device-mapper-multipath/SOURCES/0125-multipath-add-historic...

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 15 Nov 2022 09:01:36 -0600
Subject: [PATCH] multipath: add historical-service-time to the man page
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/multipath.conf.5 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index cb07a62c..d8a98435 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -205,6 +205,11 @@ of outstanding I/O to the path.
(Since 2.6.31 kernel) Choose the path for the next bunch of I/O based on the amount
of outstanding I/O to the path and its relative throughput.
.TP
+.I "historical-service-time 0"
+(Since 4.18.0-305.3.el8 kernel) Choose the path for the next bunch of I/O based
+on the estimation of future service time based on the history of previous I/O
+submitted to each path.
+.TP
The default is: \fBservice-time 0\fR
.RE
.