CloudLinux is a custom kernel that allows system administrators to specify custom restrictions for users. This prevents a machine from being overloaded by a single client or a poorly written script. It's mainly used by shared webhosting companies. The CloudLinux module for Nixstats provides several per user metrics described below.
CloudLinux Metrics
The following metrics are available from the CloudLinux monitoring plugin. Source code is available on GitHub.
- mCPU
Max CPU usage
- aCPU
Average CPU usage
- lCPU
CPU Limit
- aEP
Average Entry Processes
- mEP
Max Entry Processes
- lEP
maxEntryProc limit
- aVMem
Average Virtual Memory Usage
- mVMem
Max Virtual Memory Usage
- lVMem
Virtual Memory Limit
- VMemF
Out Of Memory Faults
- EPf
Entry processes faults
- aPMem
Average Physical Memory Usage
- mPMem
Max Physical Memory Usage
- lPMem
Physical Memory Limit
- aNproc
Average Number of processes
- mNproc
Max Number of processes
- lNproc
Limit of Number of processes
- PMemF
Out Of Physical Memory Faults
- NprocF
Number of processes faults
- aIO
Average I/O
- mIO
Max I/O
- lIO
I/O Limit
