From 3b27b10f40be6ff1ee7092fe032bdc0d72b192a5 Mon Sep 17 00:00:00 2001 From: Shuoran Liu Date: Wed, 27 Jan 2016 09:57:30 +0800 Subject: f2fs: introduce lifetime write IO statistics This patch introduces lifetime IO write statistics exposed to the sysfs interface. The write IO amount is obtained from block layer, accumulated in the file system and stored in the hot node summary of checkpoint. Signed-off-by: Shuoran Liu Signed-off-by: Pengyang Hou [Jaegeuk Kim: add sysfs documentation] Signed-off-by: Jaegeuk Kim --- Documentation/ABI/testing/sysfs-fs-f2fs | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 523cb9d4e..a809f6005 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -106,3 +106,9 @@ Description: Controls dirty nat entries ratio threshold, if current ratio exceeds configured threshold, checkpoint will be triggered for flushing dirty nat entries. + +What: /sys/fs/f2fs//lifetime_write_kbytes +Date: January 2016 +Contact: "Shuoran Liu" +Description: + Shows total written kbytes issued to disk. -- cgit v1.2.3