Initial newstore vs filestore results

[Mark Nelson <mnelson@redhat.com>]

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Hi Guys,

I ran some quick tests on Sage's newstore branch.  So far given that 
this is a prototype, things are looking pretty good imho.  The 4MB 
object rados bench read/write and small read performance looks 
especially good.  Keep in mind that this is not using the SSD journals 
in any way, so 640MB/s sequential writes is actually really good 
compared to filestore without SSD journals.

small write performance appears to be fairly bad, especially in the RBD 
case where it's small writes to larger objects.  I'm going to sit down 
and see if I can figure out what's going on.  It's bad enough that I 
suspect there's just something odd going on.

Mark

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