Clear Cache ?

[Michael0786]

Hey,

Is there a way to clear the cache ?

And is there a way to change the size of the downloaded chunks ?, for some games the chunks are about 1m and for some around 100k.

Regards

[TestCandidate]

you can clear the cache by using: rm -R /srv/lancache/data/ -> this will clear all caches. to clear cache for a specific provider (riot for example) use: rm -R /srv/lancache/data/riot/ etc...

for the chunking, the file is located under /usr/local/nginx/conf/lancache/cache-slice you can change the size to what your require.

[Michael0786]

Hey Test,

Thanks the clearing worked perfectly.

The chunking is already sat to 16M, but still the chunks inside steam is around 100K-200K. Any idea why ?

Regards

[bntjah]

@Michael0786 have a look at lancache/conf/lancache/caches line 7

[Michael0786]

Hey bntjah,

Which setting will change the chunk size ? im sorry im failing to see it..

proxy_cache_path /srv/lancache/data/steam levels=2:2 keys_zone=steam:500m inactive=120d max_size=5000000m loader_files=1000 loader_sleep=50ms loader_threshold=300ms;

I just tried downloading 2 games from Steam, both 700mb. 1 game was split into around 700 files, and the other one around 16000 files. Is that something Nginx/lancache does or is Steam ?

Regards

[TestCandidate]

I believe bntjah was pointing out the levels for the naming / folders conventions (levels=2:2). here is out these levels affect the cache structure:

https://forum.nginx.org/read.php?2,2450,273132#msg-273132

[bntjah]

Indeed; trying to lead you in the right direction as for me how it works now is superb; but I know it differs for people...

[Michael0786]

Hey bntjah,

Ok i will try and change some settings here and there and see if i can achieve a higher download speed.

How fast can you download from the cache with your hardware setup ?

[bntjah]

Hi Michael0786,

I have to look it up but I got for sure around 750 mbits throughput (average) and a maximum peak of 975 mbits (estimate) This was on i5 2500k; Asus P8P67 Pro Rev 3.1; 16 GB Ram and ESXi (with vm's) running on Samsung 840 Pro 256 GB. My data was on 2 disks residing on 2 Samsung 850 Evo 500 GB wich were setup as ZFS pool. Also teamed 2 or 3 nics (of the 5) for Lancache usage

If I would tweak the setup I would probably get a bith more speed but at that time I had to host the pfsense on there as well. As I didn't have dedicated hardware yet for pfsense, wich now I do...

Edit: Corrected to clarify speeds

[Michael0786]

Omg thats insane!

I got almost the same setup as you.

I5 -2500K Asus P8Z68 Gen3; 16 GB Ram Debian on 120 GB Samsung SSD 2x Samsung Evo 850 500 GB in ZFS pool (raid0) and i barely see 20-25 MB/S on all games, except one which saturates the gb net (95MB/S), and thats only because the downloaded files are in 1mb chunks.

Could you try and download "Legends of Ares" which is a free game, and post your results when downloaded from lancache ?..

[Mastric]

Careful with the MB vs Mb. Cache VM with a Fusion PCI-E and 10gbit NIC was giving clients about 70MB/s, 560mbits, in steam. I don't think I tested it with a 10gbit client.

[bntjah]

Yeah, as I stated above its from memory so don't assume these to be facts; I do have a screenshot somewhere that I have to search for as I recall taking a screenshot of the terminal looking at the bandwith usage.

Edit: Quickly checked some screenshots I had from before the event while testing and I can see its mbits so clarified

[bntjah]

I am closing this issue; if its not resolved please let me know