Re: new Power9, going from 1G to 10G Enet...

Diego,
Where are you getting that fact from? 10Gb throughput has overhead. But I
haven't seen how a 10Gb link can consume additional CPU compared to the 1Gb
one.
That's comparing SEA to SEA. SR-IOV, vNIC or other technologies might have
overhead but related to the virtualization itself...


On Fri, Dec 28, 2018 at 11:03 AM Diego Kesselman <diegokesselman@xxxxxxxxx>
wrote:

Remember: 10Gb puts some CPU overhead. Sometimes 1Gb x N adapters is better
(+ CHGTCPA with 1 MB Send/Receive Buffer)

El vie., 28 de dic. de 2018 05:36, Jim Oberholtzer <
midrangel@xxxxxxxxxxxxxxxxx> escribió:

This is where Navigator is your real friend. You can simply bring up a
graph and see how much Ethernet you are using. I'll bet it's 15% or
below. Most folks way over estimate how much the line is doing.


--
Jim Oberholtzer
Agile Technology Architects

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> On Behalf Of Joe

Pluta

Sent: Thursday, December 27, 2018 11:30 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: new Power9, going from 1G to 10G Enet...

No, only theoretical calculation (moving x GB over z minutes). We've
gotten rid of most of those requirements. Now our only pipe issue is
offsite HA replication.


On 12/27/2018 9:07 PM, Rob Berendt wrote:

Have you actually measured that and found that the ethernet line was
nearing 100% utilization?


Rob Berendt

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