标签：android class blog code java http
如果你想查看所有进程的内存使用情况，可以使用命令procrank、dumpsys meminfo查看，当然也只可以过滤出某个进程如：dumpsys meminfo | grep -i phone
先来看下procrank
sh-4.2# procrank
PID Vss Rss Pss Uss cmdline
1078 59840K 59708K 42125K 39344K com.csr.BTApp
2683 59124K 59040K 37960K 33032K com.android.launcher
1042 51572K 51488K 35686K 33604K android.process.acore
782 32808K 32748K 16775K 14716K system_server
667 20560K 17560K 12739K 8940K /system/bin/surfaceflinger
851 30124K 30036K 12085K 7996K com.android.systemui
2999 27680K 27596K 9929K 7040K com.baidu.input
959 20764K 20676K 5522K 3788K com.android.phone
3468 21892K 21800K 4591K 1920K com.apical.dreamthemetime
982 19880K 19792K 4438K 2644K com.csr.csrservices
668 19592K 19480K 3525K 1360K zygote
670 2960K 2960K 2407K 2356K /system/bin/mediaserver
663 1784K 1784K 1209K 1116K /system/bin/synergy_service
756 3404K 1348K 1133K 1124K /usr/bin/gpsexe
669 1468K 1468K 959K 928K /system/bin/drmserver
675 692K 692K 692K 692K /bin/sh
758 1060K 1060K 630K 604K /system/bin/audiotransfer
3482 656K 652K 456K 444K procrank
664 664K 664K 403K 392K /system/bin/netd
658 584K 584K 331K 320K /system/bin/vold
666 548K 548K 270K 256K /system/bin/rild
671 416K 412K 212K 204K /system/bin/dbus-daemon
673 336K 332K 170K 164K /system/bin/keystore
1 164K 164K 144K 144K /init
674 152K 152K 136K 136K /sbin/adbd
662 312K 312K 112K 104K /system/bin/dvdd
672 328K 324K 109K 100K /system/bin/installd
657 268K 264K 102K 96K /system/bin/servicemanager
649 84K 84K 84K 84K /sbin/ueventd
665 260K 256K 83K 76K /system/bin/debuggerd
------ ------ ------
195031K 163724K TOTAL
RAM: 480380K total, 3624K free, 732K buffers, 299788K cached, 264844K shmem, 7632K slab从以上打印可以看出，一般来说内存占用大小有如下规律：VSS >= RSS >= PSS >= USS使用dumpsys meminfo查看内存信息
sh-4.2# dumpsys meminfo
Applications Memory Usage (kB):
Uptime: 3353863 Realtime: 3353850
Total PSS by process:
41743 kB: com.csr.BTApp (pid 1078)
36924 kB: com.android.launcher (pid 2683)
35452 kB: android.process.acore (pid 1042)
16094 kB: system (pid 782)
11609 kB: com.android.systemui (pid 851)
8564 kB: com.baidu.input (pid 2999)
5298 kB: com.android.phone (pid 959)
4443 kB: com.apical.dreamthemetime (pid 4448)
4203 kB: com.csr.csrservices (pid 982)
4130 kB: com.apical.apicalradio (pid 4518)
Total PSS by OOM adjustment:
16094 kB: System
16094 kB: system (pid 782)
21110 kB: Persistent
11609 kB: com.android.systemui (pid 851)
5298 kB: com.android.phone (pid 959)
4203 kB: com.csr.csrservices (pid 982)
36924 kB: Foreground
36924 kB: com.android.launcher (pid 2683)
85759 kB: Perceptible
41743 kB: com.csr.BTApp (pid 1078)
35452 kB: android.process.acore (pid 1042)
8564 kB: com.baidu.input (pid 2999)
4443 kB: A Services
4443 kB: com.apical.dreamthemetime (pid 4448)
4130 kB: Background
4130 kB: com.apical.apicalradio (pid 4518)
Total PSS by category:
56020 kB: Dalvik
30214 kB: Other dev
27716 kB: Native
24504 kB: Cursor
13198 kB: Unknown
7723 kB: Other mmap
6895 kB: .so mmap
1232 kB: .apk mmap
888 kB: .dex mmap
36 kB: .ttf mmap
34 kB: Ashmem
0 kB: .jar mmap
Total PSS: 168460 kB打印某个程序内存信息，把包名写上，如：com.android.launcher
sh-4.2# dumpsys meminfo com.android.launcher
Applications Memory Usage (kB):
Uptime: 4497753 Realtime: 4497741
** MEMINFO in pid 2683 [com.android.launcher] **
Shared Private Heap Heap Heap
Pss Dirty Dirty Size Alloc Free
------ ------ ------ ------ ------ ------
Native 2144 988 2040 8636 5124 1699
Dalvik 9481 8292 8644 13639 13335 304
Cursor 0 0 0
Ashmem 2 4 0
Other dev 4 20 0
.so mmap 922 1892 292
.jar mmap 0 0 0
.apk mmap 90 0 0
.ttf mmap 0 0 0
.dex mmap 300 0 0
Other mmap 1634 16 112
Unknown 1830 580 1772
TOTAL 16407 11792 12860 22275 18459 2003
Objects
Views: 146 ViewRootImpl: 1
AppContexts: 374 Activities: 1
Assets: 4 AssetManagers: 4
Local Binders: 13 Proxy Binders: 23
Death Recipients: 1
OpenSSL Sockets: 0
SQL
heap: 59 MEMORY_USED: 59
PAGECACHE_OVERFLOW: 1 MALLOC_SIZE: 46
DATABASES
pgsz dbsz Lookaside(b) cache Dbname
1 179 55 2/11/2 launcher.db
Asset Allocations
zip:/system/app/Launcher2.apk:/resources.arsc: 340K
zip:/system/app/MediaCenter.apk:/resources.arsc: 604KAndroid程序内存被分为2部分：native和dalvik，dalvik就是我们平常说的java堆，我们创建的对象是在这里面分配的，而bitmap是直接在native上分配的，对于内存的限制是 native+dalvik 不能超过最大限制。Android程序内存一般限制在16M，当然也有24M的。dumpsys [options]
meminfo 显示内存信息
cpuinfo 显示CPU信息
account 显示accounts信息
activity 显示所有的activities的信息
window 显示键盘，窗口和它们的关系
wifi 显示wifi信息参考文档：http://www.cnblogs.com/qianxudetianxia/archive/2012/05/14/2497073.htmlAndroid使用procrank和dumpsys meminfo分析内存占用情况,布布扣,bubuko.com
Android使用procrank和dumpsys meminfo分析内存占用情况
标签：android class blog code java http
原文地址：http://blog.csdn.net/deng0zhaotai/article/details/34848929
