On Sun, 31 Oct 2010, Ben Gamari wrote: > This will allow distributions to tune this important vm parameter in a more > self-contained manner. > > Signed-off-by: Ben Gamari <bgamari.foss@xxxxxxxxx> > --- > Documentation/sysctl/vm.txt | 2 +- > mm/Kconfig | 11 +++++++++++ > mm/vmscan.c | 2 +- > 3 files changed, 13 insertions(+), 2 deletions(-) > > diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt > index 6c7d18c..792823b 100644 > --- a/Documentation/sysctl/vm.txt > +++ b/Documentation/sysctl/vm.txt > @@ -614,7 +614,7 @@ This control is used to define how aggressive the kernel will swap > memory pages. Higher values will increase agressiveness, lower values > decrease the amount of swap. > > -The default value is 60. > +The default value is 60 (changed with CONFIG_DEFAULT_SWAPINESS). > > ============================================================== > > diff --git a/mm/Kconfig b/mm/Kconfig > index 9c61158..729ecec 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -61,6 +61,17 @@ config SPARSEMEM_MANUAL > > endchoice > > +config DEFAULT_SWAPPINESS > + int "Default swappiness" > + default "60" > + range 0 100 > + help > + This control is used to define how aggressive the kernel will swap > + memory pages. Higher values will increase agressiveness, lower > + values decrease the amount of swap. Valid values range from 0 to 100. > + > + If unsure, keep default value of 60. > + Perhaps this help text should mention the fact that swapiness setting can be changed at runtime (regardless of the set default) by writing to /proc/sys/vm/swappiness ??? -- Jesper Juhl <jj@xxxxxxxxxxxxx> http://www.chaosbits.net/ Plain text mails only, please http://www.expita.com/nomime.html Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>