We use CloudLinux on our Linux servers (cPanel) and set resource limits with each hosting account/plan. The following are our current limits**:
Starter
CPU = 200%
RAM = 3 GB
Entry Processes = 20
I/O = 50 MB/sec
IOPS = 1024
Inodes = Unlimited
Medium
CPU = 400%
RAM = 3.5 GB
Entry Processes = 30
I/O = 100 MB/sec
IOPS = 2048
Inodes = Unlimited
Large
CPU = 600%
RAM = 4 GB
Entry Processes = 40
I/O = 150 MB/sec
IOPS = 3072
Inodes = Unlimited
XLarge
CPU = 800%
RAM = 4.5 GB
Entry Processes = 50
I/O = 200 MB/sec
IOPS = 4096
Inodes = Unlimited
