Use a fetch from one thread to another.
Echo Time
Fetch
Echo Time
Do something
Echo Time
Echo Fetch
Now you have a timeline of everything except the latency from User to
Appengine.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Nicholas Verne
Sent: Monday, June 20, 2011 6:03 PM
To: [email protected]
Subject: Re: [google-appengine] Why a big difference between execution time
and response time?
Yes, that's true. If you try this:
task_t0 = None
...
def main(argv):
global task_t0
task_t0 = time.time()
You'll get a measurement per request as early as we can make it. For warming
requests, it might still be worth measuring the import time
import time
import_start = time.time()
... other imports
import_duration = time.time() - import_start
The import_duration global should persist and tell you how long this
instance's imports took to process. Subsequent requests on that instance
don't do the imports.
Nick Verne
On Tue, Jun 21, 2011 at 10:49 AM, Waleed Abdulla <[email protected]> wrote:
>> A more useful measurement might be to set task_t0 as a global
>> variable at the top of your file, with only the import of "time"
>> preceding it
>
> Wouldn't that cause the 2nd, 3rd, ...nth requests to the same handler
> to show wrong values? I see why setting task_t0 at the top of the file
> would apply if it was the first request that causes the handler to be
> loaded. But this is happening on an ongoing basis for all requests,
> not only the first for that handler.
>
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