0
votes
1answer
83 views

Centos running very slow in Virtualbox

I am running Centos 7 in Virtualbox 4.3.14. The VM is configured with 2 CPUs 4 GB RAM 3.10.0-123.4.4.el7.x86_64 kernel The host machine is running Windows 7 Pro SP1 64-bit Intel i7-4790 CPU, ...
1
vote
2answers
18 views

The CPU visible in Resource Manager are physical cores or logical processors?

The Resource Manager that pops out from Task Manager in Windows Operating Systems shows CPU consumption on the CPU tab for each of the different CPUs. I get 4 CPUs on my tab. Are they all physical ...
0
votes
2answers
73 views

CPU usage 99% constantly

My computer is running windows 8, and suddenly started running slowly. When I open the task manager, it tells me that the CPU is using 99% - sometimes the disk usages jumps up as well. The strange ...
1
vote
1answer
47 views

Software to do specific CPU load test [closed]

For the purpose of testing my own script that reports CPU usage I'm looking for a program to put CPU under a certain workload, for instance: 10%, 20%, etc. up to 100%. Is there a program that can do ...
1
vote
1answer
591 views

High System process CPU usage (Queue/Dequeue+TrimAlllSystemPagableMemory)

I have ASUS G75VX laptop with latest Windows 8.1 (not Pro), all updates installed. Task manager says it's the System process that takes my entire single CPU. When this high single CPU saturation ...
0
votes
3answers
99 views

How to give 100 percent CPU usage to a process

(windows 8.1 machine with i3) Is it possible to put a process using 100% of my CPU? I have a rather "slow poke" CPU and after a while working with an application, it gets really slow. I'm wondering ...
0
votes
2answers
108 views

Sometimes when I check my CPU usage, my 2nd CPU (#1) is stuck going around 90% while the others are around 20% max

i have checked the 'affinity' of all my processes and all of them are set to all CPUs, yet I check my CPU usage and my 2nd CPU (it's called #1 because my first CPU is #0) is jumping around 90% and ...
0
votes
1answer
2k views

Windows 8.1 Pro - CPU Usage Stays at 100%

About an hour ago, I noticed that my laptop had gotten noticeably slower. My laptop is extremely fast, so this extreme decrease in performance prompted me to look at the task manager. In the task ...
1
vote
0answers
100 views

Windows unresponsive, CPU utilization uninformative

In many situations my Windows 7 box becomes unresponsive, but the Task Manager shows 0 CPU utilization for all processes. Obviously it is the kernel/Windows itself that is sucking all the cycles and ...
0
votes
1answer
90 views

How to stress the Windows XP kernel?

We have intermittant problems with writing DVDs where the writing process fails. We suspect that the problem is happening when the DVD driver switches from DMA mode to PIO mode and then in this mode ...
0
votes
2answers
184 views

Reducing RAM and CPU usage on a specific manually selected process

I'm using a very nice desktop software for Gmail (and other email providers): Mailbird. But it consumes too much RAM and CPU, so I have to close it sometimes. I'd like to know if there is any ...
3
votes
0answers
2k views

High CPU usage by dwm.exe when nothing is happening

Setup: Windows 7 Ultimate, running in a VMware box inside Windows 8, VMware Tools installed; VMware Workstation is the only application launched in win8). Aero is on. Starting a few months ago, on ...
2
votes
2answers
1k views

High CPU load from System when idle

I run Windows 8 Pro 64bit on a ~3 year old Sony Vaio. Pretty much since I installed Windows 8 I get high CPU load when I leave the system alone for a couple of minutes. The high load will continue ...
0
votes
3answers
917 views

Hard drive dying? One CPU core runs at 50% but System Idle Process at 99%

I think I have a hard drive or video card dying in my HTPC. It's a dual core CPU and one processor is almost always at 100% usage, but processes are all nil, System Idle Process is at 99% It's a ...
0
votes
0answers
125 views

Sudden drop in CPU - unclear root cause

Trying to diagnose why my computer suddenly comes to a CPU standstill (somehow related to plugging in the computer to power packs / recharging). One thing that has prevented me from diagnosing the ...
1
vote
2answers
100 views

CPU usage and speed of program

This is for my server. The scenario goes as follows: Computer A has a faster processor than computer B. They both execute the same program, but Computer A's CPU usage only goes up to 30% while ...
1
vote
1answer
1k views

Opera - How to make it run faster?

I'm using Opera version 12.13 under Windows XP home. It needs ~50% of my CPU and it takes a few seconds if open or close a tab. How can I make it run faster and if possible with less CPU usage? I ...
4
votes
1answer
516 views

Low FPS in some games, but hardware not fully used

I just did a little funny experiment in the game/sim "Train Simulator 2013". I normally have good FPS in it (around 30) at full settings. What I did was make a really, really long train so that the ...
4
votes
3answers
7k views

Why won't Windows use the other CPU cores?

