From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Sat, 19 Mar 2016 21:32:19 -0400 Subject: [PATCH] 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 | 44 +++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index d79335506ecd..3154cebef986 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -502,7 +502,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x01", .flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_ALWAYS_ENABLE, .exit_latency = 10, - .target_residency = 20, + .target_residency = 120, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -510,7 +510,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x10", .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 33, - .target_residency = 100, + .target_residency = 900, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -518,7 +518,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x20", .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 133, - .target_residency = 400, + .target_residency = 1000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -526,7 +526,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x32", .flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 166, - .target_residency = 500, + .target_residency = 1500, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -534,7 +534,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x40", .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 300, - .target_residency = 900, + .target_residency = 2000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -542,7 +542,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x50", .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 600, - .target_residency = 1800, + .target_residency = 5000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -550,7 +550,7 @@ static struct cpuidle_state hsw_cstates[] __initdata = { .desc = "MWAIT 0x60", .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 2600, - .target_residency = 7700, + .target_residency = 9000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -570,7 +570,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x01", .flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_ALWAYS_ENABLE, .exit_latency = 10, - .target_residency = 20, + .target_residency = 120, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -578,7 +578,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x10", .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 40, - .target_residency = 100, + .target_residency = 1000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -586,7 +586,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x20", .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 133, - .target_residency = 400, + .target_residency = 1000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -594,7 +594,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x32", .flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 166, - .target_residency = 500, + .target_residency = 2000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -602,7 +602,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x40", .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 300, - .target_residency = 900, + .target_residency = 4000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -610,7 +610,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x50", .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 600, - .target_residency = 1800, + .target_residency = 7000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -618,7 +618,7 @@ static struct cpuidle_state bdw_cstates[] __initdata = { .desc = "MWAIT 0x60", .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 2600, - .target_residency = 7700, + .target_residency = 9000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -639,7 +639,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x01", .flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_ALWAYS_ENABLE, .exit_latency = 10, - .target_residency = 20, + .target_residency = 120, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -647,7 +647,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x10", .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 70, - .target_residency = 100, + .target_residency = 1000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -655,7 +655,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x20", .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 85, - .target_residency = 200, + .target_residency = 600, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -663,7 +663,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x33", .flags = MWAIT2flg(0x33) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 124, - .target_residency = 800, + .target_residency = 3000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -671,7 +671,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x40", .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 200, - .target_residency = 800, + .target_residency = 3200, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -679,7 +679,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x50", .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 480, - .target_residency = 5000, + .target_residency = 9000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -687,7 +687,7 @@ static struct cpuidle_state skl_cstates[] __initdata = { .desc = "MWAIT 0x60", .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 890, - .target_residency = 5000, + .target_residency = 9000, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { @@ -708,7 +708,7 @@ static struct cpuidle_state skx_cstates[] __initdata = { .desc = "MWAIT 0x01", .flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_ALWAYS_ENABLE, .exit_latency = 10, - .target_residency = 20, + .target_residency = 300, .enter = &intel_idle, .enter_s2idle = intel_idle_s2idle, }, { -- https://clearlinux.org