diff options
| author | Lee Susman <lsusman@codeaurora.org> | 2013-10-08 09:47:59 +0300 |
|---|---|---|
| committer | Zhao Wei Liew <zhaoweiliew@gmail.com> | 2016-02-23 19:01:46 +0800 |
| commit | 7fecc0e43ea9ec3defc4827f546b17d98f9d51b3 (patch) | |
| tree | c962ce6abbfda798abfa1ee2df5eff15f365d88b /include/linux/mm.h | |
| parent | 668098de01da41b2a5e3a576cab78f1209594f58 (diff) | |
Change the VM_MAX_READAHEAD value from the default 128KB
to 512KB. This will allow the readahead window to grow to a maximum size
of 512KB, which greatly benefits to sequential read throughput.
Change-Id: Ia0780ea4e2a4ae0b6111485b72fb25376dcb1f96
Signed-off-by: Lee Susman <lsusman@codeaurora.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 63c1b90ba9c..328d55687eb 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1432,7 +1432,7 @@ int write_one_page(struct page *page, int wait); void task_dirty_inc(struct task_struct *tsk); /* readahead.c */ -#define VM_MAX_READAHEAD 128 /* kbytes */ +#define VM_MAX_READAHEAD 512 /* kbytes */ #define VM_MIN_READAHEAD 16 /* kbytes (includes current page) */ int force_page_cache_readahead(struct address_space *mapping, struct file *filp, |