2019 SL User Groups week #38/1: Simulator User Group

Isla de Sol, July 2019 – blog post

Server Deployments

Please refer to the server deployment thread for updates.

  • On Tuesday, September 17th, the SLS (Main) channel was updated with server release 2019-09-06T22:03:53.530715. Originally deployed to the Magnum RC on September 11th, it contains the fix  to address most cases of experience-enabled scripts losing association with their experience – see this blog post.
  • On Wednesday, September 18th, the RC channels are to be updated as follows:
    • BlueSteel and LeTigre should be updated with server release 2019-09-13T19:08:35.530941, comprising:
      • Internal Script Improvements – these should see further improvements in script processing, with the selected regions representing around 15% of the total grid.
      • Fixed “Avatar Sounds” feature fails to disable all scripted sounds.
      • [EEP] Smoothen transition time of llReplaceAgentEnvironment.
      • Updated to include current Second Life Server changes.
    • Magnum should be updated with server release 2019-09-13T20:04:44.530946, comprising minor improvements to starting and stopping regions and EEP updates and fixes.

SL Viewer

On Tuesday, September 17th, 2019 the following viewer updates were made:

  • The Vinsanto Maintenance RC viewer, version 6.3.2.530962.
  • The Legacy Profile project viewer was updated to version 6.3.2.530836.

On Monday, September 16th, the Ordered Shutdown RC viewer, version 6.3.2.530901, was released. This viewer has changes intended to make crashes on shut-down less likely, but does not have any changes to existing features.

At the time of writing, the rest of the current official viewer pipelines remain as follows:

  • Release channel cohorts:
  • Project viewers:
    • Project Muscatene (Animesh follow-on) project viewer, version 6.4.0.530100, August 19th.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17, 2017 and promoted to release status 29 November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

  • The Lab is “very focused” on the problem of avatars teleporting into or out of a region overpowering local performance (scripts, etc.).
    • It’s been widely assumed that the performance is due to things like overall complexity and / or script load, etc.
    • However, while both script load and avatar complexity do have a general impact on performance, LL does not believe they are responsible for the issues seen when avatars enter / leave a region.
    • Data has been gathered on the problem, and Rider Linden indicated that LL feel they have a reasonable handle on the problem and are in a position to start experimenting to verify their findings in the near future.
  • There is period of voice maintenance due on Thursday, September 19th. This involves back-end updates to the voice system.
    • It is not clear if these updates will assist those users who, when activating voice, appear to be in their own channel with just one or two other users and must relog to join the main channel with all the others on voice.
      • This is a problem LL has noted, but Vivox have been unable to determine the cause.
      • There is a voice viewer update in the works that includes additional debugging capabilities that might help with determining the problem.

 

Advertisements

2019 SL User Groups week #37/1: Simulator User Group

Natural Falls, July 2019 – blog post

Updated with the full details of the Magnum and LeTigre RC deployments

Server Deployments

Please refer to the server deployment thread for updates.

  • On Tuesday, September 10th, the SLS (Main) channel was updated with server release 2019-08-29T20:20:39.530516 – comprising “simulator component of deploy tooling and process improvements”, and previously deployed to the main RC channels in week #36.
    • This is the update that doesn’t report channel names to the viewer, so Help > About will always report the channel to be “Second Life Server” (SLS) regardless of the channel the region you are on is assigned to.
    • There is a race condition that can cause double rolls of a deployment some 2 or so hours apart. The Lab is aware of the issue and investigating the cause.
  • One Wednesday, September 11th, the main RC channels will be updated as follows:
    • BlueSteel was updated with server release 2019-09-06T18:49:52.530700, containing the simulator-side script usage improvements.
    • Magnum and LeTigre were updated with server release 2019-09-06T22:03:53.530715, containing the fix  to address most cases of experience-enabled scripts losing association with their experience.

SL Viewer

The Umeshu Maintenance RC viewer, version 6.3.1.530559 and dated September 5th, has been promoted to de facto release status. At the time of writing, the rest of the current official viewer pipelines remain as follows:

  • Release channel cohorts:
  • Project viewers:
    • Project Muscatene (Animesh follow-on) project viewer, version 6.4.0.530100, August 19.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17, 2017 and promoted to release status 29 November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

  • Group Chat: there are some reports that group chat has been improved over the last couple of weeks with less drop-outs and issues, although conversations arrived with the original post missing still appears to be an issue.
    • Oz Linden acknowledged the Lab is still tweaking on things to try and brig about improvements.
    • Simon Linden indicated that it is one of those problems where running the service on more capable hardware doesn’t always improve things – as the Lab found out in tests earlier in the year.
  • Sound file duration: a good while ago, the viewer had a change to allow 30-second sound files. However, it has been awaiting a server-side update to support it. When asked about the status of the update, Oz Linden replied:

Can’t predict now when the 30 second sound limit will happen, but it’s part of a high priority bundle of stuff, so Pretty Soon™

 

2019 SL User Groups week #36/1: Simulator User Group

Carolina, July 2019 – blog post

Server Deployments

Please refer to the server deployment thread for updates.

