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Commit 4963f620 authored by Len Brown's avatar Len Brown
Browse files

cpuidle: create processor.latency_factor tunable 



Start with default value of 6, so by default,
there is no functional change in this patch.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 60555e37

drivers/acpi/processor_idle.c

+4 −1
Original line number Diff line number Diff line
@@ -94,6 +94,9 @@ module_param(bm_history, uint, 0644); 


static int acpi_processor_set_power_policy(struct acpi_processor *pr);



#else	/* CONFIG_CPU_IDLE */

static unsigned int latency_factor __read_mostly = 6;

module_param(latency_factor, uint, 0644);

#endif



/*
@@ -1576,7 +1579,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr) 


		snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i);

		state->exit_latency = cx->latency;

		state->target_residency = cx->latency * 6;

		state->target_residency = cx->latency * latency_factor;

		state->power_usage = cx->power;



		state->flags = 0;