Massime performance drop in 1.0.5

[Nansuchao]

From the first update to 1.0.5 I had a very terrible performance drop in flight. I waited for many mods to be updated, removed some mods, checked my output log for mods creating issues, but nothing helped me to come back to my more or less 30 fps in flight. In my output log: https://www.dropbox.com/s/kcstdu0jhh7ry92/output_log.txt?dl=0 I find a lot of

NullReferenceException: Object reference not set to an instance of an object

at Vessel.<GetUnloadedVesselMass>m__477 (.ProtoPartResourceSnapshot x) [0x00000] in <filename unknown>:0

at System.Linq.Enumerable+<Sum>c__AnonStorey3A`1[ProtoPartResourceSnapshot].<>m__74 (Single a, .ProtoPartResourceSnapshot [0x00000] in <filename unknown>:0

at System.Linq.Enumerable.Sum[ProtoPartResourceSnapshot,Single] (IEnumerable`1 source, System.Func`3 selector) [0x00000] in <filename unknown>:0

at System.Linq.Enumerable.Sum[ProtoPartResourceSnapshot] (IEnumerable`1 source, System.Func`2 selector) [0x00000] in <filename unknown>:0

at Vessel.GetUnloadedVesselMass () [0x00000] in <filename unknown>:0

at Vessel.GetTotalMass () [0x00000] in <filename unknown>:0

at Vessel.CalculatePhysicsStats () [0x00000] in <filename unknown>:0

at Vessel.FixedUpdate () [0x00000] in <filename unknown>:0

I'm unable to find what cause this. Can someone please help me?

[Nansuchao]

Bump. No suggestions at all? ;-(

[maceemiller]

I too have found a large drop in performance since updating from 1.0.4. KSP ran smoothly before on my machine and no settings have been changed.

[Nansuchao]

Did you checked for NRE similar to mine?

[nuothe11th]

I am also experiencing a MAJOR performance drop, where on launch I drop to less than 3 FPS, and pretty much cannot even play anymore.

Do you notice if your rockets are off-center on the launch pad too? Mine are, one was so off center that the pad exploded when I launched.

There's got to be a mod out there that just isn't compatible yet slowing all this down. I might try a fresh Stock install to try to fix it.

[Nansuchao]

I made some tests, it seems that Kopernicus broke KSP. To solve it's needed to remove it and validate the install from Steam.

[komodo]

I'm getting this exact exception, but an entirely stock system. No Kopernicus. Google suggests perhaps KCT as the culprit, but this is just a supposition. Would you believe you have the exact same error and no one else?

Any ideas would be rad, thanks!

[Macel]

I am getting this exact message spammed in my ksp.log ... It's some mod but I'm not sure which one... Trying to find that out...

[Macel]

Well, I uninstalled all mods from my game and I am still getting spammed with this in my logs when I switch to a ship in orbit in my career

266631 [EXC 22:47:57.844] NullReferenceException: Object reference not set to an instance of an object
266632 Vessel.<GetUnloadedVesselMass>m__477 (.ProtoPartResourceSnapshot x)
266633 System.Linq.Enumerable+<Sum>c__AnonStorey3A`1[ProtoPartResourceSnapshot].<>m__74 (Single a, .ProtoPartResourceSnapshot b)
266634 System.Linq.Enumerable.Sum[ProtoPartResourceSnapshot,Single] (IEnumerable`1 source, System.Func`3 selector)
266635 System.Linq.Enumerable.Sum[ProtoPartResourceSnapshot] (IEnumerable`1 source, System.Func`2 selector)
266636 Vessel.GetUnloadedVesselMass ()
266637 Vessel.GetTotalMass ()
266638 Vessel.CalculatePhysicsStats ()
266639 Vessel.FixedUpdate ()

[COLOR="silver"][SIZE=1]- - - Updated - - -[/SIZE][/COLOR]

Messing around with it some more.. My career mode game has a ton of space junk floating around because I tend to be messy and don't deorbit things... I tested setting the max persistent debris down to 25 and loaded up the same piece of floating debris I was previously getting spammed in the log file with.. The game performed noticeably better.. I was still getting hit in the log file with that null ref exception but not nearly as often. I think the null ref gets spammed exponentially more often with more craft in orbit and causes serious slowdown for games with large numbers of ships/debris/etc... I can't say for 100% certain if its specific to my career mode but its looking like its a bug with the core game, not mod-related at this point...

[Macel]

... And I was able to resolve the issue by disabling logging. Turns out the exception itself isn't slowing the simulation down, it's the act of logging it to the file hundreds of times a second.. See if your performance improves by running your KSP.exe with the -nolog option.

[Nansuchao]

What? Can you explain this? Never heard of this possibility....

In my tests, I had the feeling that a mod broke KSP also when removed. Edited November 17, 2015 by Nansuchao

[komodo]

I hadn't noticed it performance wise (Don't shoot me) but just as a matter of course, habit from running on OS X to have a tail -f log running on second screen, to see when its going to crash. I haven't seen this one before though, and its on linux x64 besides. It has to be an addon, but i've not had a chance to run down which one. I'm not at home at the moment, but i'll try to upload a list next time i'm able. (Plus the log, for that matter). Perhaps we can determine between us what common mod might be amiss.

[Macel]

[quote name='komodo']I hadn't noticed it performance wise (Don't shoot me) but just as a matter of course, habit from running on OS X to have a tail -f log running on second screen, to see when its going to crash. I haven't seen this one before though, and its on linux x64 besides. It has to be an addon, but i've not had a chance to run down which one. I'm not at home at the moment, but i'll try to upload a list next time i'm able. (Plus the log, for that matter). Perhaps we can determine between us what common mod might be amiss.[/QUOTE]

It was doing this with no mods installed at all. I reported the bug to squad. Workaround is to run ksp.exe with the -nolog option

[Nansuchao]

[quote name='Macel']It was doing this with no mods installed at all. I reported the bug to squad. Workaround is to run ksp.exe with the -nolog option[/QUOTE]

I tried that. Effectively it reduce the lag, but doesn't solve the issue completely. On the same ship, parked at the KSC, I had 20/25 FPS on 1.0.4 (it's a complex spaceplane), 6 FPS in 1.0.5, 10/13 FPS with -no log.

[SnakyLeVrai]

@Nansuchao, @maceemiller, @komodo, @Macel, @nuothe11th: Issue solved for me!

I have found the answer here:

It worked for me, it's due to an old MKS update that left some deprecated code in the save file: an obsolete resource.

 

1. Backup your persistent.sfs file
2. Open it (I use notepad++, it's very fast, especially if your save file is heavy)
3. Look for this (like, search for every "name = PunchCards" occurences) :

   RESOURCE
   {
   	name = PunchCards
   	amount = 0.0001
   	maxAmount = 200
   	flowState = True
   	isTweakable = True
   	hideFlow = False
   	flowMode = Both
   }

4. Delete this whole RESOURCE block everywhere you find it.

5. Save, launch KSP and check if the logspam is gone. Browse through your ships and make sure everything is in order.

6. If not, sorry  can't help you more.

 

I've deleted mods that I don't use anymore before doing this but, it didn't help:

• Hangar (not Hangar Extender, just Hangar)
• Regolith
• Extraplanetary Launchpads

It stopped spamming after I deleted the RESOURCE block.

 

 

So, I gained a little FPS and now I've got cleaner logs. I just hope 1.1 will be faster 

Edited March 24, 2016 by SnakyLeVrai
inintelligible mess