Questions tagged [cpu-usage]
CPU usage indicate how much of a workload is being handled by the CPU.
cpu-usage
2,913
questions
259
votes
11
answers
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How to get the CPU Usage in C#?
I want to get the overall total CPU usage for an application in C#. I've found many ways to dig into the properties of processes, but I only want the CPU usage of the processes, and the total CPU like ...
Grace
235
votes
22
answers
552k
views
Retrieve CPU usage and memory usage of a single process on Linux?
I want to get the CPU and memory usage of a single process on Linux - I know the PID. Hopefully, I can get it every second and write it to a CSV using the 'watch' command. What command can I use to ...
- 8,248
210
votes
3
answers
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MySQL high CPU usage [closed]
Recently my server CPU has been going very high.
CPU load averages 13.91 (1 min) 11.72 (5 mins) 8.01 (15 mins) and my site has only had a slight increase in traffic.
After running a top command, I ...
- 4,670
161
votes
1
answer
8k
views
Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
I have created a simple program in java:
public static void main(String[] args) throws InterruptedException {
while (true)
;
}
If I run this on a Linux machine, it shows 100% CPU usage, ...
- 1,293
155
votes
24
answers
76k
views
High CPU usage with Android emulator (qemu-system-i386.exe)
The emulator qemu-system-i386.exe cpu usage almost constantly running between 7~9
Android studio 2.1
Android SDK Tools: 25.1.3
Host Operating System: Windows 7 - i7 2630QM - 8GB Ram
Intel x86 Atom ...
- 4,547
117
votes
5
answers
114k
views
How to read the Stock CPU Usage data
On Ice Cream Sandwich, an option in the Developer Options is "Show CPU Usage", which adds an overlay on the screen (see screenshot below).
My question is, how do I read the data ? I guessed that the ...
- 10.2k
103
votes
13
answers
182k
views
How to calculate the CPU usage of a process by PID in Linux from C?
I want to programmatically [in C] calculate CPU usage % for a given process ID in Linux.
How can we get the realtime CPU usage % for a given process?
To make it further clear:
I should be able to ...
- 4,575
101
votes
8
answers
103k
views
How is CPU usage calculated?
On my desktop, I have a little widget that tells me my current CPU usage. It also shows the usage for each of my two cores.
I always wondered, how does the CPU calculate how much of its processing ...
- 29.6k
99
votes
12
answers
65k
views
Android studio using > 100% CPU at all times - no background processes appear to be running
I've noticed Android Studio (when running) uses greater than 100% CPU at all times, even when it appears there are no background processes that the IDE is running (indexing, etc). I might suspect this ...
- 1,559
93
votes
6
answers
27k
views
VS2013 permanent CPU usage even though in idle mode
I've recently updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished ...
- 2,670
83
votes
6
answers
114k
views
Accurate calculation of CPU usage given in percentage in Linux?
It's a question which has been asked many times, however there is no well supported answer I could find.
Many people suggest the use of top command, but if you run top once (because you have a script ...
- 3,179
79
votes
6
answers
192k
views
How do I find out what is hammering my SQL Server?
My SQL Server CPU has been at around 90% for the most part of today.
I am not in a position to be able to restart it due to it being in constant use.
Is it possible to find out what within SQL is ...
- 28.6k
78
votes
5
answers
75k
views
Memory usage of Docker containers
I am using Docker to run some containerized apps. I am interested in measuring how much resources they consume (as far as regarding CPU and Memory usage).
Is there any way to measure the resources ...
- 6,651
77
votes
3
answers
145k
views
What is the correct Performance Counter to get CPU and Memory Usage of a Process?
How can I get the CPU and Memory usage of a particular process using the .NET PerformanceCounter class? And also what is the difference between
Processor\% Processor Time and Process\% Processor ...
- 5,914
69
votes
8
answers
291k
views
How prevent CPU usage 100% because of worker process in iis
My CPU usage is 100% most of the the time in Windows Server 2008-R2 with my own vps, vmware, quad core, and 4GB Ram. When I open windows Task Manager and go to the resource monitor I see that 100% ...
- 20.2k
63
votes
13
answers
57k
views
How can I programmatically limit my program's CPU usage to below 70%?
Of late, I'm becoming more health oriented when constructing my program, I have observed that most of programs take 2 or 3 minutes to execute and when I check on the task scheduler, I see that they ...
- 707
63
votes
4
answers
10k
views
Some fundamental but important questions about web development?
