Configuration file structure

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7.1 LPAR mode z/VM guest KVM guest

The cpuplugd configuration file can specify rules for controlling the number of active CPUs and, for Linux® on z/VM®, for controlling the amount of memory.

The configuration file contains:
  • <variable>=<value> pairs

    These pairs must be specified within one line. The maximum valid line length is 2048 characters. The values can be decimal numbers or algebraic or Boolean expressions.

  • Comments

    Any part of a line that follows a number sign (#) is treated as a comment. There can be full comment lines with the number sign at the beginning of the line or comments can begin in mid-line.

  • Empty lines
Attention: These configuration file samples illustrate the syntax of the configuration file. Do not use the sample rules on production systems. Useful rules differ considerably, depending on the workload, resources, and requirements of the system for which they are designed.