Comments on: Havok™4 Early Adopter Region Update with 10 fixes (2008-03-26) - RC2 of the new Second Life Simulator http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/ By Linden Lab Sun, 18 May 2008 00:52:28 +0000 http://wordpress.org/?v=MU By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592367 Sidewinder Linden Thu, 27 Mar 2008 22:32:37 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592367 To all.. see new post about another version update on the beta preview ;) /Sidewinder To all.. see new post about another version update on the beta preview ;)

/Sidewinder

]]> By: Sean Heying http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592365 Sean Heying Thu, 27 Mar 2008 22:30:19 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592365 I will contact you in world Sidewinder about the molasses problem, I am still trying to find a reproducible way to make it happen. As Atashi says it clears up before a minute passes. (Makes mental note to look in region debug next time to look for any collisions) I will contact you in world Sidewinder about the molasses problem, I am still trying to find a reproducible way to make it happen. As Atashi says it clears up before a minute passes.

(Makes mental note to look in region debug next time to look for any collisions)

]]> By: Simon Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592305 Simon Linden Thu, 27 Mar 2008 18:28:55 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592305 @34 Vincent ... that bug just got fixed. Masses with Havok4 won't always be exactly the same as in Havok1, but that was definitely a bug and now they should be pretty close. @34 Vincent … that bug just got fixed. Masses with Havok4 won’t always be exactly the same as in Havok1, but that was definitely a bug and now they should be pretty close.

]]> By: Atashi Toshihiko http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592297 Atashi Toshihiko Thu, 27 Mar 2008 18:01:35 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592297 Thank you Sidewinder (and Andrew) - I have the office hours in my scheduler and will try and be there this evening. I'm also devoting some time to closely watching the issue to see if I can spot any causes or coincidences with the slowdowns. Probably a no-brainer, but when I disable physics, there aren't any problems at all :) of course that sort of defeats the purpose. With collisions disabled, the slowdowns seem way less frequent, but they do occur. Thank you Sidewinder (and Andrew) - I have the office hours in my scheduler and will try and be there this evening. I’m also devoting some time to closely watching the issue to see if I can spot any causes or coincidences with the slowdowns. Probably a no-brainer, but when I disable physics, there aren’t any problems at all :) of course that sort of defeats the purpose. With collisions disabled, the slowdowns seem way less frequent, but they do occur.

]]> By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592296 Sidewinder Linden Thu, 27 Mar 2008 17:59:49 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592296 @34 Vincent: Guess what? Turns out that class of issue represented by SVC-1923 is believed to be solved with a fix we completed last night, that will be included in the next update - coming soon. /Sidewinder @34 Vincent: Guess what? Turns out that class of issue represented by SVC-1923 is believed to be solved with a fix we completed last night, that will be included in the next update - coming soon.

/Sidewinder

]]> By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592280 Sidewinder Linden Thu, 27 Mar 2008 17:01:18 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592280 @39 Atashi: As I asked Sean, please contact me in-world. Posting entries here like this will not provide enough information to actually figure out next steps. I have seen this behavior on *all* simulator versions, not just on Havok4-based simulators, so I am not yet personally clear as to the cause, and would like to figure out if it is actually in the simulator or perhaps elsewhere in the system, or due to some other cause such as a networking issue at the data center. Thanks in advance, Sidewinder @39 Atashi: As I asked Sean, please contact me in-world. Posting entries here like this will not provide enough information to actually figure out next steps. I have seen this behavior on *all* simulator versions, not just on Havok4-based simulators, so I am not yet personally clear as to the cause, and would like to figure out if it is actually in the simulator or perhaps elsewhere in the system, or due to some other cause such as a networking issue at the data center.

Thanks in advance,

Sidewinder

]]> By: Atashi Toshihiko http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592271 Atashi Toshihiko Thu, 27 Mar 2008 16:17:39 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592271 Sidewinder - I've seen that walking-in-molasses behavior on a few havoc4 sims, including my own. The physics FPS and time dilation take a sudden nosedive for no appearant reason, then recover after a while, sometimes as quick as 5 or 10 seconds, other times up to 30 or 60 seconds. I've experienced it so frequently, that's how I know I'm in a Havoc4 sim ;) I don't really know how to explain it in a JIRA as there does not seem to be any cause, it's just an effect that happens frequently but seemingly randomly. (I keep my stats bar open so I can see when the sim FPS / time dilation nosedive, even if I'm standing or sitting still.) Sidewinder - I’ve seen that walking-in-molasses behavior on a few havoc4 sims, including my own. The physics FPS and time dilation take a sudden nosedive for no appearant reason, then recover after a while, sometimes as quick as 5 or 10 seconds, other times up to 30 or 60 seconds. I’ve experienced it so frequently, that’s how I know I’m in a Havoc4 sim ;) I don’t really know how to explain it in a JIRA as there does not seem to be any cause, it’s just an effect that happens frequently but seemingly randomly. (I keep my stats bar open so I can see when the sim FPS / time dilation nosedive, even if I’m standing or sitting still.)

]]> By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592258 Sidewinder Linden Thu, 27 Mar 2008 14:45:38 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592258 @34 Vincent: Would have been nice to see this jira a while ago ;) We'll look at this and see what is possible. Thanks, Sidewinder @34 Vincent: Would have been nice to see this jira a while ago ;) We’ll look at this and see what is possible. Thanks, Sidewinder

]]> By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592256 Sidewinder Linden Thu, 27 Mar 2008 14:43:56 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592256 @30 Sascha: VWR bugs are related to the viewer, and not the simulator (server) portions of the system. This blog post is about a simulator update for a beta early adopter program. /Sidewinder @30 Sascha: VWR bugs are related to the viewer, and not the simulator (server) portions of the system. This blog post is about a simulator update for a beta early adopter program. /Sidewinder

]]> By: Sidewinder Linden http://blog.secondlife.com/2008/03/26/havok4-beta-preview-update-with-10-fixes-2008-03-26-rc2-of-the-new-second-life-simulator/#comment-592255 Sidewinder Linden Thu, 27 Mar 2008 14:42:44 +0000 http://lindenlab.wordpress.com/?p=1780#comment-592255 @29 Sean: The reports I have gotten suggest that the sliding problems have been resolved. I received a separate write-up yesterday with step by step instructions for how to reproduce swimmer problem behavior that we have not seen and we will look at that. I have no idea what behavior you are reporting with regards to simulator sleeping state that is slow like molasses but not lag would be. Please contact me in-world to discuss the simulator issue you have described. This is the first I have heard you comment on such a problem, and it does not sound like we will get to the bottom of the simulator issue you have described in this format. (This could readily be caused by some other parts of the system, if I'm guessing correctly about what you are seeing, but we need to talk in some detail and perhaps do some tests to fully understand the issue.) Regards, Sidewinder @29 Sean:

The reports I have gotten suggest that the sliding problems have been resolved.

I received a separate write-up yesterday with step by step instructions for how to reproduce swimmer problem behavior that we have not seen and we will look at that.

I have no idea what behavior you are reporting with regards to simulator sleeping state that is slow like molasses but not lag would be.

Please contact me in-world to discuss the simulator issue you have described. This is the first I have heard you comment on such a problem, and it does not sound like we will get to the bottom of the simulator issue you have described in this format. (This could readily be caused by some other parts of the system, if I’m guessing correctly about what you are seeing, but we need to talk in some detail and perhaps do some tests to fully understand the issue.)

Regards,

Sidewinder

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