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X540-T1 driver performance issues.

Emjayen
Beginner
1,186 Views

Under moderate rx packet rates (~10Mpps) there's significant performance issues with the driver's WPP trace logging, presumably on the data-path for some reason. 

 

Emjayen_0-1697270215824.png

 

I'm quite confident it's indeed the driver actually invoking this, given other cards (e.g, Mellanox) at far higher packet rates do not exhibit this behavior.


Attached is the SUS output which appears to be standard here.

 

Thanks,

Matt.

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6 Replies
Faez_Intel
Employee
1,084 Views

Hi Matt,


Good day and thanks for posting in the Intel Community Support.


May I know was there any changes made to the NIC prior to this performance issues?


Please ensure if you have set the autonegotiation on the network adapter, the switch should be in autonegotiation mode. Do the same if you set the network adapter to 1000 mbps, the switch should be in 1000 mbps.


Looking forward to hear from you.


Thanks,

Faez_Intel


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Emjayen
Beginner
1,068 Views

Hi Faez,


This is an issue related to driver implementation. It'll need to be looked into by an engineer/developer of the driver software.

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IntelSupport
Community Manager
1,052 Views

Hello Emjayen ,


Thank you for the response.


We are currently in the process of reviewing the information you have provided, and we will promptly update you once we have the necessary details. We kindly request your cooperation during this time.


Best Regards,


Sreelakshmi B


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Faez_Intel
Employee
938 Views

Hello Emjayen,


Good day.


May I know if you are using the latest drivers for the NIC? Also, may I know if you are using the Intel generic drivers or if this is from an OEM NIC?


Thanks,

Faez_Intel


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Emjayen
Beginner
934 Views

Hi Faez,

 

Yes, these are the latest drivers according to the ISM software (and a manual check). They are generic drivers; this is an add-on card.

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Emjayen
Beginner
648 Views

Any follow-up to this issue?

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