How to get higher precision of "CPU%" than that from TOP command?
You didn't mention it in your post, but in the comment you said that you really need CPU utilization per thread, not per process.
If you can't find a tool that's accurate enough, you can look directly in /proc/[pid]/task/[ThreadName] as described in the man page for /proc. This gives total CPU time consumed in "clock ticks" since execution began. Getting better resolution than this is probably difficult or impossible.
Edit
From the OP's comment, a command that lists the relevant information is:
adb shell cat /proc/${pid}/task/*/stat | awk -F\ '{print $1, $14}' This just cats the correct /proc files to the debugging host, which runs a tiny awk program to print the columns for pid and user time. You could also easily use cut -d " " -f1,14 or something similar in perl to get the columns if awk isn't available.
Try this:
ps -eo pcpu,pid,user,args | sort -r -k1 | less %CPU PID USER COMMAND 9.0 2721 user bash 1.4 956 root ... 0.5 2212 user ...EDIT:
You can use adb shell and busybox (http://www.busybox.net/downloads/BusyBox.html)
adb shell busybox top
c:\ adb push busybox /system/binc:\ adb shell# busybox top CPU: 2.3% usr 3.1% sys 3.9% nic 90.5% idle 0.0% io 0.0% irq 0.0% sirqLoad average: 1.06 1.66 10.63 1/589 8048←[7m PID PPID USER STAT VSZ %MEM CPU %CPU COMMAND←[0m31619 2180 10112 S 217m 67.0 0 3.8 com.mgeek.android.DolphinBrowser.B 2232 2180 1000 S 551m169.6 0 2.6 system_server 8038 8037 0 R 2068 0.6 0 0.8 busybox top 2178 1 0 S 11092 3.3 0 0.6 /system/bin/drexe 6812 2180 10104 S 199m 61.2 0 0.5 android.tether 2291 2180 1001 S 324m 99.8 0 0.3 com.android.phone 2308 2180 10006 S 325m100.0 0 0.1 com.sec.android.app.dialertab 2177 1 1001 S 9624 2.8 0 0.1 /system/bin/rild 5 2 0 SW< 0 0.0 0 0.1 [events/0]30087 2180 10022 S 358m110.4 0 0.0 com.samsung.vvm 2304 2180 10006 S 311m 96.0 0 0.0 com.sec.android.app.twlauncher16110 2180 10006 S 296m 91.3 0 0.0 android.process.acore 2445 2180 10006 S 272m 83.8 0 0.0 com.sec.android.provider.logsprovi 8064 2180 10002 S 238m 73.4 0 0.0 com.google.process.gapps31537 2180 10037 S 227m 69.9 0 0.0 com.google.android.gm 2288 2180 10048 S 221m 68.1 0 0.0 com.swype.android.inputmethod 2285 2180 10013 S 215m 66.3 0 0.0 com.tat.livewallpaper.aurora30664 2180 10011 S 213m 65.8 0 0.0 com.android.email31191 2180 10099 S 209m 64.4 0 0.0 com.sirma.mobile.bible.android 2377 2180 10087 S 207m 63.9 0 0.0 android.tts(Taken from here)
Got this information from another thread:
3) Getting CPU info
~$ adb shell dumpsys cpuinfo
Output:
Load: 0.08 / 0.4 / 0.64CPU usage from 42816ms to 34683ms ago:system_server: 1% = 1% user + 0% kernel / faults: 16 minorkdebuglog.sh: 0% = 0% user + 0% kernel / faults: 160 minortiwlan_wq: 0% = 0% user + 0% kernelusb_mass_storag: 0% = 0% user + 0% kernelpvr_workqueue: 0% = 0% user + 0% kernel+sleep: 0% = 0% user + 0% kernel+sleep: 0% = 0% user + 0% kernelTOTAL: 6% = 1% user + 3% kernel + 0% irq
EDIT:
You can also try this command: echo $(adb shell ps | grep com.android.phone | awk '{ system("adb shell cat /proc/" $2 "/stat");}' | awk '{print $14+$15;}')
Also:
using top : This will show you the cpu statstop -b -n 1 |grep ^Cpu
using ps: This will show you the % cpu usage for each process.ps -eo pcpu,pid,user,args | sort -r -k1 | less
EDIT2:
In realtion to your comments and the bounty description (How can I guess which thread eats the battery?) I found an interesting page:
http://ziyang.eecs.umich.edu/projects/powertutor/
As stated there:
You can use PowerTutor to monitor the power consumption of any application.
Try this for an instance and see if it meets your requirements.
FINAL EDIT:
Check out the Systrace documentation on the developer.android.com site:
http://developer.android.com/tools/debugging/systrace.htmlhttp://developer.android.com/tools/help/systrace.html
I'm sorry if you already tried that, but that's one concrete method to measure the performance.