Apparently, as a result of Labor Day in the USA and the threat of hurricane Dorrian, there was no SLS (Main) channel deployment on Tuesday, September 2nd.

As a result, on Wednesday, September 4th, there will be deployments across the entire grid – the SLS (Main) and the primary RC channels. The order of deployments will be the SLS (Main) channel, starting 30 minutes ahead of the usual time. Once completed, and providing there are no issues, it will be followed by the RC deployments.

  • The SLS (Main) channel is to be updated with server maintenance package 19#19.08.23.530380, comprising maintenance fixes and Log improvements, and previously deployed to the Magnum and LeTigre RC channels.
  • The three main RC channels (Magnum, LeTigre and BlueSteel) will all be updated with the same server maintenance package – 2019-08-29T20:20:39.530516 – comprising “simulator component of deploy tooling and process improvements”. This update sees the introduction of the new Simulator release notes pages (see below).

There will also be a small move of more regions (around 100) to the Cake RC channel on Thursday, September 5th. This will be a further expansion for the script usage improvements. People wishing to test these updates can put in a ticket to have their region moved to Cake – but should note that updates to that channel do not necessarily follow the same weekly schedule as the main RCs.

Release Notes

In May 2019, the viewer release notes moved to a new series of web pages (see: New SL viewer release notes pages: an overview). The RC deployments scheduled for Wednesday, September 4th will see the all release notes for the RC channels move to these pages as well. This means:

  • The there is a new link for simulator release notes on the main About Release Notes page.
  • This link leads to a list of recent simulator releases notes.
  • The release notes themselves have a new “more specific” version number system – as witnessed with the simulator release for the RC channels noted above.

It has been promised that these pages will be “more informative” with release information. This appears to take the form of Jira report reference numbers.

The link to the simulator release notes is now live on the About Release Notes page – click for full size, if required

SL Viewer

At the time of writing, there have been no updates to the current list of existing official viewers, leaving the pipelines as follows:

  • Current Release version 6.3.0.530115, formerly the Bakes on Mesh RC viewer, promoted August 26th – NEW.
  • Release channel cohorts:
  • Project viewers:
    • Project Muscatene (Animesh follow-on) project viewer, version 6.4.0.530100, August 19.
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, dated November 17, 2017 and promoted to release status 29 November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

  • “[Second Life: Failed to grant capabilities”] – this is an error people have been seeing recently. It generally occurs as a result of a general failure to set up communication between your viewer and a region when moving into that region.
    • When first connecting to a region, the viewer asks for – and  should receive – a set of “capabilities” – URLs where the viewer can connect and get or send info.
    • If this fails, it’s unlikely the viewer will be able to work with the region. The most effective way to deal with this is have the region restarted – so if you’re not the region holder, please drop them a line to let them know the region needs restarting or file a support ticket. If you are the region holder and you cannot restart the region or the issue is not resolved following a restart, please file a support ticket.
  • LL continues to investigate the issue whereby any scripts compiled to an experience prior to simulator version 19.08.06.529800 will not recompile on 19.08.06.529800 or later. In fact, Simon Linden was working on the issue while attending the meeting). The root cause does not appear to be within the updated server code, and for now, the only solution appears to be recompiling everything in the experience – which is acknowledged as being less than optimal.

2019 SL User Groups week #35/1: Simulator User Group

][Octopussy][ goes Cuba; Inara Pey, July 2019, on Flickr][Octopussy][ goes Cuba, July 2019 – blog post

Server Deployments

As always, please refer to the server deployment thread for recent news and updates.

