A CPU (Central Processing Unit) is the chip responsible for actually "doing" most the instructions given to a computer.

learn more… | top users | synonyms (2)

3
votes
2answers
7k views

How to Track CPU and Memory Usage Per Process

I have seen this question asked on here before but was unable to follow the answer which was given. I would like to monitor a processes CPU, Memory, and possibly GPU usage over a given time. The ...
2
votes
2answers
171 views

How can I identify a hardware product?

How can I identify different hardware components (hard drive, cpu, gpu, etc). Based on it's manufacturer. For example, Nvidia Geforce GTX 580, several manufacturers, all differently priced, some may ...
0
votes
2answers
1k views

htop does not show all processes

I'm using Ubuntu 12.04 with LXDE desktop environment. Sometimes my computer runs really slowly and the LXDE its CPU graphic shows a permanent 100% CPU usage. However, when I'm opening htop in a ...
0
votes
3answers
988 views

What BIOS settings should I tweak to maximize performance? [closed]

What are some BIOS settings that I should tweak to maximize performance of a dual-CPU workstation (if I don't care about power consumption)? I have an ASUS Z8NA-D6. update I have two Xeon x5670s on ...
160
votes
15answers
28k views

Is the performance of a CPU affected as it ages? [closed]

This is a hypothetical question about how a CPU operates. If I purchase two identical CPUs, and use one long term (say one year), will it be identical in speed to the unused CPU? Will the number of ...
2
votes
2answers
1k views

Switched CPU on Dell Optiplex GX520, BIOS says it's incompatible

Motherboard and the new CPU should be compatible. The old one was a Celeron. This is the motherboard and this is the CPU. How do I update the BIOS in a situation where I can't boot? Do I have to the ...
6
votes
1answer
10k views

What does the numbers and figures listed on Processors stand for? [closed]

if you look into current Intel processors then you would notice number of things, few are as below. i3, i5 and i7. What does their name stands for. Sandy bridge and Ivy bridge Some figures ...
2
votes
3answers
1k views

Kill ssh session and/or stuck processes

I'm developing with vi over ssh. My problem is that sometimes I get my ssh connection killed because of my poor wifi connection and previous processes (like "top", "rails c", etc...) are not being ...
1
vote
3answers
556 views

Will multicore allow the same CPU usage as multi CPU [duplicate]

Possible Duplicate: Multi-core CPU: can I say I have a 3x2.1GHz=6.3GHz CPU? I plan to buy latop with with i5-2410M processor that have 2 cores (according to spec it can also have 4 threads). I ...
2
votes
1answer
1k views

Why does my Intel i5 (480M) only shows one core, two threads on Windows 8 RP?

I've only had Windows 8 RP on my notebook for 2 days now, there are many things, such as Hyper-V, that works on it. The notebook (MSI FX603-064US) has performed well with Windows 7 Pro x64 since ...
1
vote
1answer
3k views

i5-3210M to an intel i7-3610QM?

If i want to upgrade my processor in my laptop from a i5-3210M to an i7-3610QM what else, if anything would i need to change? They both have the same sockets, I"m thinking i might need to upgrade the ...
4
votes
2answers
449 views

How to interpret CPU load average?

When I use command mpstat, I see an idle value, for example 25%. It means 75% of CPU power is used. If there are 4 cores on CPU, then does 25% idle mean that 3 cores are fully used and 1 core is not ...
3
votes
3answers
8k views

Understanding Processor Frequency part of cat /proc/cpuinfo

I was looking at my processor SPECS on my Ubuntu Linux 11.10 system. Here is the end of the output of the command cat /proc/cpuinfo: processor : 3 vendor_id : GenuineIntel cpu family : 6 model ...
14
votes
5answers
819 views

Are there seperate processors for Servers?

To my knowledge a Server PC and a desktop PC can have the same processor. But someone told me Servers are equipped with more powerful Processors (that is these processor are designed for Servers only)....
9
votes
4answers
2k views

Do multi-core CPUs still suffer from diminishing returns in today's world?

It has been shown in other questions that due to the state of computer applications, multi-core processors suffer from diminishing returns. Is this still the case in today's world? Do most new ...
6
votes
1answer
3k views

How do I get AVX support in QEMU?

I want to play with the new AVX instructions. I saw that QEMU might have support, so I built it from Git (yesterday). I set the CPU to SandyBridge and I booted Tiny Core Linux. TCL has kernel 3.0 and ...
0
votes
0answers
31 views

32-bit or 64-bit OS? [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I just built a new box which has an i7 3820 running as CPU. I usually run linux distros on my boxes. Is it best to go with a 64-bit distro ...
3
votes
3answers
562 views

What does it mean to say that a process is using 75% of a CPU's resources?

