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2026-04-14 - 05:59
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Tue Apr 14, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1297781993330,1cyclictest0-21swapper/322:05:013
1297781993330,1cyclictest0-21swapper/320:21:163
1297781993027,1cyclictest0-21swapper/322:40:003
1297781992926,1cyclictest0-21swapper/322:55:003
1297781992724,1cyclictest0-21swapper/322:30:233
1297781992623,1cyclictest0-21swapper/322:30:013
174238722410,6sleep01647771-21kworker/u16:4-xprtiod00:14:560
1297781992421,1cyclictest0-21swapper/322:45:273
129778199241,17cyclictest1649349-21taskset23:15:003
1297781992219,1cyclictest0-21swapper/321:10:283
129778199221,16cyclictest1444414-21taskset21:00:173
1297781992210,8cyclictest16315472sleep323:00:233
129998210,7rtkit-daemon565-21rpcbind19:05:242
1297781992119,1cyclictest0-21swapper/300:00:013
1297781992118,1cyclictest0-21swapper/322:55:263
1297781992118,1cyclictest0-21swapper/322:15:143
1297781992118,1cyclictest0-21swapper/319:45:013
129778199211,15cyclictest1686769-21taskset23:36:053
1297781992018,1cyclictest0-21swapper/319:55:003
1297781992017,1cyclictest0-21swapper/320:35:173
129778199201,14cyclictest1750126-21taskset00:19:563
129778199201,14cyclictest1509054-21taskset21:42:593
129778199201,14cyclictest1455226-21taskset21:06:273
1297781991917,1cyclictest0-21swapper/323:20:263
1297781991916,1cyclictest0-21swapper/323:30:003
1297781991916,1cyclictest0-21swapper/320:00:253
1297781991916,1cyclictest0-21swapper/319:35:003
129778199191,14cyclictest1640244-21taskset23:06:103
129778199191,14cyclictest1335145-21taskset19:35:183
129778199191,14cyclictest1325370-21taskset19:26:373
129778199191,13cyclictest1517757-21taskset21:50:013
129778199191,13cyclictest1436603-21chrt20:55:123
17207452185,2sleep10-21swapper/100:00:181
15340652180,1sleep10-21swapper/122:00:171
1297781991816,1cyclictest0-21swapper/319:20:013
1297781991815,1cyclictest0-21swapper/300:21:093
129778199181,13cyclictest1779954-21taskset00:36:153
129778199181,13cyclictest1741361-21taskset00:11:533
129778199181,13cyclictest1710175-21taskset23:51:333
129778199181,13cyclictest1542515-21taskset22:05:163
129778199181,13cyclictest1493213-21taskset21:31:533
129778199181,13cyclictest1417299-21taskset20:40:093
129778199181,13cyclictest1304729-21taskset19:15:023
129778199181,13cyclictest1304729-21taskset19:15:023
129778199181,13cyclictest1303872-21taskset19:11:573
129778199181,12cyclictest1463485-21taskset21:15:053
129778199181,12cyclictest1463485-21taskset21:15:053
14891722176,7sleep21490851-21cut21:30:202
1297781991714,1cyclictest0-21swapper/300:00:013
1297781991713,1cyclictest0-21swapper/322:20:113
129778199171,13cyclictest1772576-21taskset00:32:303
129778199171,13cyclictest1702475-21taskset23:46:393
129778199171,13cyclictest1688413-21taskset23:40:103
129778199171,13cyclictest1672967-21taskset23:30:123
129778199171,13cyclictest1655868-21taskset23:16:253
129778199171,13cyclictest1602224-21taskset22:43:293
129778199171,13cyclictest1548835-21taskset22:10:093
129778199171,13cyclictest1532796-21taskset21:59:163
129778199171,13cyclictest1497372-21taskset21:35:173
129778199171,13cyclictest1485415-21taskset21:26:433
129778199171,13cyclictest1477703-21taskset21:21:543
129778199171,13cyclictest1477703-21taskset21:21:543
129778199171,13cyclictest1435995-21taskset20:51:073
129778199171,12cyclictest1404442-21taskset20:30:073
129778199171,12cyclictest1403240-21taskset20:25:223
129778199171,12cyclictest1384568-21taskset20:11:153
129778199171,12cyclictest1359847-21taskset19:55:153
129778199170,13cyclictest1429855-21taskset20:49:553
14072512161,8sleep01409114-21kthreadcore20:30:220
1297781991613,1cyclictest0-21swapper/300:25:123
129778199161,12cyclictest1733305-21taskset00:05:533
129778199161,12cyclictest1390914-21taskset20:15:283
129778199161,12cyclictest1377768-21taskset20:05:253
129778199161,11cyclictest1346734-21chrt19:45:133
129778199160,13cyclictest1524210-21taskset21:51:533
12924102160,2sleep30-21swapper/319:05:163
17810342150,1sleep20-21swapper/200:39:312
16470762151,5sleep11647114-21ntpq23:10:221
13263172150,12sleep21326770-21cut19:30:172
17727132141,3sleep21772717-21ssh00:32:542
16247342140,2sleep00-21swapper/022:56:220
15904372141,10sleep01592212-21tr22:35:210
13989652141,4sleep21399895-21cut20:25:182
129998140,10rtkit-daemon1601480-21ssh22:41:181
6881130,3low-memory-moni1339266-21dpkg-deb19:37:172
16080672131,9sleep11608149-21ls22:45:201
14433752134,6sleep11443544-21irqcore21:00:161
13464282130,10sleep21346620-21cut19:45:012
129998130,8rtkit-daemon1764467-21ssh00:26:332
6881120,2low-memory-moni1297388-21kworker/u16:1+kvfree_rcu_reclaim19:37:180
17256492121,8sleep21725653-21ssh00:01:112
15691692121,8sleep21569485-21missed_timers22:20:202
15565792120,2sleep00-21swapper/022:15:130
15547632120,9sleep21554769-21ssh22:10:292
15404892121,3sleep0222-21plymouthd22:04:060
13855752120,8sleep01386348-21sed20:15:170
129998120,7rtkit-daemon1417699-21hddtemp_smartct20:40:152
16858672111,7sleep21685953-21ntpq23:35:212
16576312110,8sleep01657837-21smartctl23:20:150
16520732110,7sleep11653746-21grep23:15:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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