topic Likely your new kernel doesn in Software Tuning, Performance Optimization & Platform Monitoring

why offcore is not support?

Ying_W_ — Wed, 03 May 2017 01:01:29 GMT

I use emu-tools to monitor-performance and it is use normal. After the system breakdown, I reinstall the system and the perf is not support offcore any more. as shown below. So what problems may be I have encountered?

failed to read counter offcore_response_demand_code_rd_llc_miss_remote_dram
failed to read counter offcore_response_demand_rfo_llc_miss_remote_dram
failed to read counter offcore_response_demand_data_rd_llc_miss_remote_dram
# time core cpus counts unit events
0.100098644 S0-C0 1 <not supported> offcore_response_demand_code_rd_llc_miss_remote_dram
0.100098644 S0-C0 1 <not supported> offcore_response_demand_rfo_llc_miss_remote_dram
0.100098644 S0-C0 1 <not supported> offcore_response_demand_data_rd_llc_miss_remote_dram

Likely your new kernel doesn

Andreas_K_Intel — Sun, 07 May 2017 15:39:30 GMT

Likely your new kernel doesn't support your CPU (kernel too old)

I have solved this problem.

Ying_W_ — Mon, 08 May 2017 06:19:58 GMT

I have solved this problem.

I use pmt-tools to counts this events, and pmt-tools download event from https://download.01.org/perfmon/HSX/， the new updated version there is a problem. I back to the old version, and the problem solved.