I have a couple of iscsi links running on 1G and not in your range of hw
and demand at all.
I ran an ISP for about 20 years and got bitten by the BDP a number of
times now so when someone describes the problem I know what to look for.
On 08/26/2014 04:05 PM, Learner wrote:
How many iscsi and underlying top sessions are u using? If multiple, pls check
if all to sessions are being used.
Btw, what tuning did u perform to fix Tcp BDP issue?
Thanks
Sent from my iPhone
On Aug 26, 2014, at 12:53 PM, "Mark Lehrer" <m...@knm.org> wrote:
On Tue, 26 Aug 2014 08:58:46 -0400 Alvin Starr <al...@iplink.net> wrote:
I am trying to achieve10Gbps in my single initiator/single target
env. (open-iscsi and IET)
On a semi-related note, are there any good guides out there to
tuning Linux for maximum single-socket performance? On my 40 gigabit
You are likely getting hit by the bandwidth-delay product.
Take a look at http://en.wikipedia.org/wiki/Bandwidth-delay_product
and http://www.kehlet.cx/articles/99.html
Thanks that helped get my netcat transfer up over 500MB/sec using IPoIB.
Unfortunately that is still only about 10% of the available bandwidth.
I'll keep on tweaking and see how far I can take it.
Thanks,
Mark
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