Hot answers tagged cpu
12
No, the OS and CPU will decide what to run and when. in the simple example you have shown, to the exclusion of other tasks, yes those would most likely run in parallel on separate cores, but there is rarely a guarantee that that will be the case.
You can use the thread affinity to attempt to take some control over the allocation of a core to a given ...
10
You cannot guarantee in .Net that two Threads run on two separate cores. In fact, you also cannot guarantee that one Thread will run on only one core(!).
This is because managed threads are not the same as OS threads - a single managed Thread may use multiple OS threads to support it. In C#, you only ever deal directly with managed Threads (at least, ...
5
64 bit processor - according to cpu-z it supports EMT64T - this is intel's version of the x86_64 instruction set. Probably had a 32 bit OS pre-installed - I think that was the period of transition between vista and XP, and while vista had proper 64 bit support, XP64 was a mess. There's a lot of systems that can handle 64 bits, but have 32 bit OSes installed.
...
4
Hertz is a measure of cyclic change. (It used to be "cycles per second" before they changed it to honor Heinrich Hertz.) In a CPU, Hertz describes clock rate, which is the frequency of a periodic signal that goes out to coordinate what the CPU is doing. The faster the clock, the more instructions the CPU can execute.
Note that clock speed is only one ...
4
Yes. Your overclocking failed and is making the CPU slower because it is throttling. Are you 100% sure your cooling block is properly mated to the CPU? Are you sure coolant is flowing? What's your max temperature at full load at factory clocking? (If you didn't measure that first, you are not overclocking properly.)
4
Core2 is the name is the name for a microarchitecture. It encompasses a whole CPU family
There are single core CPU's based on the core2 architecture.
There are dual core core2 CPU's based on the core2 architecture. (Often called core2 duo)
There are quad core core2 CPU's based on the core2 architecture. (Often called core2 quad).
Thus calling a core 2 ...
4
The job of the (main) CPU is to be the byte fetcher and processor
through its lifetime phase
Nope, I'd argue the memory controller is the "byte fetcher". And indeed, your CPU is much more capable than just being a "byte-fetcher", although it is good to see it as a base-control unit for the entire computer.
Consider loading a texture into your GPU ...
3
Is the speaker plugged in? It should beep if there is a POST error. Remove the RAM (memory) and video card, leaving in the CPU and heatsink/fan, and you should hear three beeps.
Is the power to the video card plugged in? Does it need extra power?
Is the motherboard properly mounted and not shorting itself out? Pull the motherboard out of the case and try ...
3
As @Mokubai pointed out, the performance and power targets for Atom were significantly lower (though the Athlon is 65nm and the Atom 45nm). Microarchitectural differences include:
Atom uses in-order execution, Athlon uses out-of-order execution. Advantage Athlon.
Atom has simultaneous multithreading (hyperthreading). Advantage Atom (on most ...
2
Virtually all CPU's produced this side of the millennium have heat sensors. They are standardized and tend to work well enough that no one really thinks about how they get their information across except hardware manufacturers.
The temperature is monitored in the BIOS, which usually has a setting to control the warning temperature and the shutdown ...
2
The easiest way I know to do this is to use top in batch mode and single iteration:
$ top -bn 1| grep Cpu
%Cpu(s): 5.0 us, 2.8 sy, 0.0 ni, 91.4 id, 0.5 wa, 0.0 hi, 0.2 si, 0.0 st
See my answer here for an explanation of the fields. Suffice it to say you want the sum of us, sy and ni so some parsing is required:
$ top -bn 1| grep Cpu | gawk ...
2
Actually, the about:memory tab does show memory allocation by tab; it's just a bit difficult to grok.
When you go to about:memory, you should see a list of memory allocations arranged hierarchically. The first top-level item in the list should be "Explicit Allocations". Under that are several leaf nodes. The one you are looking for is "window-objects". ...
2
No, but it could always run cooler. The max temp seems to be 85. If you're worried about it, try cleaning out the fans with compressed air or getting one of those laptop cooling pads.
Source: http://www.cpu-world.com/CPUs/Core_i3/Intel-Core%20i3%20Mobile%20i3-2350M.html
2
The most likely cause is that the computer was purchased in June 2010. Three years is old age for most laptops and you can expect some problems. You should try the following (in this order):
Open the laptop and clean it thoroughly using a can of compressed air. Make sure you clean the CPU fan, heat sink and air intake and exit grilles. If you have never ...
1
Is it silver-based thermal paste? If so, its not particularly conductive to electricity, but it does have some capacitance. If it is in contact with any of the connections on the CPU, motherboard, RAM, or video card, it could potentially cause the problems you are encountering. It can essentially slow down data flow, which can generate errors causing the ...
