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Systems Performance: Enterprise and the Cloud, 2nd Edition How To Add eBPF Observability To Your ProductīPF binaries: BTF, CO-RE, and the future of BPF perf tools
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I was checking my CPU frequency with cpupower frequency-info:Ĭurrent CPU frequency: 1.USENIX LISA2021 Computing Performance: On the Horizon Anyway, I found the problem, it was my approach. I would be happy if some Linux driver developer would take a look and say what is wrong with my approach or provide documentation for open source driver team if Linux kernel is broken at this point:ĪMD responded my distribution is not supported. Yeah, of course, I could use Catalyst driver, but it's so outdated that it wouldn't work anyway. My CPU is supposed to go up to 3,8GHz with Turbo Core technology but all I get is 3,1GHz because it seems that something is not properly initialized by radeon driver.
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I really didn't expect that my CPU clock frequency will be lowered just because I'm using Linux. I bought your CPU AMD A8 7600 (AD7600YBJABOX), my motherboard is Asrock A88M-G/3.1. I tried with 1, 2 and 3 threads but unfortunately 3,1GHz is the ultimate barrier I came to the conclusion that CPU needs to have some free power to "boost" frequency, so I tried with less threads stressing the CPU. I must have done something wrong yesterday. cpupower frequency-info doesn't show 2,4GHz but 3,1GHz. Truely, I have such a limit set, as it can be seen in this file: I read further and I found information about BIOS limits ( … clnk&gl=pl). I tested it with mprime torture test and frequency reported by cpupower frequency-info never exceeds 3,1Ghz. The governor "ondemand" may decide which speed to useĬurrent CPU frequency: 1.40 GHz (asserted by call to hardware) CPUs which run at the same hardware frequency: 0ĬPUs which need to have their frequency coordinated by software: 0Īvailable frequency steps: 3.10 GHz, 2.80 GHz, 2.40 GHz, 1.90 GHz, 1.40 GHzĪvailable cpufreq governors: ondemand performanceĬurrent policy: frequency should be within 1.40 GHz and 3.10 GHz.
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