[TYPO3-performance] Deleting pages in Backend extremely slow

[Steffen Gebert]

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Hi Andrea,

get a profiler and find out, what takes so much time.
See e.g.
buzz.typo3.org/people/steffen-gebert/article/profiling-typo3-with-xhprof/

It could be cache invalidation from what you describe.

Kind regards
Steffen

- -- 
Steffen Gebert
TYPO3 CMS Core Team Member
TYPO3 Server Administration Team Member

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On 10/4/12 11:26 AM, abo at schmutt.de wrote:
> 
> Hello,
> 
> I have a very special performance problem in a big typo3 (>100.000
> pages) installation, version 4.5.4:
> 
> Deleting of pages is extremly slow: >30sec,
> Often backend completely timed out. I get then this red overlay, I think
> it is some kind of timeout:
> Connection Problem
> Sorry, but an error occurred while connecting to the server. Please
> check your network connection.
> 
> Other page operations like create, move, edit, rename are OK.
> Well, not fast but OK, Firebug shows between 500ms and 3,5s.
> 
> Database is OK, mysql slow requests doesn't show anything.
> PHP Memory limit is on 256M on dev server, and 512M on live server, both
> have this problem
> Deprecation log is OK
> 
> You can help me, if you know anything to catch that bug.
> Is there any logging, performance tool for the backend? If you can tell
> me where the "delete pages" code is running, I can add some debug
> messages by myself.
> 
> As the server is usually OK, there must be any stupid thing, extension
> or someting starting lots of requests when deleting pages. Actually we
> have solr under suspicion, but we can't find anything atm.
> 
> Or if you have any other idea, let me know!
> 
> Thanks,
> Andrea Schmuttermair
> 
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