I'm trying to benchmark my Pi 3 B+ and my Pi 4 B, both running the latest Raspbian Buster, freshly installed on two identical 128 GB microSD cards:
sysbench --test=memory --memory-block-size=1K --memory-total-size=2G --memory-oper=write --num-threads=4 run
--memory-total-size option doesn't allow me to specify anything larger than 2G and I couldn't get it running.
For comparison, the following command runs perfectly well on my development machine (Linux amd64):
sysbench --test=memory --memory-block-size=1M --memory-total-size=1T --memory-oper=write --num-threads=8 run
Is there any way to run a SysBench writing or reading more than 2 GB of memory?