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author | Ingo Molnar <mingo@kernel.org> | 2019-04-30 07:51:54 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2019-04-30 07:51:54 +0200 |
commit | d5963d87bf84060ff3fb572bf6d3606f7fd087d1 (patch) | |
tree | 5a94c33a56d7bdd91a38aa0ec50e9202914f742e /Documentation | |
parent | 3db6d5a5ecaf0a778d721ccf9809248350d4bfaf (diff) | |
parent | 37624b58542fb9f2d9a70e6ea006ef8a5f66c30b (diff) | |
download | linux-d5963d87bf84060ff3fb572bf6d3606f7fd087d1.tar.bz2 |
Merge tag 'v5.1-rc7' into x86/mm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/sysctl/vm.txt | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 6af24cdb25cc..3f13d8599337 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -866,14 +866,14 @@ The intent is that compaction has less work to do in the future and to increase the success rate of future high-order allocations such as SLUB allocations, THP and hugetlbfs pages. -To make it sensible with respect to the watermark_scale_factor parameter, -the unit is in fractions of 10,000. The default value of 15,000 means -that up to 150% of the high watermark will be reclaimed in the event of -a pageblock being mixed due to fragmentation. The level of reclaim is -determined by the number of fragmentation events that occurred in the -recent past. If this value is smaller than a pageblock then a pageblocks -worth of pages will be reclaimed (e.g. 2MB on 64-bit x86). A boost factor -of 0 will disable the feature. +To make it sensible with respect to the watermark_scale_factor +parameter, the unit is in fractions of 10,000. The default value of +15,000 on !DISCONTIGMEM configurations means that up to 150% of the high +watermark will be reclaimed in the event of a pageblock being mixed due +to fragmentation. The level of reclaim is determined by the number of +fragmentation events that occurred in the recent past. If this value is +smaller than a pageblock then a pageblocks worth of pages will be reclaimed +(e.g. 2MB on 64-bit x86). A boost factor of 0 will disable the feature. ============================================================= |