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 →
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.
Continue reading →I’ve analyzed the OpenFOAM CFD application using the motorbike tutorial page and created an analysis page for the results as well as added it to the overall workload summary. This post describes a few high-level takeaways I have from the … Continue reading →
I’ve analyzed the gromacs computational chemistry application using three sample workloads and created an analysis page for the results as well as added them to the overall workload summary. This post describes a few higher-level takeaways I have from the … Continue reading →
Intel processors provide a useful set of performance counters for doing topdown analysis, particularly at the first topdown level. This first level asks questions in the following hierarchy: Is a Uop dispatched? If yes, is it retired? If yes –> … Continue reading →
Phoronix posted an article comparing 28 desktop CPUs. This post reviews some of the workloads that were used.
Continue reading →On the upper left of the web site is now an item labeled “phoronix”. Clicking there returns a table with a long list of Phoronix benchmarks. For each I’ve recorded the description, scores when running on my Intel reference system, … Continue reading →