Scale back read-ahead tweak to address lag

netarchy · May 1, 2011 · 0a4bc72 · 0a4bc72
1 parent 8f56dca
commit 0a4bc72
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/linux/mm.h b/include/linux/mm.h
@@ -1314,7 +1314,7 @@ int write_one_page(struct page *page, int wait);
 void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
-#define VM_MAX_READAHEAD	2048	/* kbytes */
+#define VM_MAX_READAHEAD	1024	/* kbytes */
 #define VM_MIN_READAHEAD	16	/* kbytes (includes current page) */
 
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,