android内存统计
由于linux内核和native service使用的内存在settings中统计不出来，因此对于分析内存相关问题时，使用procrank命令则能比较清晰的获取每个进程占用的内存资源
$adb shell procrank
PID Vss Rss Pss Uss cmdline159 49668K 39664K 19857K 17016K system_server
236 29688K 29676K 11966K 10500K com.android.phone
274 29056K 29036K 11682K 9936K com.google.process.gapps
385 28520K 28496K 10982K 9488K com.android.mms
259 27344K 27316K 10276K 8980K android.process.acore
246 25968K 25940K 9324K 8120K android.process.acore
288 29680K 26072K 9232K 7944K com.android.settings
228 21968K 21932K 7823K 7028K com.baidu.input
669 24228K 24204K 7361K 6120K com.android.browser
121 26984K 26920K 7194K 4152K zygote
421 21956K 21920K 7096K 6068K com.dolphin.browser.cn
219 23624K 22012K 7049K 6028K com.android.systemui
645 23772K 23748K 6547K 5336K com.google.android.googlequicksearchbox
713 21432K 21400K 5358K 4220K com.antutu.MmsExtra
357 20252K 20224K 4267K 3332K com.android.deskclock
344 17816K 17784K 4047K 3288K android.process.media
412 18836K 18800K 3907K 3056K com.noshufou.android.su
434 17388K 17344K 3618K 2856K com.cooliris.media
328 16904K 16860K 3385K 2680K com.android.providers.calendar
404 15600K 15556K 2917K 2268K com.cyanogenmod.cmparts
444 15548K 15504K 2683K 2012K com.google.android.apps.uploader
122 4604K 4604K 2337K 1392K /system/bin/mediaserver
314 14388K 14344K 2205K 1540K zhangjia1936.autoswapon
369 14420K 14376K 1976K 1324K com.cyanogenmod.android.fotakill
120 1116K 1116K 644K 604K /system/bin/rild
1356 708K 700K 505K 500K procrank
326 1456K 1448K 452K 248K su
123 720K 712K 317K 200K /system/bin/dbus-daemon
118 828K 824K 269K 196K /system/bin/netd
117 600K 596K 227K 184K /system/bin/vold
126 416K 412K 190K 184K /system/bin/akmd
128 164K 164K 148K 148K /sbin/adbd
1355 332K 324K 133K 128K /system/bin/sh
1 184K 184K 123K 84K /init
125 444K 436K 122K 88K /system/bin/keystore
124 344K 336K 103K 96K /system/bin/installd
68 140K 140K 102K 64K /sbin/ueventd
116 292K 284K 82K 76K /system/bin/servicemanager
119 280K 272K 74K 68K /system/bin/debuggerd
RSS - Resident Set Size 实际使用物理内存（包含共享库占用的内存）
PSS - Proportional Set Size 实际使用的物理内存（比例分配共享库占用的内存）
USS - Unique Set Size 进程独自占用的物理内存（不包含共享库占用的内存）
使用adb shell dumpsys meminfo或ddms工具的dump device state也能统计内存信息
Applications Memory Usage (kB):
Uptime: 10092666 Realtime: 143044833
** MEMINFO in pid 274 [com.google.process.gapps] **
native dalvik other total
size: 4848 6855 N/A 11703
allocated: 4535 4071 N/A 8606
free: 176 2784 N/A 2960
(Pss): 2613 1239 7757 11609
(shared dirty): 584 1272 5404 7260
(priv dirty): 2588 1180 3940 7708
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 5 AssetManagers: 5
Local Binders: 25 Proxy Binders: 30
Death Recipients: 1
OpenSSL Sockets: 5
SQL
heap: 409 MEMORY_USED: 409
PAGECACHE_OVERFLOW: 92 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 7 38 googlesettings.db
1 33 66 gservices.db
1 24 116 talk.db
1 11 0 (attached) transient_talk_db
1 11 143 subscribedfeeds.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 236 [com.android.phone] **
native dalvik other total
size: 6656 6919 N/A 13575
allocated: 5581 3847 N/A 9428
free: 538 3072 N/A 3610
(Pss): 2899 967 8039 11905
(shared dirty): 752 1532 5468 7752
(priv dirty): 2864 896 5148 8908
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 5 AssetManagers: 5
Local Binders: 39 Proxy Binders: 46
Death Recipients: 2
OpenSSL Sockets: 0
SQL
heap: 1012 MEMORY_USED: 1012
PAGECACHE_OVERFLOW: 68 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 5 176 btopp.db
1 73 500 mmssms.db
1 4 82 telephony.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/Phone.apk:/resources.arsc: 178K
zip:/system/app/Bluetooth.apk:/resources.arsc: 267K
