12e86c6fa5
Currently we have following inconsistency between linuxptp and
ptp-notification app.
1) pmc_agent.cc: PMC polling interval (PMC_UPDATE_INTERVAL of 60
sec on pmc_agent_update)
2) ptp-notification app: 'overalltracker_context': {'holdover_seconds':
'15'}
In context of HA switchover, there is pmc polling in 60 sec interval
(pmc_agent_update uses PMC_UPDATE_INTERVAL i.e 60s ). This means when
primary ptp source lost, it would take 60 sec to switchover to secondary
clock.
On ptp-application app side, we have 'ptptracker_context':
{'holdover_seconds': 15} 'overalltracker_context': {'holdover_seconds':
'15'} With this, when the selected ptp source is lost more than 15 sec,
the ptp state and overall state would go holdover and then freerun.
For smooth transition, PMC_UPDATE_INTERVAL should be <<
holdover_seconds. This commit introduces configurable value for
PMC_UPDATE_INTERVAL with "phc2sys .. -p <int value [1, 3600]>",
and without configuration, the default value would be of 7 sec.
TEST PLAN:
PASS: deploy PTP with HA phy2sys parameter of "-p 60"
or with file global parameter "pmc_update_interval_sec 60"
stop primary ptp4l instance and check users.log to see
the "timeout reading pmc" in 60 secs.
PASS: deploy PTP with HA Phy2sys without parameter of "-p"
stop primary ptp4l instance and check users.log to see
the "timeout reading pmc" in 7 secs.
check HA switchover happens in 7 secs, and overall
state won't change from Locked to holdover/freerun.
Story: 2011370
Task: 52061
Change-Id: I8a9123b15acbbff41954db42822b9f501cd5f2c9
Signed-off-by: Tara Nath Subedi <tara.subedi@windriver.com>
31 lines
1015 B
Diff
31 lines
1015 B
Diff
From: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Mon, 31 May 2021 11:07:56 +0200
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Subject: [PATCH 05/63] clockcheck: Increase minimum interval.
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Increase the minimum check interval to 1 second to measure the frequency
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offset more accurately and with default configuration make false
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positives less likely due to a heavily overloaded system.
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Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
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Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
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[commit a082bcd700e4955ebaa00d7039bf4bce92048ac4 upstream]
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
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---
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clockcheck.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/clockcheck.c b/clockcheck.c
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index d0b4714..f0141be 100644
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--- a/clockcheck.c
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+++ b/clockcheck.c
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@@ -23,7 +23,7 @@
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#include "clockcheck.h"
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#include "print.h"
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-#define CHECK_MIN_INTERVAL 100000000
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+#define CHECK_MIN_INTERVAL 1000000000
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#define CHECK_MAX_FREQ 900000000
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struct clockcheck {
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