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I'd be more likely to believe Geekbench is just a terrible, broken benchmark than anything else. An Epyc 7501 (32c/64t) apparently only gets 17k multicore scor
by kllrnohj 7y ago
I'd be more likely to believe Geekbench is just a terrible, broken benchmark than anything else.
An Epyc 7501 (32c/64t) apparently only gets 17k multicore score on geekbench under windows: https://browser.geekbench.com/processors/2141 https://browser.geekbench.com/processors/2141
Which is hilariously wrong. And if you think that's some quirk of Epyc, well, same CPU gets 65k when run under Linux: https://browser.geekbench.com/v4/cpu/10782563 https://browser.geekbench.com/v4/cpu/10782563 So clearly there's a software issue in play. Maybe this is related to the new Windows scheduler change. Maybe geekbench just has some pathologically bad behavior. Who knows.
So yes we should wait for release & independent testing before getting too excited, even if that's just so we get numbers from something other than geekbench.
- jfpoole 7y agoGeekbench exposes some strange behaviour around the memory allocator under Windows. On systems with more than 8 cores Geekbench spends a significant chunk of time in the memory allocator due to contention. This issue (at least to this degree) isn't present on Linux, so that's why Epyc scores are much higher on Linux than Windows.
- simplyinfinity 7y agoThere is a windows scheduler bug that affects epyc cpus. https://m.hexus.net/tech/news/cpu/126440-amd-working-microsoft-threadripper-2-scheduler-issues/ https://m.hexus.net/tech/news/cpu/126440-amd-working-microso...