Re: flashcache

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On Jan 17, 2013, at 11:01 AM, Gandalf Corvotempesta <gandalf.corvotempesta@xxxxxxxxx> wrote:

> 2013/1/17 Atchley, Scott <atchleyes@xxxxxxxx>:
>> 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.

Scott--
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