Phoronix article – benchmarks of high-end Intel/AMD desktops
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, but can look at analysis to see what is measured. This posting summarizes the phoronix conclusions as well as my observations of the benchmarks. Looks like an opportunity to look at a few new benchmarks. These are described in the table below.
| Benchmark | Phoronix observations | My observations | Analysis |
|---|---|---|---|
| indigobench | Ryzen & Threadripper faster than i7 and slower than i9 platforms | On_CPU of 97% with an IPC of 0.65. Many backend stalls and L2/L3 cache misses. | Analysis |
| hpcc | Threadripper fastest, i9 next followed by Ryzen 7 2700 and Core i7. | Requires specific variables during install, still need to figure these out. | |
| compress-p7zip | i9 fastest followed by threadripper. Ryzen 7 2700 similar to i7. | On_CPU 88% with some I/O to limit scaling. IPC 0.83 with 27% speculation misses (branch prediction). | Analysis |
| build-linux-kernel | i9 fastest, threadripper close, i7 slowest. | On_CPU 88%, mostly parallel compiles with a sequential period at end. High frontend stalls. # processes less in subsequent runs so might not do thorough "clean". | Analysis |
| c-ray | Threadripper fastest, i9 next and i7 slowest. | On_CPU almost 100% with moderately high IPC of 1.44. Frontend stalls of 10% and backend of 15%. | Analysis |
| octave-benchmark | i7 fastest, Ryzen 7 next and i9 after that. | Single-threaded with On_Core of 100%. Six workloads varying slightly but including backend memory stalls. | Analysis |
| v-ray | i9 fastest, threadripper/ryzen next and i7 slowest. | Installation instructions point to site to register and download the benchmark to place in download cache. Even following these steps had difficulty getting it installed. |
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