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A comment on The State of ZFS on Linux. Parent comment

Re:The State of ZFS on Linux by blumentopf on Thursday September 11, 2014 @12:12PM (#8303418)
You need to tell the kernel if you need larger-than-default SO_SNDBUF/SO_RCVBUF, e.g. for 4 MByte (default is 128 kByte):

  sysctl -w net.core.rmem_max=4194304
  sysctl -w net.core.wmem_max=4194304
Documentation: http://git.kernel.org/cgit/linux/kernel/git/stable/linux-sta...
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Re:The State of ZFS on Linux by DiabloD3 on Thursday September 11, 2014 @12:41PM (#8303592)
The default seems to be 128kb for both, and that seems to be enough. It is already bigger than the buffers on most NIC.
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