What are these logging metrics?

gholler

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Sep 9, 2010, 1:42:52 PM9/9/10

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Hi All,
We've been doing some performance testing with our app using JMeter
and looking at our logs.
If you expand a web call's log messages, at the top you see a bunch of
metrics, e.g. ms=1332 cpu_ms=822 api_cpu_ms=86 cpm_usd=0.024510
Sometimes I see a metric 'pending_ms' but I can't find a definition
anywhere.
I assume it's some kind of latency. In the call I looked at all the
logging messages occurred in the course of 300ms but there was a
pending_ms=9800, so the reporting ms time was over 10 seconds. In
this call there was no cold startup, I've also noticed a
loading_request=1 when a request initiates a cold startup.
I've also seen a metric, or flag, called throttle_code, that would be
nice to understand.

Anybody know what these are or where they are defined?

Thanks,
George Holler

gholler

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Sep 16, 2010, 10:24:35 AM9/16/10

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Anyone see any documentation on this?

Francois Masurel

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Sep 16, 2010, 2:45:38 PM9/16/10

to Google App Engine

Yep same question : what is pending_ms ?

I got these kind of logs today when displaying a really small gif
image :

ms=993 cpu_ms=36 api_cpu_ms=17 cpm_usd=0.001223 pending_ms=854