[PATCH v2] multipath-tools: add info about the historical-service-time path selector to man page

* [PATCH v2] multipath-tools: add info about the historical-service-time path selector to man page
@ 2020-10-05 19:28 Xose Vazquez Perez
  2020-10-06  6:50 ` Martin Wilck
  2020-10-06 20:24 ` Gabriel Krisman Bertazi
  0 siblings, 2 replies; 3+ messages in thread
From: Xose Vazquez Perez @ 2020-10-05 19:28 UTC (permalink / raw)
  Cc: Xose Vazquez Perez, Khazhismel Kumykov, DM-DEVEL ML,
	Gabriel Krisman Bertazi, Martin Wilck

Just minimal info.

Cc: Khazhismel Kumykov <khazhy@google.com>
Cc: Gabriel Krisman Bertazi <krisman@collabora.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Benjamin Marzinski <bmarzins@redhat.com>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: DM-DEVEL ML <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
---
 multipath/multipath.conf.5 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 05a5e8ff..5e65cb93 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 5.8 kernel) Choose the path for the next bunch of IOs 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
 .
-- 
2.28.0

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