Hello,

 

I have always been puzzled that it takes me much longer to load FSX after rebooting my system than reloading it from the same Windows session, whether at the same airport as previously or a totally different one. As far as I know and I can see, no cache files are generated by FSX and then deleted during the rebooting.

 

Could anyone explain me why ?

 

Thanks

 

TJ

I have no idea as to the reason, but it does. How much longer does it take?? Mine takes nearly twice as long, but even that is less than two minutes.

Same for me.

It can take 3 to 4 times longer, especially when sceneries are set to very complex. In the scenery library, we are offered to empty the scenery cache upon exit, but I could never figure where this cache lays ???

I have always had the "empty cache..." check box checked. Not really too interested in where it is though.

Windows caches FSX or parts of it with SuperFetch.

I have over 100 gigs of photo real scenery and FSX took forever to load the first time. I moved it all to an external ESata drive and simply turned it off when not flying those areas, and FSX loads in 1/4 the time, just FYI

Thanks for your advice, Jay. I will look into that direction with an ESata or a USB3 drive

It has to be ESata, USB drives transfer rates are too slow to work with FSX

I installed a third internal HDD for my photoreal scenery. Might be a way to go if your computer can handle additional internal drives

It has to be ESata, USB drives transfer rates are too slow to work with FSX

 

You need to do some research on the USB3 transfer speeds.

You need to do some research on the USB3 transfer speeds.

 

LOL no I don't, I dont have USB 3 connections, perhaps you could enlighten use as to USB3 vs ESata ?

I don't have any USB3 ports, either. But the next system built will have lots of them.

 

Here's an article (from many out there on the web) that discusses the speed of USB3 vs. eSATA; http://www.itworld.com/hardware/98987/usb-30-vs-esata-is-faster-better

 

And despite all the claims of how fast each may be (in testing conditions!), I'm transferring a large amount of files right now to an e-SATA drive. 66.6MB/second is what's showing. This copy will take about an hour and a half. A different backup via USB2 took 8+ hours.

I think FSX mainly opens scenery files as "memory-mapped" files. That way the OS actually deals with the loading/unloading of the files. The OS (in particular 7) will use system RAM for an OS cache, and I think many of those cached files will remain after FSX is shutdown. So when FSX restarts it just needs to get a new file handle from the OS.

 

The scenery cache referred to in the FSx UI is on the user data drive. It is used when a scenery area is marked as "remote" in scenery.cfg. This is a holdover from the old FS days when you had scenery areas on floppies and loaded them into system as needed.

 

scott s.

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