| What: /sys/kernel/mm/swap/ | |
| Date: August 2017 | |
| Contact: Linux memory management mailing list <linux-mm@kvack.org> | |
| Description: Interface for swapping | |
| What: /sys/kernel/mm/swap/vma_ra_enabled | |
| Date: August 2017 | |
| Contact: Linux memory management mailing list <linux-mm@kvack.org> | |
| Description: Enable/disable VMA based swap readahead. | |
| If set to true, the VMA based swap readahead algorithm | |
| will be used for swappable anonymous pages mapped in a | |
| VMA, and the global swap readahead algorithm will be | |
| still used for tmpfs etc. other users. If set to | |
| false, the global swap readahead algorithm will be | |
| used for all swappable pages. | |
| What: /sys/kernel/mm/swap/vma_ra_max_order | |
| Date: August 2017 | |
| Contact: Linux memory management mailing list <linux-mm@kvack.org> | |
| Description: The max readahead size in order for VMA based swap readahead | |
| VMA based swap readahead algorithm will readahead at | |
| most 1 << max_order pages for each readahead. The | |
| real readahead size for each readahead will be scaled | |
| according to the estimation algorithm. |