In Windows Task Manager the Performance tab shows the first CPU maxed out, the other 7 just idling along with the occasional spike. What gives? More info: I've got 8GB and only 4.5GB are being used. ...
1
vote
2answers
2k views

Computer experiencing slowdowns and lockups despite low cpu useage

My setup... i5-2300 nvidia gtx 550 ti 6 gigs ram 600 w ocz modular psu I recently reformatted and I am already experiencing drastic slowdown as soon as windows comes up. This includes repeated ...
0
votes
1answer
6k views

explorer.exe hogging CPU, slow folder browsing

My computer is snappy when I log in from a fresh reboot. Within a short while, it becomes almost unusably slow depending on what I want to do. In particular, any Windows-y actions are slow while ...
0
votes
3answers
3k views

audiodg.exe is hogging my CPU

Every time I play audio on my computer, it starts lagging badly. After checking with the processes, audiodg.exe is being a greedy b** and hogging my CPU. I've tried ending the process (with regret) ...
0
votes
1answer
172 views

Can't diagnose why all of a sudden my computer is incredibly slow even though the cpu%, or mem usage doesn't change

I have had 3 operating systems(Ubuntu, Win7, Win8) on my computer and I have reformatted the drive for every new install. Sometimes all of a sudden my computer is really slow(I can barely minimize a ...
1
vote
0answers
525 views

Virtualized guest vs host CPU usage

I am using qemu with kvm as my hypervisor. I am running a gentoo guest on an ubuntu host. The guest is being given a single processor. When I run a compute intensive job (say empty-loop) I get almost ...
33
votes
12answers
36k views

How can I produce high CPU load on Windows?

For testing purposes I need to generate high CPU load on a Windows Server 2003. I cannot install any software but have to make do with what Windows provides. What would be the best way to achieve ...
1
vote
1answer
1k views

ffmpeg not using full CPU power

I have a Dell Precision 490 workstation, running Ubuntu 11.10, with two dual core Xeon 5160 CPUs (so 2 physical CPUs, with 2 cores each), which I am using to encode TV recordings (MPEG2) to H264 using ...
0
votes
1answer
867 views

Windows 7 , CPU usage hikes up to 100%

I am having this issue of lag in Windows 7 Professional, the CPU usage is 100%, even if I am only watching video on GOM player, nothing else is open, but the usage is 100%, or if I open Firefox/Chrome ...
7
votes
2answers
6k views

How to decrease the CPU usage when running Virtual Box?

I am facing an issue with 100% CPU usage under my system when running VirtualBox. Here are some further details: My System Information: CPU 1 name: Intel(R) Pentium(R) Dual CPU T2310 @ ...
7
votes
5answers
11k views

Why does Firefox cause high-CPU-usage “spikes” every few seconds?

When I start Firefox, I have no problems for a while, but after a couple of days, CPU spikes start to occur. During a spike, Firefox freezes and then stops. Spikes occur every seven to ten seconds, ...
2
votes
3answers
211 views

Why do installers use so much CPU time?

I've noticed when installing large pieces of software on Windows (Visual Studio, SQL Server, Office, and things of that nature) the installer tends to hang for large periods of time at or near 100% ...
1
vote
1answer
179 views

Is it possible to sleep a process by force externally?

Say we have a game that runs 100% cpu time via its global loop. However, we need to 'sleep()' its main process externally so that it goes to lower cpu time. We do not have access to its source. Is ...
3
votes
3answers
2k views

cpu usage nearly 100 constantly windows xp sp3

When running some heavy applications like games or virtual box for some time.. the cpu usage is normal for some 15 mins and then suddently cpu usage increases. even after i quit the heavy apps and ...
3
votes
5answers
2k views

Excel performance improvement

I have an 8 CPU 3GHz Windows machine that is estimated to finish a calculation using Excel in 16 days based on a sample data test. This performance is not acceptable(!). The calculation does not use ...
3
votes
5answers
2k views

What is Firefox doing?

If one watches Firefox's CPU consumption, one can see it consuming large amounts of CPU even while it's not being interacted with. On lower-spec computers, this can cause performance problems that ...
2
votes
5answers
799 views

What might cause a severe slowdown on a PC without showing high CPU usage?

A friend's Windows XP laptop has become extremely unresponsive over the last few days, taking over 30 seconds to open My Computer for example and a over a minute to open a locally stored Word ...
0
votes
5answers
5k views

Why does my CPU fan race when running videos or virtual machines?

I have: Windows Vista Home 32-Bit SP1 Intel Celeron CPU 3.06 GHz 2 GB RAM I installed the operating system about a year ago, has been working fine. However about 3 months ago, the CPU fan has ...