* rte_malloc_socket UNABLE to allocate 8GB.
@ 2014-09-24 15:26 Dmitry Vyal
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From: Dmitry Vyal @ 2014-09-24 15:26 UTC (permalink / raw)
To: dev-VfR2kkLFssw@public.gmane.org
Dear list,
I'm experiencing problems allocating big chunks of memory with
rte_malloc_socket. Basically, it successfully allocates 6GB but returns
NULL when I try to allocate 8GB. I tried dpdk-1.5.1 and 1.7.1 and got
similar behavior. First machine I was trying this on had 29*1GB
hugepages on single NUMA node, preallocated using grub. Another one had
14000*2Mb hugepages split between two sockets.
Are there any restrictions on maximum size of the block to be allocated
with rte_malloc_socket?
$ mount |grep hug
nodev on /mnt/huge type hugetlbfs (rw,pagesize=1Gb)
$ cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages
29
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
Best regards,
Dmitry
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