Intel® Academic Community Forum

Precise measurement of LLC misses

Hello,

in order to optimize a hard real-time application, I am characterizing the LLC miss rate of small portions of code.

To have the needed priority and have control over resources, the application runs in Linux kernel space. This also allows me to directly read performance counters, and in particular the LLC miss rate of my processor (Xeon E5 1410, Sandy Bridge family). Though I am aware that Linux, Xeon processors and big LLCs are not well suited to hard real-time applications, for performance (and budget) reasons, I have to use what I currently have on the ground...

Addressing in protected mode ?

For a long time I could not understand how to read the table GDT in protected mode processor with a segment-page conversion? For memory addresses should be considered as diskriptor local table from memory, so that's reading too passes through page conversion? Or is it bypasses page conversion, by direct memory access?

Intel Core i7 Cache

Hello im a student and this semester i have Computer Architecture .Proffesor told us to make a presentation about Core i7and to foucs how Cache works and its details.Can someone send me some specifications of Cache in Nehalem or other architectures.
Thank you.

Intel Core i7 Cache

Hello im a student and this semester i have Computer Architecture .Proffesor told us to make a presentation about Core i7and to foucs how Cache works and its details.Can someone send me some specifications of Cache in Nehalem or other architectures.
Thank you.

Xeon E5 v3 Cluster on die technology

I am currently investigating how to enhance performance isolation and predictability on the latest Intel platforms, in particular on Xeon E5 v3 (Haswell).

To this aim, I am envisioning to exploit the Cluster-on-die mechanism, but I have some questions.

 

1) on multiple internet sources I read that it is available only in models with 10 or more cores, since they arrange cores and LLC slices on two ring buses, each one with a System Agent. Can someone confirm this?

 

Hardware Performance Counters

Hi,

   I am new to this forum and I want to know about the Hardware performance counters in detail.My system has Xeon processor (X7350).Currently I am focusing on power related performance events but I don't know which one are power related. So let me know where I can find the detailed architecture of Xeon processor and basics of Hardware performance counters related to the corresponding architecture.

  Thanks in advance.

i7 5960x

Hi I have an I7 5960x CPU and I will use it for real time visualization of data and etc. I was wondering if there is any particular graphic card you would suggest me to use with it, again considering that my need is for really fast visualization rather then high quality visualization(i.e. gaming purpose). Thank you

 

 

 

 

Subscribe to Intel® Academic Community Forum