comment on

Yes, these things are always quite tricky to predict.

So many things may influence it: buffer-size, cache-effects, other processes stealing the disk-controller from your script or pushing your script out to disk, ...

Trial & Error is probably the only way to go.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re^4: use regular expressions across multiple lines from a very large input file by CountZero
in thread use regular expressions across multiple lines from a very large input file by rizzy

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