Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.

Intel® Memory Latency Checker v2 with buffer option

zeuch__Steffen
Beginner
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Hello,

the documentation of the Intel Memory Latency Checker states that with the option -bXXX you can specify the buffer size. For example to measure caches instead of DRAM. But this option will not considered for execution. The print message "Using buffer size of" as well as the measures values indicate that it not works. For example mlc --idle_latency –b3000 –c0 –t3 out of the documentation will not work. Is there a workaround?

 

Kind regards,
Steffen

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Thomas_W_Intel
Employee
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Steffen,

the minus in front of the "b" looks different than the minus in front of the "idle_latency" or the "v". Might this be some artifact of copy-and-paste that screwed up your command line? In other words, is the character before the "b3000" really a minus sign?

Kind regards

Thomas 

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Krishnaswa_V_Intel
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That should work and I can't reproduce the problem. Can you please send a screen shot of the output

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zeuch__Steffen
Beginner
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Hello please find attached the screenshot. The message says: Using buffer size of 200.000MB instead of the specified 3 MB (-b3000)

 

Thanks,

Steffen

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Thomas_W_Intel
Employee
980 Views

Steffen,

the minus in front of the "b" looks different than the minus in front of the "idle_latency" or the "v". Might this be some artifact of copy-and-paste that screwed up your command line? In other words, is the character before the "b3000" really a minus sign?

Kind regards

Thomas 

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zeuch__Steffen
Beginner
979 Views

Hi ok thanks very much the wrong sign was the problem. 

Thanks

Steffen

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