pespin has uploaded a new patch set (#5) to the change originally created by 
daniel. ( https://gerrit.osmocom.org/c/osmo-bts/+/17766 )

Change subject: osmo-bts-trx: Use much lower clock advance values towards PCU 
and TRX
......................................................................

osmo-bts-trx: Use much lower clock advance values towards PCU and TRX

osmotrx fn-advance (which is the clock_advance variable here) and
osmotrx rts-advance together make up the minimum delay the BTS can react
to a channel request, etc.

The default of 20 are around 92ms which is clearly too much. With
modern hardware and using SCHED_RR a lower value should not be an issue.

See OS#4487 for some related measurements on more CPU-limited devices like a
LimeNet-micro3.

Fixes: OS#4487
Fixes: SYS#4885
Related: SYS#4881
Change-Id: I7da3d0948f38e12342fb714b29f8edc5e9d0933d
---
M doc/manuals/chapters/bts-models.adoc
M src/osmo-bts-trx/main.c
2 files changed, 4 insertions(+), 5 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/66/17766/5
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: I7da3d0948f38e12342fb714b29f8edc5e9d0933d
Gerrit-Change-Number: 17766
Gerrit-PatchSet: 5
Gerrit-Owner: daniel <dwillm...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillm...@sysmocom.de>
Gerrit-Reviewer: dexter <pma...@sysmocom.de>
Gerrit-Reviewer: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: neels <nhofm...@sysmocom.de>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: newpatchset

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