Messages in this thread | | | Subject | Re: [PATCH V1] hugetlbfs: Extend the definition of hugepages parameter to support node allocation | From | David Hildenbrand <> | Date | Mon, 23 Aug 2021 21:17:20 +0200 |
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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
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