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From bf7e0cebaafe790f62cbc5815648d556847b7d27 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sat, 19 Mar 2016 21:32:19 -0400
Subject: [PATCH 108/124] intel_idle: tweak cpuidle cstates
Increase target_residency in cpuidle cstate
Tune intel_idle to be a bit less agressive;
Clear linux is cleaner in hygiene (wakupes) than the average linux,
so we can afford changing these in a way that increases
performance while keeping power efficiency
---
drivers/idle/intel_idle.c | 74 +++++++++++------------------------------------
1 file changed, 17 insertions(+), 57 deletions(-)
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 4466a2f969d7..cbab050b83f0 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -475,7 +475,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 33,
- .target_residency = 100,
+ .target_residency = 1000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -483,7 +483,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
- .target_residency = 400,
+ .target_residency = 4000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -491,7 +491,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x32",
.flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 166,
- .target_residency = 500,
+ .target_residency = 5000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -499,7 +499,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
- .target_residency = 900,
+ .target_residency = 9000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -507,7 +507,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 600,
- .target_residency = 1800,
+ .target_residency = 18000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -515,7 +515,7 @@ static struct cpuidle_state hsw_cstates[] = {
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 2600,
- .target_residency = 7700,
+ .target_residency = 77000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -531,27 +531,11 @@ static struct cpuidle_state bdw_cstates[] = {
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
- .name = "C1E-BDW",
- .desc = "MWAIT 0x01",
- .flags = MWAIT2flg(0x01),
- .exit_latency = 10,
- .target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
- {
- .name = "C3-BDW",
- .desc = "MWAIT 0x10",
- .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
- .exit_latency = 40,
- .target_residency = 100,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
- {
.name = "C6-BDW",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
- .target_residency = 400,
+ .target_residency = 4000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -559,7 +543,7 @@ static struct cpuidle_state bdw_cstates[] = {
.desc = "MWAIT 0x32",
.flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 166,
- .target_residency = 500,
+ .target_residency = 5000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -567,7 +551,7 @@ static struct cpuidle_state bdw_cstates[] = {
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
- .target_residency = 900,
+ .target_residency = 9000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -575,7 +559,7 @@ static struct cpuidle_state bdw_cstates[] = {
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 600,
- .target_residency = 1800,
+ .target_residency = 18000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -583,7 +567,7 @@ static struct cpuidle_state bdw_cstates[] = {
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 2600,
- .target_residency = 7700,
+ .target_residency = 77000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -600,27 +584,11 @@ static struct cpuidle_state skl_cstates[] = {
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
- .name = "C1E-SKL",
- .desc = "MWAIT 0x01",
- .flags = MWAIT2flg(0x01),
- .exit_latency = 10,
- .target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
- {
- .name = "C3-SKL",
- .desc = "MWAIT 0x10",
- .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
- .exit_latency = 70,
- .target_residency = 100,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
- {
.name = "C6-SKL",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 85,
- .target_residency = 200,
+ .target_residency = 2000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -628,7 +596,7 @@ static struct cpuidle_state skl_cstates[] = {
.desc = "MWAIT 0x33",
.flags = MWAIT2flg(0x33) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 124,
- .target_residency = 800,
+ .target_residency = 8000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -636,7 +604,7 @@ static struct cpuidle_state skl_cstates[] = {
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 200,
- .target_residency = 800,
+ .target_residency = 8000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -644,7 +612,7 @@ static struct cpuidle_state skl_cstates[] = {
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 480,
- .target_residency = 5000,
+ .target_residency = 50000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -652,7 +620,7 @@ static struct cpuidle_state skl_cstates[] = {
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 890,
- .target_residency = 5000,
+ .target_residency = 50000,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
@@ -669,19 +637,11 @@ static struct cpuidle_state skx_cstates[] = {
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
- .name = "C1E-SKX",
- .desc = "MWAIT 0x01",
- .flags = MWAIT2flg(0x01),
- .exit_latency = 10,
- .target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
- {
.name = "C6-SKX",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
- .target_residency = 600,
+ .target_residency = 1600,
.enter = &intel_idle,
.enter_freeze = intel_idle_freeze, },
{
--
2.11.1
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