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2026-03-27 - 08:03
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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
Characteristics of the highest latencies:
System rack1slot1.osadl.org (updated Fri Mar 27, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277362230157,24sleep20-21swapper/219:09:392
274892217161,44sleep30-21swapper/319:06:273
275122212152,46sleep10-21swapper/119:06:451
276722204148,42sleep00-21swapper/019:08:490
112302740,0sleep10-21swapper/120:45:211
39892650,0sleep10-21swapper/123:05:141
181542180,0sleep121-21ksoftirqd/100:05:191
27865991413,1cyclictest28-21ksoftirqd/223:19:362
27865991413,1cyclictest28-21ksoftirqd/221:27:332
27865991313,0cyclictest28-21ksoftirqd/222:35:192
27865991312,1cyclictest28-21ksoftirqd/223:36:362
27873991210,1cyclictest35-21ksoftirqd/319:55:013
27873991210,1cyclictest35-21ksoftirqd/300:15:133
27865991211,1cyclictest28-21ksoftirqd/222:24:112
27865991211,1cyclictest28-21ksoftirqd/222:12:412
27865991210,1cyclictest28-21ksoftirqd/221:55:002
100332120,0sleep20-21swapper/200:36:182
2787399119,1cyclictest35-21ksoftirqd/323:20:173
2786599119,1cyclictest28-21ksoftirqd/219:55:022
2786599119,1cyclictest28-21ksoftirqd/200:15:132
27865991111,0cyclictest28-21ksoftirqd/222:51:092
27865991110,1cyclictest28-21ksoftirqd/221:56:482
27865991110,1cyclictest28-21ksoftirqd/221:35:202
2784699119,1cyclictest9-21ksoftirqd/000:19:590
2784699111,5cyclictest4694-21perf22:25:000
2787399109,1cyclictest35-21ksoftirqd/323:05:153
2787399109,1cyclictest35-21ksoftirqd/322:30:163
2787399109,1cyclictest35-21ksoftirqd/322:00:153
2787399109,1cyclictest35-21ksoftirqd/320:00:003
2787399108,1cyclictest35-21ksoftirqd/300:15:003
2787399108,1cyclictest28515-21diskstats22:55:143
2786599109,1cyclictest28-21ksoftirqd/223:20:162
2786599109,1cyclictest28-21ksoftirqd/222:07:022
2786599109,1cyclictest28-21ksoftirqd/221:20:142
2786599109,1cyclictest28-21ksoftirqd/200:20:152
2786599109,1cyclictest28-21ksoftirqd/200:10:132
2786599108,1cyclictest28-21ksoftirqd/222:30:152
2786599108,1cyclictest28-21ksoftirqd/200:30:192
27865991010,0cyclictest28-21ksoftirqd/223:27:452
27865991010,0cyclictest28-21ksoftirqd/219:55:002
2784699109,1cyclictest9-21ksoftirqd/000:30:120
2784699102,4cyclictest9566-21latency_hist20:45:000
2784699102,4cyclictest21307-21diskmemload00:14:590
26292100,0sleep021307-21diskmemload00:27:050
278739999,0cyclictest35-21ksoftirqd/323:55:173
278739999,0cyclictest35-21ksoftirqd/300:20:143
278739998,1cyclictest35-21ksoftirqd/323:40:173
278739998,1cyclictest35-21ksoftirqd/322:50:013
278739998,1cyclictest35-21ksoftirqd/322:30:003
278739998,1cyclictest35-21ksoftirqd/300:00:113
278739998,0cyclictest35-21ksoftirqd/322:50:163
278739997,1cyclictest35-21ksoftirqd/323:45:113
278739997,1cyclictest35-21ksoftirqd/323:25:123
278739997,1cyclictest35-21ksoftirqd/322:35:163
278739996,2cyclictest707-21snmpd19:48:123
278659998,1cyclictest28-21ksoftirqd/223:55:192
278659998,1cyclictest28-21ksoftirqd/222:55:162
278659998,1cyclictest28-21ksoftirqd/222:00:122
278659998,1cyclictest28-21ksoftirqd/221:40:102
278659998,1cyclictest28-21ksoftirqd/220:55:132
278659998,1cyclictest28-21ksoftirqd/220:25:182
278659998,1cyclictest17417-21ssh22:40:162
278659997,1cyclictest28-21ksoftirqd/222:45:162
278659997,1cyclictest28-21ksoftirqd/222:25:122
