yeah, I was using a slightly fancy SLC SD card. I would expect bash to
be faster, it has way less to do, however 0.4 seconds is not 2-3 seconds.
Alan.
On 08/11/13 17:03, Tyler J. Wagner wrote:
Twice that, on a class 10 SD card:
root@raspberrypi:~# cat > hello.py
print "Hello, World!"
root@raspberrypi:~# time python hello.py
Hello, World!
real 0m0.443s
user 0m0.140s
sys 0m0.090s
But it could just be a slow filesystem. Running it repeatedly, it's faster:
root@raspberrypi:~# time python /root/hello.py
Hello, World!
real 0m0.223s
user 0m0.180s
sys 0m0.010s
And using a tmpfs is equally fast:
root@raspberrypi:~# mkdir /tmp/test
root@raspberrypi:~# mount -t tmpfs -o size=20m tmpfs /tmp/test
root@raspberrypi:~# cp hello.py /tmp/test/
root@raspberrypi:~# time python /tmp/test/hello.py
Hello, World!
real 0m0.205s
user 0m0.180s
sys 0m0.020s
However, bash is WAY faster:
root@raspberrypi:~# echo 'echo "Hello, World!"' > hello.sh
root@raspberrypi:~# time bash hello.sh
Hello, World!
real 0m0.021s
user 0m0.000s
sys 0m0.010s
Regards,
Tyler
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