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Bug #39727
closedBug #36744: Workspaces are unusable on larger installations
Calculating percentage of differences is slow
Status:
Rejected
Priority:
Should have
Assignee:
Category:
Workspaces
Target version:
Start date:
2012-08-12
Due date:
% Done:
100%
Estimated time:
TYPO3 Version:
4.5
PHP Version:
Tags:
Complexity:
Is Regression:
Sprint Focus:
Description
The workspace view in the backend has a feature to calculate the percentage of differences between live and workspace version.
This implementation iterates over each record and each field by using the PHP method similar_text().
The complexity of similar_text() is measured with O(n^3) which quickly can turn into a nice waiting period if string length is more than approx 4000 characters.
- use a different approach if string length is more than 2048 or 4096 characters
- remove MD5 sums on files which also can turn out in a nice waiting period
- do not resolve fields that hold m:n relations to reduce tree complexity and database queries
Maybe disable this feature in newer versions at all or us a simple MD5 based comparison of the field contents which reads then "n% of the all fields have been modified".
Updated by Oliver Hader about 12 years ago
- Target version set to 6.0.0-pre-beta1
Updated by Oliver Hader about 12 years ago
- Status changed from New to Rejected
Due to issue #35172 - the feature already was kicked in TYPO3 6.0
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