Venki Pallipadi bde6f5f59c x86: voluntary leave_mm before entering ACPI C3 ... Aviod TLB flush IPIs during C3 states by voluntary leave_mm() before entering C3. The performance impact of TLB flush on C3 should not be significant with respect to C3 wakeup latency. Also, CPUs tend to flush TLB in hardware while in C3 anyways. On a 8 logical CPU system, running make -j2, the number of tlbflush IPIs goes down from 40 per second to ~ 0. Total number of interrupts during the run of this workload was ~1200 per second, which makes it ~3% savings in wakeups. There was no measurable performance or power impact however. [ akpm@linux-foundation.org: symbol export fixes. ] Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:32:01 +01:00
..
dispatcher	ACPICA: fix acpi-cpufreq boot crash due to _PSD return-by-reference	2007-12-02 14:26:55 -05:00
events	ACPICA: fix acpi_serialize hang regression	2008-01-10 23:04:10 -05:00
executer	ACPICA: Lindent	2007-05-09 23:34:35 -04:00
hardware	Pull acpica into test branch	2007-10-10 01:00:45 -04:00
namespace	ACPI: Fix a warning of discarding qualifiers from pointer target type	2007-08-25 01:38:40 -04:00
parser	ACPICA: Lindent	2007-05-09 23:34:35 -04:00
resources	fix compilation with gcc 4.2	2007-08-11 15:47:42 -07:00
sleep	Pull alexey-fixes into release branch	2007-10-29 17:30:21 -04:00
tables	ACPI: Add missing spaces to printk format	2007-11-19 21:53:32 -05:00
utilities	ACPI: add dump_stack() to trace acpi_format_exception programming errors	2007-08-25 01:39:02 -04:00
ac.c	ACPI: Make sysfs interface in ACPI power optional.	2008-01-01 14:27:24 -05:00
acpi_memhotplug.c	ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers	2007-07-23 13:56:42 -04:00
asus_acpi.c	ACPI: Schedule /proc/acpi/event for removal	2007-08-23 15:20:26 -04:00
battery.c	ACPI: Make sysfs interface in ACPI power optional.	2008-01-01 14:27:24 -05:00
bay.c	ACPI: bay: send envp with uevent - fix	2007-08-11 22:10:04 -04:00
blacklist.c	ACPI: DMI blacklist to reduce console warnings on OSI(Linux) systems.	2008-01-23 21:28:12 -05:00
bus.c	firmware: change firmware_kset to firmware_kobj	2008-01-24 20:40:23 -08:00
button.c	ACPI: button: send initial lid state after add and resume	2007-10-25 16:31:30 -04:00
cm_sbs.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
container.c	ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers	2007-07-23 13:56:42 -04:00
debug.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
dock.c	ACPI: dock: Send key=value pair instead of plain value	2007-08-11 22:12:10 -04:00
ec.c	ACPI: EC: "DEBUG" needs to be defined earlier	2008-01-23 22:34:09 -05:00
event.c	ACPI: fix CONFIG_NET=n acpi_bus_generate_netlink_event build failure	2007-09-03 11:15:11 -04:00
fan.c	Revert "ACPI: Fan: Drop force_power_state acpi_device option"	2008-01-23 22:41:20 -05:00
glue.c	ACPI: fix empty macros found by -Wextra	2007-07-22 00:54:24 -04:00
Kconfig	ACPI: Make sysfs interface in ACPI power optional.	2008-01-01 14:27:24 -05:00
Makefile	ACPI: Split out control for /proc/acpi entries from battery, ac, and sbs.	2007-11-19 11:21:50 -05:00
numa.c	ACPI: fix modpost warnings	2007-12-13 17:50:09 -05:00
osl.c	ACPI: make _OSI(Linux) console messages smarter	2008-01-23 21:26:15 -05:00
pci_bind.c	ACPI: acpiphp: Remove dmesg spam on device remove	2007-11-20 19:06:04 -05:00
pci_irq.c	ACPI : Not register gsi for PCI IDE controller in legacy mode	2008-01-10 22:49:58 -05:00
pci_link.c	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
pci_root.c	ACPI: autoload modules - Create __mod_acpi_device_table symbol for all ACPI drivers	2007-07-23 13:56:42 -04:00
power.c	ACPI: power: don't cache power resource state	2007-10-25 16:31:31 -04:00
processor_core.c	ACPI: avoid references to impossible processors.	2007-11-29 09:24:55 -08:00
processor_idle.c	x86: voluntary leave_mm before entering ACPI C3	2008-01-30 13:32:01 +01:00
processor_perflib.c	acpi-cpufreq: Fix some x86/x86-64 acpi-cpufreq driver issues	2007-08-07 18:40:30 -04:00
processor_thermal.c	ACPI: delete extra #defines in /drivers/acpi/ drivers	2007-02-12 23:50:52 -05:00
processor_throttling.c	ACPI: processor: Fix null pointer dereference in throttling	2008-01-15 00:47:47 -05:00
sbs.c	ACPI: Make sysfs interface in ACPI power optional.	2008-01-01 14:27:24 -05:00
sbshc.c	ACPI: SBS: Ignore alarms coming from unknown devices	2007-12-14 15:14:06 -05:00
sbshc.h	ACPI: SBS: Ignore alarms coming from unknown devices	2007-12-14 15:14:06 -05:00
scan.c	ACPI: EC: Enable boot EC before bus_scan	2008-01-01 14:12:55 -05:00
system.c	Kobject: change drivers/acpi/system.c to use kobject_create_and_add	2008-01-24 20:40:28 -08:00
tables.c	Revert "ACPI: parse 2nd MADT by default"	2007-03-30 14:16:10 -04:00
thermal.c	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2007-10-19 13:12:46 -07:00
toshiba_acpi.c	Fix Oops in toshiba_acpi error return path	2007-11-14 18:45:36 -08:00
utils.c	ACPI: clean up ACPI_MODULE_NAME() use	2007-02-12 22:42:12 -05:00
video.c	ACPI: video_device_list corruption	2007-12-13 16:24:10 -05:00