Time clock has microsecond granularity but time time s granularity is 1 60th of a second.
Timeit timeit wall clock.
The timeit and time magics.
On either platform default timer measures wall clock time not the cpu.
Another important concept is the so called system time which is measured by the system clock.
On unix time clock has 1 100th of a second granularity and time time is much more precise.
Python3 m timeit join str n for n in range 100 10000 loops best of 5.
On either platform default timer measures wall clock time not the cpu time.
27 5 usec per loop python3 m timeit join map str range 100 10000.
On unix clock has 1 100th of a second granularity and time is much more precise.
On unix time clock has 1 100th of a second granularity and time time is much more precise.
On windows time clock has microsecond granularity but time time s granularity is 1 60th of a second.
The wall clock time is also called elapsed or running time.
For this example let us compare two sorting functions one is a simple bubble sort and the other is the python s built in sorted function.
It is used to get the execution time taken for the small code given.
On either platform the default timer functions measure wall clock time not the cpu time.
30 2 usec per loop python3 m timeit join str n for n in range 100 10000 loops best of 5.
Now let us look at a way to use this amazing library to compare two functions.
On unix time clock has 1 100th of a second granularity and time time is much more precise.
The following example shows how the command line interface can be used to compare three different expressions.
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Compared to the cpu time the wall clock time is often longer because the cpu executing the measured program may also be executing other program s instructions at the same time.
All we did was to pass the code as a string and specify the number of iterations to the timeit timeit function.
The library runs the code statement 1 million times and provides the minimum time taken from the set.
On windows time clock has microsecond granularity but time time s granularity is 1 60th of a second.
On either platform the default timer functions measure wall clock time not the cpu time.