I've found the following code from here "http://www.boyet.com/Articles/CodeFromInternet.html". It returns the speed of the CPU in GHz but works only on 32bit Windows. using System; using System.Management; namespace CpuSpeed { class Program { static double? GetCpuSpeedInGHz() { double? GHz = null; ...
When I used to program embedded systems and early 8/16-bit PCs (6502, 68K, 8086) I had a pretty good handle on exacly how long (in nanoseconds or microseconds) each instruction took to execute. Depending on family, one (or four) cycles equated to one "memory fetch", and without caches to worry about, you could guess timings based on the ...
Can increment of a register (in a loop) be used to determine the (effective) clock rate? I've naturally assumed it can, but I was commented that Cpu's may implant Super-scalar techniques that make this kind of computation useless. Also I was told that incrementing of registers on CPU can be done in less than one clock cycle. is it true...
Q1. What are best practices for a writing a code that does not consume CPU but still achieve a great performance? The question is very generic. What I seek over here is to list down different practices used for different environments? debugging tips besides process-monitor/task manager EDIT: I am not speaking of IO bound processes. I am...
If Moore's Law holds true, and CPUs/GPUs become increasingly fast, will software (and, by association, you software developers) still push the boundaries to the extent that you still need to optimize your code? Or will a naive factorial solution be good enough for your code (etc)? ...
I know this is a micro-optimization, so I ask out of pure curiosity. Logically, a microprocessor does not need to compare all the bits of both operands of an inequality operator in order to determine a "TRUE" result. Note, this is programming-related because it affects the execution speed of a program. ...
I want to repeat this question using python. Reason is I have access to 10 nodes in a cluster and each node is not identical. They range in performance and I want to find which is the best computer to use remotely based on memory and cpu-speed/cores available. EDIT: Heck, even just a command line interface would be useful. Any quick and...
I have c# Console app, Monte Carlo simulation entirely CPU bound, execution time is inversely proportional to the number of dedicated threads/cores available (I keep a 1:1 ratio between cores/threads). It currently runs daily on: AMD Opteron 275 @ 2.21 GHz (4 core) The app is multithread using 3 threads, the 4th thread is for another...
Hi there, Background: We have large flat files span around 60GB and are inserting into database. We are experiencing incremental performance downgrade during insertion. We have 174 (million) records and expecting another 50 (million) to be inserted We have splitted main table into 1000+ tables on the basis of first-two-characters of ...
I've written a game for Android, and I've tested it on the Dev Phone 1. It works perfectly, the speed is just right. However, I'm sure phone CPU's are getting faster. They may already be faster than the dev phone. How do I make sure that my game runs at the exact same speed no matter what the device or how fast it runs? Do you know ...
How can I get the CPU clock speed in C++? I am running Ubuntu 9.10 if that makes any difference. ...
On my Hyper-V host I change the CPU P-state through power management policies and I see a frequency change. In the guest, the maximum frequency is always reported. How can I get the real CPU frequency inside the virtual machine? ...
I was experimenting a lot with application profiling lately (using Visual Studio Performance Wizard). While working with Concurrency indicators, I've noticed the fact that when the application runs with multiple threads (both background and foreground) the cross-core context switch rate is quite high. Knowing that generally a large numb...
Hi, I would like to do some microbenchmarks, and try to do them right. Unfortunately dynamic frequency scaling makes benchmarking highly unreliable. Is there a way to programmatically (C++, Windows) find out if dynamic frequency scaling is enabled? If, can this be disabled in a program? Ive tried to just use a warmup phase that uses 10...
Though Its a n00bish question I'vent found any clear answer anywhere even after long days of googling. Recently I am Planning to Use a AMD Opteron Quad Core 2350 for my Home Lab. I'll not run it as a Pro Server. rather I'll use it for Development Only. It will have the following things 2 Instances of Apache Server (I'll Need this) 1...