Timing your Code

11.17. Timing your Code#

import time
start = time.time()  # tells time in second
"the code you want to test stays here"
end = time.time()
print(end - start)

7.510185241699219e-05

use magic command

there are some magic commands in jupyter notebook which u can use to measure time
‘%time’
- It is used if you want to measure time of one statement
- If using %,write the statement just after you write %time
  - eg, %time [your statement] -‘%%time’
- It is used if you want to measure time of whole cell
- If using %%,don’t write anything on same line ie,code should start from next line
  - eg, %%time
    
    [your code]
- this can be used for above scenario as well if you write the statement in below line

%time [i for i in range(1,10,2)]

CPU times: user 6 µs, sys: 0 ns, total: 6 µs
Wall time: 10 µs

[1, 3, 5, 7, 9]

%%time
l=[i for i in range(1,100000,2)]
l=l*22

CPU times: user 5.23 ms, sys: 3 ms, total: 8.23 ms
Wall time: 8.15 ms