It does run lighter than before. It is noticeably faster f.e. when opening folders in Explorer or Xnview. There are numerous reports of users reporting it runs lighter.
The engine is the same but has code has been rewritten and new C++ has been used:
vladimir.semenov post:37:
Hi Eric,
[i]
How much of the stability fixes are coming from the built in reporting feature of CIS[/i]
I can’t tell exact numbers, but their share is pretty tangible.
>> The performance improvement also influence the UI which responds faster and lost its sluggishness. Were there changes made to the UI framework or are the improvements a result of the general improvement of performance?
UI framework is not changed, it is the result of general performance fixes, unrecognized items handling improvement and optimization of interaction between CIS components.
Performance improvements can be divided on several branches:
Improvements based on fixes of issues found and reported by forum users (especially by Pixo1, Megahertz, Ploget and you) - their specific environment highlighted several hidden issues which are basically invisible on “regular” environment, but still affect performance. Mostly all of them are about communication between CIS components.
Improvements based on code refactoring, new C++ standard benefits
Optimization of unrecognized items handling (especially noticeable when widget is enabled).
As for updated engine:
>> Is there a change how the AV engine handles things?
Externally - not so much, for other CIS components it is almost the same engine. Mostly changes are under the hood: script scanner performance is significantly improved, also we’ve added support of various unpackers, etc.
>>Were binaries codes more efficiently?
Yes, we’ve integrated new C++ standard with it’s benefits, performed refactoring.
[i]
Was a different compiler used?[/i]
No.