I thought that a core was responsible for processing a single thread. Hence, what does it mean when one says a process takes up 75% of resources? Is that memory? Computing power?
1
vote
1answer
228 views

Testing watercooling system under load

I recently built a new system based on the Intel Core i7 3820K. When I purchased the chip, the salesman informed me that the new intel chips no longer include a thermal solution of any kind. After ...
2
votes
2answers
3k views

Intel Core i5-3210M vs Intel Core i7-3610QM for programming task? [closed]

The title states the two processors I am concerned with, but the core of my question is this. Does one really need a high end processor for programming in Java & Web Development / Running MySQL / ...
2
votes
1answer
3k views

Flash stream makes my internet slow and cpu rush

When I try to watch a live Flash stream, my CPU usage goes up to 75% and my Internet speed goes down. If I run a test before the video-stream, my speed is ~40/10Mbps and during the stream it drops to ...
2
votes
3answers
2k views

Is my laptop processor 64bit?

I have a Lenovo Ideapad Y510. I have always used 32bit OS in it. Yesterday I came across this detail of my laptop and it says processor of my laptop is 64bit (hope I have not misinterpret anything) so ...
4
votes
5answers
3k views

Can I upgrade my laptop CPU

I have Lenovo Ideapad Y510 with dual core 1.6 Ghz processor, 1GB ram, 160GB HDD. I want to upgrade my current cpu with any latest one like i3, i5 or i7 to get more speed but don't know if it is ...
2
votes
1answer
358 views

Is it possible to watch interrupts on Windows?

With my linux box I can do the following to watch interrupts live: watch -n1 "cat /proc/interrupts" Is there a way to do this on Windows systems, especially Windows 7?
6
votes
1answer
2k views

Windows 8 Release Preview - Extremely High Idle CPU Usage

Using Windows 8 RP, my computer is sustaining a 26.6% CPU usage while sitting at the desktop doing absolutely nothing. The other day it was over 50%. The entire usage is due to a process called "...
2
votes
2answers
874 views

How can I “throttle” an application so that it doesn't use 100% CPU?

I use Arch Linux. I run the closed-source application Spotify. Recently, it's been displaying a very nasty bug though where it will use 100% of my CPU. My computer has been having some cooling ...
33
votes
5answers
8k views

Why can't you have both high instructions per cycle and high clock speed?

The Megahertz Myth became a promotional tactic due to differences between the PC's INTEL 8086 processor and Apple's Rockwell 6502 processor. The 8086 ran at 4.77MHz while the 6502 ran at 1MHz. ...
0
votes
2answers
3k views

Computer will not turn on after replacing CPU, PSU, and motherboard

I recently replaced the PSU, motherboard, and CPU after my computer shut off randomly. Now when I try to turn it on, I get no response. I've tried: Taking out the RAM A CMOS reset Swapping out the ...
8
votes
3answers
20k views

CPU temp very hot in BIOS but okay in RealTemp/Speedfan

I just built myself a new i7 2600k system with an Intel DP67BA motherboard. Booted into BIOS and was alarmed to find Processor temp reported at 75 C, and steadily rising... sat there while it rose to ...
0
votes
3answers
113 views

In terms of performance, which processor is more suitable? [closed]

My computer specs: Motherboard: Gigabyte GA-945PL-S3 OS: Microsoft Windows 7 Ultimate CPU Socket: LGA775 CPU: Intel® Core™2 Duo Processor E4300 (2M Cache, 1.80 GHz, 800 MHz FSB) After I bought new ...
3
votes
1answer
6k views

How to find process that's using 100% of CPU

As i'm looking at htop and top i see that my processor usage is 100% allways. But i can not see any process that is using that much CPU. Htop shows me only 1-2 processes that use around 5% cpu time. ...
0
votes
2answers
1k views

Max. Temp. on Intel Burn Test for Stock Dell Precision T3500

I'm troubleshooting an issue on a Dell Precision T3500. As part of my troubleshooting I've decided to try running a stress test using Intel Burn Test software. This machine is a stock configuration ...
4
votes
3answers
865 views

How to prevent processor state from automatically changing to 100%?

I like to slightly under-clock my processor to keep it cool. I use the following setting : But while playing games(usually for 4-5 minutes) the settings automatically jump back to 100%. I have also ...
1
vote
3answers
10k views

Is it normal for a CPU to be always be cooler than 30 degrees?

