Linode: Should I migrate from Xen to KVM (Worse Stream Performance)

Answer: I don't know...
I got worse single thread performance after migration.

11341 MB/s --> 9594 MB/s

Linode "Xen" Node "Stream" Performance @ 2015/06/25

代碼:


-------------------------------------------------------------
Function      Rate (MB/s)   Avg time     Min time     Max time
Copy:        9321.3229       0.0037       0.0034       0.0041
Scale:      10873.1147       0.0030       0.0029       0.0032
Add:        10695.2078       0.0047       0.0045       0.0049
Triad:      11341.7042       0.0045       0.0042       0.0047
-------------------------------------------------------------

Linode "KVM" Node "Stream" Performance @ 2015/06/25

代碼:


-------------------------------------------------------------
Function      Rate (MB/s)   Avg time     Min time     Max time
Copy:        8672.0765       0.0038       0.0037       0.0040
Scale:       9846.5063       0.0033       0.0032       0.0033
Add:         9579.2260       0.0051       0.0050       0.0053
Triad:       9594.2905       0.0051       0.0050       0.0051
-------------------------------------------------------------

Type(Type) 2015/6/26 09:16

The linode team migrated my KVM node to another host, much better

Linode "KVM" New Node "Stream" Performance @ 2015/06/26, 2nd Migration

The linode team migrated my KVM node to another host, much better!
The ping-response time reduced 10ms as well! (why?)

Anyway, it looks to be equivalent to (or a little better compared to)
original Xen VM host. Thanks.

代碼:


Function      Rate (MB/s)   Avg time     Min time     Max time
Copy:        9629.6261       0.0034       0.0033       0.0035
Scale:      11208.1610       0.0029       0.0029       0.0029
Add:        11890.3019       0.0041       0.0040       0.0042
Triad:      11524.7920       0.0042       0.0042       0.0044

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