Qualcomm Android GO Performance Tuning Guide Kba 180720005030 1

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机密和专有信息——高通技术股份有限公司
Qualcomm Technologies, Inc.
Qualcomm Android GO
Performance Tuning Guide
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Revision History
Revision
Date
Description
A
Jun 25,2018
Initial Android GO version
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PAGE 4
Agenda
▪Android GO Introduction and Chipset Configuration
▪Android GO Performance Tuning Preparation
▪Android GO memory map Configuration and tuning
▪Android GO app launch latency Configuration and tuning
▪Android GO Scroll performance and benchmark
▪Google doc and Google GTS performance for Android GO
▪Android GO Performance Document
▪Android GO Performance Debugging Tools
▪Android GO Performance Debug Common command
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PAGE 5
Android GO Introduction and Chipset
Configuration
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Android GO Introduction and Chipset Configuration
Android Go, also known as Android Oreo (Go edition), is a stripped-down
version of Android designed to run on entry-level smartphones. It’s comprised
of three optimized areas —the operating system, Google Play Store, and
Google apps —which have been reimagined to provide a better
experience on lesser hardware.
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PAGE 7
Android GO Introduction and HW Configuration
Feature
MSM8909
CPU
Quad Core
4 x A9 at 1.267 GHz
or 4 x A9 at 1.094 GHz
Memory
1 x32, 533MHz LPDDR3
GPU
Adreno 304 at 456 MHz
Display
up
to HD (720p) at 60 fps
Android GO RAM
512MB to 1GB
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PAGE 8
Android GO Introduction and HW Configuration
▪512 MB RAM devices
▪Screen size and camera resolution limits
▪Disk space requirements
▪Minimum User Data Partition Size
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PAGE 9
Android GO Performance Tuning
Preparation
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PAGE 10
Android GO Performance Tuning Preparation
▪Performance Tuning Build Preparation
▪Kernel configuration verification
▪Always use msm8909-perf_defconfig for Performance measurement
▪The file location for MSM8909 is /kernel/msm-3.18/arch/arm/configs/msm8909-
perf_defconfig
▪Check if the following build config are in your build or not, if have, remove them.
Refer to Appendix-1: Kernel Configuration Must Remove for details
▪Remove the relevant debug log
▪Performance Sanity Testing
▪Run device analyzer get configuration details
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PAGE 11
Android GO memory map
Configuration and tuning
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Android GO memory map Configuration and tuning
▪Free memory criterion base on display resolution
▪For free memory test, please run the script from google script file:
▪perf-scripts-xxxx-xxx-xxx.tar
▪Detail doc:
▪KBA-180601003251, Android Go cert performance testing check
▪QCOM reference data:
▪80-PF735-4A MSM8909 O-GO Android 3.0.1 Performance dashboard reports
▪KBA-180301035309 O-GO/O-MR1 8917 Performance dashboard reports
▪Property for setup Android OMR1 to GO edition
▪ro.config.low_ram=true
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PAGE 13
Android GO memory map Configuration and tuning
▪Memory tuning
▪MEMCG + ULMKD
▪Android go disable the kernel lowmemory killer, enable MEMCG + ULMKD for
memory reclaim. For detail, please refer this doc:
▪KBA-180528202834 ULMK and Memcg overview on android Go
▪Enable “Swap to zRAM”
▪Configure the zRAM size to 75% in the fstab file.
▪# For 512MB Go device, size = 384MB
▪# For 1GB Go device, size = 768MB
Change:
https://source.codeaurora.org/quic/la/device/qcom/common
/commit/?id=424c031d173f28d7557812f5e1a10acfce03ef71
▪Calculating a device’s free memory
▪QCOM method
▪Refer the doc:
▪80-NV303-1 Memory Optimization Guidelines:
Section-8.2 Generate the memory map
▪Google method
▪Refer the google doc:
▪GMS Go Requirements.pdf
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PAGE 14
Android GO memory map Configuration and tuning
▪Memory tuning(Others)
▪Enable LZ4 compression for zRAM
▪Kernel config:CONFIG_ZRAM_LZ4_COMPRESS=y
▪write /sys/block/zram0/comp_algorithm lz4
▪Configure jemalloc for low memory
▪BoardConfig.mk: MALLOC_SVELTE := true
▪More detail please refer google doc:
▪Android Go Device Configuration Guide
▪How to debug when GTS memory test(perf-scripts-xxxx-xxx-xxx.tar) fail
1.Catch on boot memory log by command:
adb shell cat /proc/meminfo
adb shell dumpsys meminfo
adb shell cat /proc/iomem
2.Generate the memory map base on doc
80-NV303-1 Memory Optimization Guidelines:
- Section-8.2 Generate the memory map
3.Provide those data to qcom from case, qcom will check which part get problem
,and share the suggestion
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PAGE 15
Android GO app launch latency
Configuration and tuning
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PAGE 16
Android GO app launch latency Configuration and tuning
▪Android go redesign much pre-install app like chrome, youtobe.etc to save
memory, disk, data call.
