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2025-12-19 - 19:25
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot4s.osadl.org (updated Fri Dec 19, 2025 12:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
1361471994341,1cyclictest1453919-21fwupd08:38:112
1361471994137,3cyclictest1625907-21kworker/u8:2+flush-259:012:35:002
1361460994035,4cyclictest1346122-21kworker/u8:1+flush-259:008:15:000
1361471993934,3cyclictest1552777-21latency_hist10:15:002
1361467993731,4cyclictest1625867-21latency_hist11:25:011
1361460993733,3cyclictest1443807-21kworker/u8:0+events_unbound08:38:110
1361467993630,4cyclictest252-21systemd-journal11:40:001
1361467993629,5cyclictest1407757-21latency_hist07:55:001
1361471993429,3cyclictest1459520-21base6408:45:002
1361467993429,4cyclictest1692864-21kworker/u8:4+flush-259:012:40:001
1361476993128,2cyclictest1428316-21kworker/u8:2+flush-259:008:40:193
1361460993124,5cyclictest1521758-21latency_hist09:45:010
1361467993027,2cyclictest1340559-21kworker/u8:0+flush-259:007:15:261
1361460993025,4cyclictest1382037-21kworker/u8:0+flush-259:007:40:000
1361460993024,4cyclictest1408187-21diskstats07:55:130
1361476992925,3cyclictest1604886-21kworker/u8:2+flush-259:011:05:233
1361467992924,3cyclictest1532330-21/usr/sbin/munin09:55:141
1361467992924,3cyclictest1532330-21/usr/sbin/munin09:55:131
1361460992924,3cyclictest1382037-21kworker/u8:0+events_unbound07:40:230
1361460992924,3cyclictest1382037-21kworker/u8:0+events_unbound07:40:220
1361460992922,5cyclictest1500209-21ntpq09:20:210
136146099291,26cyclictest1402616-21true07:50:000
1361476992824,3cyclictest1470336-21kworker/u8:1+flush-259:010:00:003
1361476992824,3cyclictest1470336-21kworker/u8:1+flush-259:009:59:593
1361476992821,4cyclictest1532091-21latency_hist09:55:003
1361460992825,2cyclictest1428316-21kworker/u8:2+events_unbound09:10:200
1361460992824,3cyclictest1656773-21kworker/u8:1+flush-259:012:15:210
1361460992824,3cyclictest1656773-21kworker/u8:1+flush-259:012:15:210
1361460992723,3cyclictest1620471-21kworker/u8:1+flush-259:011:20:270
1361460992721,4cyclictest1672452-21/usr/sbin/munin12:10:130
1361471992622,3cyclictest1625907-21kworker/u8:2+flush-259:011:55:002
1361471992621,4cyclictest1453928-21kworker/u8:3+flush-259:008:45:242
1361467992620,4cyclictest1442943-21ntpq08:25:211
1361467992618,5cyclictest1579006-21diskstats10:40:141
1361471992521,3cyclictest1656773-21kworker/u8:1+flush-259:012:10:002
1361471992518,5cyclictest1588035-21ntpq10:45:212
1361460992522,2cyclictest1532318-21kworker/u8:0+flush-259:010:05:210
1361460992522,2cyclictest1532318-21kworker/u8:0+flush-259:010:05:200
136146099251,22cyclictest490-21dbus-daemon12:30:000
1361476992419,3cyclictest1470336-21kworker/u8:1+flush-259:010:45:003
1361476992419,3cyclictest1412897-21kworker/u8:3+flush-259:008:00:183
1361467992418,4cyclictest1526914-21latency_hist09:50:011
1361460992420,3cyclictest1636436-21apt-get11:35:120
1361460992416,5cyclictest252-21systemd-journal10:50:000
1361476992318,3cyclictest252-21systemd-journal10:14:593
1361476992318,3cyclictest1470336-21kworker/u8:1+events_unbound10:00:163
1361471992319,3cyclictest1656773-21kworker/u8:1+flush-259:012:00:242
1361467992315,5cyclictest1614718-21ntpq11:10:241
1361460992317,4cyclictest1470336-21kworker/u8:1+events_unbound09:35:210
