Late in response since I was off from work for a while. Thanks guys for your input. I have used the crashingdaily's advice and it seems to work.
But as far as speed of this module go, even after installing the Math::BigInt::GMP there is no impact on the speed. For my setup it is taking 90 minutes for a 130 MB file compare to 10 minutes from commandline. When I see on my linux box I have both GMP modules installed
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi/Math/GMP.pm
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi/Math/BigInt/GMP.pm
Do I need to uninstall the Math::GMP and then install Math::BigInt::GMP? I am wondering which GMP is used by Net::SFTP module. Thx.

In reply to Re^2: Net:sftp module is slow and hangs by rajeev
in thread Net:sftp module is slow and hangs by rajeev

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