Messages in this thread | | | Subject | Re: [PATCH v10 7/8] hugetlb_cgroup: Add hugetlb_cgroup reservation tests | From | Sandipan Das <> | Date | Thu, 23 Jan 2020 14:45:34 +0530 |
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Hi,
On 15/01/20 6:56 am, Mina Almasry wrote: > The tests use both shared and private mapped hugetlb memory, and > monitors the hugetlb usage counter as well as the hugetlb reservation > counter. They test different configurations such as hugetlb memory usage > via hugetlbfs, or MAP_HUGETLB, or shmget/shmat, and with and without > MAP_POPULATE. > > Also add test for hugetlb reservation reparenting, since this is > a subtle issue. > > Signed-off-by: Mina Almasry <almasrymina@google.com> >
For powerpc64, either 16MB/16GB or 2MB/1GB huge pages are supported depending on the MMU type (Hash or Radix). I was just running these tests on a powerpc64 system with Hash MMU and ran into problems because the tests assume that the hugepage size is always 2MB. Can you determine the huge page size at runtime?
- Sandipan
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