netdev - [i40e] regression on TCP stream and TCP maerts, kernel-4.12.0-0.rc2

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Date:   Tue, 30 May 2017 15:43:53 +0200
From:   Adam Okuliar <aokuliar@...hat.com>
To:     netdev@...r.kernel.org, Adrian Tomasov <atomasov@...hat.com>,
        jeffrey.t.kirsher@...el.com
Cc:     Otto Sabart <osabart@...hat.com>, jhladky@...hat.com
Subject: [i40e] regression on TCP stream and TCP maerts, kernel-4.12.0-0.rc2

Hello,

we found regression on intel card(XL710) with i40e driver. Regression is 
about ~45%
on TCP_STREAM and TCP_MAERTS test for IPv4 and IPv6. Regression was first
visible in kernel-4.12.0-0.rc1.

More details about results you can see in uploaded images in bugzilla. [0]

[0] https://bugzilla.kernel.org/show_bug.cgi?id=195923

Best regards, / S pozdravom,

Adrián Tomašov
Kernel Performance QE
atomasov@...hat.com