FSX and RamDisks

[Bjoern]

This is just web translated, but might be interesting for those willing to experment.

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.flightx.de%2Findex.php%3Fpage%3 DThread%26postID%3D386604

Having parts of FSX running from a RamDisk apparently makes for better performance.


I haven't tested this myself, as I only have 4GB Ram.

[AndyE1976]

A RAMDISK should give the same performance as a PCI-E SSD or maybe better due to the higher bandwidth allocated to that part of the bus and the direct route to the CPU. Definitely something worth a try for traffic and even FSX if you have enough RAM.

FSX only uses 3gb of RAM anyway, so as long as you have enough to put all your background processes and a RAM drive and still leave 3gb for FSX to run in then you shouldn't get OOM exceptions with a RAMDISK.

Looking at his specs though I was surprised he only got 25-30fps. My i7-960 @ 4ghz with 12gb RAM and a GTX580 is capable of that and more without any SSD's or fancy tricks.

[Bjoern]

A RAMDISK should give the same performance as a PCI-E SSD or maybe better due to the higher bandwidth allocated to that part of the bus and the direct route to the CPU. Definitely something worth a try for traffic and even FSX if you have enough RAM.

Performance is definately better.

My SSD manages to read ~300 Mbytes/second, my RAM is about 30 times faster.


Looking at his specs though I was surprised he only got 25-30fps. My i7-960 @ 4ghz with 12gb RAM and a GTX580 is capable of that and more without any SSD's or fancy tricks.

Performance depends on more than just hardware. The user aircraft, AI, FSX settings and sceneries play into the equation quite significantly.