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Old 01-24-2014, 05:37 AM   #1
jayadhanesh
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Registered: Feb 2009
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rsync is slow


Hi,

I created two virtual machines on Xen and connected them through linux bridge, using brctl. I am trying to do rsync, file size: 188M between vms and this is slow of the
interface and bridge mtu is 4096 bytes. If I reduce the mtu to 1500, rsync for the same file happens in 5 mins. Why is a decrease in mtu increasing the transfer speed?

Thanks,
--D
 
Old 01-24-2014, 05:49 AM   #2
druuna
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Short answer: smaller packets will be transmitted faster, simply because of the throughput limitation of the line.

Here are the ins and outs: MTU, what difference does it make?
 
  


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