Android lollipop performance issue

[sankarsalla]

Hi All,

I am working on imx6 customized board.

After compilation complete i have ported all images in to my board,android running well in my system.

But performance is very low,please help me how to improve android lollipop performance.  

Thanks in advance,

Sankar. 

[igorpadykov]

Hi Sankar

to find root cause for low performance one can try

linux with minimal configuration, check if this is caused by gpu.

Also one can try mmdc profile tool

MMDC Profiling Tool 

Best regards
igor
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[sankarsalla]

Hi Igor,

Thanks for quick reply.

Actually in my device unused services are running,may because of that device is slow.

Can you please tell me how to stop unused services in my device.

Thanks & Regards,

Sanakr. 

[sankarsalla]

Hi Igor,

I have checked my cpu usage with top command.

In Top log Kworker is continuously running and it takes minimum  30% of cpu.

Can you please tell me what is kworker and how to reduce the usage of kworker.

For your reference please find below log.

User 1%, System 26%, IOW 0%, IRQ 0%
User 6 + Nice 0 + Sys 147 + Idle 410 + IOW 0 + IRQ 0 + SIRQ 0 = 563

PID PR CPU% S #THR VSS RSS PCY UID Name
1334 1 30% D 1 0K 0K root kworker/u4:1
1332 1 1% S 1 0K 0K root kworker/u4:0
1396 0 1% R 1 4468K 1044K root top
1194 1 0% S 1 0K 0K root kworker/u4:36
8 1 0% S 1 0K 0K root rcu_preempt
9 0 0% S 1 0K 0K root rcu_bh
10 0 0% S 1 0K 0K root rcu_sched
11 1 0% S 1 0K 0K root migration/1
12 1 0% S 1 0K 0K root ksoftirqd/1
13 1 0% S 1 0K 0K root kworker/1:0
14 1 0% S 1 0K 0K root kworker/1:0H
15 1 0% S 1 0K 0K root khelper
16 1 0% S 1 0K 0K root kdevtmpfs
17 1 0% S 1 0K 0K root suspend_sys_syn
18 1 0% S 1 0K 0K root suspend
19 0 0% S 1 0K 0K root kworker/0:1
20 1 0% S 1 0K 0K root kworker/1:1
21 1 0% S 1 0K 0K root writeback
22 1 0% S 1 0K 0K root bioset
23 1 0% S 1 0K 0K root crypto
24 1 0% S 1 0K 0K root kblockd
25 0 0% S 1 0K 0K root ata_sff
26 0 0% S 1 0K 0K root khubd
42 0 0% S 1 0K 0K root ipu1_task
43 0 0% S 1 0K 0K root ipu1_task
44 1 0% S 1 0K 0K root rpciod
45 1 0% S 1 0K 0K root kswapd0
46 0 0% S 1 0K 0K root ksmd
47 1 0% S 1 0K 0K root fsnotify_mark
48 0 0% S 1 0K 0K root nfsiod
84 0 0% S 1 0K 0K root kworker/0:2
85 0 0% S 1 0K 0K root spi32766
92 0 0% S 1 0K 0K root ci_otg
93 1 0% S 1 0K 0K root ssd254x_wq
94 0 0% S 1 0K 0K root irq/364-1-0055
95 1 0% S 1 0K 0K root dm_bufio_cache
96 0 0% S 1 0K 0K root kworker/u5:0
97 0 0% S 1 0K 0K root hci0
98 0 0% S 1 0K 0K root hci0
99 1 0% S 1 0K 0K root kworker/u5:1
100 1 0% S 1 0K 0K root cfinteractive
101 1 0% S 1 0K 0K root galcore workque
102 1 0% S 1 0K 0K root mmcqd/0
104 0 0% S 1 0K 0K root mmcqd/3
105 1 0% S 1 0K 0K root mmcqd/3boot0
106 1 0% S 1 0K 0K root mmcqd/3boot1
107 1 0% S 1 0K 0K root mmcqd/3rpmb
108 0 0% S 1 0K 0K root galcore daemon
109 0 0% S 1 0K 0K root galcore daemon
1 1 0% S 1 3648K 500K root /init
153 1 0% S 1 0K 0K root krfcommd
154 0 0% S 1 0K 0K root deferwq
155 0 0% S 1 0K 0K root f_mtp
156 1 0% S 1 0K 0K root file-storage