zip:/system/app/TelephonyProvider.apk:/resources.arsc: 1K
zip:/system/app/Stk.apk:/resources.arsc: 7K
** MEMINFO in pid 228 [com.baidu.input] **
native dalvik other total
size: 7608 5895 N/A 13503
allocated: 7304 2855 N/A 10159
free: 3 3040 N/A 3043
(Pss): 823 429 6569 7821
(shared dirty): 796 1840 5784 8420
(priv dirty): 784 144 5764 6692
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 14 Proxy Binders: 21
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/data/app/com.baidu.input-1.apk:/resources.arsc: 13K
** MEMINFO in pid 159 [system] **
native dalvik other total
size: 10072 8583 N/A 18655
allocated: 9125 5721 N/A 14846
free: 198 2862 N/A 3060
(Pss): 4563 1575 15043 21181
(shared dirty): 572 1200 5472 7244
(priv dirty): 4536 1520 10256 16312
Objects
Views: 0 ViewRoots: 0
AppContexts: 2 Activities: 0
Assets: 12 AssetManagers: 12
Local Binders: 139 Proxy Binders: 241
Death Recipients: 110
OpenSSL Sockets: 0
SQL
heap: 206 MEMORY_USED: 206
PAGECACHE_OVERFLOW: 45 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 25 82 settings.db
1 19 122 accounts.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/SettingsProvider.apk:/resources.arsc: 4K
zip:/system/app/DeskClock.apk:/resources.arsc: 28K
zip:/system/app/Settings.apk:/resources.arsc: 326K
zip:/system/app/Browser.apk:/resources.arsc: 91K
zip:/system/app/Mms.apk:/resources.arsc: 100K
zip:/system/app/SenseUI.apk:/resources.arsc: 193K
zip:/system/app/Phone.apk:/resources.arsc: 178K
zip:/system/app/Contacts.apk:/resources.arsc: 983K
** MEMINFO in pid 259 [android.process.acore] **
native dalvik other total
size: 6544 6535 N/A 13079
allocated: 6457 3718 N/A 10175
free: 78 2817 N/A 2895
(Pss): 3218 576 6459 10253
(shared dirty): 740 1568 5552 7860
(priv dirty): 3184 504 4468 8156
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 5 AssetManagers: 5
Local Binders: 14 Proxy Binders: 86
Death Recipients: 2
OpenSSL Sockets: 0
SQL
heap: 1080 MEMORY_USED: 1080
PAGECACHE_OVERFLOW: 267 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 401 500 contacts2.db
1 9 0 (attached) presence_db
1 16 50 :memory:
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/ContactsProvider.apk:/resources.arsc: 2K
zip:/system/app/ApplicationsProvider.apk:/resources.arsc: 10K
zip:/system/app/UserDictionaryProvider.apk:/resources.arsc: 1K
zip:/system/app/Contacts.apk:/resources.arsc: 983K
** MEMINFO in pid 404 [com.cyanogenmod.cmparts] **
native dalvik other total
size: 3052 5639 N/A 8691
allocated: 3023 2743 N/A 5766
free: 8 2896 N/A 2904
(Pss): 439 201 2289 2929
(shared dirty): 876 1816 5972 8664
(priv dirty): 388 112 1568 2068
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 2 Proxy Binders: 5
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/CMParts.apk:/resources.arsc: 297K
** MEMINFO in pid 288 [com.android.settings] **
native dalvik other total
size: 10708 6599 N/A 17307
allocated: 5315 3731 N/A 9046
free: 2316 2868 N/A 5184
(Pss): 3063 597 5537 9197
(shared dirty): 752 1560 5612 7924
(priv dirty): 3028 524 3720 7272
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 12 Proxy Binders: 24
Death Recipients: 2
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/Settings.apk:/resources.arsc: 326K
** MEMINFO in pid 246 [android.process.acore] **
native dalvik other total
size: 9588 6087 N/A 15675
allocated: 6241 3335 N/A 9576
free: 702 2752 N/A 3454
(Pss): 2787 502 5762 9051
(shared dirty): 756 1712 5520 7988
(priv dirty): 2752 420 3936 7108
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 3 AssetManagers: 3
Local Binders: 18 Proxy Binders: 20
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 73 MEMORY_USED: 73
