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  • Bo Jacobsen 610 posts 2409 karma points
    Feb 27, 2017 @ 08:53
    Bo Jacobsen
    0

    Umbraco backend load speed gets slower over time

    Using Umbraco version 7.5.7.

    Our user experience that the Umbraco Backoffice gets slower the longer its in use. If the user relog then its back to normal speed.

    Can it be memory specific? Or browser specific? Or a third option?

    Can i set the allowed memory usage somewhere? Or do anyone have a better idear of whats going on?

    The only ERROR OR WARN there is in the log. Is a SEOchecker error getting the media history as shown. (I dont think that what makes it slow..)

    ERROR SEOChecker.Events.UrlHistoryEventHandler - SEOChecker: Error getting media history
    System.NullReferenceException: Object reference not set to an instance of an object.
       at SEOChecker.Events.UrlHistoryEventHandler.(IMedia )
       at SEOChecker.Events.UrlHistoryEventHandler.(IMediaService , SaveEventArgs`1 )
    
  • Bo Jacobsen 610 posts 2409 karma points
    Feb 28, 2017 @ 10:46
    Bo Jacobsen
    0

    After some more testing... I can now say that a relog do NOT help. And the slow load speed is somehow due to the browsers memory usage. Reopen the browser help, since it clears the memory used.

    Can i do anything about that?

  • Paul Wright (suedeapple) 277 posts 704 karma points
    Feb 28, 2017 @ 11:42
    Paul Wright (suedeapple)
    0

    I hit a similar problem with a large site I was working on, where the "Meta Tags" field, was being powered by a "tags" property type

    Turned out to be related to the TEMP Storage , used by the browser, and how the AutoComplete JS works in Umbraco.

    I think in Chrome and Firefox the HTML Temp Storage Limit is 5MB (Which can be increased, via the browser config). But this didnt remedy the slowness, it just meant Umbraco could stuff in more data to churn through)

    The "Tags" property type, which was stuffing the TEMP storage. The more nodes you viewed, the more data got stuffed in there, to be used by the AutoComplete.

    My only solution/option. Was to swap out the "tags" property type (which was being used for metatags), for a textarea field.

  • Bo Jacobsen 610 posts 2409 karma points
    Feb 28, 2017 @ 12:39
    Bo Jacobsen
    0

    We do not use the Tags Datatype anywhere in our solution.

    Do you have any other idear?

  • Paul Wright (suedeapple) 277 posts 704 karma points
    Feb 28, 2017 @ 13:05
    Paul Wright (suedeapple)
    0

    Use Chrome Dev tools, and you can drill down on the HTML5 Data storage, and see what it contains, and what's populating it.

    That's how I came across the above issue.

  • Bo Jacobsen 610 posts 2409 karma points
    Feb 28, 2017 @ 14:05
    Bo Jacobsen
    0

    I will try and keep an eye out there. Thanks!

  • Bo Jacobsen 610 posts 2409 karma points
    Mar 01, 2017 @ 13:00
    Bo Jacobsen
    0

    Just to be clear. You are taking about the storage in the Application tab right?

    enter image description here

    There is only content in Cookies. Where i found UMB_UCONTEXT at a size of 1292B. But when i reopen the browser its still the same size, but normal load speed again.

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