157 0 0% S 1 2616K 400K root /sbin/ueventd
158 0 0% S 1 2616K 140K root /sbin/watchdogd
160 0 0% S 1 0K 0K root kworker/0:1H
161 1 0% S 1 0K 0K root kworker/1:1H
162 1 0% S 1 0K 0K root jbd2/mmcblk3p2-
163 1 0% S 1 0K 0K root ext4-dio-unwrit
164 1 0% S 1 0K 0K root jbd2/mmcblk3p3-
165 0 0% S 1 0K 0K root ext4-dio-unwrit
166 1 0% S 1 0K 0K root jbd2/mmcblk3p5-
167 0 0% S 1 0K 0K root ext4-dio-unwrit
169 1 0% S 1 0K 0K root cfg80211
170 1 0% S 1 0K 0K root wl12xx_wq
171 0 0% S 5 13264K 2176K logd /system/bin/logd
172 0 0% S 1 3688K 292K fg root /sbin/healthd
173 1 0% S 1 4484K 1088K root /system/bin/lmkd
174 1 0% S 1 3248K 396K system /system/bin/servicemanager
175 1 0% S 3 9772K 1848K root /system/bin/vold
176 1 0% S 14 180224K 8952K fg system /system/bin/surfaceflinger
177 0 0% S 1 3148K 412K bluetoot /system/bin/uim-sysfs
181 1 0% S 9 19764K 1480K root /system/bin/netd
182 0 0% S 1 3840K 824K root /system/bin/debuggerd
183 1 0% S 2 13980K 3908K fg drm /system/bin/drmserver
184 1 0% S 9 107832K 10200K fg media /system/bin/mediaserver
185 1 0% S 1 3200K 424K install /system/bin/installd
186 1 0% S 1 6284K 1812K fg keystore /system/bin/keystore
187 0 0% S 7 16676K 1480K root /system/bin/rild
188 1 0% S 6 1161012K 44412K root zygote
190 0 0% S 5 13364K 416K media_rw /system/bin/sdcard
193 0 0% S 4 7740K 148K root /sbin/adbd
198 1 0% S 1 0K 0K root kauditd
210 1 0% S 1 0K 0K root irq/312-wl18xx
462 1 0% S 69 1432996K 69092K fg system system_server
526 1 0% S 14 1176384K 31756K bg u0_a5 android.process.media
545 1 0% S 27 1361272K 57260K fg u0_a14 com.android.systemui
663 1 0% S 19 1187876K 33968K bg u0_a33 com.android.inputmethod.latin
717 1 0% S 28 1193944K 35156K fg radio com.android.phone
729 1 0% S 18 1329908K 48056K fg u0_a7 com.android.launcher
794 1 0% S 16 1179544K 31044K bg u0_a2 android.process.acore
835 1 0% S 12 1171268K 25148K bg u0_a40 com.android.printspooler
864 1 0% S 11 1169344K 25028K bg u0_a6 com.android.externalstorage
913 1 0% S 13 1174564K 28068K bg u0_a26 com.android.deskclock
962 0 0% S 12 1171140K 26876K bg u0_a36 com.android.music
983 1 0% S 12 1172040K 28248K bg u0_a1 com.android.providers.calendar
996 1 0% S 11 1169416K 24284K bg system com.android.keychain
1024 1 0% S 11 1169996K 24556K bg u0_a8 com.android.managedprovisioning
1045 1 0% S 11 1169332K 24448K bg u0_a11 com.android.onetimeinitializer
1062 1 0% S 16 1177140K 27428K bg u0_a21 com.android.calendar
1089 0 0% S 17 1183676K 32080K bg u0_a29 com.android.email
1113 1 0% S 11 1169436K 25128K bg u0_a10 com.android.musicfx
1129 0 0% S 12 1173008K 26212K bg u0_a30 com.android.exchange
1208 0 0% S 1 3208K 784K root /system/bin/sh
1254 1 0% S 1 0K 0K root kworker/u4:33
1255 0 0% S 1 0K 0K root kworker/u4:34
1262 0 0% S 1 0K 0K root kworker/u4:42
1300 1 0% S 1 4572K 1148K root pppd
1357 0 0% S 1 0K 0K root kworker/0:0
1399 1 0% S 14 1336704K 43860K bg system com.android.settings
152 0 0% S 1 0K 0K root binder
2 1 0% S 1 0K 0K root kthreadd
3 0 0% S 1 0K 0K root ksoftirqd/0
5 0 0% S 1 0K 0K root kworker/0:0H
7 0 0% S 1 0K 0K root migration/0

Thanks & Regards,

Sankar.