cpu-usage

问题 So I'm trying to write a Java function that gathers CPU time for processes, and compares them to prior readings to determine the CPU time a process has demanded since the last sample was taken. I found out how to get the CPU time of processes from this site http://codeseekah.com/2012/10/21/android-shell-tricks-ps/ Basically, you can execute "ps -x" and add the values you see at the end; they look like this (u:15, s:854). The problem is that I seem to be getting higher values than expected.

问题 How i get the cpu of one process (by its id or som thing like that...) using c++ lang. 回答1: One of ways: Monitoring CPU and disk utilization of a single program 来源： https://stackoverflow.com/questions/3014377/getting-cpu-usage-of-one-process-using-c-win32

问题 I am making an application in blackberry, Here i want to know the current cpu usage and memory usage. How to find that? 回答1: Refer this link Memory Memory.getRAMStats().getFree(); Memory.getRAMStats().getAllocated()); 来源： https://stackoverflow.com/questions/10226263/how-to-get-current-cpu-usage-and-memory-usage-in-blackberry

问题 I need to get info for memory and CPU usage of some process running on the machine (not the Java process). How can I do that? 回答1: It's platform dependent, but essentially use Runtime.getRuntime() to execute the appropriate command, capture its output and parse it for the data you need. 回答2: If I'm not mistaken Runtime.getRuntime is for the virtual machine and not the physical. What you are about asking is getting the physical machine information (meaning the CPU). 来源： https://stackoverflow

问题 I've been doing a lot of research on this issue but unfortunately I wasn't able to find a solution. My problem is that I am experiencing a quite high CPU load even on powerful machines when using WCF (NetTcpBinding, Streamed) - to be more specific, my i5 860 has a load of 20-40 percent when handling 20 client threads. When it comes to deploying a real service (and not a testing project) and there's around 50 real clients sending small data packages every second (around 20kb per transfer) the

问题 I have a python script (test.py) that need to be restarted every 10 - 15 minutes using below code : import subprocess,time WAIT=700 file_name = ("test.py") while True: process=subprocess.Popen("python "+ file_name) now=time.time() while time.time() - now < WAIT: pass process.kill() But is taking 100% of my CPU . What can be wrong ? if i run test.py only everything is normal . 回答1: You should use the .sleep function, which won't use a cpu intensive while-loop: import subprocess,time WAIT=700

问题 I have this site that streams images from the database (SQL2008), and I think it's the one causing the very high CPU usage on my server. The CPU usage is at least 60-90%. I am using MVC3 and below is the code in my Controller that sends the image to the View: [OutputCache(Duration = 86400, VaryByParam = "GUID")] public FileStreamResult GetFile(string guid) { Guid id = new Guid(guid); Thumbnail thumbnail = thumbService.GetThumbnailByGUID(id); Stream stream = new MemoryStream(thumbnail

问题 I am witing IOS app when interface is presented by many CALayers . Once I noticed that CPU is loaded by other processes (not app actually) during graphics updates. I began to disabled updating of interface parts and went to the moment when only ONE CALayer was updated (at 50-60 Hz ), but all other layers (hundreds) were statically displayed too. So updating of only this ONE layer costs 60-70% of CPU load by other processes. When disable update of this only layer, CPU is not loaded. Can anyone

问题 i've been searching the web for a possibility in java to figure out, how much cpu my application needs but sadly couldn't find a solution. Most of the people referred to "OperatingSystemMXBean" which works on platforms like linux, but not on windows. My application will run on multiple os but mostly on windows. So is there any way to figure out the cpu usage of a java-application in the same runtime which is platform independend or supports multiple platforms including windows, mac and linux?

问题 Does AWK uses a lot of processing power? If so, is there a better scripting language to do it? Or should I do it in C itself (where rest of my code is). 回答1: Depends on what you're telling it to do. Most of the work is passed to the regexp engine, which should be similar, no matter what language you use. Now if you're using an awk script from inside a C program, and you have the resources to just implement the functionality in C too, you're best off doing that. You'll avoid the process