[android-developers] Re: cpu usage information
Thank you. have you an example code? I am new to android programation On Mar 13, 11:57 am, Marcin Orlowski webnet.andr...@gmail.com wrote: On 12 March 2012 18:11, oneking onekingg...@gmail.com wrote: How to make a pie chart that tells me cpu usage or memory ram? This is a example: http://gadgetsdna.com/wp-content/uploads/2010/03/SystemPanel-fo-Andro... The same way as you would make pie chart of any other data. you need: a) data to visualise (be it cpu usage or anything else) b) pie chart drawing routine (your own or 3rd party). Once you got that, combine them together and voila. You got what you needed. Regards, Marcin Orlowski *Tray Agenda http://bit.ly/trayagenda* - keep you daily schedule handy... *Date In Tray* http://bit.ly/dateintraypro - current date at glance... WebnetMobile on *Facebook http://webnetmobile.com/fb/*, *Google+*http://bit.ly/webnetmobile-gpand *Twitter http://webnetmobile.com/twitter/* -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
As a developer I would say it is VERY important to measure how efficient your implementation (code) is. CPU usage (which can sucks the battery) and memory usage etc are very important issues specially for developers. On Sep 8, 8:18 pm, Frank Weiss fewe...@gmail.com wrote: On Wed, Sep 8, 2010 at 3:01 AM, Andy a...@fendley.com wrote: Hi all, Thanks for the input and I think these comments answer my question. Maybe it would be an idea to allow an SDK api to access these stats as they, in my view for applications, can be very useful due to the heavy multitasking nature of android? I suppose the question is for whom would this be useful? How many developers are going to need to do this with the SDK? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
I know it's not the same using an actual phone than an emulator, but on the emulator there is an option I believe that shows CPU status... -Moto On Oct 6, 9:58 am, askPrins askpr...@gmail.com wrote: As a developer I would say it is VERY important to measure how efficient your implementation (code) is. CPU usage (which can sucks the battery) and memory usage etc are very important issues specially for developers. On Sep 8, 8:18 pm, Frank Weiss fewe...@gmail.com wrote: On Wed, Sep 8, 2010 at 3:01 AM, Andy a...@fendley.com wrote: Hi all, Thanks for the input and I think these comments answer my question. Maybe it would be an idea to allow an SDK api to access these stats as they, in my view for applications, can be very useful due to the heavy multitasking nature of android? I suppose the question is for whom would this be useful? How many developers are going to need to do this with the SDK? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: CPU usage stats
On Wed, Oct 6, 2010 at 6:58 AM, askPrins askpr...@gmail.com wrote: As a developer I would say it is VERY important to measure how efficient your implementation (code) is. CPU usage (which can sucks the battery) and memory usage etc are very important issues specially for developers. For profiling your app, use this: http://developer.android.com/reference/android/os/Debug.html#threadCpuTimeNanos() Or better yet, run the profiler on your code. -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
Hi all, Thanks for the input and I think these comments answer my question. Maybe it would be an idea to allow an SDK api to access these stats as they, in my view for applications, can be very useful due to the heavy multitasking nature of android? Regards, Andy On Sep 7, 12:30 pm, Mark Murphy mmur...@commonsware.com wrote: On Tue, Sep 7, 2010 at 4:25 AM, CHENG LUO stand...@gmail.com wrote: Maybe you could have a look at com.android.server.ProcessStats :) That is not part of the Android SDK. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy Android Training in London:http://skillsmatter.com/go/os-mobile-server -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: CPU usage stats
On Wed, Sep 8, 2010 at 3:01 AM, Andy a...@fendley.com wrote: Hi all, Thanks for the input and I think these comments answer my question. Maybe it would be an idea to allow an SDK api to access these stats as they, in my view for applications, can be very useful due to the heavy multitasking nature of android? I suppose the question is for whom would this be useful? How many developers are going to need to do this with the SDK? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
Hi, Maybe you could have a look at com.android.server.ProcessStats :) Cheng On 6 sep, 17:33, Andy a...@fendley.com wrote: Hi everyone, Does anyone know of a direct api that allows access to CPU usage statistics for different applications/tasks running inside android? All I can find is data available by accessing a file /proc/stat but this seems a little cumbersome. ActivityManager holds data about processes/tasks etc but no CPU usage stats. Many thanks for any help. Andy -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: CPU usage stats
On Tue, Sep 7, 2010 at 4:25 AM, CHENG LUO stand...@gmail.com wrote: Maybe you could have a look at com.android.server.ProcessStats :) That is not part of the Android SDK. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Android Training in London: http://skillsmatter.com/go/os-mobile-server -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
If you want to do it from the shell, just use top. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage stats
