Here's an example of what I mean by those metrics being inversely proportional. Each of these tasks are doing the identical work and ran two minutes apart.
08-12 01:42PM 11.860 /crawl/prefetch/03 200 6227ms 108803cpu_ms 107111api_cpu_ms 08-12 01:39PM 47.970 /crawl/prefetch/03 200 23846ms 25655cpu_ms 23770 api_cpu_ms The following are my measurements using the quota package and they represent the end-to-end quota times inside my handler for these respective calls... 08-12 01:42PM 18.056 total CPU cycles 5584, total API cycles 128534 08-12 01:40PM 11.517 total CPU cycles 4132, total API cycles 28524 >From an analysis perspective, I have two challenges: 1. I cannot reconcile the wall clock time for these slow requests 2. I cannot trust the metrics from the quota package since I can't see clarity about what they actually represent On Aug 12, 12:55 pm, Greg Tracy <[email protected]> wrote: > In fact, there may even be a bug... I see that the cpu_ms and > api_cpu_ms numbers are inversely proportional to the wall clock times > in the log. > > I can't make heads or tails from the existing reporting tools. Please > save me from this insanity... :) > > On Aug 12, 12:27 pm, Greg Tracy <[email protected]> wrote: > > > > > Excellent... Now how do I reconcile the times reported by the quota > > package with the "cpu_ms" and "api_cpu_ms" times reported in the log? > > > They don't appear to be the same. > > > On Aug 12, 10:50 am, "Nick Johnson (Google)" <[email protected]> > > wrote: > > > > Hi Greg, > > > > On Thu, Aug 12, 2010 at 4:36 PM, Greg Tracy <[email protected]> wrote: > > > > > Is the billable "CPU Time" quota a combination of the "cpu_ms" cycles > > > > and the "api_cpu_ms" cycles (as seen in the log file)? > > > > Yes. > > > > > And if this is the case, can I assume that "cpu_ms" is measuring the > > > > time my code is executing - unblocked from remote calls? > > > > Yes. > > > > -Nick Johnson > > > > > -- > > > > 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]<google-appengine%2Bunsubscrib > > > > [email protected]> > > > > . > > > > For more options, visit this group at > > > >http://groups.google.com/group/google-appengine?hl=en. > > > > -- > > > Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. > > > :: > > > Registered in Dublin, Ireland, Registration Number: 368047 > > > Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: > > > 368047 -- 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.