PAGECACHE_OVERFLOW: 5 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 5 62 launcher.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/SenseUI.apk:/resources.arsc: 193K
** MEMINFO in pid 385 [com.android.mms] **
native dalvik other total
size: 5620 7367 N/A 12987
allocated: 5016 4486 N/A 9502
free: 131 2881 N/A 3012
(Pss): 2097 689 8132 10918
(shared dirty): 664 1592 5452 7708
(priv dirty): 2068 616 5960 8644
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 19 Proxy Binders: 33
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/Mms.apk:/resources.arsc: 100K
** MEMINFO in pid 713 [com.antutu.MmsExtra] **
native dalvik other total
size: 3884 5895 N/A 9779
allocated: 3412 2970 N/A 6382
free: 131 2925 N/A 3056
(Pss): 1154 416 3753 5323
(shared dirty): 792 1668 5660 8120
(priv dirty): 1116 336 2428 3880
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 6 Proxy Binders: 15
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 344 [android.process.media] **
native dalvik other total
size: 3400 5703 N/A 9103
allocated: 3365 2915 N/A 6280
free: 22 2788 N/A 2810
(Pss): 1112 266 2672 4050
(shared dirty): 844 1788 5856 8488
(priv dirty): 1068 180 1652 2900
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 4 AssetManagers: 4
Local Binders: 5 Proxy Binders: 10
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 439 MEMORY_USED: 439
PAGECACHE_OVERFLOW: 174 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 210 72 external-19161ef1.db
1 55 39 internal.db
1 8 116 downloads.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/DownloadProvider.apk:/resources.arsc: 9K
zip:/system/app/MediaProvider.apk:/resources.arsc: 2K
zip:/system/app/DrmProvider.apk:/resources.arsc: 3K
** MEMINFO in pid 444 [com.google.android.apps.uploader] **
native dalvik other total
size: 2820 5639 N/A 8459
allocated: 2698 2788 N/A 5486
free: 5 2851 N/A 2856
(Pss): 476 194 2029 2699
(shared dirty): 804 1832 5964 8600
(priv dirty): 432 104 1304 1840
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 4 Proxy Binders: 6
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 421 [com.dolphin.browser.cn] **
native dalvik other total
size: 3860 6535 N/A 10395
allocated: 3457 3487 N/A 6944
free: 6 3048 N/A 3054
(Pss): 873 739 5472 7084
(shared dirty): 696 1720 5744 8160
(priv dirty): 840 656 2952 4448
Objects
Views: 0 ViewRoots: 0
AppContexts: 1 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 7 Proxy Binders: 9
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 114 MEMORY_USED: 114
PAGECACHE_OVERFLOW: 56 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 64 17 emotion.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/DolphinBrowser_CN_gaoy04_signed.apk:/resources.arsc: 387K
** MEMINFO in pid 328 [com.android.providers.calendar] **
native dalvik other total
size: 3244 5575 N/A 8819
allocated: 2992 2881 N/A 5873
free: 11 2694 N/A 2705
(Pss): 736 224 2430 3390
(shared dirty): 844 1816 5892 8552
(priv dirty): 692 136 1544 2372
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 4 Proxy Binders: 8
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 151 MEMORY_USED: 151
PAGECACHE_OVERFLOW: 23 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 33 337 calendar.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/CalendarProvider.apk:/resources.arsc: 29K
** MEMINFO in pid 434 [com.cooliris.media] **
native dalvik other total
size: 3156 5767 N/A 8923
allocated: 2883 2882 N/A 5765
free: 8 2885 N/A 2893
(Pss): 691 259 2679 3629
(shared dirty): 776 1800 5816 8392
(priv dirty): 652 172 1700 2524
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 2 Proxy Binders: 7
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 64 MEMORY_USED: 64