Everytime I measure the temperature of my CPU (Core i5 3570K) using the "acpi -t" command under GNU/Linux I get the same output: Thermal 0: ok, 29.8 degrees C Thermal 1: ok, 27.8 degrees C ...
5
votes
3answers
12k views

What's the correct Processor Architecture type to pick during Debian Installation?

I am trying to install debian on local computer with Windows 7 OS and intel core i5 processor. On the download page. I was asked to select my processor architecture with the following options listed ...
1
vote
1answer
103 views

Vostro 220 can't get CPU off motherboard

I can't seem to get the CPU off the motherboard to replace the motherboard. I've unscrewed the 4 screws on the outside but it just is stuck there. I've pulled and pulled but still nothing. I don't ...
1
vote
2answers
2k views

Processor remains underclocked even under load

My Core 2 Duo T7200 (nominal frequency 2 GHz) is constantly running at 1000 MHz. Here's an exerpt from /proc/cpuinfo: vendor_id : GenuineIntel cpu family : 6 model : 15 model ...
4
votes
1answer
895 views

Windows 7 gets stuck with ~1% CPU. Especially with multithreading

Windows 7 32 bit, up to date, Intel i7 860. (For some reason the company runs 32bit Windows everywhere.) I tried to update all motherboard drivers etc. as far as possible. I have a performance issue ...
3
votes
2answers
5k views

Intel Core i5-2467m - Turbo Boost not activating?

I have a Samsung Series 5 laptop with an Intel Core i5-2467m process @ 1.6Ghz. The processor supports Intel Turbo Boost up to 2.30 Ghz according to the specifications. The i5-2467m is a dual-core ...
0
votes
2answers
2k views

Can I upgrade AMD A6 3400M(1.4GHz) to the another AMD processor?

My laptop model is ASUS A43TA. The graphic card is excellent but the processor is not very powerful and I feel it could be better as sometimes my laptop become is slow and laggy. Is it possible to ...
2
votes
0answers
443 views

Dynamic/Static CPU Frequency Scaling

I need to manipulate frequency of each core in my I7 processor. There is a way to do it in Debian (http://wiki.debian.org/HowTo/CpuFrequencyScaling). But I want to do it on Linux Fedora and Window. ...
1
vote
2answers
4k views

Need program to monitor Laptop CPU and GPU temperatures - with SHUTDOWN support [closed]

I just received my HP TX2500 tablet back from laptop service (fried ATI GPU) and I need software to monitor temperatures which supports emergency system shutdown after it surpasses a specified limit.
1
vote
1answer
212 views

Remote Desktop - Check For Oveheating

Is it possible to check the current temperature of CPU through software (control panel, task manager, third party service) and whether the computer is overheating? I am connecting to a computer ...
0
votes
1answer
708 views

Intel T5600 to upgrade T5250

I want to upgrade my laptop which has T5250 CPU with a T5600 CPU to support virtualization. I ordered T5600 on ebay, but it didn't fit. It says T5250 supports PPGA478 socket, so I assume that is what ...
1
vote
1answer
230 views

How much force is required to push the CPU tab back down?

I'm building my PC, and I am installing the CPU right now. I have all the sides flush, and the triangle is in the bottom left corner like it says, but I am having a little bit of trouble getting the ...
2
votes
1answer
1k views

Performance and Battery Life

Okay, I'm looking for hard evidence to settle an argument. From a developers perspective, the argument of CPU usage and battery life comes into play often. If a CPU is throttled to use 10% of its ...
1
vote
2answers
2k views

underclocking Intel Core i7

My laptop's CPU is Intel Core i7 Q 720 . Works perfect but the bad side is overheating... Ive already tried to clean laptop and change thermopaste, it doesn't give any results. Is there any programs ...
1
vote
1answer
2k views

DOTA is hanging after launch

1 GB RAM Pentium 4 processor No graphics card, 128 MB default for the GUI. Windows XP SP2. When I play DOTA, the game runs up to 1 minute only. After that, the entire OS crashes. My drivers are up ...
2
votes
3answers
625 views

CPU not working on a specific motherboard

I'm making a computer for someone and I met a weird problem. The CPU that I have doesn't work on this motherboard. The CPU is an Intel Pentium D 925 and the motherboard is an ECS G41T-M6, which in ...
2
votes
2answers
10k views

atom n2600 is 64 bit or 32 bit?

I look at the intel spec sheet. It says that the processor has a 64 bit instruction set. However, running uname -m results in i686, and running grep flags /proc/cpuinfo indicates that each ...