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MC. 1.12.2, is there a way for a better log file?


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Hello.

I'm running a moddet dedicated server since a few days, it has 32Gb. ram and I constantly check logs and I saw that sometimes I get a warning, it says "can't keep up, running 2500ms behind, skipping 50 tick(s).

I started in the server console the /debug start command, let it run a minute, did catch some logs while the warning appears.

DId this three times to different times, then I've tried to read the logs and I don't know how.

I  do understand the depth (section) levels  of the log, but where would I see an exception?

It's only in percent, which I assume is one for Client one for Server.

"Time span: 150930 ms
Tick span: 2573 ticks
// This is approximately 17.05 ticks per second. It should be 20 ticks per second"

"

I would really like to understand the concept of debugging, if I can't change it it's fine, but I would like to know what causes this high ticks.

 

Thanks,

Best regards.

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Boilerplate:

If you don't post your logs/debug.log we can't help you. For curseforge you need to enable the forge debug.log in its minecraft settings. You should also post your crash report if you have one.

If there is no error in the log file and you don't have a crash report then post the launcher_log.txt from the minecraft folder. Again for curseforge this will be in your curseforge/minecraft/Install

Large files should be posted to a file sharing site like https://gist.github.com  You should also read the support forum sticky post.

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Thank you so much, this looks good, because it gives me more options to DEBUG properly, which is the main issue.

If you can't properly debug, how would you ever want to find anything?
If I can trackdown the mod that is causing too much lag, I'll just delete the mod.

 

Spark is all I need, it looks super helpful.
I've read many threads and it's very hard to find help. So really, big thanks.

Sorry for the double post, do you maybe have a good documentary reading about commands like this? "-XX:+ParallelRefProcEnabled"

I haven't found anything that explains me, I think it has something to do with multiple thread / or maybe garbage collecting in Java.

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Sorry for the double post, do you maybe have a good documentary reading about commands like this? "-XX:+ParallelRefProcEnabled"

You are asking about esoteric flags in the java runtime from nearly 10 years ago.

You want a java support forum not a minecraft modding forum.

Boilerplate:

If you don't post your logs/debug.log we can't help you. For curseforge you need to enable the forge debug.log in its minecraft settings. You should also post your crash report if you have one.

If there is no error in the log file and you don't have a crash report then post the launcher_log.txt from the minecraft folder. Again for curseforge this will be in your curseforge/minecraft/Install

Large files should be posted to a file sharing site like https://gist.github.com  You should also read the support forum sticky post.

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Well, at least you're saying the truth and gave me more than enough help, I think, everything else I can solve by myself. Spark is very powerful.

With spark I found after several hours what the lagg has caused and it was: depth 3 -> mobSpawner / entitie and I now understand according to the documentary what the percent means on the left and right side.

 

With effort everything is possible, even if the game would be 30 years old.

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14 hours ago, Insterluda said:

Sorry for the double post, do you maybe have a good documentary reading about commands like this? "-XX:+ParallelRefProcEnabled"

I haven't found anything that explains me, I think it has something to do with multiple thread / or maybe garbage collecting in Java.

This flag tells Java to perform the reference counting procedure of G1 garbage collection in parallel.

If you have a lot of cpu threads (at least 12) and allocated a lot of ram, adding this flag can help scan through all that allocated ram faster.

However, it may hurt performance if you don't have many threads as it'll cause thread contention, where it starts fighting with the game for cpu resources.

The FAQ has some advice on performance iirc.

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