Fellow monks,
I am processing some large file and would like to have a simple statistic about lines processed per second.

Example output:
Processing stated at $start_time\n
Processed $lines lines ($speed lines/second)\r <- this one!

[download]

What should I use? I was thinking about emiting SIGALARM every second and counting the difference between current and last interrupt line counters.
Any suggestions would be welcome.

In reply to Live operations-per-second counter by acidmax

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