From 2bc4bea33848e4c5f441fcec4a94497082c1cc9f Mon Sep 17 00:00:00 2001 From: Daeho Jeong Date: Mon, 30 Mar 2020 03:30:59 +0000 Subject: f2fs: add tracepoint for f2fs iostat Added a tracepoint to see iostat of f2fs. Default period of that is 3 second. This tracepoint can be used to be monitoring I/O statistics periodically. Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu 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 c8620ea7022a..427f5b45c67f 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -332,3 +332,9 @@ Description: Give a way to attach REQ_META|FUA to data writes * REQ_META | REQ_FUA | * 5 | 4 | 3 | 2 | 1 | 0 | * Cold | Warm | Hot | Cold | Warm | Hot | + +What: /sys/fs/f2fs//iostat_period_ms +Date: April 2020 +Contact: "Daeho Jeong" +Description: Give a way to change iostat_period time. 3secs by default. + The new iostat trace gives stats gap given the period. -- cgit v1.2.3