Increase RR scheduler priority to 20, to avoid dropped bursts

This has been fixed in osmo-bts too.

If frames are not deliverd fast enough to the DSP, bursts will get
dropped. The osmo-bts-sysmo process must have priority over other
processes, so it can deliver frames fast enough.

Related: OS#6199
Change-Id: Ifa2c36bc0975e89d21b6fb2fc49db6077e5207da
---
M contrib/systemd/osmo-pcu.service
1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/contrib/systemd/osmo-pcu.service b/contrib/systemd/osmo-pcu.service
index f688d7f..521f6fc 100644
--- a/contrib/systemd/osmo-pcu.service
+++ b/contrib/systemd/osmo-pcu.service
@@ -13,7 +13,7 @@
 # CPU scheduling policy:
 CPUSchedulingPolicy=rr
 # For real-time scheduling policies an integer between 1 (lowest priority) and 99 (highest priority):
-CPUSchedulingPriority=11
+CPUSchedulingPriority=20
 # See sched(7) for further details on real-time policies and priorities
 
 [Install]