1361476992218,3cyclictest1610688-21kworker/u8:0+flush-259:011:45:243
1361476992218,3cyclictest1480670-21apt-get09:05:123
1361471992218,3cyclictest1620471-21kworker/u8:1+flush-259:011:25:192
1361467992218,3cyclictest1454396-21apt-get08:40:121
1361467992217,3cyclictest1361663-21apt-get07:10:121
1361467992216,5cyclictest1515737-21ntpq09:35:211
1361460992219,2cyclictest1552793-21kworker/u8:3+flush-259:010:15:200
1361460992218,3cyclictest1340559-21kworker/u8:0+events_unbound07:10:220
1361460992217,3cyclictest1656773-21kworker/u8:1+events_unbound12:05:190
1361460992217,3cyclictest1626300-21diskstats11:25:170
1361471992116,3cyclictest509-21rs:main2
1361471992116,3cyclictest252-21systemd-journal10:54:092
1361460992117,3cyclictest1532318-21kworker/u8:0+flush-259:010:30:200
1361460992117,3cyclictest1443807-21kworker/u8:0+events_unbound09:00:250
1361460992115,4cyclictest1651631-21latency_hist11:50:010
1361460992114,5cyclictest252-21systemd-journal08:45:020
1361460992114,5cyclictest1418465-21diskstats08:05:150
1361476992017,2cyclictest1687679-21kworker/u8:1+events_unbound12:30:143
1361476992016,3cyclictest509-21rs:main3
1361476992015,4cyclictest1346122-21kworker/u8:1+flush-259:007:40:173
1361476992015,4cyclictest1346122-21kworker/u8:1+flush-259:007:40:173
1361476992014,4cyclictest252-21systemd-journal10:05:113
1361476992014,4cyclictest252-21systemd-journal10:05:113
1361476992014,4cyclictest1656773-21kworker/u8:1+events_unbound11:55:223
1361476992014,4cyclictest1475277-21latency_hist09:00:013
1361471992015,3cyclictest1620998-21apt-get11:20:132
1361467992016,3cyclictest1423014-21kworker/u8:0+flush-259:008:15:141
1361467992016,2cyclictest1495962-21kworker/u8:3+events_unbound09:55:001
1361467992014,4cyclictest1485589-21latency_hist09:10:011
1361467992014,4cyclictest1438639-21latency_hist08:25:011
1361460992017,2cyclictest1346122-21kworker/u8:1+flush-259:007:25:200
1361460992016,3cyclictest1610688-21kworker/u8:0+events_unbound11:50:220
1361460992016,3cyclictest1604886-21kworker/u8:2+events_unbound11:14:100
1361460992015,4cyclictest1610688-21kworker/u8:0+events_unbound11:30:200
1361460992014,4cyclictest1666169-21ntpq12:00:220
1361476991916,2cyclictest1453919-21fwupd08:38:113
1361476991915,3cyclictest1656773-21kworker/u8:1+flush-259:012:15:183
1361476991915,3cyclictest1656773-21kworker/u8:1+flush-259:012:15:173
1361476991915,3cyclictest1346122-21kworker/u8:1+flush-259:007:30:213
1361471991914,3cyclictest252-21systemd-journal07:55:002
1361467991913,4cyclictest1656745-21latency_hist11:55:011
1361460991916,2cyclictest1495962-21kworker/u8:3+events_unbound09:50:000
1361460991915,3cyclictest1428316-21kworker/u8:2+events_unbound08:20:250
1361460991915,3cyclictest1372389-21irqcore07:20:150
1361460991914,3cyclictest1661885-21cron11:59:590
1361476991815,2cyclictest1600986-21kthreadcore11:00:183
1361476991814,3cyclictest252-21systemd-journal07:50:003
1361476991814,3cyclictest1667050-21kworker/u8:0+flush-259:012:05:003
1361476991810,6cyclictest252-21systemd-journal10:20:003
1361471991815,2cyclictest1371725-21kworker/u8:2+flush-259:008:05:152
1361471991813,3cyclictest1428316-21kworker/u8:2+events_unbound09:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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