mahara-contributors team mailing list archive

[Aaron Wells <1419399@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The Mahara dashboard page can be quite slow to load on large Mahara
sites, because it contains the "latest views" block by default, and this
block runs some pretty big queries. Removing this block improves the
rendering time of the Dashboard page considerably, and in fact removing
all the blocks makes it render even faster!

We can't remove the blocks from the pages, but we can greatly improve
the loading time of the page by simply providing placeholders for the
blocks, and then loading the block contents with further AJAX requests.
This will reduce the time before the user sees *something* on screen,
and it will also reduce the time to get the whole page loaded, because
the blocks can be generated in parallel instead of serially.

** Affects: mahara
     Importance: Wishlist
     Assignee: Aaron Wells (u-aaronw)
         Status: In Progress


** Tags: blocktypes performance

** Changed in: mahara
   Importance: Undecided => Wishlist

** Changed in: mahara
       Status: New => In Progress

** Changed in: mahara
     Assignee: (unassigned) => Aaron Wells (u-aaronw)

** Changed in: mahara
    Milestone: None => 15.04.0

** Tags added: blocktypes performance

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https://bugs.launchpad.net/bugs/1419399

Title:
  Improve page rendering speed by loading block contents via AJAX

Status in Mahara ePortfolio:
  In Progress

Bug description:
  The Mahara dashboard page can be quite slow to load on large Mahara
  sites, because it contains the "latest views" block by default, and
  this block runs some pretty big queries. Removing this block improves
  the rendering time of the Dashboard page considerably, and in fact
  removing all the blocks makes it render even faster!

  We can't remove the blocks from the pages, but we can greatly improve
  the loading time of the page by simply providing placeholders for the
  blocks, and then loading the block contents with further AJAX
  requests. This will reduce the time before the user sees *something*
  on screen, and it will also reduce the time to get the whole page
  loaded, because the blocks can be generated in parallel instead of
  serially.

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