CPU Busy Time Calculator

Calculate CPU Busy Time



Formula

The formula to calculate the CPU Busy Time (B) is:

\[ B = T - I \]

Where:

Definitions

Example

Let's say the total time (T) is 100 seconds and the idle time (I) is 30 seconds. Using the formula:

\[ B = 100 - 30 \]

We get:

\[ B = 70 \text{ seconds} \]

So, the CPU busy time is 70 seconds.

Extended information about "CPU-Busy-Time-Calculator"

How is CPU Time Calculated

Formula: \( \text{CPU Time} = \text{CPU Clock Cycles} \times \text{Clock Cycle Time} \)

Example: \( \text{CPU Time} = 10^6 \times 10^{-9} \)

Formula for CPU Time

Formula: \( \text{CPU Time} = \frac{\text{Instruction Count} \times \text{CPI}}{\text{Clock Rate}} \)

Example: \( \text{CPU Time} = \frac{10^6 \times 2}{2 \times 10^9} \)

CPU Execution Time Formula

Formula: \( \text{Execution Time} = \text{CPU Time} \times \text{Number of Processors} \)

Example: \( \text{Execution Time} = 0.5 \times 4 \)

User CPU Time and System CPU Time

Formula: \( \text{Total CPU Time} = \text{User CPU Time} + \text{System CPU Time} \)

Example: \( \text{Total CPU Time} = 0.3 + 0.2 \)

CPU Hours to Hours

Formula: \( \text{Hours} = \text{CPU Hours} \times \text{Number of CPUs} \)

Example: \( \text{Hours} = 5 \times 2 \)