3rd party app also should be optimized for android go.
Android go app launch should mainly focus on those apps:
Android go native app
GMS go app
3
rd party app
Gallery
Files Go
Facebook Lite
Camera
Play Stores
Twitter
Contacts
Chrome
Angry Birds
Messages
Gmail Go
Temple Run2
Clock
Maps Go
…
Settings
YouTube Go
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PAGE 17
Android GO app launch latency Configuration and tuning
▪App launch latency Configuration :
▪Perf_lock boost Parameters:
Location: vendor/qcom/proprietary/android-perf/configs/msm8909/perfboostsconfig.xml
▪F2FS enable(google suggestion):
▪device/qcom/msm8909go/BoardConfig.mk
TARGET_USERIMAGES_USE_EXT4 := true
TARGET_USERIMAGES_USE_F2FS := true
BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE := f2fs
BOARD_PERSISTIMAGE_FILE_SYSTEM_TYPE := ext4
Parameters description(hint id:0x00001081)
ID
Timeout
MPCTLV3_TOGGLE_POWER_COLLAPSE
0x40400000
MPCTLV3_MIN_ONLINE_CPU_CLUSTER_BIG
0x41000000
MPCTLV3_MIN_FREQ_CLUSTER_BIG_CORE_0
0x40800000
MPCTLV3_KSM_RUN_STATUS
0x42000000
MPCTLV3_DISABLE_PPR_DURING_LAUNCH
0x42C18000
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PAGE 18
Android GO app launch latency Configuration and tuning
▪App launch latency Configuration :
▪ART mode in Go
▪On default , the app should be in quicken mode
▪Command to dump ART mode of app:
▪adb shell dumpsys package package_name
▪Command to rorce compile apk to specific mode:
▪adb shell cmd package compile -m quicken –f package_name
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PAGE 19
Android GO app launch latency Configuration and tuning
▪App launch latency test:
▪QCOM method refer doc:
▪KBA-170907023959 PPT Service Lab Performance test
▪Performance Dashboard:
▪80-PF735-4A MSM8909 O-GO Android 3.0.1 Performance dashboard reports
▪KBA-180301035309 O-GO/O-MR1 8917 Performance dashboard reports
▪Google method by script please refer doc:
▪KBA-180601003251, Android Go cert performance testing check
▪perf-scripts-xxxx-xxx-xxx\docs\instructions.pdf
▪Performance Dashboard:
▪Need provide your test data to qcom for checking if get gap with qcom
▪App launch latency debug:
▪doc:80-P3301-1 ANALYZING AND OPTIMIZING APPLICATION LAUNCH
LATENCY
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PAGE 20
Android GO Scroll performance and
benchmark
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PAGE 21
Android GO Scroll performance and benchmark tuning
▪Scroll performance and benchmark test method:
▪KBA-170907023959 PPT Service Lab Performance test
▪Perf Dashboard
▪80-PF735-4A MSM8909 O-GO Android 3.0.1 Performance dashboard reports
▪KBA-180301035309 O-GO/O-MR1 8917 Performance dashboard reports
▪DEBUG doc:
Target
KBA
Title
ALL
KBA
-170518235211
Condition::
waitRelative() to timeout early or delayed issue
ALL
KBA
-161207172441
How to calculate FPS
ALL
KBA
-170608023831
one example of wrong property set usage which impact UX performance
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PAGE 22
Google doc and Google GTS
performance for Android GO
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PAGE 23
Google doc and Google GTS performance for Android GO
▪Google doc for android go(google provide)
▪< Android Go Device Configuration Guide.pdf >
▪< GMS Go Requirements.pdf >
▪Google GTS performance test for android go
▪Test script: perf-scripts-xxxx-xxx-xxx.tar(google provide)
▪Introduce doc:
▪perf-scripts-xxxx-xxx-xxx\docs\instructions.pdf
▪KBA-180601003251, Android Go cert performance testing check
▪More：
▪Google GTS performance test is import, and must pass it.
