I would test it but i set 1tb of rolling cache and dont want to do it again. lol bould be a mix of things. the game is DLing files and writing them on the drive so read speeds are kind not important at first i guess, unless you end your flight and fly again the same are, then we might see a difference. But im just guessing.

 

On 8/21/2020 at 7:50 AM, roi1862 said:

Isn't this a big deal ? Isn't it supposed to be the exact opposite ?

No, I don’t think so. The purpose of the cache is not better performance. It’s to save internet usage for those with data caps.

Naturally, when you ask a computer to stream and cache at the same time, performance may suffer.

On 8/21/2020 at 9:08 AM, roi1862 said:

word not allowed... i am afraid to switch it off...should i ? Should i also delete the rolling cache file ?

Only if you have a very fast download speed.  Also...if your ISP is always a very reliable service. If not...I'd keep the rolling cache as on.

4 minutes ago, Sesquashtoo said:

Only if you have a very fast download speed.  Also...if your ISP is always a very reliable service. If not...I'd keep the rolling cache as on.

Hi Buddy

Whats the difference between having cache on or off ? would I not get my scenery if its off ? thanks 

13 minutes ago, Richard Sennett said:

Hi Buddy

Whats the difference between having cache on or off ? would I not get my scenery if its off ? thanks 

There are 2 types of cache, the rolling as far as i know is downloaded and saved on your drive as you fly over any area and accordingly to the altitude (low, medium and high resolution to high, medium and low altitude). the other cache, Manual cache, is where you can pre-download the are you want to fly before the flight starts, this is particularly good for those with slower internet, so you can select the areas you fly the most before you fly, but, as far as I know, the rolling cache will do that until the limit you set and overwrite older files.

25 minutes ago, wollinger said:

There are 2 types of cache, the rolling as far as i know is downloaded and saved on your drive as you fly over any area and accordingly to the altitude (low, medium and high resolution to high, medium and low altitude). the other cache, Manual cache, is where you can pre-download the are you want to fly before the flight starts, this is particularly good for those with slower internet, so you can select the areas you fly the most before you fly, but, as far as I know, the rolling cache will do that until the limit you set and overwrite older files.

Thanks much Sir

1 hour ago, Isaiah53six said:

I noticed less stutters if rolling cache is kept around 8gb.  I had my rolling cache at 50-100gb and lots of stutters came with it.

I was wondering if size had something to do with it. AFAIK, the cache is like a huge database, so the bigger it is, the slower it could become. Since database indexes are usually stored in RAM for performance sake, perhaps more RAM (like going from 16 to 32) would make a bigger cache more responsive.

I'm one of those guys with not the greatest Internet, so I'd rather not turn off rolling cache, but I could see downsizing it if it helps performance.

Edited September 10, 20205 yr by Keto Ketchup

6 hours ago, Keto Ketchup said:

I was wondering if size had something to do with it. AFAIK, the cache is like a huge database, so the bigger it is, the slower it could become. Since database indexes are usually stored in RAM for performance sake, perhaps more RAM (like going from 16 to 32) would make a bigger cache more responsive.

I'm one of those guys with not the greatest Internet, so I'd rather not turn off rolling cache, but I could see downsizing it if it helps performance.

probably right about that.  I only have 16gb ram so I imagine having 32gb would make the game more stable too.  I increased my internet to 100mbps which also seemed to have helped.

9 hours ago, wollinger said:

But is not about the Drive speed only, the game does not load the files at that speed and at a constant rate so there is no gain between loading the game from a SSD and a NVME.

The game does not load the game at more than 800MB/s from my raid at peak time.

It also depends on the CPU speed.

9 hours ago, Richard Sennett said:

Hi Buddy

Whats the difference between having cache on or off ? would I not get my scenery if its off ? thanks 

Richard, the cache is basically there if your ISP download speed is moderate to slower than mostl...it is exactly that..a download of content 'cache' that keeps a tab of where you fly. Now...if you have a cache on...MSFS won't drop it down again (historical) data...but will go and seek the data out of your cache. That will take CPU cycles for seek and in-load.  But...if you have a lightning fast download speed, there is actually NO NEED to even have a cache..as it will be downloaded, in real time...and if you have unlimited and fast...there again is no reason to have MSFS CPU bound, write  AND read back from your cache drive. It merely dumps directly from your ISP data stream.  Your hardware will thank you for that...in less seek/write cycles.

I have 385 data down rate...so my scenes, and over-flys...are instant, formed and data flowed directly from the Cloud.  No need to have MSFS read/write/store...always hot off the press...so no cache's are enabled.

 

You guys who turn off the rolling cache, do you use the manual cache any? I can easily stream autogen scenery, but photogrammetry really pushes my bandwidth, so I really do benefit from some form of caching.

I have both Rolling Cache and Manual Cache set to OFF. Uncapped fibre line with a stable 50 Mb/s up and down, connected using LAN cable, not wifi. Perfectly smooth on an average system, even with settings on high/ultra. I do not want scenery constantly caching to the SSD, especially when I am not flying in the same area all the time - it becomes pointless then and dare I say it, destructive for your SSD.

It is a concern that the OP says that with his rolling cache off, it still used up 6GB of his disc space. That should not happen.

Just my opinion but having rolling cache on means your PC is having to allocate CPU cycles to writing to the disc on a constant basis as you fly. That might be where the stutters come from. I don't get them. It may also end up caching scenery at the expense of displaying the scenery you are actually looking at. Think about it, how can the sim know that it must not cache scenery ahead when you are about to make a 90 degree turn. It might be so busy caching scenery that you won't actually fly over - at the expense of scenery that you will fly over. 

 

On 9/9/2020 at 6:53 PM, Isaiah53six said:

I noticed less stutters if rolling cache is kept around 8gb.  I had my rolling cache at 50-100gb and lots of stutters came with it.

Interesting,

I changed mine to 100GB and it seemed worse so I changed it back to 8GB, I also have MSFS installed on a 7200 RPM WD Black drive for now but changed the location of the rolling cache to an SSD and it seemed to make a difference.