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authorMax <msuraev@sysmocom.de>2022-09-09 21:31:43 +0700
committermsuraev <msuraev@sysmocom.de>2022-09-16 01:16:29 +0000
commite826d783993d596f8a4557f850eda24fe2a2ea5a (patch)
treecee2f4c6367b545caf0de66c74950d1b99720a85 /contrib/systemd
parent9b7a48421c84c3d055af8bd680ebbe24f87ee8b2 (diff)
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
Diffstat (limited to 'contrib/systemd')
-rw-r--r--contrib/systemd/osmo-bts-lc15.service4
-rw-r--r--contrib/systemd/osmo-bts-oc2g.service4
-rw-r--r--contrib/systemd/osmo-bts-sysmo.service4
-rw-r--r--contrib/systemd/osmo-bts-trx.service4
-rw-r--r--contrib/systemd/osmo-bts-virtual.service4
5 files changed, 15 insertions, 5 deletions
diff --git a/contrib/systemd/osmo-bts-lc15.service b/contrib/systemd/osmo-bts-lc15.service
index 0266c9ad..1fe2758f 100644
--- a/contrib/systemd/osmo-bts-lc15.service
+++ b/contrib/systemd/osmo-bts-lc15.service
@@ -11,9 +11,11 @@ Restart=always
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 b0b1f7e2..fbf26081 100644
--- a/contrib/systemd/osmo-bts-oc2g.service
+++ b/contrib/systemd/osmo-bts-oc2g.service
@@ -11,9 +11,11 @@ Restart=always
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 f297cfc8..2a6f7115 100644
--- a/contrib/systemd/osmo-bts-sysmo.service
+++ b/contrib/systemd/osmo-bts-sysmo.service
@@ -13,9 +13,11 @@ Restart=always
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 e73e7935..bbfa99cf 100644
--- a/contrib/systemd/osmo-bts-trx.service
+++ b/contrib/systemd/osmo-bts-trx.service
@@ -9,9 +9,11 @@ WorkingDirectory=%S/osmocom
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 877181b7..54d0eb1a 100644
--- a/contrib/systemd/osmo-bts-virtual.service
+++ b/contrib/systemd/osmo-bts-virtual.service
@@ -9,9 +9,11 @@ WorkingDirectory=%S/osmocom
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