msuraev has submitted this change. (
https://gerrit.osmocom.org/c/osmo-bts/+/29306 )
Change subject: Document realtime options in .service units
......................................................................
Document realtime options in .service units
It's not immediately obvious what numeric values mean for CPU scheduling policy.
Let's document this and add doc reference.
Related: OS#4107
Change-Id: Ib047762a336851e6205d77c83068a99d8a868e8b
---
M contrib/systemd/osmo-bts-lc15.service
M contrib/systemd/osmo-bts-oc2g.service
M contrib/systemd/osmo-bts-sysmo.service
M contrib/systemd/osmo-bts-trx.service
M contrib/systemd/osmo-bts-virtual.service
5 files changed, 15 insertions(+), 5 deletions(-)
Approvals:
laforge: Looks good to me, but someone else must approve
dexter: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/contrib/systemd/osmo-bts-lc15.service
b/contrib/systemd/osmo-bts-lc15.service
index 0266c9a..1fe2758 100644
--- a/contrib/systemd/osmo-bts-lc15.service
+++ b/contrib/systemd/osmo-bts-lc15.service
@@ -11,9 +11,11 @@
RestartSec=2
RestartPreventExitStatus=1
-# The msg queues must be read fast enough
+# CPU scheduling policy:
CPUSchedulingPolicy=rr
+# For real-time scheduling policies an integer between 1 (lowest priority) and 99
(highest priority):
CPUSchedulingPriority=1
+# See sched(7) for further details on real-time policies and priorities
[Install]
WantedBy=multi-user.target
diff --git a/contrib/systemd/osmo-bts-oc2g.service
b/contrib/systemd/osmo-bts-oc2g.service
index b0b1f7e..fbf2608 100644
--- a/contrib/systemd/osmo-bts-oc2g.service
+++ b/contrib/systemd/osmo-bts-oc2g.service
@@ -11,9 +11,11 @@
RestartSec=2
RestartPreventExitStatus=1
-# The msg queues must be read fast enough
+# CPU scheduling policy:
CPUSchedulingPolicy=rr
+# For real-time scheduling policies an integer between 1 (lowest priority) and 99
(highest priority):
CPUSchedulingPriority=1
+# See sched(7) for further details on real-time policies and priorities
[Install]
WantedBy=multi-user.target
diff --git a/contrib/systemd/osmo-bts-sysmo.service
b/contrib/systemd/osmo-bts-sysmo.service
index f297cfc..2a6f711 100644
--- a/contrib/systemd/osmo-bts-sysmo.service
+++ b/contrib/systemd/osmo-bts-sysmo.service
@@ -13,9 +13,11 @@
RestartSec=2
RestartPreventExitStatus=1
-# The msg queues must be read fast enough
+# CPU scheduling policy:
CPUSchedulingPolicy=rr
+# For real-time scheduling policies an integer between 1 (lowest priority) and 99
(highest priority):
CPUSchedulingPriority=1
+# See sched(7) for further details on real-time policies and priorities
[Install]
WantedBy=multi-user.target
diff --git a/contrib/systemd/osmo-bts-trx.service b/contrib/systemd/osmo-bts-trx.service
index e73e793..bbfa99c 100644
--- a/contrib/systemd/osmo-bts-trx.service
+++ b/contrib/systemd/osmo-bts-trx.service
@@ -9,9 +9,11 @@
Restart=always
RestartSec=2
-# Let it process messages quickly enough
+# CPU scheduling policy:
CPUSchedulingPolicy=rr
+# For real-time scheduling policies an integer between 1 (lowest priority) and 99
(highest priority):
CPUSchedulingPriority=1
+# See sched(7) for further details on real-time policies and priorities
[Install]
WantedBy=multi-user.target
diff --git a/contrib/systemd/osmo-bts-virtual.service
b/contrib/systemd/osmo-bts-virtual.service
index 877181b..54d0eb1 100644
--- a/contrib/systemd/osmo-bts-virtual.service
+++ b/contrib/systemd/osmo-bts-virtual.service
@@ -9,9 +9,11 @@
Restart=always
RestartSec=2
-# Let it process messages quickly enough
+# CPU scheduling policy:
CPUSchedulingPolicy=rr
+# For real-time scheduling policies an integer between 1 (lowest priority) and 99
(highest priority):
CPUSchedulingPriority=1
+# See sched(7) for further details on real-time policies and priorities
[Install]
WantedBy=multi-user.target
--
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ib047762a336851e6205d77c83068a99d8a868e8b
Gerrit-Change-Number: 29306
Gerrit-PatchSet: 2
Gerrit-Owner: msuraev <msuraev(a)sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: dexter <pmaier(a)sysmocom.de>
Gerrit-Reviewer: laforge <laforge(a)osmocom.org>
Gerrit-Reviewer: msuraev <msuraev(a)sysmocom.de>
Gerrit-MessageType: merged