CineGrid

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Revision as of 11:10, 14 June 2007 by Jschulze (Talk | contribs)

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Team members: Jurgen Schulze, Shaofeng (Leo) Liu

Copying large files over multi-gigabit networks

  • Optimize network settings:
 Change maximum UDP buffer size (read and write) on sender and receiver:
 edit /proc/sys/net/core/rmem_max and /proc/sys/net/core/wmem_max
 The number in the files determines the buffer size in bytes. 
 We suggest the size to be 16MB (=16777216 bytes) for each of the buffers, which is the maximum allowed size.


  • The following commands are called from the directory udt3.3/app/
  • Run the sender:
 ./sendfile
  • Run the receiver:
 Syntax: ./recvfile <IP address/hostname of sender> <port number> <remote source file name> <local destination file name>
 Example: ./recvfile 127.0.0.1 9000 /home/jschulze/data/largefile.tif ./temp.tif

Streaming high resolution video over multi-gigabit networks