[BDS-205] Server causes high CPU usage even when idling Created: 30/Oct/18  Updated: 28/Mar/20  Resolved: 28/Mar/20

Status: Resolved
Project: Bedrock Dedicated Server
Affects Version/s: 1.6.1.0
Fix Version/s: None

Type: Bug
Reporter: ZHANG XIAOLONG Assignee: Unassigned
Resolution: Duplicate Votes: 2
Labels: awaiting-response

Attachments: JPEG File htop.jpg     PNG File 屏幕快照 2018-10-30 下午2.25.17.png    
Issue Links:
Duplicate
duplicates BDS-2574 1.14+ Linux Performance Degradation Resolved
is duplicated by BDS-243 Extremely high cpu usage and lag on 4... Resolved
Relates
relates to BDS-162 /spreadplayers command causes server lag Resolved
relates to BDS-178 IPv4 supported, But port = 0 Resolved
relates to BDS-209 Memory Leak Resolved

 Description   

No player online, when the server is idle, the CPU usage is high.



 Comments   
Comment by IonicEcko [ 28/Mar/20 ]

Thanks Zhang,

Sorry its taken so long for me to get back to you. We're actually already tracking this issue under BDS-2574.

I realise this ticket is far older than that one however as i was going through the backlog it appeared to be the one with the most "watchers" (community members who have requested updates on the ticket) and had a substantial amount of information. It has since been forwarded onto Mojang!

If you would like to add a vote and any extra information that's missing to the main ticket it would be appreciated.

Ionic

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Comment by ZHANG XIAOLONG [ 07/Mar/20 ]

Hi,IonicEcko

Yes, this high CPU usage problem persists in the Linux version of BDS.
BDS in Windows version works fine.

We have an engineer performing a reverse analysis of the Linux version of the BDS kernel and found that there are many places that are not optimized, so the performance is much worse than the Windows version.

Comment by IonicEcko [ 04/Mar/20 ]

Hi Zhang,

Are you still experiencing this issue?

While there appears to be an issue with BDS and performance when users are connected. When idle my Ubuntu test server is in the 0.X% range.

Ionic

Comment by Chris Wawak [ 31/Dec/18 ]

Seeing 100% on 2 cores all the time on a Google Cloud VM on bedrock_server 1.8.0.24. 

Comment by [Mod] bemoty [ 07/Dec/18 ]

BDS-243 has been resolved as a duplicate of this issue – that doesn't mean that issue was fixed.

Comment by ZHANG XIAOLONG [ 03/Dec/18 ]

We have seen that the BDS-243 flag has been resolved. Can I update to the latest beta?

Comment by ZHANG XIAOLONG [ 02/Nov/18 ]

1 Core CPU on Google Cloud VM . Debian 9.

50% CPU all time.

 

Comment by Gregory Lynn [ 01/Nov/18 ]

How many cores are you running? And whats the processor? BDS needs lots of CPU power to make it run decently. I tried BDS with a 1 Core VPS and the load was 100% at all times. Using Ubuntu 18.04 server

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