> export TIMEFORMAT="%2Rsec %2Uusr %2Ssys (%P%% cpu)"

> time python ticks.py
delta process: user: 9263 sys: 2987
delta all: user: 6034 sys: 2178
67.35sec 92.64usr 29.89sys (181.94% cpu)

> time perl /tmp/pticks
delta process: user: 2917  sys: 3
delta all: user: 2926  sys:  25
3.36sec 29.20usr 0.03sys (870.05% cpu)
---

For 9 threads:

lang    #thrds  #coresuse  %efficency
python    9          1.82       20.2%
perl      9          8.70       96.7%