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PAGE 24
Android GO Performance Document
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PAGE 25
▪Common Performance Debugging Manual
▪80-P0584-1 Common Performance Issues Debugging Guide
▪80-NJ221-1 Android Memory Leak Analysis Guide
▪80-NM449-1 Android User Experience Performance Overview Mem Analysis
▪System Performance Debugging
▪80-NM328-709 Battery Current Limit and Tuning Overview
▪Perflock
▪80-NT384-1 Perflock API overview
▪80-NR256-2 MPCTL feature
▪80-NT384-2 PERFLOCK IN ANDROID O
▪KBA-170823030536 explain for qualcomm predefined perflock
▪Android-O known issue: KBA-171207004924
Android GO Performance Document (1)
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PAGE 26
▪Android UX Improvement/Debugging Guide
▪FPS
▪80-NP885-1 Graphics Power Performance Overview
▪80-P0397-1 A Fence Sync Object Overview
▪Android Boot
▪80-N9266-1 Android Boot Time Measurement
▪Memory
▪80-NJ221-1 ANDROID MEMORY LEAK ANALYSIS GUIDE
▪80-NJ395-1 Linux_Memory_Management_Overview
▪80-NV303-1 Memory_Optimization_Guidelines
▪Other
▪80-P5228-1 MEMORY LATENCY GOVERNOR OVERVIEW
Android GO Performance Document (2)
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PAGE 27
Android GO Performance Document (3)
Target
KBA
Title
ALL
KBA
-160720223639
Bootanimation
FPS optimization
ALL
KBA
-160919232945
How to debug boot time performance
ALL
KBA
-161122000928
1st boot become longer after OTA
ALL
KBA
-161215230811
Latency of system waken up by proximity sensor
ALL
KBA
-161207171534
Multi task package scan
ALL
KBA
-161228002343
WeChat lucky money boost
ALL
KBA
-170606202440
MTP performance optimization
ALL
KBA
-171221001026
LK(Little Kernel) Breakdown
UX performance KBA
System performance KBA
Target
KBA
Title
All
KBA
-160726183346
How to debug IO performance issue
All
KBA
-161003054532
display underrun issue debug guide
All
KBA
-161002045417
device wakeup time analysis and breakdown
All
KBA
-161020010256
MALLOC_IMPL
配置
All
KBA
-161112021800
kernel config sanity check
All
KBA
-161226222454
How to configure SLUB related kernel
All
KBA
-170324001656
How to inspect the meta info and integrity of jpeg file
All
KBA
-170518235211
Condition::
waitRelativewait() to timeout early or delayed issue
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PAGE 28
Android GO Performance Document (4)
Target
KBA
Title
All
KBA
-
160724222150
How to disable QCOM optimizationand ART
All
KBA
-
160803171155
How to collect offline systrace
All
KBA
-
161001235906
Systrace
tips
All
KBA
-
161023190436
Linker debug tips
All
KBA
-
161122014243
How to add
systrace in java and native code
All
KBA
-
161123204012
common performance issue and debug
All
KBA
-
161027185718
bootchart usage usage
All
KBA
-161112022251
method to capture device boot up ftrace logs
All
KBA
-170114011739
Android memory map generation and debugging
All
KBA
-170114011858
how to customize splash logo without mem leak
All
KBA
-
170404214811
How to analyze and debug kernel static memory size
All
KBA
-170114011739
Android memory map generation and debugging
Debugging Tool, Debugging Methods KBA
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PAGE 29
Android GO Performance Debugging
Tools
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PAGE 30
▪Tools
▪Systrace
General Debugging tool for performance debugging.
