Difference between revisions of "Server Beta User Group"

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=== Updates ===
=== Updates ===
* The main channel got the maintenance project which was previously on all three RCs
* No updates to the main channel happened this week
** [[Release_Notes/Second_Life_Server/14#]]
* RC BlueSteel is joining the CDN project
** It fixes a bug related to viewing parcel details in skill gaming regions
** This is the same version that Snack has
* No rolls for RC BlueSteel, RC LeTigre, or RC Magnum is getting the same update as BlueSteel and LeTigre.
** [[Release_Notes/Second_Life_RC_BlueSteel/14#]]
** [[Release_Notes/Second_Life_RC_Magnum/14#]]
* RC LeTigre and RC Magnum are getting a new maintenance project
* RC Snack still has the CDN [[#Texture And Mesh Fetch Testing]] project
** [[Release_Notes/Second_Life_RC_LeTigre/14#]]
** This week's update was to include the changes that went to the main channel
** [[Release_Notes/Second_Life_RC_Magnum/14#]]
** [[Release_Notes/Second_Life_RC_Snack/14#]]
* RC Snack still has the CDN project (no roll)
** The channel has grown to ~270 regions total now, mostly mainland
* Simon's group chat changes is still in the process of being deployed
*** If you own a region and would like to have it moved to the RC Snack channel for CDN testing, please email [mailto:cdn-test@lindenlab.com cdn-test@lindenlab.com]
* Simon's group chat changes is now in the process of being deployed
** We expect it to be fully out by sometime next week
==== Texture And Mesh Fetch Testing ====
==== Texture And Mesh Fetch Testing ====

Revision as of 14:40, 16 October 2014

This is the meeting tracking and progress page for the weekly Server BETA QA Meeting, moderated by Maestro Linden. Please contact him on AGNI for more information. You can join the Second Life Beta group for updates.

The next meeting is Thursday, October 16 2014, 3PM PDT at MorrisD on the preview grid, ADITI.



Texture And Mesh Fetch Testing

  • A new texture/mesh asset fetching service is up on Agni and Aditi for testing
    • No special viewer support required (works with the Second Life 3.7.14 release viewer
    • Sims which use this service have the viewer fetch meshes and textures from a CDN, rather than through the sim host
    • This is accomplished by changing the URLs the viewer receives for GetMesh, GetMesh2, and GetTexture capabilities
    • The advantage of this approach is twofold
      • The sim isn’t burdened with texture and mesh asset requests
      • The CDN is globally distributed, so viewers located far away from the sim host will enjoy faster speeds (due to lower latency) when fetching these assets
    • This service is live on Agni now, in the “Second Life RC Snack” channel
      • A few privately-owned regions are on this RC
      • A few Linden-owned regions are also on this RC
        • Denby
        • Hippo Hollow
        • Hippotropolis
        • Testylvania Sandbox
    • This service is live on Aditi now, in the “DRTSIM-258” channel
      • Region “TextureTest CDN” on DRTSIM-258 contains about 5650 textures to download, when viewed from the parcel TP location with 512m draw distance
      • Region “MeshTest2H” on DRTSIM-258 contains about 5170 meshes to download, when viewed from the parcel TP location with 512m draw distance
      • For comparison, regions “MeshTest2” and “TextureTest SLS” on the “Second Life Server” channel have the same content but use the ‘classic’ asset fetching method
    • Performance results thus far
      • Maestro and April ran some benchmarks from the office
        • In the mesh test regions,
          • On DRTSIM-258 (using the CDN), all the meshes are fetched very consistently, within ~51 seconds
          • On SLS (not using the CDN), mesh fetch time averages ~78 seconds, with varied results
        • In the texture test regions,
          • On DRTSIM-258 (using the CDN), texture fetch time is about 43 seconds
          • On SLS (not using the CDN), texture fetch time is about 105 seconds
      • Early results from Europe are also very promising (appear to show about a 2x speedup in loading time with the CDN, compared to without)
      • Recommended test setup
        • Clear cache prior to test (deleting the viewer’s cache folder is a pretty convenient method)
        • Do a preliminary run before benchmarking to 'warm' the cache (applies to both CDN and simhost texture fetching)
        • Login directly to the test region
        • No other avatars around
        • Draw distance set to 512m
        • Maximum bandwidth set to 10000kbps
        • Viewer always kept in focus (otherwise FPS is capped at ~20fps, possibly affecting fetch performance)
        • Don’t touch the camera
        • For mesh benchmarking, we used the 'Mesh Download Quiescent' message in the viewer log. This message triggers when the viewer has fetched all the meshes it wants, and prints the fetch start and stop times (used to compute duration)
        • For texture benchmarking, we used time from hitting the ‘login’ button until the time until the texture console (Develop -> Consoles -> Texture Console) indicated that 0 textures were remaining to be fetched, with “Fetch 0(0)”
          • Because of the delay involved when logging in, this texture fetch benchmark is much less precise than what we have for meshes
    • Feel free to try it for yourselves! (please be gentle..)

Interesting Stuff

  • Monty is here to talk about upcoming project drano changes
    • A new viewer is in testing, and may hit RC soon
    • It's better in various ways (Monty to explain)
    • You can download the test viewer here (Danger! Experimental!)

Any Other Items

Open Items

Minutes from Previous Meetings