CODEWITHSUNDEEP
sshscp
syko
syko

Reputation: 3637

How to avoid ssh connection overheads in scp?

I am testing the performance of scp command. I want to minimize the overheads for making TCP connection of ssh protocol inside scp.

How can I open the first ssh connection and reuse it over time?

thanks for your help.

// I should have said that one way to achieve it is to zip the files and send it at once, which only works when the files are available all the time. Let's assume then the files are generated in stream fashion in the source side, and I want to send those as early as possible after they are generated.

// Pleaser refer to the link for the answer I found: (How To Reuse SSH Connection To Speed Up Remote Login Process) http://www.cyberciti.biz/faq/linux-unix-reuse-openssh-connection/

Upvotes: 0

Views: 623

Answers (1)

Nick Veys
Nick Veys

Reputation: 23949

If you are copying so many tiny files that the connection overhead comes into play, you could try tar'ing everything up on the fly and sending that instead.

Try something like this:

tar zcvf - data | ssh user@server "cat > data.tar.gz"

You can drop the z if compression isn't desired/helpful too.

Upvotes: 1

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