From e826d783993d596f8a4557f850eda24fe2a2ea5a Mon Sep 17 00:00:00 2001 From: Max Date: Fri, 9 Sep 2022 21:31:43 +0700 Subject: [PATCH] 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 --- contrib/systemd/osmo-bts-lc15.service | 4 +++- contrib/systemd/osmo-bts-oc2g.service | 4 +++- contrib/systemd/osmo-bts-sysmo.service | 4 +++- contrib/systemd/osmo-bts-trx.service | 4 +++- contrib/systemd/osmo-bts-virtual.service | 4 +++- 5 files changed, 15 insertions(+), 5 deletions(-) diff --git a/contrib/systemd/osmo-bts-lc15.service b/contrib/systemd/osmo-bts-lc15.service index 0266c9ad4..1fe2758fb 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 b0b1f7e24..fbf26081b 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 f297cfc82..2a6f71151 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 e73e7935b..bbfa99cfc 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 877181b71..54d0eb1ae 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