Thats great thanks but I want to access these stats from inside a running Activity...just wondered if there was a direct api to use. Regards, Andy On Sep 6, 5:02 pm, Maps.Huge.Info (Maps API Guru) cor...@gmail.com wrote: If you want to do it from the shell, just use top. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: CPU usage stats
Not in the SDK. I suppose because most uses of this is by developers who can simply use adb or ddms. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: CPU usage stats
There isn't an SDK API for this. Also note that /proc is not part of the SDK -- you can't count on the contents of /proc remaining compatible in future versions. On Mon, Sep 6, 2010 at 9:45 AM, Andy a...@fendley.com wrote: Thats great thanks but I want to access these stats from inside a running Activity...just wondered if there was a direct api to use. Regards, Andy On Sep 6, 5:02 pm, Maps.Huge.Info (Maps API Guru) cor...@gmail.com wrote: If you want to do it from the shell, just use top. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.comandroid-developers%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: CPU usage power management question
investigated this myself littlebit: Indeed the top only knows about currently configured cpu frequency so if power management has set it to 245Mhz on nexusone then com.android.wallpaper app can easily show 20..30% cpu usage but at 499mhz the cpu usage is ~12%... Found a nice solution to this: to get cpu usage % that is not affected by power management decisions one can install setCPU app (http://forum.xda-developers.com/showthread.php?t=505419) This allows you to modify min max possible cpu frequency. When setting min freq == max freq I can compare cpu usage % between different experiments without having to worry about what frequency power management decides to use during experiment. Br, Lauri On Apr 1, 4:54 pm, Lauri Ehrenpreis lauri...@gmail.com wrote: Hi! The easiest way to get some idea about cpu usage on android seems to be the top utility (adb shell top) However it seems to me that due to power management the cpu frequency is changing all the time (i can see this when doing cat /proc/cpuinfo - the BogoMIPS value is changing drastically). So the question is that how does top calculate the cpu usage percent? Is it aware of max possible cpu frequency and calculates based on that or it calculates based on current cpu frequency? Consider these 2 cases: 1) BogoMIPS shows 100 while top says my process takes 50% of the cpu 2) BocoMIPS shows 600 while top says my process takes 50% of the cpu Does this mean that in first case my process was eating 50 BogoMIPS and in second case 300 (top is not aware of max possible cpu freq)? or in both cases my process took same amount of cpu (top is aware of max freq)? Br, Lauri -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe, reply using remove me as the subject.
[android-developers] Re: CPU usage detect
open a terminal on the device with 'adb shell', and then use the standart linux 'top' command. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: CPU usage api's query
There is no such concept as a high priority application running which might need the entire CPU, sorry. On Wed, Jul 15, 2009 at 6:06 AM, sukumar bhashyam bhashyam.suku...@gmail.com wrote: Hello, I'm trying to develop a service, which needs to be run in background as a low priority task and does some complex processing . I need to gracefully quit my service when their is a resource shortage( like CPU running low on memory). Was there any APIs available to know the CPU resource usage ?. Objectives of my service is to - 1. Exit service when a high priority application(s) is running and which might need entire CPU resources. 2. Should store my states before onDestroy() of my service is called. I'm planning to use CPU resource usage api's in service to check periodically the CPU load and quit the service if CPU load exceed a threshold(80 %) after storing states. Please let me know of any better way of handling the objectives of my service stated above. Thanks. Regards, Sukumar. -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: CPU usage api's query
Is there any way to monitor CPU usage of a java thread from android? It doesn't seem that android supports the ThreadMXBean or the ManagementFactory. What is available? I noticed that Process offers some very limited information, but I don't think that I can narrow that down to actual thread usage -- it's just reporting process-level information. On Jul 15, 1:10 pm, Dianne Hackborn hack...@android.com wrote: There is no such concept as a high priority application running which might need the entire CPU, sorry. On Wed, Jul 15, 2009 at 6:06 AM, sukumar bhashyam bhashyam.suku...@gmail.com wrote: Hello, I'm trying to develop a service, which needs to be run in background as a low priority task and does some complex processing . I need to gracefully quit my service when their is a resource shortage( like CPU running low on memory). Was there any APIs available to know the CPU resource usage ?. Objectives of my service is to - 1. Exit service when a high priority application(s) is running and which might need entire CPU resources. 2. Should store my states before onDestroy() of my service is called. I'm planning to use CPU resource usage api's in service to check periodically the CPU load and quit the service if CPU load exceed a threshold(80 %) after storing states. Please let me know of any better way of handling the objectives of my service stated above. Thanks. Regards, Sukumar. -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them.- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: ::CPU usage
