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Subject: [Bug 202199] packet forwarding in xen becomes slow
Date: Mon, 10 Aug 2015 15:57:12 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202199

--- Comment #4 from Andrei <andrei@fazik.net.ua> ---
(In reply to Sydney Meyer from comment #2)
I've checked and behavior looks very similar to
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197344
After disabling tx perfomance increased but when target server is far away from
FreeBSD box then degradation is the same.
For example if I will try to fetch something that is near to DC where guest
system is than all is fine and speed is great  but if I will try to access thru
vpn something that is in Asia(for example) the speed is really low.
Maybe tcp window somehow cutted and as a result I have low speed on big
distances.
P.S. Sorry for my English)

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