Something must be wrong with the conduit "NoHandle" code. I increased the filesize to 60MB and implemented the copy loop in pure C, the code and results are here:

https://gist.github.com/gregorycollins/5115491

Everything but the conduit NoHandle code runs in roughly 600-620ms, including the pure C version.

G

On Fri, Mar 8, 2013 at 10:13 AM, Alexander Kjeldaas <alexander.kjeldaas@gmail.com> wrote:

On Fri, Mar 8, 2013 at 9:53 AM, Gregory Collins <greg@gregorycollins.net> wrote:

On Fri, Mar 8, 2013 at 9:48 AM, John Lato <jwlato@gmail.com> wrote:

For comparison, on my system I get 

$ time cp input.dat output.dat 

real 0m0.004s

user 0m0.000s

sys 0m0.000s

Does your workstation have an SSD? Michael's using a spinning disk.

If you're only copying a GB or so, it should only be memory traffic.

Alexander

 

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Gregory Collins <greg@gregorycollins.net>

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