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Jonghak_K_Intel
Employee
51 Views

Memory bandwidth metric support for Xeon E3 family?

Hi, 

 There is a customer using E3 servers and curious about the support for bandwidth metric collection of E3 series. Does VTune XE have a plan to support this? or is it not going to happen because of E3's hardware matter? 

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4 Replies
Peter_W_Intel
Employee
51 Views

I wonder that E3 processor is SandyBridge architecture, VTune(TM) Amplifier XE 2015 already supports bandwidth analysis, that is,

# amplxe-cl -collect-list | grep bandwidth
bandwidth                       Bandwidth
core2-bandwidth-breakdown       Bandwidth Breakdown - Intel Core 2 Processor Family
wsmex-read-bandwidth            Read Bandwidth - Nehalem / Westmere
wsmex-write-bandwidth           Write Bandwidth - Nehalem / Westmere

What is your processor type in detail?

Jonghak_K_Intel
Employee
51 Views

Hi Peter,

 thanks for your comment,

 The customer's using Haswell. I was missing some details sorry. They want to measure PCIe bandwidth. Does VTune XE 2015 support this also?

Thanks!

Peter_W_Intel
Employee
51 Views

Haswell can be supported on memory bandwidth analysis.   

I don't know your meanings of "PCIe bandwidth" in general, I remember that Intel(R) Xeon(TM)  Phi coprocessor use PCIe for data transferring - but VTune Amplifier XE doesn't profile this bandwidth, VTune can profile data read/write on Intel Xeon Phi.

VTune Amplifier XE only collects performance data On-core or Uncore.  

David_A_Intel1
Employee
51 Views

VTune Amplifier does not measure PCIe bandwidth, only memory bandwidth to/from the processor.