Ethernet performance between WhiteBox SDK 5.1 and SDK3.16.2

Question

Hi Team, 
 I'm test my S4 board and Marvell PHY Q3244. 
 
 My test topology: 
 S4 board-A with Q3244 <---T1-cable---> S4 board-B with Q3244 
 
 When using WhiteBox SDK 5.1, bitrate get max around 1.5x Gbits/sec. But using SDK 3.16.2 can reach 2.1x Gbits/sec. 
 Is there any limit for the WhiteBox SDK? 
 Can you help to confirm the throughput using 2.5Gbps Ethernet PHY board for R-Car S4 spider with WhiteBox SDK 5.1? 
 
 Test result for your reference 
 [Using WhitBox SDK 5.1]

Y.H. [Renesas] · Accepted Answer

Hello Willh, 
 
 Is there any limit for the WhiteBox SDK? 
 
 As of now, Whitebox SDK doesn't support 2.5 Gbps ethernet board. So, your environment has unknown patch for supporting 2.5Gbps board. If I understand correctly, that patch is not published in public such as github/elinux/etc. so that we cannot support you about this topic here. 
 But, I have some advices to you. 
 1. Xen hypervisor BSP version Whitebox SDK is based on Xen Hypervisor BSP which version v0.8.5 with backported patch from v1.0. So, it's better to test latest Xen Hypervisor BSP v3.16.2 with your patch. If Xen hypervisor has same performance issue, it may be not specific issue for Whitebox SDK. And, if there is no issue with latest Xen Hypervisor BSP, I think you need to update Xen hypervisor BSP version of Whitebox SDK or backport required patch. 
 2. Unused service Whitebox SDK has many application and some application uses network. it's possible to cause performance down by some application. So, I recommned to stop unused service before testing. 
 I hope your problem is resolved.

Ethernet performance between WhiteBox SDK 5.1 and SDK3.16.2

Top Replies