问题描述
由于已经详细说明许多有益的网站，人们分析的Android应用程序的内存使用的方法是执行杀人-10 [PID]触发HPROF转储。这似乎工作在某些设备上，以及logcat中通常包含这样的：
As has been detailed by many helpful sites, one way to analyze memory usage of Android apps is to execute a "kill -10 [PID]" to trigger an HPROF dump. This seems to work on some devices, and the logcat normally contains something like this:
I/dalvikvm(32170): threadid=3: reacting to signal 10
I/dalvikvm(32170): SIGUSR1 forcing GC and HPROF dump
I/dalvikvm(32170): hprof: dumping VM heap to "/data/misc/heap-dump-tm1302633572-pid32170.hprof-hptemp".
I/dalvikvm(32170): hprof: dumping heap strings to "/data/misc/heap-dump-tm1302633572- pid32170.hprof".
I/dalvikvm(32170): hprof: heap dump completed, temp file removed
然而，在其他设备上，执行杀-10的结果是：
However, on other devices, executing the "kill -10" results in this:
I/dalvikvm( 5687): threadid=4: reacting to signal 10
I/dalvikvm( 5687): SIGUSR1 forcing GC (no HPROF)
所有我想这对设备的根和我做了肯定和chmod /数据/杂项777我执行杀人-10后没有得到任何错误消息。
All the devices I'm trying this on are rooted and I've made sure to chmod /data/misc to 777. I don't get any error messages after executing "kill -10".
在情况下，它是有帮助的，这里有在那里我得到一个HPROF转储设备：HTC ACE（Desire HD的），HTC G1，HTC的Nexus One（T-Mobile）的
In case it's helpful, here are the devices where I do get an HPROF dump:HTC ACE (Desire HD), HTC G1, HTC Nexus One (T-Mobile)
和这里的设备，我没有得到一个HPROF转储：歌Nexus S，Droid的，Droid X的，的Nexus One（AT＆amp; T公司）
And here are the devices where I do NOT get an HPROF dump:Nexus S, Droid, Droid X, Nexus One (AT&T)
我为什么不能得到某些设备的HPROF转储和有什么我可以做的，让我拿到垃圾场？
Why can't I get an HPROF dump from certain devices and is there anything I can do to allow me to get the dumps?
推荐答案
使用DDMS。点击HPROF转储文件工具栏图标 - 它看起来像一个半完全可以用一个向下的箭头。工作就像一个魅力时，我试了一下刚才一台Nexus S上。
Use DDMS. Click on the "Dump HPROF File" toolbar icon -- it looks like a half-full can with a downward-pointing arrow. Worked like a charm when I tried it just now on a Nexus S.
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