Zen5 mobile processors have been released. I had ordered an ASUS Zenbook S16 laptop with Ryzen 9 AI 365 processor and it arrived today. Full tech specifications are at the link but include: So far I have only run Windows … Continue reading →
I have a Zen4 7940HS system where I have installed CachyOS. This is an Arch-based Linux OS with a focus on performance. In particular, the Why CachyOS? page cites an optimized scheduler as well as packages compiled for the particular … Continue reading →
Following are affinity clusters of similar benchmarks based on on_cpu (# of cores used) and topdown metrics (retirement, fronted stall, backend stall, speculation) Experimented some and settled on the following approach for clustering. Attributes of interest First question was “clustering … Continue reading →
I have reached the point of diminishing returns for Phoronix tests. Reached 240 workloads analyzed and another ~30+ workloads that are skipped, mostly as GPU centric tests. These 270+ tests fully cover the 56 Phoronix benchmark articles so far this … Continue reading →
The following Phoronix Article – https://www.phoronix.com/review/nvidia-gh200-compilers compares GCC 13.2 with Clang 17.0.2 on an ARM platform. On the discussions attached the improvement for graphics-magick sharpen benchmark particularly stand out. So I thought I would see if I could see a … Continue reading →
I passed over 200 Phoronix tests added. There were a little over 10 benchmark articles in February. I seem to have most all the benchmarks when an article comes out and only needed to add one or two for some … Continue reading →
cachyos.org is a Arch distribution designed to be quick. Several techniques are used including having packages compiled for the ISA rather than a generic. A the following Phoronix article shows the v3 (modern ISA) packages generally win and the v4 … Continue reading →
I was surprised at the narrow range of the opcache hit/miss rate and related metrics for the icache As it turns out there is an obvious explanation. The metrics were being measured as expected, but my addition to the script … Continue reading →
I now have the ability to create summary histograms characterizing the workloads. These are (re)-generated as I update performance reports, but following is values with ~170 workloads added. Walking through the histograms and what they describe… Most of the runs … Continue reading →
After adding general parsing of measurement statistics, I can now also create a statistical summary across all ~170 benchmarks as shown below. This lets me see for example the minimum IPC, maximum IPC, mean IPC and standard deviation. This will … Continue reading →