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2025-12-30 - 07:24
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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 Dec 30, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48011222210,3sleep0221rcuc/000:00:150
5102352560,1sleep20-21swapper/200:20:212
108761992421,1cyclictest0-21swapper/322:55:003
108761992220,1cyclictest0-21swapper/323:50:013
108761992017,1cyclictest0-21swapper/323:10:173
108761991916,1cyclictest0-21swapper/322:20:263
10876199183,11cyclictest530227-21turbostat00:40:013
10876199182,13cyclictest307652-21turbostat21:45:013
108761991815,1cyclictest0-21swapper/320:00:013
10876199181,13cyclictest383211-21taskset22:40:223
10876199181,13cyclictest219482-21chrt20:35:163
10876199181,13cyclictest200316-21chrt20:20:013
10876199172,12cyclictest320332-21turbostat21:55:013
108761991714,1cyclictest0-21swapper/323:20:143
108761991714,1cyclictest0-21swapper/320:55:233
10876199171,12cyclictest485979-21turbostat00:05:013
10876199171,12cyclictest131995-21taskset19:25:193
10876199170,14cyclictest422110-21sleep23:19:543
10876199170,13cyclictest167496-21taskset19:50:193
10876199170,12cyclictest282514-21taskset21:25:013
108761991613,1cyclictest0-21swapper/322:55:193
108761991613,1cyclictest0-21swapper/319:43:403
10876199161,12cyclictest511289-21turbostat00:25:013
10876199161,12cyclictest473517-21taskset23:55:043
10876199161,12cyclictest415598-21chrt23:07:403
10876199161,12cyclictest389787-21taskset22:45:243
10876199161,12cyclictest346198-21taskset22:15:103
10876199161,12cyclictest345627-21chrt22:11:263
10876199161,12cyclictest333057-21taskset22:02:243
10876199161,12cyclictest313703-21chrt21:46:243
10876199161,12cyclictest297319-21taskset21:35:193
10876199161,12cyclictest294691-21chrt21:32:063
10876199161,12cyclictest263008-21taskset21:05:493
10876199161,12cyclictest250961-21taskset21:00:153
10876199161,12cyclictest232317-21chrt20:45:183
10876199161,12cyclictest231651-21taskset20:44:293
10876199161,12cyclictest218600-21taskset20:30:233
10876199161,12cyclictest199829-21taskset20:17:073
10876199161,12cyclictest187846-21taskset20:10:153
10876199161,11cyclictest459640-21taskset23:40:223
10876199161,11cyclictest180757-21taskset20:00:453
10876199161,11cyclictest123207-21taskset19:15:253
10876199160,13cyclictest440762-21taskset23:25:233
10876199160,13cyclictest371102-21chrt22:33:373
10876199160,13cyclictest113865-21taskset19:10:203
1876602152,4sleep1187693-21apt-get20:10:141
10876199157,5cyclictest2883532sleep321:26:383
108761991514,0cyclictest0-21swapper/323:50:323
108761991513,1cyclictest0-21swapper/321:10:333
108761991512,1cyclictest0-21swapper/320:50:183
108761991512,1cyclictest0-21swapper/300:30:333
10876199151,11cyclictest504582-21taskset00:15:363
10876199151,11cyclictest492500-21taskset00:10:043
10876199151,11cyclictest377175-21taskset22:35:263
10876199151,11cyclictest359219-21taskset22:25:163
10876199151,11cyclictest337579-21taskset22:05:213
10876199151,11cyclictest212322-21taskset20:25:293
10876199151,11cyclictest161271-21taskset19:45:223
10876199151,11cyclictest149203-21sleep19:40:013
10876199150,12cyclictest452905-21taskset23:35:213
10876199150,12cyclictest408711-21chrt23:00:233
10876199150,12cyclictest322352-21chrt21:55:183
10876199150,12cyclictest275787-21chrt21:17:363
10876199150,12cyclictest187044-21chrt20:05:253
10876199150,12cyclictest142786-21taskset19:34:353
10876199150,11cyclictest129843-21chrt19:21:093
2087432140,1sleep0210701-21kthreadcore20:25:200
1717102140,6sleep1173644-21/usr/sbin/munin19:55:181
10876199141,10cyclictest511518-21taskset00:25:033
10876199140,12cyclictest491181-21taskset00:05:183
10876199140,11cyclictest447086-21taskset23:30:413
10876199140,11cyclictest447086-21taskset23:30:403
307598130,8rtkit-daemon130854-21irqcore19:25:170
307598120,8rtkit-daemon364538-21chrt22:25:341
307598120,7rtkit-daemon3256-21sendmail-mta19:31:450
307598120,3rtkit-daemon719-21lldpd23:22:271
5198492110,8sleep2521843-21cut00:30:192
4739582110,8sleep0474887-21grep23:55:190
4049932110,8sleep1406933-21tr23:00:181
4041412110,8sleep0404991-21grep23:00:170
307598110,7rtkit-daemon714-21snmpd22:38:101
307598110,7rtkit-daemon468-21systemd-logind23:31:441
307598110,7rtkit-daemon468-21systemd-logind23:31:441
307598110,7rtkit-daemon278065-21grep21:20:161
307598110,6rtkit-daemon241265-21kthreadcore20:50:171
307598110,5rtkit-daemon217-21plymouthd22:04:421
307598110,4rtkit-daemon217-21plymouthd22:22:291
2951812111,6sleep1295214-21apt-get21:35:131
2120902110,8sleep2212307-21users20:25:262
1795572110,1sleep00-21swapper/020:00:180
4672392100,7sleep0467395-21diskstats23:50:140
4622492100,7sleep0464182-21tr23:45:160
3977512103,5sleep2398445-21kthreadcore22:55:182
3214662100,7sleep2322351-21grep21:55:192
307598100,6rtkit-daemon217-21plymouthd20:35:030
307598100,5rtkit-daemon107778-21ntp_states19:05:222
307598100,2rtkit-daemon217-21plymouthd21:29:141
2949212100,7sleep00-21swapper/021:35:010
2825502103,5sleep0251321-21kworker/0:1+kacpid21:25:100
1215872100,7sleep2122787-21/usr/sbin/munin19:15:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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