Systems with S10 were configured with 256 hugepages (cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages) a few weeks ago. Now they are reverted back to 20. Can we get them set back to 256? Our tools require them to be high, to be able to maximize the DMA transfers between the S10 and system memory. The demo DMA provided by IntelDevStack is not sufficient for realtime streaming, and we have written our own optimized DMA engine, but we require these larger page tables. Other users will benefit from them as well.
To enable, please add
vm.nr_hugepages = 256
to /etc/sysctl.d/10-hugetlbfs.conf and either run 'sudo sysctl -p' or reboot to enable them.
Senior DevOps Engineer
As a Linux developer and sysadmin for 25 years (I helped work on the Intel LinuxSET images back in 1999-2003), I am well aware of how to set this, however it requires root/sudo which is not allowed on devcloud.
Just because your forum tags me as a beginner doesn't mean I am one.