http://developer.android.com/tools/help/systrace.html
▪Traceview
Profiling tool for Java method
http://developer.android.com/intl/zh-cn/tools/help/traceview.html
▪Hierarchy Viewer
Visualize tool to exam View layout Hierarchy
http://developer.android.com/intl/zh-cn/tools/help/hierarchy-viewer.html
▪Perfdump tool
80-P8754-73 Perfdump Overview
Android GO Performance Debugging Tools
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PAGE 31
Android GO Performance Common
command
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PAGE 32
Android GO Performance Debug Common command
▪CPU performance mode
adb shell stop thermal-engine
adb shell "echo 1 > /sys/devices/system/cpu/cpu0/online"
adb shell "echo 1 > /sys/devices/system/cpu/cpu1/online"
adb shell "echo 1 > /sys/devices/system/cpu/cpu2/online"
adb shell "echo 1 > /sys/devices/system/cpu/cpu3/online"
adb shell "echo performance >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
adb shell "echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor"
adb shell "echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor"
adb shell "echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor"
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PAGE 33
Android GO Performance debug Common command
▪Set DDR to max freq
adb shell "echo 1 > /sys/kernel/debug/msm-bus-dbg/shell-client/mas"
adb shell "echo 512 > /sys/kernel/debug/msm-bus-dbg/shell-client/slv“
adb shell "echo 1000000000 > /sys/kernel/debug/msm-bus-dbg/shell-client/ib“
adb shell "echo 1 > /sys/kernel/debug/msm-bus-dbg/shell-client/update_request"
▪Get CPU current freq
adb shell cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
▪Get GPU current freq
adb shell cat /sys/class/kgsl/kgsl-3d0/devfreq/cur_freq
▪GPU performance mode
adb shell stop thermal-engine
adb shell "echo 10000000 > /sys/class/kgsl/kgsl-3d0/idle_timer"
adb shell "echo performance > /sys/class/kgsl/kgsl-3d0/devfreq/governor“
adb shell "echo 647000000> /sys/class/kgsl/kgsl-3d0/gpuclk"
▪Get DDR current freq
adb shell cat /sys/kernel/debug/clk/bimc_clk/measure
▪Disable all level LPM
adb shell "stop perf-hal-1-0"
adb shell "echo Y > /sys/module/lpm_levels/parameters/sleep_disabled“
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PAGE 34
Android GO Performance debug Common command
▪how to disable thermal
▪Thermal:
adb root
adb shell stop thermal-engine
▪How to start/stop perflock HAL
▪disable:
adb root
adb shell "stop perf-hal-1-0“
▪enable (default enabled)
adb root
adb shell "start perf-hal-1-0"
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PAGE 35
CONFIG_LOG_BUF_MAGIC=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_L2TP_DEBUGFS=y
CONFIG_OF_CORESIGHT=y
CONFIG_MSM_CAMERA_DEBUG=y
CONFIG_MSMB_CAMERA_DEBUG=y
CONFIG_FB_MSM_MDSS_XLOG_DEBUG=y
CONFIG_MSM_SMD_DEBUG=y
CONFIG_IOMMU_DEBUG=y
CONFIG_IOMMU_TESTS=y
CONFIG_PREEMPT_TRACER=y
CONFIG_SCHED_DEBUG=y
CONFIG_DEBUG_KMEMLEAK=y
ONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_LIST=y
CONFIG_LOCKUP_DETECTOR=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_BUS_VOTER=y
CONFIG_SLUB_DEBUG=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_DEBUG_BUGVERBOSE=y
Appendix - 1: Kernel Configuration Must Remove
CONFIG_CORESIGHT=y
CONFIG_CORESIGHT_EVENT=y
CONFIG_HAVE_CORESIGHT_SINK=y
CONFIG_CORESIGHT_FUSE=y
CONFIG_CORESIGHT_CTI=y
CONFIG_CORESIGHT_CTI_SAVE_DISABLE=y
CONFIG_CORESIGHT_CSR=y
CONFIG_CORESIGHT_TMC=y
CONFIG_CORESIGHT_TPIU=y
CONFIG_CORESIGHT_FUNNEL=y
CONFIG_CORESIGHT_REPLICATOR=y
CONFIG_CORESIGHT_TPDA=y
CONFIG_CORESIGHT_TPDM=y
CONFIG_CORESIGHT_TPDM_DEFAULT_ENABLE
CONFIG_CORESIGHT_DBGUI
CONFIG_CORESIGHT_STM=y
CONFIG_CORESIGHT_STM_DEFAULT_ENABLE
CONFIG_CORESIGHT_HWEVENT=y
CONFIG_CORESIGHT_ETM
CONFIG_CORESIGHT_ETMV4
CONFIG_CORESIGHT_REMOTE_ETM
CONFIG_CORESIGHT_QPDI=y
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PAGE 36
All data and information contained in or disclosed by this document is confidential and proprietary information of Qualcomm
Technologies, Inc. and all rights therein are expressly reserved. By accepting this material the recipient agrees that this
material and the information contained therein is to be held in confidence and in trust and will not be used, copied,
reproduced in whole or in part, nor its contents revealed in any manner to others without the express written permission of
Qualcomm Technologies, Inc.
© 2013 QUALCOMM Incorporated and/or its subsidiaries. All Rights Reserved.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries.
Other products and brand names may be trademarks or registered trademarks of their respective owners
References in this presentation to “Qualcomm” may mean Qualcomm Incorporated, Qualcomm Technologies, Inc., and/or
other subsidiaries or business units within the Qualcomm corporate structure, as applicable.
Qualcomm Incorporated includes Qualcomm’s licensing business, QTL, and the vast majority of its patent portfolio.
Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries,
substantially all of Qualcomm’s engineering, research and development functions, and substantially all of its product and
services businesses,
including its semiconductor business.
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