On 10/4/21 10:47 PM, Zhenguo Yao wrote: > We can specify the number of hugepages to allocate at boot. But the > hugepages is balanced in all nodes at present. In some scenarios, > we only need hugepages in one node. For example: DPDK needs hugepages > which are in the same node as NIC. > > If DPDK needs four hugepages of 1G size in node1 and system has 16 numa > nodes we must reserve 64 hugepages on the kernel cmdline. But only four > hugepages are used. The others should be free after boot. If the system > memory is low(for example: 64G), it will be an impossible task. > > So extend the hugepages parameter to support specifying hugepages on a > specific node. For example add following parameter: > > hugepagesz=1G hugepages=0:1,1:3 > > It will allocate 1 hugepage in node0 and 3 hugepages in node1. > > Signed-off-by: Zhenguo Yao <yaozhenguo1@xxxxxxxxx> > Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Looks good. Thank you! -- Mike Kravetz
