-----Original Message-----
From: Jon Medhurst (Tixy) [mailto:t...@linaro.org]
Sent: 19 November 2012 15:41
To: Viresh Kumar
Cc: Andrey Konovalov; PDSW-power-team; Lists linaro-dev
Subject: Re: [GIT PULL]; big LITTLE MP master v12
On Sun, 2012-11-18 at 10:40 +0530, Viresh Kumar wrote:
Hi Andrey,
Please pull big-LITTLE-MP-master-v12 with following updates:
- Based on v3.7-rc5
- Stats:
- Total Patches: 62
- New Patches: 1
- genirq: Add default affinity mask command line option in
misc-patches branch
- top 3 patches in: sched-pack-small-tasks-v1
- top 2 patches in: task-placement-v2
- additional patch in: config-fragments
- Dropped patches/branches (as they are managed in experimental
merge branch): 20
- patches in per-entity-load-tracking-with-core-sched-v1: 15
- Updated Patches: 0
This version increases Android boot time by a factor of 3, from 91
seconds to 257 seconds, this is comparing it with the version of the
master-v12 branch created on Nov 15th. Looking at the differences in
the
code, one obvious thing which stands out is big-LITTLE-MP.conf now has:
CONFIG_HMP_VARIABLE_SCALE=y
CONFIG_HMP_FREQUENCY_INVARIANT_SCALE=y
If I remove this then boot time goes back to 90 seconds.
Also, if I build without big-LITTLE-MP.conf the I get a build error:
kernel/sched/fair.c: In function 'update_entity_load_avg':
kernel/sched/fair.c:1469:26: error: 'struct sched_entity' has no member
named 'cfs_rq'
--
Tixy
---------------------x--------------------------x--------------------
---
The following changes since commit
77b67063bb6bce6d475e910d3b886a606d0d91f7:
Linux 3.7-rc5 (2012-11-11 13:44:33 +0100)
are available in the git repository at:
git://git.linaro.org/arm/big.LITTLE/mp.git big-LITTLE-MP-master-v12
for you to fetch changes up to
f942092bd1008de7379b4a52d38dc03de5949fc8:
Merge branches 'arm-multi_pmu_v2', 'hw-bkp-v7.1-debug-v1',
'task-placement-v2', 'misc-patches', 'config-fragments' and
'sched-pack-small-tasks-v1' into big-LITTLE-MP-master-v12-v2
(2012-11-17 09:29:41 +0530)
----------------------------------------------------------------
Ben Segall (1):
sched: Maintain per-rq runnable averages
Chris Redpath (1):
ARM: Experimental Frequency-Invariant Load Scaling Patch
Dietmar Eggemann (1):
ARM: hw_breakpoint: v7.1 self-hosted debug powerdown support
Jon Medhurst (1):
ARM: sched: Avoid empty 'slow' HMP domain
Liviu Dudau (2):
Revert "sched: secure access to other CPU statistics"
linaro/configs: big-LITTLE-MP: Enable the new tunable sysfs
interface by default.
