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| author | Rebecca Mckeever <remckee0@gmail.com> | 2022-09-13 00:21:10 -0500 |
|---|---|---|
| committer | Mike Rapoport <rppt@linux.ibm.com> | 2022-09-18 10:30:20 +0300 |
| commit | 50c80241f15890a64b9302187faaeb7cfe78b4b8 (patch) | |
| tree | 0fecc9b805650f0a57d151d4e205c3e6b0fcfc27 /tools/perf/scripts/python/sched-migration.py | |
| parent | b338bde5a3a9c4ccf6c83e0a20c8de3ad281ef02 (diff) | |
memblock tests: add top-down NUMA tests for memblock_alloc_try_nid*
Add tests for memblock_alloc_try_nid() and memblock_alloc_try_nid_raw()
where the simulated physical memory is set up with multiple NUMA nodes.
Additionally, all of these tests set nid != NUMA_NO_NODE. These tests are
run with a top-down allocation direction.
The tested scenarios are:
Range unrestricted:
- region can be allocated in the specific node requested:
+ there are no previously reserved regions
+ the requested node is partially reserved but has enough space
- the specific node requested cannot accommodate the request, but the
region can be allocated in a different node:
+ there are no previously reserved regions, but node is too small
+ the requested node is fully reserved
+ the requested node is partially reserved and does not have
enough space
Range restricted:
- region can be allocated in the specific node requested after dropping
min_addr:
+ range partially overlaps with two different nodes, where the first
node is the requested node
+ range partially overlaps with two different nodes, where the
requested node ends before min_addr
- region cannot be allocated in the specific node requested, but it can be
allocated in the requested range:
+ range overlaps with multiple nodes along node boundaries, and the
requested node ends before min_addr
+ range overlaps with multiple nodes along node boundaries, and the
requested node starts after max_addr
- region cannot be allocated in the specific node requested, but it can be
allocated after dropping min_addr:
+ range partially overlaps with two different nodes, where the
second node is the requested node
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/84009c5b3969337ccf89df850db56d364f8c228b.1663046060.git.remckee0@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions