CPU Steal Time Accounting for VMware guest

This document (000021197) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12


CPU Steal Time Account is generally not enabled by default in VMware guests.
Steal time is the amount of CPU time needed by a guest virtual machine that is not provided by the host. Steal time occurs when the host allocates this CPU time elsewhere, for example, to another guest.


SLES15 has the kernel commits to enable this feature, however, VMware vmx file changes are also required.

The VM configuration option is needed:  stealclock.enable = "TRUE"

SLES12 SP5 kernel version 4.12.14-122.176.1 (released Sept 2023) and above have the commits available.

  * x86/vmware: add a header file for hypercall definitions (bsc#1210327).
  * x86/vmware: add steal time clock support for vmware guests (bsc#1210327).
  * x86/vmware: enable steal time accounting (bsc#1210327).
  * x86/vmware: update platform detection code for vmcall/vmmcall hypercalls



CPU Steal Time Account is not enabled by default in VMware guests.

Additional Information


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  • Document ID:000021197
  • Creation Date: 20-Sep-2023
  • Modified Date:20-Sep-2023
    • SUSE Linux Enterprise Server
    • SUSE Linux Enterprise Server for SAP Applications

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