Linux 6.17 Memory Management Optimizations, DAMON_STAT & Other Improvements
([Linux Kernel] 11 Minutes Ago
Linux 6.17)
- Reference: 0001566097
- News link: https://www.phoronix.com/news/Linux-6.17-MM
- Source link:
All of the memory management "MM" changes were merged this week for the ongoing [1]Linux 6.17 merge window.
Among the memory management feature highlights for Linux 6.17 include:
- DAMON_STAT is merged as a new DAMON offering for simple and practical access monitoring designed for simpler setup and use within production environments.
- Optimizing mremap() for large folios yielded a 37% reduction in execution time for a memset+mremap+munmap benchmark.
- A new standalone notifier for NUMA node memory state changes.
- Introducing the ability to provide per-node proactive memory reclaim as an alternative to the memcg-based reclaim.
- Per-VMA locks for /proc/pid/maps reads to address large contention issues while in some instances reducing latency by more than half.
- Optimizing mprotect() for large folios can provide greater than 3x speed-ups to mprotect() when using large folios.
More details on the MM changes for Linux 6.17 via Andrew Morton's [2]pull request .
[1] https://www.phoronix.com/search/Linux+6.17
[2] https://lore.kernel.org/lkml/20250730152806.16f5c618e3af0d3b8dea3159@linux-foundation.org/
Among the memory management feature highlights for Linux 6.17 include:
- DAMON_STAT is merged as a new DAMON offering for simple and practical access monitoring designed for simpler setup and use within production environments.
- Optimizing mremap() for large folios yielded a 37% reduction in execution time for a memset+mremap+munmap benchmark.
- A new standalone notifier for NUMA node memory state changes.
- Introducing the ability to provide per-node proactive memory reclaim as an alternative to the memcg-based reclaim.
- Per-VMA locks for /proc/pid/maps reads to address large contention issues while in some instances reducing latency by more than half.
- Optimizing mprotect() for large folios can provide greater than 3x speed-ups to mprotect() when using large folios.
More details on the MM changes for Linux 6.17 via Andrew Morton's [2]pull request .
[1] https://www.phoronix.com/search/Linux+6.17
[2] https://lore.kernel.org/lkml/20250730152806.16f5c618e3af0d3b8dea3159@linux-foundation.org/
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