A recent Phoronix article described new performance counters being added to the Linux kernel. This seemed intriguing to me as a way to get analysis that previously had only done on Intel however it required a few steps. The first … Continue reading →
A few examples trying the AMDuProfCLI command. This seems to go through a “collect” stage followed by a “report” stage. There are some pre-defined profiles that can be seen with the “AMDuProfCLI info –list collect-configs command mev@sacramento:~$ AMDuProfCLI info –list … Continue reading →
There is a now a profiling tool named uprof for AMD CPUs/GPUs. Looking at the features I see a number of interest: Support for newest Zen4 CPUs which have added topdown performance counters. So with a Linux 6.2 kernel, I … Continue reading →
This blog post provides a comparison of my Ryzen 1950x (Threadripper) and Ryzen 3950 (Desktop) CPU Table elements below come from mixture of wikichip and direct measurements I’ve made with lmbench, STREAM and Phoronix Test suite. Given the specs, I’m … Continue reading →
Not sure what is causing it, but my Haswell system has started to freeze up when running “wspy –config topdown.config”. This started happening after I updated the system and started running benchmarks after a month on the road. Some additional … Continue reading →
Phoronix posted an article comparing Intel and AMD desktops on the Linux 4.18 kernel. The article says 100+ benchmarks were measured, though only half a dozen are displayed as part of the article. I haven’t done these benchmarks on 4.18, … Continue reading →
As June is coming to a close, useful to take stock of what is completed and what still remains. During June, the following were done: Phoronix benchmark list: I finished going through ~120 Phoronix benchmarks to at least do a … Continue reading →
Phoronix posted an article comparing POWER vs x86 on CPU benchmarks. This post looks at some of the workloads and adds comments.
Continue reading →The openssl Phoronix benchmark is interesting because the IPC on Intel Haswell system (1.66) is considerably higher than the IPC on AMD Ryzen (1.12). In this post, I’ll explore to look for causes.
Continue reading →Phoronix posted an article comparing hyperthreading on/off on an Intel i7. This post reviews some of the workloads and add comments.
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