With perl 5.8.9 on Linux, replacing the calls to Win32::Sleep by calls to Time::HiRes::nanosleep, I get the expected count of 5000.

Probably, that 3 extra sentences are from some callback run from Win32::Sleep the first time it is called. Maybe you could use Devel::Trace or single step through the debugger to see what's going on.

In reply to Re^16: "Automated" benchmarking by salva
in thread "Automated" benchmarking by DreamT

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