Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 321390
b: refs/heads/master
c: 6601fac
h: refs/heads/master
v: v3
  • Loading branch information
Artem Bityutskiy authored and Al Viro committed Aug 4, 2012
1 parent dbb2990 commit cd8a4bc
Show file tree
Hide file tree
Showing 3 changed files with 14 additions and 14 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 34e5053fbe88800f5c2c6cbc849abb5a9f390974
refs/heads/master: 6601fac822778aa6003aed37d8ba7acdc9a4f369
12 changes: 6 additions & 6 deletions trunk/Documentation/laptops/laptop-mode.txt
Original file line number Diff line number Diff line change
Expand Up @@ -262,9 +262,9 @@ MINIMUM_BATTERY_MINUTES=10

#
# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
# exceeded, the kernel will wake pdflush which will then reduce the amount
# of dirty memory to dirty_background_ratio. Set this nice and low, so once
# some writeout has commenced, we do a lot of it.
# exceeded, the kernel will wake flusher threads which will then reduce the
# amount of dirty memory to dirty_background_ratio. Set this nice and low,
# so once some writeout has commenced, we do a lot of it.
#
#DIRTY_BACKGROUND_RATIO=5

Expand Down Expand Up @@ -384,9 +384,9 @@ CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'}

#
# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
# exceeded, the kernel will wake pdflush which will then reduce the amount
# of dirty memory to dirty_background_ratio. Set this nice and low, so once
# some writeout has commenced, we do a lot of it.
# exceeded, the kernel will wake flusher threads which will then reduce the
# amount of dirty memory to dirty_background_ratio. Set this nice and low,
# so once some writeout has commenced, we do a lot of it.
#
DIRTY_BACKGROUND_RATIO=${DIRTY_BACKGROUND_RATIO:-'5'}

Expand Down
14 changes: 7 additions & 7 deletions trunk/Documentation/sysctl/vm.txt
Original file line number Diff line number Diff line change
Expand Up @@ -76,8 +76,8 @@ huge pages although processes will also directly compact memory as required.

dirty_background_bytes

Contains the amount of dirty memory at which the pdflush background writeback
daemon will start writeback.
Contains the amount of dirty memory at which the background kernel
flusher threads will start writeback.

Note: dirty_background_bytes is the counterpart of dirty_background_ratio. Only
one of them may be specified at a time. When one sysctl is written it is
Expand All @@ -89,7 +89,7 @@ other appears as 0 when read.
dirty_background_ratio

Contains, as a percentage of total system memory, the number of pages at which
the pdflush background writeback daemon will start writing out dirty data.
the background kernel flusher threads will start writing out dirty data.

==============================================================

Expand All @@ -112,9 +112,9 @@ retained.
dirty_expire_centisecs

This tunable is used to define when dirty data is old enough to be eligible
for writeout by the pdflush daemons. It is expressed in 100'ths of a second.
Data which has been dirty in-memory for longer than this interval will be
written out next time a pdflush daemon wakes up.
for writeout by the kernel flusher threads. It is expressed in 100'ths
of a second. Data which has been dirty in-memory for longer than this
interval will be written out next time a flusher thread wakes up.

==============================================================

Expand All @@ -128,7 +128,7 @@ data.

dirty_writeback_centisecs

The pdflush writeback daemons will periodically wake up and write `old' data
The kernel flusher threads will periodically wake up and write `old' data
out to disk. This tunable expresses the interval between those wakeups, in
100'ths of a second.

Expand Down

0 comments on commit cd8a4bc

Please sign in to comment.