278659997,1cyclictest28-21ksoftirqd/221:15:112
278659997,1cyclictest28-21ksoftirqd/220:10:132
278659997,1cyclictest28-21ksoftirqd/219:20:112
278659997,1cyclictest28-21ksoftirqd/200:05:172
278469992,1cyclictest26883-21wc23:35:110
278739988,0cyclictest35-21ksoftirqd/323:15:193
278739988,0cyclictest35-21ksoftirqd/321:40:203
278739988,0cyclictest35-21ksoftirqd/321:22:513
278739988,0cyclictest35-21ksoftirqd/320:50:183
278739988,0cyclictest35-21ksoftirqd/320:10:133
278739988,0cyclictest35-21ksoftirqd/319:14:563
278739987,1cyclictest35-21ksoftirqd/322:40:173
278739987,1cyclictest35-21ksoftirqd/321:35:193
278739987,1cyclictest35-21ksoftirqd/300:07:553
278739986,1cyclictest707-21snmpd23:13:243
278739986,1cyclictest707-21snmpd23:00:283
278739986,1cyclictest707-21snmpd20:24:373
278739986,1cyclictest35-21ksoftirqd/323:35:123
278739986,1cyclictest35-21ksoftirqd/322:19:593
278739980,6cyclictest0-21swapper/321:25:103
278739980,2cyclictest0-21swapper/319:15:103
278659987,1cyclictest28-21ksoftirqd/223:45:102
278659987,1cyclictest28-21ksoftirqd/223:08:062
278659987,1cyclictest28-21ksoftirqd/221:30:182
278659987,1cyclictest28-21ksoftirqd/220:50:192
278659987,1cyclictest28-21ksoftirqd/220:40:102
278659987,1cyclictest28-21ksoftirqd/200:00:142
278659986,1cyclictest61650irq/122-eno123:50:122
278659986,1cyclictest61650irq/122-eno121:10:122
278659986,1cyclictest28-21ksoftirqd/223:40:372
278659986,1cyclictest28-21ksoftirqd/223:30:132
278659986,1cyclictest28-21ksoftirqd/223:11:232
278659986,1cyclictest28-21ksoftirqd/221:49:032
278659985,1cyclictest28-21ksoftirqd/219:30:182
278659980,0cyclictest21307-21diskmemload00:25:212
278469986,1cyclictest9143-21ssh23:10:570
278469986,1cyclictest707-21snmpd22:10:210
278469986,1cyclictest707-21snmpd21:36:180
278469986,1cyclictest707-21snmpd19:51:050
278469986,1cyclictest1537-21ssh23:01:110
278469985,2cyclictest707-21snmpd22:09:180
278469982,5cyclictest8825-21latency_hist21:34:590
278469982,5cyclictest16977-21date00:05:010
278469980,7cyclictest2849-21sed23:45:150
278469980,7cyclictest2431-21dump-pmu-power20:29:590
278469980,4cyclictest12385-21perf22:34:590
278469980,1cyclictest10870-21ssh00:38:330
278739977,0cyclictest35-21ksoftirqd/321:15:193
278739977,0cyclictest35-21ksoftirqd/321:04:563
278739977,0cyclictest35-21ksoftirqd/319:25:123
278739976,1cyclictest35-21ksoftirqd/322:20:163
278739976,1cyclictest35-21ksoftirqd/322:06:383
278739976,1cyclictest35-21ksoftirqd/320:55:123
278739976,1cyclictest35-21ksoftirqd/320:45:163
278739976,1cyclictest35-21ksoftirqd/320:40:113
278739976,1cyclictest35-21ksoftirqd/320:25:213
278739976,1cyclictest35-21ksoftirqd/320:05:203
278739975,1cyclictest8143-21ssh23:52:113
278739975,1cyclictest707-21snmpd23:30:393
278739975,1cyclictest707-21snmpd20:31:423
278739975,1cyclictest707-21snmpd19:54:273
278739975,1cyclictest4948-21cat00:30:163
278739975,1cyclictest35-21ksoftirqd/321:30:183
278739975,1cyclictest35-21ksoftirqd/321:10:113
278739975,1cyclictest32547-21ssh00:25:013
278739975,1cyclictest20049-21cat21:05:143
278739970,4cyclictest7874-21apt-get00:35:123
278739970,3cyclictest0-21swapper/321:57:203
278659977,0cyclictest28-21ksoftirqd/221:00:172
278659976,1cyclictest7447-21kworker/2:223:00:122
278659976,1cyclictest7447-21kworker/2:220:35:122
278659976,1cyclictest7447-21kworker/2:219:10:112
