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I don't know anything about the security aspect of it, but I was curious about which one was faster, so I ran a benchmark...

Copying about 1.5MB:

Benchmark: running File::Copy::cp($a, $b), system('cp', $a, $b) for at + least 3 CPU seconds... File::Copy::cp($a, $b): 4 wallclock secs ( 0.17 usr + 3.18 sys = 3. +35 CPU) @ 339.70/s (n=1138) system('cp', $a, $b): 29 wallclock secs ( 0.13 usr 3.21 sys + 1.43 c +usr 24.26 csys = 29.03 CPU) @ 965.27/s (n=3224)

I'd like to admit that I don't quite know how to parse the results. It looks like the system command incurs a 1.43 cusr and 24.26 csys penalty--what is that?

In reply to Re: File::Copy or system by Riales
in thread File::Copy or system by Anonymous Monk

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