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Tech Question. FPS and AMD RamDisk + Eve online

Author
Gunn Yage
Perkone
Caldari State
#1 - 2015-07-24 17:40:11 UTC  |  Edited by: Gunn Yage
So i am using a AMD a4-5300 which is a 3.6ghz dual core, 8gbs of G. Skill ram 1866mhz, a reg samsung 7,200rpm HDD with a EVGA 750-SC 1gb Video card..

Downloaded the game client through steam.

Was getting horrible fps..maybe 5-30 fps with large spikes on med + 1024x786res.
Then I copied the 319mb thats in the Common/Eve Online folder in steam folder to 2gb Ramdisk using AMD RAMDISK Software and my fps is now 110-170+ fps on Highest setting including HDR and AA on max at 1080p..

Why does the ram disk impact the Fps so much vs running off the reg 7200 RPM HDD with a ATI 750?, which i thought would get better performance. Everyone ive talked to about amd's ramdisk software says it sucks..Secondary why are the files in the Steam folder only 319mb?..what are those files and where are the rest?
Velarra
#2 - 2015-07-24 19:00:50 UTC
Having played eve with a ramdisk i'm not quite sure why you are receiving those results you mention. Perhaps your hard disk is very fragmented and unfortunately acting as something of a bottleneck that's grievously impairing your graphics performance when it comes to getting textures to the card from the hard drive. But even if it was, a jump of 5-30 fps vs. 100+ seems a little odd, on the same graphics card.

My last guess would be tied to the 1GB of ram on the graphics card. Perhaps eve currently with all graphics settings at high needs more than 1gb of texture ram. As your card lacks this, you end up with -alot- of swapping between normal ram, gddr gfx card ram & your hard drive.

A ramdisk should benefit load times, when you have the entire shared cache folder (just over 20 gig currently) copied / assigned to a ramdisk. The difference it should be making may marginally improve FPS, - but only due to textures being sent from ramdisk to graphics card that much faster than if the textures were coming from a platter-based hard disk. The speed of a spinning hard drive, 7200 rpm vs. pure ramdisk are universes of performance apart. Megabytes per second read/write vs. terabytes a second for read/write time. With a ram disk, presume easily 4k random r/w @ 5-6tb/s and sequential r/w somewhere around 10-11 tb/s. Terabytes/second /o\ :)

The benefits most obviously noticeable should be client load time when you first log in. The loading of a busy grid, after entering another solar system or warping to a fight / location for PVE/PVP. A ram disk ought to be making these load times practically immediate (faster than even using a modern SSD), with the only waiting occurring for server information & confirms regarding what should be rendered by the graphics card.

Gunn Yage
Perkone
Caldari State
#3 - 2015-07-24 19:34:10 UTC  |  Edited by: Gunn Yage
CPUScore : 6.4
D3DScore : 4.7
DiskScore : 5.9
GraphicsScore : 4.7
MemoryScore : 5.9
TimeTaken : MostRecentAssessment
WinSATAssessmentState : 2
WinSPRLevel : 4.7


That's my Windows 8.1 pro Windows Performance Index results..The Disk doesn't seem to be running to slow, nor appear to be defraged.. oddly the EVGA 750 has the lowest score. but your responce, kinda makes sense...I knew the back and forth would be much faster using a ramdisk vs a HDD or even a SSD..but a quadruple performance boost is odd.
Its not just Eve online..tested also with "The Forest" loading the whole game into Ramdisk.. Can run that game aswell on highest setting, tho floral does load alittle slow, but doesn't cause a shutter effect when doing so at all.
Velarra
#4 - 2015-07-24 22:06:07 UTC
The other thing as far as eve is concerned is that the ~300 or so mb of data you've copied to the ram disk are primarily related to the .exe and basic core support files (afaik). Placing them into a ram disk, shouldn't give you a large increase in performance, particularly graphics performance.

Now if you have 32 gig of ram and copied the "shared cache" for example -

C:\Users\YOURUSERNAME\Documents\EVE\ProgramData\CCP\EVE\SharedCache\

that's listed in the eve launcher, to a directory in your ram disk, formatted to 24 gig for example, leaving windows & eve 8 gig of free ram -

R:\CCP\SharedCache\

You'd have near perfect load times for -everything- in eve.

FPS increase however? ehm...

Only if the graphics memory on your card is not enough for eve's modest needs. At that point, your card would likely start doing a lot of swapping of textures between graphics card ram, system ram and hard drive. The swapping due to insufficient graphics memory *would* cause notable performance issues.
Gunn Yage
Perkone
Caldari State
#5 - 2015-07-26 18:43:13 UTC
Well ill leave it as a Unknown Mystery then... As ive Un-installed the ramdisk and reinstalled and gotten the same results twice..Maybe a Dev could look into why those steam files give me such a boost?