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2013 Apr 04
1
Freenas domU network performance issue
...er stack)
The bench result highly depends on TSO / LRO config.
dom0 => nas (LRO=1) 60Mbps ~ 300Mbps (vary a lot time to time, xentop
reports low cpu usage in both domain (varies corresponding to BPS, ~ 20%)).
dom0 => nas (LRO=0) 10900Mbps (stable, high cpu usage ~190%)
nas => dom0 (TSO=1) 470Mbps (stable result, low cpu usage ~40%)
nas => dom0 (TSO=0) 860Mbps (stable result, high cpu usage ~170%. some
times can stable at ~2000Mbps, not sure how to reproduce)
Similar result can be observed when talking to another linux domU. However,
linux domU can generally achieve better performance t...