linux-kernel - [RFC PATCH 1/5] x86/Kconfig: Add Page Cache Accounting entry

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Date:	Wed,  2 Mar 2011 16:38:06 +0800
From:	Liu Yuan <namei.unix@...il.com>
To:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	jaxboe@...ionio.com, akpm@...ux-foundation.org,
	fengguang.wu@...el.com
Subject: [RFC PATCH 1/5] x86/Kconfig: Add Page Cache Accounting entry

From: Liu Yuan <tailai.ly@...bao.com>

Signed-off-by: Liu Yuan <tailai.ly@...bao.com>
---
 arch/x86/Kconfig.debug |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 615e188..f29e32d 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -304,4 +304,13 @@ config DEBUG_STRICT_USER_COPY_CHECKS
 
 	  If unsure, or if you run an older (pre 4.4) gcc, say N.
 
+config PAGE_CACHE_ACCT
+	bool "Page cache accounting"
+	---help---
+	  Enabling this options to account for page cache hit/missed number of
+	  times. This would allow user space applications get better knowledge
+	  of underlying page cache system by reading virtual file. The statitics
+	  per partition are collected.
+
+	  If unsure, say N.
 endmenu
-- 
1.7.0.4

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