Obtaining the size of a file

[John Craig]

For only 1 folder containing 34,782 files on MY machine (3GHz, 512Mb 
RAM) which is not running any services.

Time taken to get 'the detailed files';
26888 millisecs = 26.888 seconds

Size of output generated by rev for 'the detailed files';
2543957 bytes = 2.5Mb

On a busy server, the results could be considerably greater.  The fact 
that it amounts to just under 0.8 millisecs per file is irrelevant - If 
I need a few (or a few hundred) file sizes, I still need to wait for the 
entire output to be generated.  Economical?




Richard Gaskin wrote:
> Turns out my test wasn't all that useful, since the OS has a bit of a 
> bottleneck grabbing the info from 12,000+ files in a single directory.
>
> Running the same test on a folder that has only a few hundred files 
> gives a per-file speed more on par with what we might expect:
>
> # File: 329  Total: 9ms  Per file: 0.027356ms
>
> MacBook Pro, 2.16 GHz, 2MB RAM
>