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Why is my Blog so slow?

5 posts, 0 answered
  1. Jess Askey
    Jess Askey avatar
    20 posts
    Registered:
    25 Feb 2010
    01 Mar 2012
    Link to this post
    Hi Everyone....

    We have  a somewhat complicated site but our blog page is horrendously slow. Typically it takes about 20-30 seconds just for the server to start the response.

    It isn't a matter of the assets on the page being large either, it takes that amount of time for the server response to even begin. When I monitor both the web server and the database server, neither really show any huge impact if any (CPU or memory) and networking utilization is normal as well. Additionally, this happens in single request load conditions (late at night) and becomes hugely problematic if we get dozens of requests at a time.

    Im Sitefinity 3.7 sp4 on a Server 2008 R2 box under IIS7.5... Database box is SQL 2008 R2. Both are multi core, with at least 3-4G of RAM.

    I have page cache turned on in the page properties but that only helps on second request (which is around 3 seconds).

    Try it out and see....

    http://www.newbelgium.com/Community/Blog.aspx?skiplpa=1

    I can strip it out of all the other content and just use the bare BLOG post sitefiniity control but that doesn't seem to help at all.

    No errors in EventLog or Sitefinity.log

    I have modified the Blog page templates, but not hugely in any way as you can see. Our blog has about 334 posts in total of all time, but I have the main page limited to only 3 right now just to see if that helped (it didn't).

    does anyone have any ideas?  Thank you...
  2. Svetoslav Petsov
    Svetoslav Petsov avatar
    456 posts
    Registered:
    24 Sep 2012
    05 Mar 2012
    Link to this post
    Hello Jess,

     This seems a very odd issue. Does this happen only for this particular page and no other pages at all? Have you tried putting the blog widget on another page? Also, have you tried duplicating this page to test if the problem will reproduce?

    All the best,
    Svetoslav Petsov
    the Telerik team
    Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items
  3. Jess Askey
    Jess Askey avatar
    20 posts
    Registered:
    25 Feb 2010
    05 Mar 2012
    Link to this post
    I played around with this over the weekend and found that the Tags & Categories -> Tags List is causing the major delays... I suppose this makes sense if the Tags List needs to query and index all the blog tags. However our sf_CmsTaggedContent table only has ~2800 rows. So I can't see why this would take an excessive amount of time.

    I have taken the Tags List off the Blog page now and I will load test it to make sure the site behaves better unload load with this removed. I will report back with my results.
  4. Jess Askey
    Jess Askey avatar
    20 posts
    Registered:
    25 Feb 2010
    08 Mar 2012
    Link to this post
    Okay, after removing the Tag Cloud, the page sprang back to life. I successfully fielded about 100 requests per second without a single timeout. We don't have a huge need for the cloud, but I am wondering why it was causing so much trouble... any ideas Telerik? 

    thanks
  5. Svetoslav Petsov
    Svetoslav Petsov avatar
    456 posts
    Registered:
    24 Sep 2012
    13 Mar 2012
    Link to this post
    Hi Jess,

     Probably the taxon got broken in the database. Can you now recreate it and try using it again?

    Regards,
    Svetoslav Petsov
    the Telerik team
    Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items
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5 posts, 0 answered