google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
