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From: Benjamin Marzinski <bmarzins@redhat.com>
To: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: device-mapper development <dm-devel@lists.linux.dev>,
	Martin Wilck <Martin.Wilck@suse.com>
Subject: [PATCH v2] multipathd: Set CPUWeight to 1000 and LimitRTPRIO to 10
Date: Mon, 15 Apr 2024 19:43:06 -0400	[thread overview]
Message-ID: <20240415234306.1984762-1-bmarzins@redhat.com> (raw)

If multipathd doesn't become a real time process, it was scheduled as a
normal process, without any priority increase. Bump up the CPUWeight so
that even as a normal process, it will still run with increased
priority.

If multipathd did become a real time process, it set itself to the
highest priority, which is excessive. A priority of 10 is plenty.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---

Notes:
    v2: Lowered LimitRTPRIO as suggested by Martin Wilck.

 multipathd/multipathd.service.in | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/multipathd/multipathd.service.in b/multipathd/multipathd.service.in
index 18bb367e..a63ddd9a 100644
--- a/multipathd/multipathd.service.in
+++ b/multipathd/multipathd.service.in
@@ -19,7 +19,8 @@ NotifyAccess=main
 ExecStart=/sbin/multipathd -d -s
 ExecReload=/sbin/multipathd reconfigure
 TasksMax=infinity
-LimitRTPRIO=infinity
+LimitRTPRIO=10
+CPUWeight=1000
 
 [Install]
 WantedBy=sysinit.target
-- 
2.43.0


             reply	other threads:[~2024-04-15 23:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-15 23:43 Benjamin Marzinski [this message]
2024-04-16  9:59 ` [PATCH v2] multipathd: Set CPUWeight to 1000 and LimitRTPRIO to 10 Martin Wilck

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