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4h
2010 Aug 20
0
awful i/o performance on xen paravirtualized guest
...0.00 0.00 0.00 82.00 0.00 856.00 20.88
1.00 12.05 12.24 100.40
a DB import takes almost 10 times longer than in the bare-metal server, even if
the server I'm planing to virtualize is 4 years old and the guest is a brand new
DL380 from HP. In the old server takes 4hs, in the new one takes 2 days. That's
not surprising given the fact that the disk shows a peak throughput below 2Mb/s
here's the vm config file:
[root at xen2 xen]# cat vm-dbweb
name = "vm-dbweb"
uuid = "8560e33a-865e-cca5-725d-817de4972422"
maxmem = 7168
memory = 71...