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| author | Huacai Chen <chenhuacai@loongson.cn> | 2026-02-10 19:31:13 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2026-02-10 19:31:13 +0800 |
| commit | 009ee0c96416ecd0c568af72ee37965e06bde460 (patch) | |
| tree | 361f963199ca7e843c97232f15909d1cd7814126 /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 94b0c831eda778ae9e4f2164a8b3de485d8977bb (diff) | |
LoongArch: Add HOTPLUG_SMT implementation
For benchmarking or debugging purpose, we usually want to control SMT
via boot parameter and sysfs knobs. So add HOTPLUG_SMT implementation.
1. Boot parameters:
nosmt: Disable SMT, can be enabled via sysfs knobs.
nosmt=force: Disable SMT, cannot be enabled via sysfs knobs.
2. Runtime sysfs controls:
Write "on", "off", "forceoff" or the number of SMT threads (1, 2, ...)
to /sys/devices/system/cpu/smt/control.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions