Public bug reported:
Running Xen 3.1 on gutsy, I have extreme network performance problems with the
domUs, tested in routed and bridged setup.
When downloading from the domU (e.g. via http), I get only 40 kB on a 100MBit
link.
I see "DUP Ack", "Retransmission" and "Previous segment lost" in wireshark.
When the domU downloads something itself, it's wirespeed at 8 MB/s. I have
never seen this problem with a kernel from xensource.
Debugging seems very hard, but if I can help somehow, please let me know.
** Affects: linux-source-2.6.22 (Ubuntu)
Importance: Undecided
Status: New
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Heavy network performance problem
https://bugs.launchpad.net/bugs/177512
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