  • There was no deployment to the SLS (Main) channel on Tuesday, August 27th,  leaving it on server maintenance package 19#19.08.06.529800, containing internal fixes.
  • On Wednesday, August 28th, the core RC channels should be updated as follows:
    • BlueSteel should be updated with server maintenance package 19#19.08.23.530348, comprising the simulator deployment improvements recorded in the Lab’s official blog post:  Simulator release channel improvements, and my own blog post Lab notes updates to SL simulator deployments.
      • Among other things, this update will see the RC channel name be removed from Help > About in the viewer (it will simply be recorded as “Second Life Server”), and the channel name will no longer be returned for LSL enquiries.
      • Note this is the RC channel name that will be changing – both the simhost name and the simulator version will still be visible, contrary to comments in the forums. Also, simulator version number will remain available to LSL; it is again, just the channel (sim_channel) that  will always return “Second Life Server”
    • Magnum ad LeTigre should receive server maintenance package 19#19.08.23.530380, very helpfully referred to as “Maintenance fixes” and “Maint Train woo woo chuga chuga chuga chuga”
    • There will be a further small-scale RC deployment that will (if I understand things correctly) comprising the script usage improvements  –  the smaller deployment being cautionary after things went sideways when an attempt was made to deploy these updates to an RC channel in week #34.

SL Viewer

The Bakes on Mesh viewer was promoted to de facto release status on Monday, August 26th, with the release of version 6.3.0.530115. You can find out more here:

As a result of this promotion, the Umeshu Maintenance RC viewer updated to version 6.3.1.530411 on Tuesday, August, 27th, bringing it to parity with Bakes on Mesh. This will likely be the next viewer to be promoted to release status in around 2 weeks time.

The rest of the viewer pipelines see no change at the start of the week and remain as follows:

  • Release channel cohorts:
  • Project viewers:
    • Project Muscadine viewer (Animesh enhancements), version 6.4.0.530100, August 19th
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

  • The planned changes to RC deployments (see the blog post links above) has caused some drama, partially due to people misunderstanding that the RC channel names will be less obvious, as noted above – but not the simulator / simhost names.
    • However, it is true that the downgrading of ready access to RC channel names will make it harder for users to recognise which channel they are on – which could made testing capabilities and features harder, given that people are not so familiar with simulator versions and simhost names.
    • The flip side to this is that in some respects, the Lab doesn’t want people to know which channel they are on to stop preconceptions about issues, etc., they may encounter (e.g. “I was on Magnum, which has X release on it, and I have this issue – so it MUST be X that is at fault!”) – and according to Oz Linden, they would like to see more testing of new features on Aditi ahead of any main grid RC deployment.
    • To help people understand what is being released, the simulator version release notes are promised to be “more informative” in future and where relevant. That said, “Maint Train woo woo chuga chuga chuga chuga” isn’t exactly setting the bar that high in terms of informative release notes.
  • There is a reported issue with experiences whereby any scripts compiled to an experience prior to simulator version 19.08.06.529800 will not recompile on 19.08.06.529800 or later. The issue is further described thus, following any attempt to recompile:
    • Checking Properties for the recompiled scripts will show no compiled experience. Plus shift-copying or using the edit menu to copy or dropping an experience script in a host, will all result in the experience being completely lost from the script compile. However, llResetScript() doesn’t trigger the loss.
  • A bug report has been raised on group chat lag (BUG-227477). The Lab is aware of this and has left the report open for further input from those experiencing issues. Constructive and informative feedback is clearly being sought, along the lines of the comments thus far left.

2019 SL User Groups week #34/1: Simulator User Group

Hallig Norddeich, Nibbevegen 1; Inara Pey, July 2019, on FlickrHallig Norddeich, Nibbevegen 1, July 2019 – blog post

Server Deployments

Note: at the time of writing, the server deployment release notes had yet to be published. This article will be updated when they are available.

  • On Tuesday, August 20th, the SLS (Main) channel  was updated with server maintenance package 19#19.08.06.529800, containing internal fixes, and previously deployment to the RC channels in week #33
  • There was a change to the RC deployments in week#33.
    • Server maintenance update containing improvements for script performance and that had been due to be deployed to the BlueSteel and LeTigre channels, was found to have an 11th hour bug that prevented deployment.
    • Instead, BlueSteel and LeTigre received the same deployment as had been planned for Magnum –
    • server maintenance package 19#19.08.06.529800, containing internal fixes.
  • As a result, on Wednesday, August 21st, the RC channels should be updated with at least one server maintenance update, 19#19.08.07.529856, containing the script run improvements. However, at the time of writing, and pending the publication of the release notes, it is not clear if this update will be going to all of the RC channels or just a selection.
    • Should this deployment also go sideways for the script improvements updates, those interested can test performance on the Aditi DRTSIM-406 channel at the Jigglypuff region.

SL Viewer

The EEP RC viewer updated to version 6.4.0.530150 on Monday, August 19th, 2019.

