Threaded Region Crossing pile-on test

I’ve been covering the upcoming improvements to region crossings – referred to as threaded region crossings – in my weekly SL project reports.

During the Server Beta meeting on the 13th December 2012, the subject came up for brief discussion, during which I suggested to Caleb Linden (who is heading-up the work) that perhaps a pile-on test would be an idea.

I’ve no idea if he read my suggestion, or was already planning to go ahead with such a test, but on Monday 17th December, 2012, he posted an announcement of just such a test to the Server thread of the TEchnology forums. The announcement reads in full:

In an upcoming server build, Linden Lab has changed the way agents and their attachments get carried over in the event of a region crossing. And we need your help to test region crossing in a pile-on fashion.

On Wednesday, December 19th at 16:00 PDT (Pacific Daylight Time) please join IRC (EFNET -> #sltest) to launch Second Life and join us via the following SLurl GC Test 9

The details of the tests are here

https://wiki.secondlife.com/wiki/Threaded_Region_Crossing_Beta_Tests

In the meantime, please let us know if you need access the test regions mentioned on the wiki or have additional questions.

How the tests will be carried out, and on the wiki page, Caleb invites suggestions to be e-mailed / forwarded to him. Currently, ideas for testing include:

  • Region crossing with regular avatar
  • Region crossing via manual TP
  • Region crossing on a vehicle (including Mesh based vehicles)
  • Region crossing while sitting on moving objects
  • Region crossing via scripted TP
  • Region crossing with attachments of varying sizes (including complex HUDs)

Issues have already been found with the new code when wearing script heavy objects during a region crossing and with repeated region crossings on vehicles, and the pile-on test looks in part to be a further investigation of these issues, as well as testing for other possible problems.

Note that this test will be on the beta Aditi grid, so you will need to be able to access that grid. If you haven’t done so in a while, you may want to check your ability to log-in, given recent issues. Also, as this is server-side code tests, it should not be required that you use a specific viewer, but keep an eye on the forum thread in case a decision is made to use a particular viewer.

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