Set default readahead_hit_rate to 1 for the majority users.
Signed-off-by: Fengguang Wu <[email protected]>
---
Documentation/sysctl/vm.txt | 2 +-
mm/readahead.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- linux.orig/Documentation/sysctl/vm.txt
+++ linux/Documentation/sysctl/vm.txt
@@ -261,4 +261,4 @@ Possible values can be:
The larger value, the more capabilities, with more possible overheads.
-The default value is 0.
+The default value is 1.
--- linux.orig/mm/readahead.c
+++ linux/mm/readahead.c
@@ -42,7 +42,7 @@ int readahead_ratio = 50;
EXPORT_SYMBOL_GPL(readahead_ratio);
/* Readahead as long as cache hit ratio keeps above 1/##. */
-int readahead_hit_rate = 0;
+int readahead_hit_rate = 1;
#endif /* CONFIG_ADAPTIVE_READAHEAD */
/*
--
-
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