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[36/52] ACPI: acpi_pad: tune round_robin_time

Message ID fa7584e13ac8e6a306085bba0a931f3135f1d8c4.1343187617.git.len.brown@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Len Brown July 25, 2012, 3:41 a.m. UTC 
From: Len Brown <len.brown@intel.com>

In an effort to be fair to bound processes,
acpi_pad periodically moves its forced-idle threads.

The default interval for moving the threads is 10 seconds.
Measurements show that reducing this to 1 second has no
power or performance impact, so reduce default to 1 second.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpi_pad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 1c09e1b..f3e959f 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -144,7 +144,7 @@  static void exit_round_robin(unsigned int tsk_index)
 }
 
 static unsigned int idle_pct = 5; /* percentage */
-static unsigned int round_robin_time = 10; /* second */
+static unsigned int round_robin_time = 1; /* second */
 static int power_saving_thread(void *data)
 {
 	struct sched_param param = {.sched_priority = 1};