如何在ubuntu上默认启用透明的大页面？
- $uname -a
- Linux yoda 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
- ~$cd /sys/kernel/mm/transparent_hugepage/
- /sys/kernel/mm/transparent_hugepage$ls
- defrag enabled khugepaged
- /sys/kernel/mm/transparent_hugepage$cat enabled
- always [madvise] never
- /sys/kernel/mm/transparent_hugepage$sudo echo always > enabled
- -bash: enabled: Permission denied
- /sys/kernel/mm/transparent_hugepage$sudo ls
- [sudo] password for <...>:
- defrag enabled khugepaged
- /sys/kernel/mm/transparent_hugepage$sudo ls
- defrag enabled khugepaged
- /sys/kernel/mm/transparent_hugepage$sudo echo always > enabled
- -bash: enabled: Permission denied
- /sys/kernel/mm/transparent_hugepage$cat enabled
- always [madvise] never
