KSP editor performance...

[Darnok]

Why KSP in editor mode is using 130+% of my i5 CPU? Even now when I am looking at my browser not and changing things in KSP it is 120-130%.

EDIT: It is in pure stock and with mods mechjeb2, alarmclock, asteroid day

Edited September 18, 2015 by Darnok

[MalfunctionM1Ke]

Can you provide a screenshot?

Are you running any mods?

[Darnok]

Without mods its even worse... 140% CPU usage

Tasks: 205 total, 3 running, 201 sleeping, 0 stopped, 1 zombie

%Cpu(s): 32,0 us, 13,1 sy, 0,0 ni, 53,8 id, 0,3 wa, 0,0 hi, 0,8 si, 0,0 st

KiB Mem: 5970036 total, 5815344 used, 154692 free, 33748 buffers

KiB Swap: 7323644 total, 8356 used, 7315288 free. 1960424 cached Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

7010 darnok 20 0 2880624 1,688g 45620 R 143,7 29,7 11:33.88 KSP.x86_64

I am running KSP on linux, ^ measuring CPU usage with top command.

I got this LC_ALL=C LD_PRELOAD="libpthread.so.0 libGL.so.1" __GL_THREADED_OPTIMIZATIONS=1 ./KSP.x86_64 from thread about linux performance

EDIT: It is even worse, when I restarted game and first entered into editor CPU usage is 170-180%, zero parts, no buttons being pushed, nothing.

After I loaded any craft it decreased to 130-140%, IMO editor is initialized more than twice after you enter building and after you load craft it has two instances.

Btw I removed every ship from orbit (rescue or delete).

Edited September 18, 2015 by Darnok

[cantab]

In the game settings there's a framerate limit. If that isn't set then KSP will chuck out frames as fast as it can, using a load of CPU even with nothing much happening. With a sensible limit set it won't do that, though it can still use quite a bit of CPU because it's not very well optimised.

[MalfunctionM1Ke]

Thats very odd.

I guess this should be moved to the Support-Section.

Have you tried to backup your current install and run KSP on a fresh install?

[Darnok]

In the game settings there's a framerate limit. If that isn't set then KSP will chuck out frames as fast as it can, using a load of CPU even with nothing much happening. With a sensible limit set it won't do that, though it can still use quite a bit of CPU because it's not very well optimised.

max physics delta-time per fram 0.03

frame limit: default and tested with 60 CPU usage still 180% after first load of editor

Thats very odd.

I guess this should be moved to the Support-Section.

Have you tried to backup your current install and run KSP on a fresh install?

Not yet.

[p1t1o]

How are you getting CPU usages above 100%?

No one else mentioned it so I assume Im missing something?

More serious question - are you actually experiencing any ill-effects other than CPU usage being surprisingly high? What happens when you try to build and fly a craft?

[cantab]

How are you getting CPU usages above 100%?

No one else mentioned it so I assume Im missing something?

That's a Linux thing, where 100% means 100% of one core or the equivalent of that.

[Darnok]

In multi core CPU you can see usage of each core and/or thread (if you have Hyper-Threading on), so I can have usage above 100%.

Single multi threading application can have max 400% usage on my CPU

[p1t1o]

Thats what first occurred to me, though I thought KSP was single-threaded? Anyhoo, you're obviously correct.

And about other ill-effects? Is the CPU usage preventing you from playing or causing other bugs?

[Darnok]

Thats what first occurred to me, though I thought KSP was single-threaded? Anyhoo, you're obviously correct.

And about other ill-effects? Is the CPU usage preventing you from playing or causing other bugs?

Nope, I can play it is just slow.

- - - Updated - - -

Ok, fresh steam install (no old saves, no old crafts, no mods, pure stock!)...

main menu - 170% CPU usage

KSC screen - 105%

editor - 150-170%

[sal_vager]

If you turn off the space center crew on the first page of the settings screen you can reduce the load, but other than that I'd not worry about it.