These patches add additional tests for memblock_alloc_try_nid() and
memblock_alloc_try_nid_raw() that use a simulated physical
memory that is set up with multiple NUMA nodes. Additionally, most of
these tests set nid != NUMA_NO_NODE.
To set up a simulated physical memory with multiple NUMA nodes, patch 1
introduces setup_numa_memblock(). This function uses a previously
allocated dummy physical memory. It can be used in place of
setup_memblock() in tests that need to simulate a NUMA system.
These tests are run twice, once for memblock_alloc_try_nid() and once
for memblock_alloc_try_nid_raw(), so that both functions are tested with
the same set of tests. When the tests run memblock_alloc_try_nid(), they
test that the entire memory region is zero. When the tests run
memblock_alloc_try_nid_raw(), they test that the entire memory region is
nonzero.
---
Changelog
v3 -> v4
Based on feedback from David Hildenbrand:
PATCH 1:
- tests/common.h:
+ Remove #define MEM_FACTOR
PATCH 2:
- tests/alloc_nid_api.c:
+ Add missing blank line after alloc_nid_test_flags = flags;
PATCH 2, PATCH 3, PATCH 4:
- tests/alloc_nid_api.c:
+ Define variables in new tests in a single block
+ Change "cleared memory region" to "memory region" in comment blocks
for new tests
Based on feedback from Mike Rapoport:
PATCH 1:
- tests/common.c:
+ Remove node_sizes[] array
- tests/common.c, tests/common.h:
+ Combine setup_numa_memblock_generic() and setup_numa_memblock():
* Remove setup_numa_memblock(void)
* Change setup_numa_memblock_generic() to setup_numa_memblock()
and remove the factor and node_cnt parameters
* Change nodes[] parameter to an array containing the denominators
of the fractions of MEM_SIZE contained in each node
e.g., if nodes[0] = SZ_8, node 0 will contain 1/8th of MEM_SIZE
PATCH 2:
- tests/alloc_nid_api.c:
+ Add node_fractions[] array:
* Based on values from node_sizes[] array previously in PATCH 1
* Update to fit the new nodes[] parameter of setup_numa_memblock()
v2 -> v3
PATCH 2, PATCH 3, PATCH 4:
- tests/alloc_nid_api.c:
+ Edits for consistency between tests and test naming styles:
* Change "numa_top_down" to "top_down_numa"
* Change "numa_bottom_up" to "bottom_up_numa"
* Move "generic" to immediately before "check"
* alloc_try_nid_bottom_up_numa_small_node_check() and
alloc_try_nid_bottom_up_numa_node_reserved_check():
- Separate size definition from its declaration
Updates based on changes to the dependent patch set noted above:
PATCH 2, PATCH 3, PATCH 4:
- tests/alloc_nid_api.c:
+ get_func_testing():
* Rename to get_memblock_alloc_try_nid_name().
+ Update calls to verify_mem_content() to assert_mem_content().
v1 -> v2
Updates based on changes to the dependent patch set noted above:
PATCH 2, PATCH 3, PATCH 4:
- tests/alloc_nid_api.c:
+ Update calls to verify_mem_content() to include the flags parameter
required by the new, common verify_mem_content() function.
---
Rebecca Mckeever (4):
memblock tests: add simulation of physical memory with multiple NUMA
nodes
memblock tests: add top-down NUMA tests for memblock_alloc_try_nid*
memblock tests: add bottom-up NUMA tests for memblock_alloc_try_nid*
memblock tests: add generic NUMA tests for memblock_alloc_try_nid*
.../testing/memblock/scripts/Makefile.include | 2 +-
tools/testing/memblock/tests/alloc_nid_api.c | 1459 ++++++++++++++++-
tools/testing/memblock/tests/alloc_nid_api.h | 16 +
tools/testing/memblock/tests/common.c | 29 +
tools/testing/memblock/tests/common.h | 22 +-
5 files changed, 1515 insertions(+), 13 deletions(-)
--
2.25.1
