On 7/20/2015 12:44 PM, Sagi Grimberg wrote:
On 7/20/2015 12:43 AM, Or Gerlitz wrote:
On Sun, Jul 19, 2015 at 7:07 PM, Sagi Grimberg
<[email protected]> wrote:
On 7/16/2015 6:25 PM, Bart Van Assche wrote:
I agree it would definitely help as the lack of immediate data
emphasizes the additional latency of doing rdma reads.
Sagi, do we have black box evidence from iSER showing notable
(results? setup?) IO latency improvement from using immediate data vs.
RDMA read?
I've seen it. The LIO target has a better write performance due to
ImmediateData.
Numberz, please...
Also, do you see any gain with TGT too? if not, what's you thinking re
the LIO vs TGT difference?
I also have a patch in the pipe that optimize the this flow at the
target side which improves up to 40% for 512B-8K IOs.
So you have 140% better IOPS with immediate-data vs. non immediate
data?! numberz?
Or.
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