RFC mm: add last level page table numa info to /proc/pid/numa_pgtable
Get series with b4
b4 am [email protected]Versions newest first · linked by author and title
- v4 RFC Latest1 patch 4 repliesIn review
- v3 RFC1 patch 2 repliesSuperseded
- v2 RFC1 patch 0 repliesSuperseded
Earlier versions · 1
| Version | Posted | Patches | Replies | Status |
|---|---|---|---|---|
| v1 RFC | 1 patch | 2 replies | Superseded |
V4 -> V3 from the cover letter
1, Add some detects and spinlock when operating PMD page as Baolin Wang advised.
Patches in v4 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/1 | mm: add last level page table numa info to /proc/pid/numa_pgtablefs/ fs/ fs/ | +90 | 4 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v4 yet.
Cover letter [RFC PATCH V4 0/1] mm: add last level page table numa info to /proc/pid/numa_pgtable
In many data center servers, the shared memory architectures is Non-Uniform Memory Access (NUMA), remote numa node data access often brings a high latency problem, but what we are easy to ignore is that the page table remote numa access, It can also leads to a performance degradation.
So there add a new interface in /proc, This will help developers to get more info about performance issues if they are caused by cross-NUMA.
V4 -> V3
1, Add some detects and spinlock when operating PMD page as Baolin Wang advised.
V2 -> V3
1, Fix compile warning bug.
V1 -> V2
1, As Matthew Wilcox advise, Simplify the code.
2, Do some codes format fix.
V3: https://lore.kernel.org/linux-mm/[email protected]/
V2: https://lore.kernel.org/linux-mm/[email protected]/
V1: https://lore.kernel.org/linux-mm/[email protected]/T/
Xin Hao (1):
mm: add last level page table numa info to /proc/pid/numa_pgtable
fs/proc/base.c | 2 ++ fs/proc/internal.h | 1 + fs/proc/task_mmu.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 90 insertions(+)
--
2.31.0