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Key: CORE-3941
Type: Bug Bug
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Adriano dos Santos Fernandes
Reporter: Adriano dos Santos Fernandes
Votes: 0
Watchers: 1
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Firebird Core

Memory alignment problem with unique expression index

Created: 27/Sep/12 03:28 PM   Updated: 23/Apr/13 02:05 PM
Component/s: None
Affects Version/s: 3.0 Initial, 2.5.0, 2.5.1
Fix Version/s: 3.0 Alpha 1

Time Tracking:
Not Specified

Planning Status: Unspecified


 Description  « Hide
A memory aligment problem may cause slow performance on x86/amd64 and malfunction in others architectures.

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Vlad Khorsun added a comment - 28/Sep/12 08:12 AM
Why not backport it into 2.5.3\2.1.6 ?

Adriano dos Santos Fernandes added a comment - 29/Sep/12 07:58 PM
1) The issue was reported by nobody. I just saw it reading the code.
2) It may not even exist in real world. In my test, the variable was correctly aligned on the stack.
3) It's not a severe problem on x86. If nobody from others platforms reported it, it means nobody is using it or the compiler aligned it correctly.