I'm interesting in the time cost on a modern desktop cpu of some floating point operations in order to optimize a mathematical evaluation. In particular I'm interested on the comparison between complex operations like exp, log and simple operation like +, *, /.
I tried to search for these information, but I can't find a source.
I want to be able to get the current % CPU usage in a C++ program running under Wince.
I found this link that states where the source code is but I cannot find it in my platform builder installation - I expect this is because it isn't the Windows Automotive platform.
Does anyone know where I can find this source code or (even better) know how I…
Adobe flash: How to determine users CPU characteristics? (its mhz, its current ocupation) I need to know how fast is users computer now, and I have only 150 ms for it. How to do such thing in actionscript?
I installed my .NET windows service and right after installing I noticed mscorsvw.exe maxing out my CPU; this happens when I do a new install of my service.
Why is mscorsvw "interfering" with my windows service?
What exactly is the CPU Average field in VMM 2012 showing me?
I'm running Server 2008 R2 with VMM 2012. My server has 2x16 core CPUs installed.
An example virtual machine has 4 virtual processors, and shows 20% CPU usage. Is that:
20% of the entire system's available CPU power?
20% of 4 of the 32 core's CPU power?
20% of one core's CPU?…
As I learn more about C and C++ I'm starting to wonder: How can a compiler use newer features of processors without limiting it just to people with, for example, Intel Core i7's?
Think about it: new processors come out every year with lots of new technologies. However you can't just only target them since a significant portion of the market…
I need help understanding endianness inside CPU registers of x86 processors. I wrote this small assembly program:
section .data
section .bss
section .text
global _start
_start:
nop
mov eax, 0x78FF5ABC
mov ebx,'WXYZ'
nop ; GDB breakpoint here.
mov eax, 1
mov ebx, 0
int 0x80
I ran this program in GDB with a…
I'm developing a long-running multi-threaded Python application for Windows, and I want the process to know the CPU time that each of its threads has taken. I can get the overall times for the entire process with os.times() but I need to know the per-thread times.
I know that there are external tools such as the Sysinternals Process…
I am using Jquery to make an image scroll across my page horizontally. The only problem is that it uses a serious amount of cpu usage. Up to 100% on a single core laptop in firefox.
What could cause this???
Jquery
<script>
jQuery(document).ready(function() {
$(".speech").animate({backgroundPosition: "-6000px 0px"},…
I own a Dell Latitude E6520 with an Intel CPU (Core i7 2720QM). After installing cpufrequtils, I get the following message :
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Veuillez rapportez les erreurs et les bogues à cpufreq@vger.kernel.org, s'il vous plait.
analyse du CPU 0 :
**pas de pilotes cpufreq reconnu…
Hi,
I know there are a quite some answers existing on this question. However, I found none of them really bringing it to the point. Some argue that a cycle is (almost) the same as a strongly connected components (s. http://stackoverflow.com/questions/546655/finding-all-cycles-in-graph/549402#549402) , so one could use algorithms…
Just a quick one this, but useful for mature BizTalk solutions, where over time the configuration settings can get confused, meaning Debug configurations building in Release mode, or Deployment configurations building in Development mode. That can cause issues in the build which aren't obvious, so it's good to fix up the…
How can i get the result like example following. Any command or scripts?
Snapshot
u1234 3971 1.9 0.0 0 0 ? Z 20:00 0:00 [php]
u1234 4243 3.8 0.2 64128 43064 ? D 20:00 0:00 /usr/bin/php /home/u1234/public_html/index.php
u1234 4289 5.3 0.2 64128 43064 ? R 20:00 0:00 /usr/bin/php /home/u1234/public_html/index.php
u1234…
I recently got a nice Laserjet 8100DN for my house. I will probably never print more than 1% of its rated monthly duty cycle. But it runs some fairly noisy fans 24/7 if it's left on, so I am in the habit of turning the machine off as soon as I'm done with it.
So, for all you who have a lot of experiencing…
I am trying to get an alert from monit if it fails to restart a service 5 times, but I get a syntax error
/etc/monit/monit.d/engine.conf:5: Error: syntax error 'alert'
this is the engine.conf file:
check process engine with pidfile /var/run/engine.pid
group engine
start program = "/etc/init.d/engine…
I recently got a nice Laserjet 8100DN for my house. I will probably never print more than 1% of its rated monthly duty cycle. But it runs some fairly noisy fans 24/7 if it's left on, so I am in the habit of turning the machine off as soon as I'm done with it.
So, for all you who have a lot of experiencing…
I'm having an issue with my CPUID-based code on newer i7-based machines. It is detecting the CPU as having a single core with 8 HT units instead of 4 cores each with 2 HT units.
I must be misinterpreting the results of the CPUID information coming back from the CPU, but I can't see how.
Basically, I…
I'm trying to determine CPU usage of my PHP scripts. I just found this article which details how to find system and user CPU usage time (Section 4).
However, when I tried out the examples, I received completely different results.
The first example:
sleep(3);
$data = getrusage();
echo "User time:…
How can my application efficiently determine the following information peroidically while it executes:
1: current speed of each of the 8 CPU cores.
2: which core the code is currently executing on.
My application is C and assembly-language, so any solution in either C or assembly-language is fine. …
This is what I get when I start up the terminal:
bash: /dev/cgroup/cpu/user/2823/tasks: No such file or directory
bash: /dev/cgroup/cpu/user/2823/notify_on_release: No such file or directory
bash: /dev/cgroup/cpu/user/2823/tasks: No such file or directory
bash:…
est and 100% work perfectly Fujitsu LifeBook T4010D Laptop CPU Cooling Fan MCF-S4512AM05
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One of the FAQs we receive is whether C++ AMP can be used to target the CPU. For targeting multi-core we have a technology we released with VS2010 called PPL, which has had enhancements for VS 11 – that is what you should be using! FYI, it also has a Linux…
Possible Duplicate:
How can I install 12.04 on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”)
Virtualbox install 12.04 guest: “pae not present”
After loading ubuntu-12.04.1-desktop-i386.iso into my Oracle VM, the hard…