topic Measuring memory bandwidth through IntelPerformanceCounterMonitorV2.8 in Software Tuning, Performance Optimization & Platform Monitoring

Measuring memory bandwidth through IntelPerformanceCounterMonitorV2.8

Jeongseob_A_ — Thu, 30 Apr 2015 06:21:21 GMT

Hi all,

Currently, I have tried to measure the memory bandwidth per core. Fortunately, I saw the article (https://software.intel.com/en-us/articles/monitoring-integrated-memory-controller-requests-in-the-2nd-3rd-and-4th-generation-intel). So, I tested measuring memory bandwidth by using pcm-memory.x in my Linux system(Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz). However, the program produces the error like below.

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Detected Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz "Intel(r) microarchitecture codename Haswell"
Jaketown, Ivytown or Haswell Server CPU is required for this tool!
For processor-level memory bandwidth statistics please use pcm.x

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I also tried to use pcm.x, but the READ and WRITE field do not show any data. It just prints N/A. Could you help me solve this problem?

Thanks

Intel PCM measures the memory

Thomas_W_Intel — Thu, 30 Apr 2015 09:02:41 GMT

Intel PCM measures the memory bandwidth directly in the memory controller. It is therefore unfortunately not possible to tie this information back to the core. in particular, pcm-memory won't provide you this information either. The main advantage of pcm-memory is that it reports the memory traffic per memory channel.

Thank you for the reply.

Jeongseob_A_ — Thu, 30 Apr 2015 14:54:24 GMT

Thank you for the reply.

0 0 0.01 0.67 0.01 0.31 78 K 202 K 0.61 0.26 0.32 0.11 N/A N/A N/A 68
1 0 0.03 1.35 0.02 0.37 103 K 222 K 0.53 0.35 0.33 0.08 N/A N/A N/A 72
2 0 0.00 0.33 0.01 0.33 48 K 135 K 0.64 0.22 0.38 0.16 N/A N/A N/A 71
3 0 0.01 0.48 0.01 0.35 126 K 246 K 0.49 0.22 0.65 0.14 N/A N/A N/A 69
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SKT 0 0.01 0.82 0.01 0.34 357 K 807 K 0.56 0.27 0.41 0.11 0.89 0.08 0.79 67

When I run the pcm.x program, there are read and write fields per core like above. So, I just considered the information will be provided. Anyway, thanks very much.