On Saturday, February 22, 2014 2:04:44 PM UTC+8, Vinny P wrote:
>
> On Fri, Feb 21, 2014 at 12:22 PM, Rafael <[email protected] <javascript:>>
>  wrote:
>
>> The scheduler logic 
>>
>
>
> Regarding the scheduler, this is my favorite thread regarding the subject: 
> https://groups.google.com/d/msg/google-appengine/sA3o-PTAckc/T2eA64xZ1m0J 
>
> It's a bit long (over 100+ posts) but it has some interesting discussion.
>

After the reading, I replaced my app settings from 

min_idle_instances=1 , max_idle_instances = 1 and min_pending_latency = 3s

to

min_idle_instances=automatic, max_idle_instances = 1 and 
min_pending_latency = 3s

Surprisingly, almost all requests are handled faster. 
For the old settings, most request handling time is longer than 0.5s.
But with the new settings, the handling time is about 0.3s.
And the most important, now there is always no resident instance, only one 
dynamic instance there.

What is the hell? A settings looks less powerful and less cost gets a 
better performance?
 

>  
>   
> -----------------
> -Vinny P
> Technology & Media Advisor
> Chicago, IL
>
> App Engine Code Samples: http://www.learntogoogleit.com
>  

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