z/VM directories and attributes
There are hypfs directories and attributes with hypervisor information for Linux® on z/VM.
- update
- Write-only file to trigger an update of all attributes.
- cpus/
- Directory for all physical CPUs.
- cpus/count
- Total current CPUs.
- hyp/
- Directory for hypervisor information.
- hyp/type
- Type of hypervisor (z/VM hypervisor).
- systems/
- Directory for all z/VM guest virtual machines.
- systems/<guest name>/
- Directory for one z/VM guest virtual machine.
- systems/<guest name>/onlinetime_us
- Time in microseconds that the guest virtual machine has been logged on.
- systems/<guest name>/cpus/
- Directory for the virtual CPUs for one guest virtual machine.
- capped
- Flag that shows whether CPU capping is on for the guest virtual machine (0 = off, 1 = soft, 2 = hard).
- count
- Total current virtual CPUs in the guest virtual machine.
- cputime_us
- Number of microseconds where the guest virtual machine CPU was running on a physical CPU.
- dedicated
- Flag that shows if the guest virtual machine has at least one dedicated CPU (0 = no, 1 = yes).
- weight_cur
- Current share of guest virtual machine (1-10000); 0 for ABSOLUTE SHARE guests.
- weight_max
- Maximum share of guest virtual machine (1-10000); 0 for ABSOLUTE SHARE guests.
- weight_min
- Number of operating CPUs. Do not be confused by the attribute name, which suggests a different meaning.
- systems/<guest name>/samples/
- Directory for sample information for one guest virtual machine.
- cpu_delay
- Number of CPU delay samples that are attributed to the guest virtual machine.
- cpu_using
- Number of CPU using samples attributed to the guest virtual machine.
- idle
- Number of idle samples attributed to the guest virtual machine.
- mem_delay
- Number of memory delay samples that are attributed to the guest virtual machine.
- other
- Number of other samples attributed to the guest virtual machine.
- total
- Number of total samples attributed to the guest virtual machine.
- systems/<guest name>/mem/
- Directory for memory information for one guest virtual machine.
- max_KiB
- Maximum memory in KiB (1024 bytes).
- min_KiB
- Minimum memory in KiB (1024 bytes).
- share_KiB
- Guest estimated core working set size in KiB (1024 bytes).
- used_KiB
- Resident memory in KiB (1024 bytes).
To check the content of the files, you can use tools such as cat or less.