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

[David Hildenbrand]

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