Ok, people suggested to split out the change_protection() modification
into a third patch.
This series implements an mprotect() optimization that also
helps improve the quality of working set scanning:
- working set scanning gets faster
- we can scan with a touched-page rate, instead of with a
virtual-memory proportional rate (within limits).
This is already part of numa/core, but wanted to send it out
separately as well, to get specific feedback for the mprotect()
bits.
Thanks,
Ingo
---
Ingo Molnar (1):
mm: Optimize the TLB flush of sys_mprotect() and change_protection()
users
Peter Zijlstra (2):
mm: Count the number of pages affected in change_protection()
sched, numa, mm: Count WS scanning against present PTEs, not virtual
memory ranges
include/linux/hugetlb.h | 8 ++++++--
include/linux/mm.h | 6 +++---
kernel/sched/fair.c | 37 +++++++++++++++++++++----------------
mm/hugetlb.c | 10 ++++++++--
mm/mprotect.c | 46 ++++++++++++++++++++++++++++++++++------------
5 files changed, 72 insertions(+), 35 deletions(-)
--
1.7.11.7
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