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| author | Rabin Vincent <rabin.vincent@axis.com> | 2015-07-14 07:35:11 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2015-07-24 15:05:56 +0200 |
| commit | a10726bb5472ff2ed95180cfb5e82091c45d7b19 (patch) | |
| tree | 083278a7720ee254099477d0defbdd799fe00c53 /Documentation/sysctl/vm.txt | |
| parent | Documenation: Update location of docproc.c (diff) | |
| download | linux-a10726bb5472ff2ed95180cfb5e82091c45d7b19.tar.xz linux-a10726bb5472ff2ed95180cfb5e82091c45d7b19.zip | |
Documentation: mm: fix location of extfrag_index
/proc/extfrag_index does not exist. This file is in debugfs. Fix the
description of extfrag_threshold to reflect this.
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/sysctl/vm.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 9832ec52f859..9c3f2f8054b5 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -225,11 +225,11 @@ with your system. To disable them, echo 4 (bit 3) into drop_caches. extfrag_threshold This parameter affects whether the kernel will compact memory or direct -reclaim to satisfy a high-order allocation. /proc/extfrag_index shows what -the fragmentation index for each order is in each zone in the system. Values -tending towards 0 imply allocations would fail due to lack of memory, -values towards 1000 imply failures are due to fragmentation and -1 implies -that the allocation will succeed as long as watermarks are met. +reclaim to satisfy a high-order allocation. The extfrag/extfrag_index file in +debugfs shows what the fragmentation index for each order is in each zone in +the system. Values tending towards 0 imply allocations would fail due to lack +of memory, values towards 1000 imply failures are due to fragmentation and -1 +implies that the allocation will succeed as long as watermarks are met. The kernel will not compact memory in a zone if the fragmentation index is <= extfrag_threshold. The default value is 500. |