TYPO3 Core

Found the cause: Tx_Workspaces_Service_GridData::calculateChangePercentage() uses similar_text() to calculate the degree of difference between the content. This function is very slow for longer strings (complexity O(N**3); N is length of longest string). For some records the time needed to calculate the change percentage took several seconds. With a few hundred records in a workspace list it would easily cause a time-out.
Limiting the strings to maximum 512 chars solves the time-outs, at least until a faster function is found.

@Jigal van Hemert That should not be hard to implement. Is there any use case where displaying the percentage really matters that much, that the string length cannot be cropped?

Does it work for you with a limitation to 512 chars?

So, why is this calculation still in workspaces?
With #11585 the display of the percentage was dropped (also see http://lists.typo3.org/pipermail/typo3-team-workspace/2011-January/000184.html
So I think that this calculation is obsolete and I'm going to write a patch for this, or did I miss something?

Patch set 2 for branch master has been pushed to the review server.
It is available at http://review.typo3.org/10949

Gerrit Code Review wrote:

Patch set 2 for branch master has been pushed to the review server.
It is available at http://review.typo3.org/10949

Looks good to and works fine for me.
Fixed my issues with "connection problems".

I will report if errors/bugs occur.

Patch set 3 for branch master has been pushed to the review server.
It is available at http://review.typo3.org/10949

Sorry to revive a closed bug, but can the patch be backported to TYPO3 4.5 LTS as well?

Hey, since I need this in a 4.5 version as well, I tried to make a backport of Ingos patch and pushed it to Gerrit.

Disclaimer: It's my first backport in a submodule, I hope I've satisfied all requirements.

Thank you, tested patch on a 4.5.20 instance

Patch set 2 for branch 4.5 has been pushed to the review server.
It is available at https://review.typo3.org/17616

Patch set 1 for branch 4.6 has been pushed to the review server.
It is available at https://review.typo3.org/17931

Patch set 1 for branch workspaces_4-7 has been pushed to the review server.
It is available at https://review.typo3.org/17932

Patch set 2 for branch 4.6 has been pushed to the review server.
It is available at https://review.typo3.org/17931