From 7a6b6d5a5ffe9bae75bf130e2d82a34c39dbee65 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Tue, 8 Jun 2021 16:43:41 -0500
Subject: [PATCH] cifs: enable extended stats by default
CONFIG_CIFS_STATS2 can be very useful since it shows
latencies by command, and allows enabling the slow response
dynamic tracepoint which can be useful to identify
performance problems.
For example:
Total time spent processing by command. Time units are jiffies (1000 per second)
SMB3 CMD Number Total Time Fastest Slowest
-------- ------ ---------- ------- -------
0 1 2 2 2
1 2 6 2 4
2 0 0 0 0
3 4 11 2 4
4 2 16 5 11
5 4546 34104 2 487
6 4421 32901 2 487
7 0 0 0 0
8 695 2781 2 39
9 391 1708 2 27
10 0 0 0 0
11 4 6 1 2
12 0 0 0 0
13 0 0 0 0
14 3887 17696 0 128
15 0 0 0 0
16 1471 9950 1 487
17 169 2695 9 116
18 80 381 2 10
1 2 6 2 4
2 0 0 0 0
3 4 11 2 4
4 2 16 5 11
5 4546 34104 2 487
6 4421 32901 2 487
7 0 0 0 0
8 695 2781 2 39
9 391 1708 2 27
10 0 0 0 0
11 4 6 1 2
12 0 0 0 0
13 0 0 0 0
14 3887 17696 0 128
15 0 0 0 0
16 1471 9950 1 487
17 169 2695 9 116
18 80 381 2 10
Signed-off-by: Steve French <stfrench@microsoft.com>
---
fs/cifs/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
@@ -59,6 +59,7 @@ config CIFS
config CIFS_STATS2
bool "Extended statistics"
depends on CIFS
+ default y
help
Enabling this option will allow more detailed statistics on SMB
request timing to be displayed in /proc/fs/cifs/DebugData and also
@@ -67,8 +68,7 @@ config CIFS_STATS2
for more details. These additional statistics may have a minor effect
on performance and memory utilization.
- Unless you are a developer or are doing network performance analysis
- or tuning, say N.
+ If unsure, say Y.
config CIFS_ALLOW_INSECURE_LEGACY
bool "Support legacy servers which use less secure dialects"
--
2.30.2