Threaded Region Crossing Beta Tests

Introduction

In an upcoming server build, Linden Lab has added background serialization of agents and their attachments on region crossing. What has happened in the past is that when you leave a region, there was a main thread stall caused by the serialization of the avatar and it's attachments which caused a 300% spike in frame time. With added background serialization there shouldn't be such frame time spike.

Prequisites

Direct login to test regions

1. Ensure that you have access to the test regions listed in 'Test Setup on Aditi' below
2. Ensure that you can rez objects and run scripts

Fails if This test fails if the tester is unable to log-in directly to the target location. Please alert Caleb. Also, please have Help -> About Second Life info copied to clipboard to send to LL staff upon request.

IRC Connection

We will be coordinating tasks via IRC, so please join us on EFNet in the channel #sltest

1. On December 19th at 16:00 PDT (Pacific Daylight Time) please join IRC to launch Second Life and join us via the following SLurl GC Test 9.

Test Setup on Aditi

Regions with Background Serialization turned OFF (Unthreaded) can be identified by its channel name: 'DRTSIM-184 Unthreaded' The terrain is marked with a blue water texture.

1. GC Test 2
2. GC Test 8

Regions with Background Serialization turned ON (Threaded) can be identified by its channel name: 'DRTSIM-184 Threaded' The terrain is marked with a brown texture.

1. GC Test 9
2. GC Test 15
3. GC Test 10
4. GC Test 16

Testing Ideas

Please, free to expand on the following basic Region Crossing test ideas. For additional suggestions, please mail Caleb.

1. Region crossing with regular avatar
2. Region crossing via manual TP
3. Region crossing on a vehicle (including Mesh based vehicles)
4. Region crossing while sitting on moving objects
5. Region crossing via scripted TP
6. Region crossing with attachments of varying sizes (including complex HUDs)

In the early stages of Region Crossing testing issues have been found by:

1. wearing script heavy objects
2. repeated crossing on vehicles

Community Beta Tests

#1 Non-Threaded Region Crossings

Please refer to 'Testing Ideas' to examine region crossing between

1. GC Test 2 ('DRTSIM-184 Unthreaded')
2. GC Test 8 ('DRTSIM-184 Unthreaded')

#2 Threaded Region Crossings

Please refer to 'Testing Ideas' to examine region crossing between

1. GC Test 9 ('DRTSIM-184 Threaded')
2. GC Test 15 ('DRTSIM-184 Threaded')
3. GC Test 10 ('DRTSIM-184 Threaded')
4. GC Test 16 ('DRTSIM-184 Threaded')

#3 Threaded Region to/from Non-Threaded Region Crossings

Please refer to 'Testing Ideas' to examine region crossing between

1. GC Test 2 ('DRTSIM-184 Unthreaded')
2. GC Test 8 ('DRTSIM-184 Unthreaded')
3. GC Test 9 ('DRTSIM-184 Threaded')
4. GC Test 15 ('DRTSIM-184 Threaded')
5. GC Test 10 ('DRTSIM-184 Threaded')
6. GC Test 16 ('DRTSIM-184 Threaded')

#4 Threaded Region to/from Server-Trunk Crossings

Please refer to 'Testing Ideas' to examine region crossing between

1. GC Test 3 ('Second Life Server')
2. GC Test 9 ('DRTSIM-184 Threaded')
3. GC Test 15 ('DRTSIM-184 Threaded')
4. GC Test 10 ('DRTSIM-184 Threaded')
5. GC Test 16 ('DRTSIM-184 Threaded')