cpu-usage

HTML5 Canvas animation uses 88-98% of CPU

由 别来无恙 提交于 2019-12-23 10:06:09
问题 i'm trying to animate a faux pixelated map of the world so that it transitions between different colors smoothly. i originially did this with jquery and tables but the cpu usage was very high so i thought i'd try html5 canvas instead. However, i still get very high cpu usage for this. i'm wondering if its the large array in the code (which i use to indicate where a square should be filled). any help would be deeply appreciated. <!DOCTYPE html> <html> <head> <title>canvas version</title>

Troubleshooting JVM CPU spikes

由 こ雲淡風輕ζ 提交于 2019-12-23 09:56:13
问题 We're seeing an interesting (though quite severe) issue with one of our application servers: at a certain point in time, the CPU usage of the JVM running our web applications starts rising and keeps on rising until the applications eventually slow down to a crawl. The only way to fix it is to restart the Application server software. Application server: Spring tc Server (as the servers are hosted elsewhere, I currently do not know the exact version) Applications: relatively standard Spring 3

How to detect a process cpu/memory usage and kill it when it exceeds a certain value? [closed]

由 旧巷老猫 提交于 2019-12-23 03:35:14
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 6 years ago . i'm learning c/c++ and i'm wondering if it is possible to detect a process by it's name and kill it when it's cpu/memory usage exceed a certain value. I would apreciate any help with the actual code or just pointing me in the right direction. 回答1: For Windows and c++: Memory Usage

How to get CPU usage percent in C++ using the Sigar libraries

由 ▼魔方 西西 提交于 2019-12-23 03:13:35
问题 I'm trying to get the CPU usage percent in c++ using the SIGAR libraries, i wrote the code below to try to get this information, but something is wrong, i always got a value 0.3... instead of a value between 0% to 100 %. How to get the CPU usage percent with the SIGAR libraries? #include <QDebug> #include <sigar.h> extern "C" { #include <sigar_format.h> } int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); sigar_cpu_t cpu1; sigar_cpu_t cpu2; sigar_cpu_perc_t perc; sigar_cpu

How to avoid full CPU utilisation, or terminate, while InternetOpenURL is trying (and failing) to connect?

由 匆匆过客 提交于 2019-12-23 02:48:05
问题 I have a fairly simple application which downloads files in a thread. This thread uses the WinINet APIs, and begins like so: HINTERNET hInternet = InternetOpen(strUserAgent.c_str(), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0); DWORD dwFlags = INTERNET_FLAG_NO_UI | INTERNET_FLAG_HYPERLINK | INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_RELOAD; HINTERNET hUrl = InternetOpenUrl(hInternet, m_strURL.c_str(), L"", 0, dwFlags, NULL); However, if there is no internet connection, or the remote host is

Relatively simple Python script using 100% cpu

由 旧城冷巷雨未停 提交于 2019-12-22 18:46:39
问题 I'm not going to provide the code because it's too long. The python script involves executing a lengthy number of commands run in a while loop. Basic structure while True: The meat goes here with the odd if: and stuff Now that I'm finished it, I'm noticing that upon running it, it uses 100% CPU, no exceptions. I'm a beginner and don't really know what to attribute this issue to. I thought that maybe because the script runs indefinitely (until I exit it manually) it might just be taxing on the

Descrip “top” command in Android

由 我是研究僧i 提交于 2019-12-22 04:28:11
问题 I'm making a small Android application to show current total CPU usage like tab Performance in Windows Task Manager. I use "top -m 1 -n 1 -d 1" to get CPU usage, but i do not really understand the result of "top". The result like: User 5%, system 15%, IOW 0%, IRQ 0% User 5 + Nice 0 + Sys 14 + Idle 73 + IOW 0 + IRQ 0 + SIRQ 0 = 92 PID CPU% S #THR VSS RSS UID Name 213 11% R 1 900K 340K app_16 top CPU usage = ??? How can i calculated total CPU usage? 回答1: The accepted answer for this question is

Firefox plugin CPU usage

由 一个人想着一个人 提交于 2019-12-22 03:31:14
问题 I need to collect data on firefox CPU usage during web-development coding session and I'm wondering if it is possible to monitor CPU usage of particular firefox plugin. Right now i'm using windows' perfmon.msc, but it will only allow me to monitor firefox process as a whole. Do you know any tools that would allow me to get CPU data from a plugin? Is it possible at all ? 回答1: You could analyze the CPU usage using Process Explorer. Right-click on the Firefox process and select properties. On

Firefox plugin CPU usage

由 梦想与她 提交于 2019-12-22 03:31:10
问题 I need to collect data on firefox CPU usage during web-development coding session and I'm wondering if it is possible to monitor CPU usage of particular firefox plugin. Right now i'm using windows' perfmon.msc, but it will only allow me to monitor firefox process as a whole. Do you know any tools that would allow me to get CPU data from a plugin? Is it possible at all ? 回答1: You could analyze the CPU usage using Process Explorer. Right-click on the Firefox process and select properties. On

How can I get performance counter to work without getting the user to rebuild with lodctr in a command prompt?

由 ∥☆過路亽．° 提交于 2019-12-21 12:07:53
问题 I have been trying to get the total CPU usage of windows PC (Windows 7 running .Net 4.5) in C#. It looks like using PerformanceCounter should be able to meet my needs. I wrote some trial code based off the three links below (and checking the msdn pages), this was the most basic version: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Diagnostics; namespace EntropyProject { class Program { static void Main(string[
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