PAGECACHE_OVERFLOW: 5 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 10 10 picasa.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/Gallery3D.apk:/resources.arsc: 20K
** MEMINFO in pid 357 [com.android.deskclock] **
native dalvik other total
size: 3352 5639 N/A 8991
allocated: 3256 2892 N/A 6148
free: 47 2747 N/A 2794
(Pss): 941 296 3022 4259
(shared dirty): 780 1756 5616 8152
(priv dirty): 904 212 2104 3220
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 3 AssetManagers: 3
Local Binders: 6 Proxy Binders: 18
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 66 MEMORY_USED: 66
PAGECACHE_OVERFLOW: 4 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 4 54 alarms.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/DeskClock.apk:/resources.arsc: 28K
zip:/system/app/DeskClock.apk:/assets/fonts/Clockopia.ttf: 7K
** MEMINFO in pid 669 [com.android.browser] **
native dalvik other total
size: 4048 5703 N/A 9751
allocated: 3888 3019 N/A 6907
free: 155 2684 N/A 2839
(Pss): 1589 395 5347 7331
(shared dirty): 724 1732 5536 7992
(priv dirty): 1556 312 2484 4352
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 6 Proxy Binders: 14
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 342 MEMORY_USED: 342
PAGECACHE_OVERFLOW: 33 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 14 32 webview.db
1 6 46 webviewCache.db
1 5 41 browser.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/Browser.apk:/resources.arsc: 91K
** MEMINFO in pid 645 [com.google.android.googlequicksearchbox] **
native dalvik other total
size: 4608 6087 N/A 10695
allocated: 3718 3141 N/A 6859
free: 97 2946 N/A 3043
(Pss): 1530 657 4326 6513
(shared dirty): 668 1568 5480 7716
(priv dirty): 1500 584 2796 4880
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 9 Proxy Binders: 18
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 112 MEMORY_USED: 112
PAGECACHE_OVERFLOW: 18 MALLOC_SIZE: 50
DATABASES
pgsz dbsz Lookaside(b) Dbname
1 15 151 qsb-log.db
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 369 [com.cyanogenmod.android.fotakill] **
native dalvik other total
size: 2820 5511 N/A 8331
allocated: 2661 2756 N/A 5417
free: 2 2755 N/A 2757
(Pss): 344 146 1526 2016
(shared dirty): 916 1880 6024 8820
(priv dirty): 284 48 1036 1368
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 1 Proxy Binders: 6
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 412 [com.noshufou.android.su] **
native dalvik other total
size: 3280 5639 N/A 8919
allocated: 3265 2998 N/A 6263
free: 6 2641 N/A 2647
(Pss): 908 198 2856 3962
(shared dirty): 804 1832 5792 8428
(priv dirty): 868 104 1828 2800
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 3 AssetManagers: 3
Local Binders: 5 Proxy Binders: 9
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 314 [zhangjia1936.autoswapon] **
native dalvik other total
size: 2820 5575 N/A 8395
allocated: 2674 2701 N/A 5375
free: 5 2874 N/A 2879
(Pss): 363 179 1704 2246
(shared dirty): 912 1848 5996 8756
(priv dirty): 304 84 1232 1620
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 1 Proxy Binders: 5
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
** MEMINFO in pid 219 [com.android.systemui] **
native dalvik other total
size: 5128 6855 N/A 11983
allocated: 4400 3851 N/A 8251
free: 199 3004 N/A 3203
(Pss): 1757 610 4767 7134
(shared dirty): 764 1584 5584 7932
(priv dirty): 1720 536 3684 5940
Objects
Views: 0 ViewRoots: 0
AppContexts: 4 Activities: 0
Assets: 2 AssetManagers: 2
Local Binders: 34 Proxy Binders: 27
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
Asset Allocations
zip:/system/framework/framework-res.apk:/resources.arsc: 404K
zip:/system/app/SystemUI.apk:/resources.arsc: 28K