1
That seems like a more than adequate spec for 'photo editing and Casual gaming'. Depending on how heavy duty your video editing needs are, you might want more RAM - sadly this mobo tops out at 16GB.
Also note that if you're using Windows, you'll need to use the 64bit version to make use of the RAM you've got.
1
you can redirect the output of the sensors command to a file using the >> operator of the shell
while [true]
do
sensors >> */your/file/here*
sleep 1
done
The >> operator redirects standard output of a command to a file so in this case it will write the output of sensors to the file you name. 1 second is pretty frequent so you'll want to ...
1
The Ivy Bridge CPUs are getting very hot becasue of the pool thermal interface material used by Intel inside the CPU. Read this article to understand why:
http://en.wikipedia.org/wiki/Ivy_Bridge_%28microarchitecture%29#Thermal_performance_and_heat_issues
Reduce the OC to avoid damage.
1
I am sure some have heard of direct memory accessing, but how is this logical?
(Having written device drivers that utilize DMA and also wrote the DMA driver for a UNIX, I am probably qualified to answer your questions.)
Yes I am familiar with DMA.
There's nothing "not logical" about it.
The job of the (main) CPU is to be the byte fetcher and ...
1
There's a chance you damaged your CPU, though most CPUs these days have over-temp protections which kill the system's power before damage occurs, as you found out.
I would check the BIOS settings first - My motherboards reset the configuration to a failsafe if the system is overclocked and fails to boot, or if it hits the temperature cutoff.
Make sure the ...
1
Sounds damaged to me. To add to to Darth Androids answer, it may be worth reseating your processor (although, I dought it will help). Also if you can manage to get back into windows, give CPU-Z a gander to see the clock speed and see if the multiplier changes.
On a side note, I reset the BIOS config as a last ditch effort on an Atholon XP processor I ...
1
You have no need to worry. The thermal pad that comes with Intel chips is a very cheap thermal paste that is just designed for quick usage with an Intel heatsink. So basically it is designed to be ready to go out of the box.
The Artic Silver 5 thermal paste you put on is far more effective at wicking away heat from the processor. Assuming that you've ...
1
The Intel Atom 570 is an 8.5W TDP processor while the TK-57 is a 35 TDP processor. While TDP is not a definite mark of higher processor performance it does imply a higher level of complexity in the Athlon processor.
For processors operating at similar frequencies and using somewhat similar production processes (TK-57 is 60nm, N570 is 45nm) the TDP is a ...
1
You could also check CPUWorld:
http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20E8500%20EU80570PJ0876M%20-%20AT80570PJ0876M%20(BX80570E8500).html
Data width 64 bit
1
Depends what you want:
/usr/bin/top returns info, given a number of iterations or other specifiers, that will help you;
/proc/cpuinfo shows what number of cpus you have, to help your tool figure out usage stats;
For interactive use in Ubuntu, there are desktop widgets to display what you want graphically. For instance: ...
1
I am echoing the string because my system's mpstat is different from what you show in your question but it should work if your output is what you have posted.
<?
$string="the name of my server 2.19 2.21 2.30 2.26 2.22 2.20 2.14 2.09 2.07 0";
$output=system("echo $string | perl -ne '/^.+?\s+([\d\. ]+)/; print \"$1\"'");
echo "$output <br>";
?>
...
1
Merely touching the sides of the video card won't do anything bad (unless you hit the fan or something). However, if you touched some of the circuitry, without following proper electrostatic discharge (ESD) precautions, like grounding yourself, using an antistatic wrist strap, and working on an antistatic mat, there is a possibility that you may have had an ...
1
If you watch Michael Steil's presentation on reverse engineering the 6502 (http://www.youtube.com/watch?v=fWqBmmPQP40), you'll see at around 42:15 that he explains what happens when RESET occurs. As part of the RESET handling, the 6502 actually does push the PC and P values. The stack pointer starts at 0x100 and after pushing those three bytes, ends up at ...
1
check out this program:
https://github.com/Sepero/temp-throttle
it throttles the frequency of your cpu when it gets too hot, so that it doesn't overheat. once the temperature is below an acceptable level, it increases the frequency again.
i tested it out, and it seems to work quite well. i haven't had any overheating issues, even on days where the ...
1
To know if the installed Ubuntu is of 32 or 64 bits:
getconf LONG_BIT
uname -m
If it shows i686 or i386 it means 32-bits.
If it shows x86_64 it means 64-bits.
If the CPU is 32 bit, Ubuntu must also be 32-bit.
If the CPU is 64 bit it can work with 64- or 32-bit OSes. We can choose to install 32- or 64-bit Ubuntu.
To know if the CPU is of 32 or 64 bits:
...
Only top voted, non community-wiki answers of a minimum length are eligible
