KSP into a RAM DISK ! [10Gb/s]

[XaTriX]

Hi',

After reading the "KSP ram" topic i had an idea : inject KSP into a RAM Disk.

I've 32Gb.

I made a ram disk using "Softperfect RAM Disk".

I've created a 10000Mo ram disk at Z:

And i copied KSP into Z:

But it seems to do... nothing.

Loading in video plus loading VAB/vessel/launch & CRASH !

Several crashs since i injected KSP into RAM Disk... WTF ?

May be software related.

I think i'm CPU limited because of the bad multithreading optimisation (i've a 3770K)

XaT

[-RanZ-]

What are you trying to accomplish with this? With KSP CPU is the bottleneck as it takes a lot of CPU to process all the physics of the parts. All the parts are already loaded in memory so you will not see any gain by this except when loading the game.

[XaTriX]

I'm trying to load faster! 30sec to load main menu + loading savegame, VAB, vessel & launch = ~60sec

It was just a test.

It seems to be clearly limited by CPU.

So it's useless

XaT

[TwoHedWlf]

It seems to be clearly limited by CPU.

So it's useless

XaT

Thought that was common knowledge. I did a test once loading from a spinny HD and from a SSD, the times were something like 45 seconds vs 46 seconds. Basically within the margin of error of timing with the secondhand on my watch.

[draeath]

Bwahaha it takes me about 10 minutes to get to the loading screen.

... my system is entirely healthy, I've just go so many mods I'm approaching the limit of RAM a 32-bit process can claim

[-RanZ-]

I would think it would load almost instantly from a RAM drive!

[draeath]

It still has to decompress/process the textures and upload them into VRAM... but disk reads are one of (if not the) slowest parts of this process.

[XaTriX]

Yes, but here the disk run @10Gb/s so it's not the slowest part. And the bandwith between RAM & PCIe 3.0 is pretty high..

XaT

[boxman]

What are you trying to accomplish with this? With KSP CPU is the bottleneck as it takes a lot of CPU to process all the physics of the parts. All the parts are already loaded in memory so you will not see any gain by this except when loading the game.

Using something like the ram disk could still drastically decrease loading times.

[draeath]

That's what I just said, effectively. You removed one of the worst, if not the worst, loading bottlenecks... but there are still other (faster, but still slow) bottlenecks after that

[XaTriX]

Anyway, it crashed within 1/2mn so..

XaT

[TouhouTorpedo]

Unity Engine is part of the problem. Even if you had KSP on solid state, Unity Engine checks all the available ports possible (be those internal to your computer or networks) when any file is accessed on the loading procedure, since it uses a URL loading method. Since it checks everytime file, its pretty slow, and if you have any virtual network open such as Hamachi, the loading times become intolerable.

[-RanZ-]

good effort though!

[XaTriX]

What is the relation between Hamachi & loading time ??

XaT

[Rjhere]

I saved KSP on my ssd... Doesnt matter anyway

[earth]

Unity Engine is part of the problem. Even if you had KSP on solid state, Unity Engine checks all the available ports possible (be those internal to your computer or networks) when any file is accessed on the loading procedure, since it uses a URL loading method. Since it checks everytime file, its pretty slow, and if you have any virtual network open such as Hamachi, the loading times become intolerable.

Thats horrendous!

[lyravega]

I use AMD Ramdisk. KSP is located there. Minor boost to load times, but major when I'm recording something. Kinda getting a "double boost" when recording.

[Symshady]

I use AMD RAMDisk as well. Big help on startup, no change in performance because of the processor bottleneck. I use the processor fan exhaust to heat my dungeon.