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Enhance pstate teardown #551

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Merged
hongyuni merged 1 commit into from
Jan 26, 2026
Merged

Enhance pstate teardown #551

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12 changes: 12 additions & 0 deletions BM/pstate/intel_pstate_tests.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,18 @@ please get it from latest upstream tools/power/x86/x86_energy_perf_policy."
fi

pstate_teardown() {
local online_cpu=""

online_cpu=$(ls /sys/devices/system/cpu/cpu*/online | wc -l)
online_cpu=$(($online_cpu+1))
test_print_trc "Total CPUs from /sys/devices/: $online_cpu"

# Hot plug all logic CPUs except cpu0
for ((cpu = 1; cpu < online_cpu; cpu++)); do
test_print_trc "Hot plug CPU$cpu"
echo 1 > $CPU_SYSFS_PATH/cpu$cpu/online
done

# restore pstate status and no_turbo
echo "$no_turbo_value" > "$CPU_NO_TURBO_NODE"
echo "$pstate_status_value" > "$CPU_PSTATE_SYSFS_PATH/status"
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