I've developed some web-based applications till now using PHP, Python and Java. But some fundamental but very important questions are still beyond my knowledge, so I made this post to get help and ...
- 7,619
62
votes
6
answers
109k
views
Get Memory Usage in Android
Is there any API by which we can get CPU or Memory usage of android?
I have tried one code as below:
package com.infostretch.mainactivity;
import java.io.BufferedReader;
import java.io....
- 4,168
61
votes
7
answers
132k
views
High CPU Utilization in java application - why?
I have a Java Application (web-based) that at times shows very high CPU Utilization (almost 90%) for several hours. Linux TOP command shows this. On application restart, the problem goes away.
So to ...
- 8,620
60
votes
15
answers
34k
views
Command line command to auto-kill a command after a certain amount of time
I'd like to automatically kill a command after a certain amount of time. I have in mind an interface like this:
% constrain 300 ./foo args
Which would run "./foo" with "args" but automatically kill ...
- 26.8k
55
votes
7
answers
97k
views
How to get total cpu usage in Linux using C++
I am trying to get total cpu usage in %. First I should start by saying that "top" will simply not do, as there is a delay between cpu dumps, it requires 2 dumps and several seconds, which hangs my ...
- 1,651
52
votes
4
answers
167k
views
Prometheus - Convert cpu_user_seconds to CPU Usage %?
I'm monitoring docker containers via Prometheus.io. My problem is that I'm just getting cpu_user_seconds_total or cpu_system_seconds_total.
How to convert this ever-increasing value to a CPU ...
- 1,124
49
votes
3
answers
49k
views
Get CPU usage from application on iOS
How do I obtain CPU usage for an application? It's definitely possible, because there are application in App store (Activity Monitor Touch) which can show it.
- 6,012
43
votes
6
answers
25k
views
Simulate steady CPU load and spikes
How could I generate steady CPU load in C#, lower than 100% for a certain time? I would also like to be able to change the load amount after a certain period of time. How do you recommend to generate ...
- 11.3k
42
votes
9
answers
11k
views
Visual Studio 2013 Update 2 maxes out core
I recently installed Visual Studio 2013 Professional Update 2 on a Windows 7 virtual machine. I had been running VS 2012 with no problems, but I wanted to upgrade. Everything was working well for a ...
- 2,388
41
votes
6
answers
17k
views
I need a slow C# function
For some testing I'm doing I need a C# function that takes around 10 seconds to execute. It will be called from an ASPX page, but I need the function to eat up CPU time on the server, not rendering ...
- 4,955
41
votes
5
answers
67k
views
what are the meaning of values at proc/[pid]/stat?
I was trying to develop an app to get CPU usage per app and kill apps when consuming much CPU. But I couldn't figure out how to do this.
I have read this post and have seen this answer. So I looked ...
- 526
39
votes
5
answers
66k
views
c# calculate CPU usage for a specific application
I'm trying to figure out how to get the CPU usage for a particular process but can only find information relating to overall CPU usage.
Does anyone know how to extract the current CPU usage in ...
- 11.3k
39
votes
2
answers
29k
views
Why the cpu performance counter kept reporting 0% cpu usage?
PerformanceCounter cpuload = new PerformanceCounter();
cpuload.CategoryName = "Processor";
cpuload.CounterName = "% Processor Time";
cpuload.InstanceName = "_Total";
Console.WriteLine(cpuload....
- 63.3k
39
votes
7
answers
31k
views
CPU Intensive Calculation Examples?
I need a few easily implementable single cpu and memory intensive calculations that I can write in java for a test thread scheduler.
They should be slightly time consuming, but more importantly ...
- 8,649
36
votes
3
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What counts as CPU Intensive tasks (eg. sorting, searching etc?) [closed]
What do you count as a CPU intensive task. In terms of ... an algorithm/code for example (not so much a use case like video editing etc). Reason is it seems the main reason not to use NodeJS something ...
- 86.5k
36
votes
7
answers
42k
views
Monitor cpu usage per thread in java?
I would like to ask whether there is some simple way to determine cpu usage per thread in java. Thanks
- 526
35
votes
7
answers
24k
views
jQuery animate() and browser performance
I've got some elements that I'm moving across the page very slowly. Essentially, I'm decreasing the left margin of two images over a span of 40 seconds or so.
Visually, it's working beautifully. ...
