IMC Performance

Lavalys Everest 4.60.1540 Beta Memory Performance

Website: Lavalys





The read performance hit a little bit of a bump at 2.67GHz to 2.93GHz, but improves again at 3.2GHz - Everest was consistent in reporting this and we can allude it's possibly due to core-uncore ratio changes, perhaps: 1:1.23 works better than 1:1.1. Overall though there are significant increases all round, although even though memory controller frequency elevation does give it a lower latency, as we saw previously, optimising the memory timings works out better in that equation.

L3 Cache Performance

Just to confirm our theory above - the latency of a 2.93GHz CPU Uncore gave us a consistently 0.3ns higher latency than 2.67GHz, indicating the other three are slightly more optimised for Core-Uncore data transfer. Increasing the Uncore frequency helps L3 cache writes hugely - by over 32 percent - but it does little for copy performance and even less for read.