On 2/5/2018 5:53 PM, Chintan Pandya wrote:


My question was trying to determine whether the numbers reported above
are for a debug configuration or a production configuration.
My reported numbers are from debug configuration.

not a production configuration, I was requesting the numbers for a
production configuration.
I'm working on it. But please expect some delay in my response for this. As I mentioned earlier, I need to work with few teams to get these numbers.


show a significant boot time reduction from the patch then there is
less justification for adding complexity to the existing code.  I
prefer to use simpler data structures and algorithms __if__ extra
complexity does not provide any advantage.  The balance between
complexity and benefits is a core software engineering issue.

Ok

Avg Kernel boot time comparison in production set up:

[0] Base: 4519ms
[1] 4115ms (~400ms improvement)
[2] 4115ms (~400ms improvement)
[3] 4177ms (~340ms improvement)

Full data:
[1] 1024 sized pre-populated cache
ITR-1   ITR-2   ITR-3   ITR-4   Avg
4115    4123    4124    4107    4115

[2] Dynamic sized cache allocation/free
ITR-1   ITR-2   ITR-3   ITR-4   Avg
4122    4131    4106    4118    4115

[3] Fixed 64 sized cache
ITR-1   ITR-2   ITR-3   ITR-4   Avg
4153    4186    4198    4181    4177


[1] is my experimental patch and dirty enough to not get merged anywhere. So, I will not push it.



Chintan
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation
Collaborative Project

Reply via email to