Top "Measurement" questions

Easily measure elapsed time

I am trying to use time() to measure various points of my program. What I don't understand is why the …

c++ c linux time measurement
How do I measure separate CPU core usage for a process?

Is there any way to measure a specific process CPU usage by cores? I know top is good for measuring …

linux multicore measurement performance
Font size relative to the user's screen resolution?

I have a fluid website and the menu is 20% of its width. I want the font size of the menu …

css measurement
Pixel to Centimeter?

I just want to know if the pixel unit is something that doesn't change, and if we can convert from …

pixel measurement dpi
Units of a Fourier Transform (FFT) when doing Spectral Analysis of a Signal

My question has to do with the physical meaning of the results of doing a spectral analysis of a signal, …

math physics fft measurement spectrum
How can I measure the speed of code written in PHP?

How can I say which class of many (which all do the same job) execute faster? is there a software …

php testing performance measurement
Stopwatch class for Java

Which Java class should you use for time performance measurements? (One could use any date/time class, but the reason …

java performance measurement
How do you measure page load speed?

I am trying to quantify "site slowness". In the olden days you just made sure that your HTML was lightweight, …

performance measurement
simplest tool to measure C program cache hit/miss and cpu time in linux?

I'm writing a small program in C, and I want to measure it's performance. I want to see how much …

performance cpu-cache measurement context-switch memcache-stats
Difference between android dimension: pt and dp

The documentation says that 160 dp (density-independent) equals 1 inch. And 72 pt is also 1 inch. So I don't see why android define …

android measurement dimension