- 2,601
32
votes
5
answers
56k
views
How to get CPU usage and RAM usage without exec?
How does VBulletin get the system information without the use of exec? Is there any other information I can get about the server without exec? I am interested in:
bandwidth used
system type
CPU speed/...
- 4,753
32
votes
9
answers
55k
views
How to get current CPU and RAM usage in C++?
is it possible, in C++, to get the current RAM and CPU usage? Is there a platform-indepentent function call?
- 23.7k
31
votes
4
answers
10k
views
What is the meaning of Incl CPU Time, Excl CPU Time, Incl Real CPU Time, Excl Real CPU Time in traceview?
1) Exclusive time is the time spent in the method
2) Inclusive time is the time spent in the method plus the time spent in any called functions
3) We refer to calling methods as "parents" and called ...
- 1,418
31
votes
3
answers
26k
views
Chrome Headless puppeteer too much CPU
I have a scraping algorithm in nodejs with puppeteer which scrapes 5 pages concurrently and when it finishes with one page it pulls the next url from a queue and open it in the same page. The CPU is ...
- 1,678
31
votes
2
answers
40k
views
Docker stats with CPU percentage more than 100
I have a question about docker stats command if anyone can help me. I am new in Docker area and I want to monitor the cpu usage of a docker container.
The physical machine has 8 cores (CPU0...CPU7). I ...
- 443
30
votes
4
answers
29k
views
Get Docker Container CPU Usage as Percentage
Docker provides an interactive stats command, docker stats [cid] which gives up to date information on the CPU usage, like so:
CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
...
- 3,481
30
votes
4
answers
63k
views
Get current CPU, RAM and Disk drive usage in C#
How to get the CPU, RAM and Disk drive usage of the system in C# code?
- 16.8k
29
votes
3
answers
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views
Limit total CPU usage in python multiprocessing
I am using multiprocessing.Pool.imap to run many independent jobs in parallel using Python 2.7 on Windows 7. With the default settings, my total CPU usage is pegged at 100%, as measured by Windows ...
- 1,182
27
votes
4
answers
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views
efilogin-helper running continuously at high cpu on MacBook Pro [closed]
There is a process launched by launchd called efilogin-helper running as root, which is continuously running at high CPU load (60% to 120%)
Do you know what this process is and how I can get it under ...
- 4,411
27
votes
5
answers
7k
views
Simple TextView.setText causes 40% CPU Usage
Running my application causes ~40% CPU usage on my Phone:
final String position = String.format("%02d:%02d:%02d", time.getHours(), time.getMinutes(),
time.getSeconds());
getActivity()....
- 1,210
26
votes
5
answers
18k
views
Enable Live Graph in Memory Usage while Debugging in Visual Studio
Somehow I have lost the live graph from my Visual Studio Diagnostic Tool.
Below is my current debugging screen showing that I can not see Memory and CPU usage live graph :
Where as I am looking for ...
- 954
26
votes
1
answer
29k
views
Limiting a Docker Container to a single cpu core
I'm trying to build a system which runs pieces of code in consistent conditions, and one way I imagine this being possible is to run the various programs in docker containers with the same layout, ...
- 2,548
25
votes
2
answers
30k
views
Redis performance on a multi core CPU
I am looking around redis to provide me an intermediate cache storage with a lot of computation around set operations like intersection and union.
I have looked at the redis website, and found that ...
- 2,558
25
votes
5
answers
4k
views
Write code to make CPU usage display a sine wave
Write code in your favorite language
and let Windows Task Manager represent
a sine wave in CPU Usage History.
This is a technical interview quiz from Microsoft China.
I think it's a good question....
- 495
25
votes
3
answers
50k
views
Limit the memory and cpu available for a user in Linux
I am a little concerned with the amount of resources that I can use in a shared machine. Is there any way to test if the administrator has a limit in the amount of resources that I can use? And if ...
- 20.7k
24
votes
5
answers
26k
views
CPU and memory usage of jemalloc as compared to glibc malloc
I had recently learnt about jemalloc, it is the memory allocator used by firefox. I have tried integrating jemalloc into my system by overriding new and delete operator and calling the jemalloc ...
- 661
24
votes
7
answers
37k
views
How to get the cpu usage per thread on windows (win32)
Looking for Win32 API functions, C++ or Delphi sample code that tells me the CPU usage (percent and/or total CPU time) of a thread (not the total for a process). I have the thread ID.
I know that ...
- 2,878