Can I get a faster output pipe than /dev/null?
I am running a huge task [automated translation scripted with perl + database etc.] to run for about 2 weeks non-stop. While thinking how to speed it up I saw that the translator outputs everything (all translated sentences, all info on the way) to STDOUT all the time. This makes it work visibly slower when I get the output on the console.
I obviously piped the output to /dev/null, but then I thought "could there be something even faster?" It's so much output that it'd really make a difference.
And that's the question I'm asking You, because as far as I know there is nothing faster... (But I'm far from being a guru having used linux on a daily basis only last 3 years)
Answer
Output to /dev/null is implemented in the kernel, which is pretty bloody fast. The output pipe isn't your problem now, it's the time it takes to build the strings that are getting sent to /dev/null. I would recommend you go through the program and comment out (or guard with if $be_verbose) all the lines that are useless print statements. I'm pretty sure that'll give you a noticeable speedup.