cpu-usage

问题 Hi am developing a load balancing algorithm in java. In my system there will be one mater node and list of slave nodes, Where the master node will distribute the incoming request to one of its slave node. I want to find the C.P.U load (percentage of C.P.U utilized) in each of the slave nodes. So that the master node can effectively distribute the request to one of its least loaded slave node. Can any one please suggest me how can we find it. The getSystemLoadAverage() method in JMX can be

问题 I'm currently trying to get information about the CPU load and RAM usage out of an PowerPC with QNX running on it. The idea is to write that information in a text file with a time stamp over a certain amount of time, but this ain't my problem here once I have the information as a "standard value". My programm will be in C++ and I already did this kind of program for Windows (via PDH API). Maybe you have page like this but for QNX? Probably I'm looking for the wrong keywords. Can you help me

问题 I developed an auto-call application. The app reads a text file that includes a phone number list and calls for a few second, ends the call and then repeats. My problem is that the app does not send calls after 10~16 hours. I don't know the reason exactly, but I guess that the problem is the CPU usage. My app's CPU usage is almost 50%! How do I reduce CPU usage? Here is part of source code: if(r_count.compareTo("0")!=0) { while(index < repeat_count) { count = 1; time_count = 2; while(count <

问题 I developed an auto-call application. The app reads a text file that includes a phone number list and calls for a few second, ends the call and then repeats. My problem is that the app does not send calls after 10~16 hours. I don't know the reason exactly, but I guess that the problem is the CPU usage. My app's CPU usage is almost 50%! How do I reduce CPU usage? Here is part of source code: if(r_count.compareTo("0")!=0) { while(index < repeat_count) { count = 1; time_count = 2; while(count <

问题 How can I analyze the CPU time consumed by my Innodb queries? I have innotop, but I cant seems to find where it is. Thanks. 回答1: You may analyze CPU usage by individual queries with SHOW PROFILE CPU command AFAIK there is no way to check how much CPU "all innodb queries used". 来源： https://stackoverflow.com/questions/2280984/how-to-analyze-query-cpu-time

问题 I am using a FastLineChart in C# to display a signal from an external device in real time. The sample rate is about 700Hz. In my program I down-sample to about 100Hz to minimize unnecessary resolution for the display, but still use way too much CPU doing this. I think the problem is that I am scrolling the data across the chart (like the CPU graph does in windows) and this is eating up resources. I do this by removing the oldest element and then adding a new one to the specific series (as

问题 This question already has answers here : Get OS-level system information (15 answers) Closed 5 years ago . I would like using Java to get data from Windows about CPU, RAM, HDD, Network and list of processes(services). How I can get these system values values without using third-party libraries or JNI? Is there something similar to /proc in Windows where I can get all necessary values and use them? 回答1: You can use native API's using JNI . You can also use SIGAR which is Apache licensed

问题 This question already has answers here : How to get CPU usage and RAM usage without exec? (4 answers) Closed 5 years ago . I want to get server CPU and RAM usage using php. The script should work on windows and linux. How would I do that? 回答1: The first function will return the Server Memory Usage: function get_server_memory_usage(){ $free = shell_exec('free'); $free = (string)trim($free); $free_arr = explode("\n", $free); $mem = explode(" ", $free_arr[1]); $mem = array_filter($mem); $mem =

问题 Say, "run myApp.jar with cpu=800 and memory=1024" Ive been doing java programming for many years and it is an embarrasment to ask this question. I don't even know whether this is possible or not. And if so, how? What I just want know is if it is possible to set a java program's maximum memory and cpu usage. I suddenly thought of this because of I recently started developing mobile apps. I want to know how the app will behave on the device which has very limited memory and processor. I saw

问题 Say, "run myApp.jar with cpu=800 and memory=1024" Ive been doing java programming for many years and it is an embarrasment to ask this question. I don't even know whether this is possible or not. And if so, how? What I just want know is if it is possible to set a java program's maximum memory and cpu usage. I suddenly thought of this because of I recently started developing mobile apps. I want to know how the app will behave on the device which has very limited memory and processor. I saw