Top "Cpu" questions

The central processing unit or "processor" inside a computer which executes the instructions in a computer program.

CPU Cycle count based profiling in C/C++ Linux x86_64

I am using the following code to profile my operations to optimize on cpu cycles taken in my functions. static __…

c profiling x86-64 cpu rdtsc
Threads configuration based on no. of CPU-cores

Scenario : I have a sample application and I have 3 different system configuration - - 2 core processor, 2 GB RAM, 60 GB HHD, …

java multithreading threadpool cpu akka
linux migration process cpu usage is so high, why?

I find cpu useage of my linux server is so high. See the following(ps aux | grep migration): root 6 99.8 0.0 0 0 ? S …

linux process cpu cpu-usage high-load
What is the "relationship" between addi and subi?

I'm supposed to answer this question. After some research it says that add and sub have the same opcode and …

assembly cpu mips nios
Why do we use CPUs for ray tracing instead of GPUs?

After doing some research on rasterisation and ray tracing. I have discovered that there is not much information on how …

gpu cpu hardware raytracing rasterizing
CPU SIMD vs GPU SIMD?

GPU uses the SIMD paradigm, that is, the same portion of code will be executed in parallel, and applied to …

parallel-processing gpu cpu simd
Optimal CPU utilization thresholds

I have built software that I deploy on Windows 2003 server. The software runs as a service continuously and it's the …

performance multithreading cpu throughput
How many SHA256 hashes can a modern computer compute?

I want to know the mathematical time required for cracking hashes based off different sets of characters. For example, using …

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Detect current CPU Clock Speed Programmatically on OS X?

I just bought a nifty MBA 13" Core i7. I'm told the CPU speed varies automatically, and pretty wildly, too. I'd …

macos cpu clock cpu-speed
C++ While loop, usleep()/sleep() how not to use 90% of CPU? (Ubuntu 12.04)

Suppose I have C++ code such as #include "myheaderfiles.h" //..some stuff //...some more stuff int main() { double milliseconds; int …

c++ while-loop cpu usleep