move_pages: dont use hardcoded node numbers
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- v1 Latest2 patches 4 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | move_pages_support: use only allowed nodestestcases/ testcases/ | +62 | 1 reply | |
| 2/2 | move_pages: dont use hardcoded node numberstestcases/ testcases/ testcases/ +7 more | +95 | 0 replies |
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Cover letter [LTP] [PATCH 0/2] move_pages: dont use hardcoded node numbers
Similar to previous patch for mbind01 and get_mempolicy01, move_pages tests are also using hardcoded nodes 0/1.
This patch series is introducing get_allowed_nodes() function to move_pages_support, which is using
get_mempolicy(..., MPOL_F_MEMS_ALLOWED)
to obtain list of nodes tests can use.
I tested it with following setups. Note that setup 4 and 5 will end with TCONF as there is only 1 node with memory.
1.
# numactl -H available: 8 nodes (2,4-10) node 2 cpus: 0 node 2 size: 127 MB node 2 free: 9 MB node 4 cpus: node 4 size: 128 MB node 4 free: 9 MB node 5 cpus: node 5 size: 128 MB node 5 free: 64 MB node 6 cpus: node 6 size: 128 MB node 6 free: 121 MB node 7 cpus: node 7 size: 128 MB node 7 free: 121 MB node 8 cpus: node 8 size: 128 MB node 8 free: 121 MB node 9 cpus: node 9 size: 128 MB node 9 free: 121 MB node 10 cpus: node 10 size: 127 MB node 10 free: 123 MB
2.
# numactl -H available: 4 nodes (0-3) node 0 cpus: 0 1 2 3 4 5 node 0 size: 2047 MB node 0 free: 564 MB node 1 cpus: 6 7 8 9 10 11 node 1 size: 2046 MB node 1 free: 451 MB node 2 cpus: 18 19 20 21 22 23 node 2 size: 2048 MB node 2 free: 595 MB node 3 cpus: 12 13 14 15 16 17 node 3 size: 2048 MB node 3 free: 236 MB node distances: node 0 1 2 3 0: 10 16 16 16 1: 16 10 16 16 2: 16 16 10 16 3: 16 16 16 10
3.
# numactl -H available: 2 nodes (2-3) node 2 cpus: 0 node 2 size: 511 MB node 2 free: 154 MB node 3 cpus: node 3 size: 511 MB node 3 free: 490 MB
4.
# numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 node 0 size: 0 MB node 0 free: 0 MB node 1 cpus: node 1 size: 12288 MB node 1 free: 9689 MB node distances: node 0 1 0: 10 40 1: 40 10
5.
# numactl -H available: 1 nodes (0) node 0 cpus: 0 node 0 size: 1023 MB node 0 free: 654 MB node distances: node 0 0: 10
Jan Stancek (2):
move_pages_support: use only allowed nodes
move_pages: dont use hardcoded node numbers
.../kernel/syscalls/move_pages/move_pages02.c | 13 +++- .../kernel/syscalls/move_pages/move_pages03.c | 13 +++- .../kernel/syscalls/move_pages/move_pages04.c | 13 +++- .../kernel/syscalls/move_pages/move_pages05.c | 13 +++- .../kernel/syscalls/move_pages/move_pages06.c | 10 ++- .../kernel/syscalls/move_pages/move_pages07.c | 13 +++- .../kernel/syscalls/move_pages/move_pages08.c | 12 +++- .../kernel/syscalls/move_pages/move_pages09.c | 8 ++- .../kernel/syscalls/move_pages/move_pages10.c | 13 +++- .../kernel/syscalls/move_pages/move_pages11.c | 13 +++- .../syscalls/move_pages/move_pages_support.c | 74 ++++++++++++++++---- .../syscalls/move_pages/move_pages_support.h | 1 + 12 files changed, 157 insertions(+), 39 deletions(-)
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