Re: [PATCH V1] hugetlbfs: Extend the definition of hugepages parameter to support node allocation

On 23.08.21 15:01, yaozhenguo 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 hugepags in one node. For example: DPDK needs hugepages
which is in the same node as NIC. if DPDK needs four hugepags of 1G
size in node1 and system has 16 numa nodes. We must reserve 64 hugepags
in kernel cmdline. But, only four hugepages is 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 hugepages kernel parameter to specify
node number of hugepages to allocate at boot.
For example add following parameter:

hugepagesz=1G hugepages=0:1,1:3

It will allocate 1 hugepags in node0 and 3 hugepages in node1.

I like this format.


-- 
Thanks,

David / dhildenb