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jy7805heo
Beginner
666 Views

someone knows intel ioat(CBDMA) driver performance?

Hello, 

 

I want to use intel CBDMA driver for a memcpy from system memory to MMIO region. 

Speaking of xilinx, they have their pcie dma throghput/performance numbers I can see like below. 

 

https://protect2.fireeye.com/v1/url?k=47261063-18bd297b-47279b2c-0cc47a314e9a-3102acb289223caa&q=1&e...

 

If someone knows where document about intel ioat DMA driver performance is, please let me know. Thanks. 

 

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16 Replies
DeividA_Intel
Moderator
633 Views

Hello jy7805heo,  

  


Thank you for posting on the Intel® communities.   

  


In order to better assist you, please provide the following:  



1. Model name of the CPU that you are using.


2. Are you using a laptop or a desktop computer?


3. Are you using any other Intel product? If so, can you provide the model name? 



  


Regards,    


Deivid A. 

Intel Customer Support Technician 


jy7805heo
Beginner
624 Views

Hello Deivid, thank you for the response. I'm using dell T640 as a server. 

 

Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 56
On-line CPU(s) list: 0-55
Thread(s) per core: 1
Core(s) per socket: 28
Socket(s): 2
NUMA node(s): 4
Vendor ID: GenuineIntel
CPU family: 6
Model: 85
Model name: Intel(R) Xeon(R) Gold 6258R CPU @ 2.70GHz
Stepping: 7
CPU MHz: 2700.000
BogoMIPS: 5400.00
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
L3 cache: 39424K
NUMA node0 CPU(s): 0,4,8,12,16,20,24,28,32,36,40,44,48,52
NUMA node1 CPU(s): 1,5,9,13,17,21,25,29,33,37,41,45,49,53
NUMA node2 CPU(s): 2,6,10,14,18,22,26,30,34,38,42,46,50,54
NUMA node3 CPU(s): 3,7,11,15,19,23,27,31,35,39,43,47,51,55
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm arat pln pts pku ospke avx512_vnni md_clear flush_l1d arch_capabilities

 

 

 

 

DeividA_Intel
Moderator
609 Views

Hello jy7805heo,  

  


Thanks for the information provided, 


  


Based on your hardware, I would like to inform you that we have a forum for these specific issues and products, so we are moving it to the "Hardware Products, Server Products" forum so you can get better support for this matter.  


- https://community.intel.com/t5/Server-Products/bd-p/server-products


  


Regards,   


Deivid A.  

Intel Customer Support Technician  


JoseH_Intel
Moderator
600 Views

Hello jy7805heo,


Thank you for joining the community


I am from the servers department. I think this white paper could be useful:

White Paper: Accelerating High-Speed Networking with Intel® I/OAT

Take into consideration that more specific info might require a Corporate Non-Disclosure Agreement between your company and Intel.


Hope it helps


Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios


jy7805heo
Beginner
593 Views

Thank you, JoseH, but I've already read it and it seems old article. (2006)

Could I consider that performance numbers as latest ? 

 

JoseH_Intel
Moderator
588 Views

Hello jy7805heo,


You are correct. This paper is a bit outdated. Let me try to get something more recent. I will get back to you soon.


Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios


SergioS_Intel
Moderator
383 Views

Hello jy7805heo,


Thank you for waiting for our updates, can you please let us know the operating system that you are running?


We will be looking forward to your updates. 


Best regards,

Sergio S.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit :https://intel.com/support/serverbios


lEdge
New Contributor I
376 Views

@jy7805heo 

I know it's difficult to find what you may be looking for. At least make a reasonable start to a topic for valid information.

And again you are not even looking in the right place. Thanks for that other link;


@jy7805heo wrote:

Hello, 

 

I want to use intel CBDMA driver for a memcpy from system memory to MMIO region. 

Speaking of xilinx, they have their pcie dma throghput/performance numbers I can see like below. 

 

https://protect2.fireeye.com/v1/url?k=47261063-18bd297b-47279b2c-0cc47a314e9a-3102acb289223caa&q=1&e...

 

If someone knows where document about intel ioat DMA driver performance is, please let me know. Thanks. 

 


https://software.intel.com/content/www/us/en/develop/articles/fast-memcpy-using-spdk-and-ioat-dma-en... 

JoseH_Intel
Moderator
345 Views

Hello jy7805heo,


We are still waiting for the OS version that your system is currently running. I will try to reach you by the last time on next Thursday 7th. After that the thread will be archived automatically.


Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios


jy7805heo
Beginner
340 Views

 Operating System: Ubuntu 18.04.5 LTS
Kernel: Linux 5.4.78+
Architecture: x86-64

 

Thanks !

SergioS_Intel
Moderator
305 Views

Hello jy7805heo,


We appreciate the additional information


Can you please let us know if there is a specific driver (Linux kernel, DPDK, SPDK) that you are interested in or just information on what the Xeon processor hardware is capable of?


DPDK is Data Plane Development Kit (dpdk.org).


SPDK is Storage Performance Development Kit (spdk.io , https://software.intel.com/content/www/us/en/develop/articles/introduction-to-the-storage-performanc...)


We will be looking forward to your updates.


Best regards,

Sergio S.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit :https://intel.com/support/serverbios


jy7805heo
Beginner
253 Views

Hello SergioS,

 

https://doc.dpdk.org/guides/rawdevs/ioat.html

We're using DPDK and we've followed above guide. (vfio-pci)

Thanks !

JoseH_Intel
Moderator
241 Views

Hello jy7805heo,


Thank you for the info. Just to recap on the thread, you are using the DPDK, following this guide https://doc.dpdk.org/guides/rawdevs/ioat.html and need the Intel I/OAT DMA driver as one of the steps from the guide. Am I correct? If not please let me know


Regards


Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios


jy7805heo
Beginner
231 Views

Hello JoesH, 

You are correct, and the I/OAT DMA driver is working fine at my end. The one I want to get is an INTEL official performance result of an I/OAT driver. (if you have)

JoseH_Intel
Moderator
208 Views

Hello jy7805heo,

 

Thank you very much for the confirmation. Let me try to get such performance result for you (if available). I will get back to you soon.

 

Regards

 

Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios

 

JoseH_Intel
Moderator
129 Views

Hello jy7805heo,

 

We regret to inform you that we don't have such a document containing performance data of the I/OAT drive.

We have NDA documentation for CBDMA performance for memory to MMIO/PCIe transfers.

This shows the performance capabilities of the CBDMA HW engine itself.


Do you strictly require this specific information?

 

Regards

 

Jose A.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit:

https://intel.com/support/serverbios


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