yah

issues with perf mem record

Discussion created by yah on Aug 30, 2018
Latest reply on Aug 31, 2018 by abucodonosor

hi,

 

does anyone have any idea why 'perf mem record' is not working on a 24core, 2.3GHz AMD 7451 EPYC CPUs?  we getting the error 'failed: memory events not supported'. We are using Centos 7.4, kernel 3.10.0-693.el7.x86_64, with this version of perf: perf-3.10.0-693.21.1.el7.x86_64. We are trying to find the performance of the LLC , L2 caches and memory accesses.

 

thanks,

 

yah

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