Nick... I'm using the wall clock time reported in the logs. This isn't something I'm measuring myself. Isn't that the number right after the return code (200)?
I'd love to find the documentation for the quota package. It's something I've been looking for for a long time. I've never seen it anywhere. :) Thanks. On Aug 13, 8:09 am, "Nick Johnson (Google)" <[email protected]> wrote: > Hi Greg, > > > > > > On Thu, Aug 12, 2010 at 10:14 PM, Greg Tracy <[email protected]> wrote: > > 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 > > How are you measuring the wall clock times? > > > 2. I cannot trust the metrics from the quota package since I can't see > > clarity about what they actually represent > > You're comparing milliseconds on the one hand to CPU megacycles on the > other. The quota package contains functions to convert between the two. > > -Nick Johnson > > > > > > > > > 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]><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]<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.
