[GitHub] [james-project] chibenwa opened a new pull request #435: [PERFORMANCE] Various small enhancements detected thanks to flame graphs

Sun, 16 May 2021 03:53:01 -0700 


chibenwa opened a new pull request #435:
URL: https://github.com/apache/james-project/pull/435


   ![Screenshot from 2021-05-16 
17-45-01](https://user-images.githubusercontent.com/6928740/118394413-cb653f00-b66e-11eb-9ee2-161407da0c6c.png)
   
   Here we can see a call to `MessageResultImpl::getMessageId` responsible of 
`0.78%` of the total allocated memory... Rationals are that and intermediate 
(uneeded) on the fly messageMetadata is used, which includes an (innefficient) 
flag copy.
   
   ![Screenshot from 2021-05-16 
17-51-05](https://user-images.githubusercontent.com/6928740/118394515-59412a00-b66f-11eb-86ae-6a40b240ebbc.png)
   
   Here is a flame graph capture showing the costs of initializing JMAP routes 
for each requests.


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