Hi, Do you have any real benchmark to provide (based on real phone) ? Like it is done on the jbenchmark site? (Although it's only for java code) On Dec 7, 3:06 am, Dianne Hackborn [EMAIL PROTECTED] wrote: You really can't judge performance based on the emulator. Ignoring the CPU emulation, there is no emulation of the memory bus, it doesn't do any graphics hardware acceleration, etc. Ultimately you need to do development on a real device, that is the only way to know how your application is actually going to behave. On Sat, Dec 6, 2008 at 6:12 AM, Xavier Mathews [EMAIL PROTECTED]wrote: Yes it will depending on the processor speed of the device. 50% Is Alot. On 12/06/2008, Mark Murphy [EMAIL PROTECTED] wrote: Imran wrote: Hi All...!!! i have developed a small game application... i have a problem... when i run the application it is using 50% of CPU (mine is 2Ghz processor )... will this create a problem in actual device.. Possibly. The emulator is inefficient, in that it has to convert ARM instructions into x86 instructions for execution on your development PC. This adds a fair bit of overhead, which results in a higher-than-expected CPU utilization. However, it is very difficult to project how a certain CPU utilization on the development PC will translate into CPU utilization on a device. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 1.9 Available! -- Xavier A. Mathews Student/Browser Specialist/Developer/Web-Master Google Group Client Based Tech Support Specialist Hazel Crest Illinois [EMAIL PROTECTED]@[EMAIL PROTECTED] Fear of a name, only increases fear of the thing itself. -- Dianne Hackborn Android framework engineer [EMAIL PROTECTED] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: ::CPU usage
Imran wrote: Hi All...!!! i have developed a small game application... i have a problem... when i run the application it is using 50% of CPU (mine is 2Ghz processor )... will this create a problem in actual device.. Possibly. The emulator is inefficient, in that it has to convert ARM instructions into x86 instructions for execution on your development PC. This adds a fair bit of overhead, which results in a higher-than-expected CPU utilization. However, it is very difficult to project how a certain CPU utilization on the development PC will translate into CPU utilization on a device. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 1.9 Available! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: ::CPU usage
Yes it will depending on the processor speed of the device. 50% Is Alot. On 12/06/2008, Mark Murphy [EMAIL PROTECTED] wrote: Imran wrote: Hi All...!!! i have developed a small game application... i have a problem... when i run the application it is using 50% of CPU (mine is 2Ghz processor )... will this create a problem in actual device.. Possibly. The emulator is inefficient, in that it has to convert ARM instructions into x86 instructions for execution on your development PC. This adds a fair bit of overhead, which results in a higher-than-expected CPU utilization. However, it is very difficult to project how a certain CPU utilization on the development PC will translate into CPU utilization on a device. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 1.9 Available! -- Xavier A. Mathews Student/Browser Specialist/Developer/Web-Master Google Group Client Based Tech Support Specialist Hazel Crest Illinois [EMAIL PROTECTED]@[EMAIL PROTECTED] Fear of a name, only increases fear of the thing itself. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: ::CPU usage
You really can't judge performance based on the emulator. Ignoring the CPU emulation, there is no emulation of the memory bus, it doesn't do any graphics hardware acceleration, etc. Ultimately you need to do development on a real device, that is the only way to know how your application is actually going to behave. On Sat, Dec 6, 2008 at 6:12 AM, Xavier Mathews [EMAIL PROTECTED]wrote: Yes it will depending on the processor speed of the device. 50% Is Alot. On 12/06/2008, Mark Murphy [EMAIL PROTECTED] wrote: Imran wrote: Hi All...!!! i have developed a small game application... i have a problem... when i run the application it is using 50% of CPU (mine is 2Ghz processor )... will this create a problem in actual device.. Possibly. The emulator is inefficient, in that it has to convert ARM instructions into x86 instructions for execution on your development PC. This adds a fair bit of overhead, which results in a higher-than-expected CPU utilization. However, it is very difficult to project how a certain CPU utilization on the development PC will translate into CPU utilization on a device. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 1.9 Available! -- Xavier A. Mathews Student/Browser Specialist/Developer/Web-Master Google Group Client Based Tech Support Specialist Hazel Crest Illinois [EMAIL PROTECTED]@[EMAIL PROTECTED] Fear of a name, only increases fear of the thing itself. -- Dianne Hackborn Android framework engineer [EMAIL PROTECTED] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
