On 2015/11/18 17:42, Jianfeng Tan wrote: > Currently DPDK does not respect the quota of a hugetblfs mount. > It will fail to init the EAL because it tries to map the number of > free hugepages in the system rather than using the number specified > in the quota for that mount. > > To solve this issue, we take the quota into consideration when > calculating the number of hugepages to map. We use either the number > specified in the quota, or number of available hugepages, whichever > is lower. > > There are possible race conditions when multiple applications > allocate hugepages in different hugetlbfs mounts of the same size, > so the suggested system would have a pool with enough hugepages for > all hugetlbfs mount quotas. > > There is, however, still an open issue with > CONFIG_RTE_EAL_SINGLE_FILE_SEGMENTS. When this option is enabled > (IVSHMEM target does this by default), having hugetlbfs mounts with > quota will fail to remap hugepages because it relies on having > mapped all free hugepages in the system. > > Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com> >
Acked-by: Michael Qiu <michael.qiu at intel.com>
