GAE high request latency

[Daniel Sirota]

Hi,

I'm using GAE standard Python27, manual scaling with 5 instances, class B4 with bottle as my WSGI server.

Currently, only 2 of the instances receive requests, one of them at 40 QPS and one at 10 QPS.

90% of the requests are around 30-60 ms but the other 10% exceed 200 ms, it's critical for me to stay below 100ms.

I added logs to my handlers and even to bottle WSGI handler and in the traces, I see that sometimes it takes a request 100-300ms to get to the bottle handler.

Meaning, I lose 100-300ms even before bottle or my code is invoked.

How can I improve it so all my requests will be around 50ms?

Thanks!

[Stefano Ciccarelli]

If you're using the Standard Environment I suggest you to switch to the Flexible Environment.

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Stefano Ciccarelli 
GAE Application Division 
/ Director 
stefano.c...@mmbsoftware.it 

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[Daniel Sirota]

I tried, but each deploy takes around 8-10 minutes, which is a deal breaker for me (compared to the 20 seconds of the standard environment).