Lorenzo Pieralisi (1):
ARM: kernel: provide cluster to logical cpu mask mapping API
Marc Zyngier (1):
ARM: perf: add guest vs host discrimination
Mark Rutland (1):
ARM: perf: register cpu_notifier at driver init
Morten Rasmussen (15):
sched: entity load-tracking load_avg_ratio
sched: Task placement for heterogeneous systems based on task
load-tracking
sched: Forced task migration on heterogeneous systems
sched: Introduce priority-based task migration filter
ARM: Add HMP scheduling support for ARM architecture
ARM: sched: Use device-tree to provide fast/slow CPU list for
HMP
ARM: sched: Setup SCHED_HMP domains
sched: Add ftrace events for entity load-tracking
sched: Add HMP task migration ftrace event
sched: SCHED_HMP multi-domain task migration control
sched: Enable HMP priority filter by default
sched: Only down migrate low priority tasks if allowed by
affinity mask
linaro/configs: Enable HMP priority filter by default
sched: SD_SHARE_POWERLINE buddy selection fix
ARM: TC2: Re-enable SD_SHARE_POWERLINE
Olivier Cozette (1):
ARM: Change load tracking scale using sysfs
Paul Turner (15):
sched: Track the runnable average on a per-task entity basis
sched: Aggregate load contributed by task entities on parenting
cfs_rq
sched: Maintain the load contribution of blocked entities
sched: Add an rq migration call-back to sched_class
sched: Account for blocked load waking back up
sched: Aggregate total task_group load
sched: Compute load contribution by a group entity
sched: Normalize tg load contributions against runnable time
sched: Maintain runnable averages across throttled periods
sched: Replace update_shares weight distribution with per-
entity
computation
sched: Refactor update_shares_cpu() -> update_blocked_avgs()
sched: Update_cfs_shares at period edge
sched: Make __update_entity_runnable_avg() fast
sched: Introduce temporary FAIR_GROUP_SCHED dependency for
load-tracking
sched: implement usage tracking
Peter Zijlstra (1):
sched: Describe CFS load-balancer
Sudeep KarkadaNagesha (9):
ARM: perf: allocate CPU PMU dynamically at probe time
ARM: perf: consistently use struct perf_event in arm_pmu
functions
ARM: perf: check ARMv7 counter validity on a per-pmu basis
ARM: perf: replace global CPU PMU pointer with per-cpu pointers
ARM: perf: register CPU PMUs with idr types
ARM: perf: set cpu affinity to support multiple PMUs
ARM: perf: set cpu affinity for the irqs correctly
ARM: perf: remove spaces in CPU PMU names
ARM: perf: save/restore pmu registers in pm notifier
Thomas Gleixner (1):
genirq: Add default affinity mask command line option
Vincent Guittot (5):
sched: add a new SD SHARE_POWERLINE flag for sched_domain
sched: pack small tasks
sched: secure access to other CPU statistics
sched: pack the idle load balance
ARM: sched: clear SD_SHARE_POWERLINE
Viresh Kumar (5):
Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency
for load-tracking"
configs: Add config fragments for big LITTLE MP
linaro/configs: Update big LITTLE MP fragment for task
placement work
config-frag/big-LITTLE: Use device-tree to provide fast/slow
CPU
list for HMP
Merge branches 'arm-multi_pmu_v2', 'hw-bkp-v7.1-debug-v1',
'task-placement-v2', 'misc-patches', 'config-fragments' and
'sched-pack-small-tasks-v1' into big-LITTLE-MP-master-v12-v2
Will Deacon (2):
ARM: perf: return NOTIFY_DONE from cpu notifier when no
available PMU
ARM: perf: consistently use arm_pmu->name for PMU name
Documentation/devicetree/bindings/arm/pmu.txt | 3 +
Documentation/kernel-parameters.txt | 9 +
arch/arm/Kconfig | 85 ++
arch/arm/include/asm/perf_event.h | 5 +
arch/arm/include/asm/pmu.h | 40 +-
arch/arm/include/asm/topology.h | 34 +
arch/arm/kernel/hw_breakpoint.c | 57 +
arch/arm/kernel/perf_event.c | 103 +-
arch/arm/kernel/perf_event_cpu.c | 169 ++-
arch/arm/kernel/perf_event_v6.c | 130 +-
arch/arm/kernel/perf_event_v7.c | 295 ++--
arch/arm/kernel/perf_event_xscale.c | 161 +-
arch/arm/kernel/topology.c | 125 ++
arch/ia64/include/asm/topology.h | 1 +
arch/tile/include/asm/topology.h | 1 +
include/linux/sched.h | 29 +
include/linux/topology.h | 3 +
include/trace/events/sched.h | 153 ++
kernel/irq/irqdesc.c | 21 +-
kernel/sched/core.c | 16 +
kernel/sched/debug.c | 39 +-
kernel/sched/fair.c | 1942
++++++++++++++++++++++---
kernel/sched/sched.h | 65 +-
linaro/configs/big-LITTLE-MP.conf | 13 +
24 files changed, 2943 insertions(+), 556 deletions(-)
create mode 100644 linaro/configs/big-LITTLE-MP.conf
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