min_ptes_young specifies at least how many young pages needed to create a THP. This threshold also effects when making swapin readahead (if needed) to create a THP. We decide whether to make swapin readahed wortwhile looking the value.
/sys/kernel/mm/transparent_hugepage/khugepaged/min_ptes_young Signed-off-by: Ebru Akagunduz <ebru.akagun...@gmail.com> --- Documentation/vm/transhuge.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt index 2ec6adb..0ae713b 100644 --- a/Documentation/vm/transhuge.txt +++ b/Documentation/vm/transhuge.txt @@ -193,6 +193,13 @@ memory. A lower value can prevent THPs from being collapsed, resulting fewer pages being collapsed into THPs, and lower memory access performance. +min_ptes_young specifies at least how many young pages needed +to create a THP. This threshold also effects when making swapin +readahead (if needed) to create a THP. We decide whether to make +swapin readahed wortwhile looking the value. + +/sys/kernel/mm/transparent_hugepage/khugepaged/min_ptes_young + == Boot parameter == You can change the sysfs boot time defaults of Transparent Hugepage -- 1.9.1
