Let me find the point of the lag of jingling.
Why is proxmox slow with jingling?
1.PROXMOX IS POWERED BY LINKED CLONE.
linked clone is a thin-provision method to get your 30 JingLing VPS provisioned in 70G Space. this may cause every jingling VPS continuously read and write the exact space of that template.
2.THESE JINGLING ARE NOT WELL CACHED
JingLing is very HDD-intensive. well, I learned a lot(really a lot) after getting my own Dediated Infrastrature like Caches. JingLing data is not precious at all(all trash temp files!)
so we can use UNSAFE Cache to handle jingling.
so the solution is:
1.use two templates, each handle 15 jingling
2.Change cache to unsafe
ALL DONE.