The rest of the official viewer pipelines remain as follows at the time of writing:

  • Release channel cohorts (please see my notes on manually installing RC viewer versions if you wish to install any release candidate(s) yourself):
  • Project viewers:
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

  • Despite the lack of deployment of the script improvement code in week #33, some have reported that overall script performance on some regions appears to have improved. The Lab has picked-up on these reports, but has no explanation as to what may have happened to improve things.
  • At the CCUG group meeting on August 15th, it was stated that a Linden at a recent Web User Group (WUG) had hinted the SL wiki was to be gradually deprecated in favour of the knowledge base. However, at the SUG meeting, Oz Linden indicated that this isn’t necessarily the case:

If I proposed killing the wiki, there a Lindens who would show up with pitchforks…rest assured that it is well defended. One of our background-priority projects that is getting some attention is updating the wiki software, actually … no predictions when that might happen, but Someday™.

  • A major impact felt by regions is that of avatars teleporting into / out of a region. Some work was done to improve things a while ago, particularly around avatars leaving a region, but the Lab is aware of the issues of avatars coming into a region causing it to slow down / freeze – and this is now described as “moving up” in the Lab’s hit list of issues to tackle.
  • There was further discussion around the idea of limiting script use to the parcel level in order to prevent individual parcels taking up all of the script resources for a region. However, as noted in my week #33 summary, this is perhaps much easier said that done.

2019 SL User Groups week #33/1: Simulator User Group

Otter Lake; Inara Pey, June 2019, on FlickrOtter Lake, June 2019 – blog post

Server Deployments

  • There was no deployment to the SLS (Main) channel on Tuesday, August 13th.
  • On Wednesday, August 14th the RC channel should be updated as follows:
    • BlueSteel and LeTigre should be updated to server maintenance update 19#19.08.07.529856, containing internal updates which should see improvements to the percentage of scripts running per CPU cycle (particularly for Full regions) and reduce the portion of a cycle given over to idle scripts.
    • Magnum should be updated to server maintenance update 19#19.08.06.529800, containing internal fixes.

SL Viewer

The Love Me Render viewer, version 6.2.3.527758, formerly the Rainbow RC viewer dated June 5th, was  promoted to de facto release status at the start of the week.

The rest of the official viewer pipelines remain as follows at the time of writing:

  • Release channel cohorts (please see my notes on manually installing RC viewer versions if you wish to install any release candidate(s) yourself):
  • Project viewers:
    • 360 Snapshot project viewer, version 6.2.4.529111, July 16th.
    • Legacy Profiles viewer, version 6.2.3.527749, June 5. Covers the re-integration of Viewer Profiles.
  • Linux Spur viewer, version 5.0.9.329906, promoted to release status 29th November 2017 – offered pending a Linux version of the Alex Ivy viewer code.
  • Obsolete platform viewer, version 3.7.28.300847, May 8th, 2015 – provided for users on Windows XP and OS X versions below 10.7.

In Brief

Scripts

  • Script usage is still seen as possible cause of contention (e.g. because one parcel owner is consuming all script resources within a region). A means has been suggested for changing (see BUG-225391), but the Lab see the issue as complex and so wanted to get improvements such as those being initially deployed to the BueSteel and LeTigre RC channels issued first before potentially digging more deeply into the question of script usage and allocation.
  • How clear a picture does the Full private region Top Scripts give for script usage in a region? Obviously, it can help, but as Mazidox Linden noted: “I do something similar all the time. It doesn’t give you the fine grained details you’d imagine for our set-up however. For that I use other (mostly internal) tools/techniques.”
  • It’s been suggested that script information could be extended to parcel level. This is something the Lab has indicated it is musing doing – but no firm plans to implement any changes if the Lab go in that direction have been indicated. It is also a complicated issue, as Simon Linden summarised:

So how would you treat someone with 1/4 of a region and a club [and] 50 avatars come to see a popular performer, and the other 3/4 are empty at the time? Give [the club] all the script time? Or leave 75% for the  …  other land?

Region Memory Bloat

As a reminder: a region can suffer significant memory bloat during repeated terraforming. Simply put, this is the result of the navmesh (part of the region’s physics) being reformed during the terraforming. This can have numerous impacts: overall performance can be affected, as can rezzing objects. Nominally,  if a Full region’s memory allocation hits approx 900 Mb, or a homestead 230 Mb, it will shut down rezzing (if the underpinning simulator gets within ~90% of its memory limit (256MB for a Homestead & 1024MB for a full region) it will disallow rezzing).

So, if you are running a region that starts reporting issues with rezzing and have been terraforming, consider a restart (or requesting a restart from support).