smt - Reduce the number of threads per core

SUSE Linux Enterprise Server 15 SP5 LPAR mode

By default, Linux® in LPAR mode uses the maximum number of threads per core that is supported by the hardware. Use the smt= kernel parameter to use fewer threads. The value can be any integer in the range 1 to the maximum number of threads that is supported by the hardware.

Specifying smt=1 effectively disables simultaneous multithreading.

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Format

smt syntax

Read syntax diagramSkip visual syntax diagramsmt= <hwmax>smt= <number>
where <hwmax> is the maximum number of threads per core that is supported by the hardware, and <number> is an integer in the range 1 - <hwmax>.

Examples

      smt=1