Hi,

Am 17.01.2013 17:12, schrieb Atchley, Scott:
On Jan 17, 2013, at 11:01 AM, Gandalf Corvotempesta 
<gandalf.corvotempe...@gmail.com> wrote:

2013/1/17 Atchley, Scott <atchle...@ornl.gov>:
Yes. It should get close to 1 GB/s where 1GbE is limited to about 125 MB/s. 
Lower latency? Probably since most Ethernet drivers set interrupt coalescing by 
default. Intel e1000 driver, for example, have a cluster mode that reduces (or 
turns off) interrupt coalescing. I don't know if ceph is latency sensitive or 
not.

Sorry, I meant 10GbE.

10GbE should get close to 1.2 GB/s compared to 1 GB/s for IB SDR. Latency again 
depends on the Ethernet driver.

We're using bonded active/active 2x10GbE with Intel ixgbe and i'm able to get 2.3GB/s.

Not sure how to measure latency effectively.

Stefan
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