If you're hosted on a VPS, the below would explain if you are getting the resources that you paid for:
As mentioned in the resources (/proc/user_beancounters):
vmguarpages 0 30,000 2,147,483,647 4KB pages \
Memory allocation guarantee
This is the guaranteed RAM you get which works out to be:
30000 x 4 / 1024 = 117.1875 MB
Accordingly kmemsize is set to:
kmemsize 7,167,393 12,288,832 13,517,715 bytes \
Size of unswappable memory, allocated by the operating system kernel
Minimum kmemsize should be 10% of the vmguarpages, which is correct for the current setup:
12288832/1024/1024 = 11.7 MB == 10% of 117 (vmgaurpges)