278659976,1cyclictest28-21ksoftirqd/222:15:132
278659976,1cyclictest28-21ksoftirqd/220:30:112
278659976,1cyclictest28-21ksoftirqd/220:15:162
278659976,1cyclictest28-21ksoftirqd/220:05:192
278659976,1cyclictest28-21ksoftirqd/220:00:132
278659976,1cyclictest28-21ksoftirqd/219:40:012
278659976,1cyclictest28-21ksoftirqd/219:35:162
278659975,1cyclictest7447-21kworker/2:220:45:132
278659975,1cyclictest7447-21kworker/2:219:25:112
278659975,1cyclictest28-21ksoftirqd/219:15:142
278519971,4cyclictest0-21swapper/120:30:121
278519970,4cyclictest0-21swapper/122:08:521
278519970,3cyclictest0-21swapper/121:25:101
278519970,1cyclictest0-21swapper/122:47:581
278519970,1cyclictest0-21swapper/121:52:551
278519970,1cyclictest0-21swapper/119:51:331
278519970,0cyclictest0-21swapper/121:09:561
278469976,1cyclictest733-21sshd22:47:160
278469976,1cyclictest707-21snmpd22:55:130
278469976,1cyclictest707-21snmpd21:02:110
278469976,1cyclictest20308-21sensors23:25:180
278469976,1cyclictest19197-21ssh22:42:520
278469975,1cyclictest707-21snmpd21:05:370
278469975,1cyclictest707-21snmpd20:35:010
278469975,1cyclictest707-21snmpd20:03:490
278469975,1cyclictest30761-21awk21:20:190
278469975,1cyclictest0-21swapper/020:10:130
278469974,0cyclictest21307-21diskmemload21:28:040
278469972,2cyclictest21307-21diskmemload00:08:380
278469971,5cyclictest5890-21ssh23:50:120
278469971,3cyclictest0-21swapper/022:25:130
278469971,3cyclictest0-21swapper/000:20:190
278469970,6cyclictest32248-21ssh23:40:280
278469970,6cyclictest23772-21expr20:05:160
278469970,6cyclictest23457-21ssh22:00:120
278469970,6cyclictest19518-21ntp_states19:55:170
278469970,6cyclictest17106-21ssh21:45:310
278469970,6cyclictest14524-21apt-get23:20:010
278469970,6cyclictest13652-21/usr/sbin/munin21:40:120
278469970,6cyclictest10642-21apt-get19:40:010
278469970,6cyclictest0-21swapper/023:05:140
278469970,3cyclictest21307-21diskmemload21:55:240
278469970,2cyclictest240-21systemd-journal23:30:000
278469970,1cyclictest26132-21perl21:15:130
278469970,1cyclictest24718-21ssh21:13:570
278469970,1cyclictest14538-21ssh22:35:410
278469970,1cyclictest14303-21ssh23:19:280
278469970,1cyclictest11553-1kworker/u9:123:57:150
278469970,1cyclictest0-21swapper/022:50:120
278469970,1cyclictest0-21swapper/020:50:130
278469970,1cyclictest0-21swapper/020:20:160
278469970,1cyclictest0-21swapper/019:30:410
278739965,1cyclictest17520-21ssh21:46:363
278739964,1cyclictest707-21snmpd20:36:493
278739964,1cyclictest35-21ksoftirqd/319:39:593
278739964,1cyclictest29417-21ssh22:10:343
278739964,1cyclictest19284-21ssh21:50:403
278739963,2cyclictest28742-21grep20:15:163
278739960,1cyclictest0-21swapper/319:40:003
278659966,0cyclictest28-21ksoftirqd/219:45:102
278659965,1cyclictest28-21ksoftirqd/220:20:222
278659964,1cyclictest28-21ksoftirqd/221:05:152
278519966,0cyclictest0-21swapper/122:25:261
278519961,4cyclictest203-21jbd2/sda2-821:15:541
278519961,4cyclictest0-21swapper/121:24:591
278519961,3cyclictest0-21swapper/100:15:191
278519960,6cyclictest0-21swapper/123:51:461
278519960,6cyclictest0-21swapper/123:33:361
278519960,6cyclictest0-21swapper/123:25:131
278519960,6cyclictest0-21swapper/123:24:211
278519960,6cyclictest0-21swapper/122:20:081
278519960,6cyclictest0-21swapper/120:59:401
278519960,6cyclictest0-21swapper/120:51:261
278519960,6cyclictest0-21swapper/120:12:581
278519960,6cyclictest0-21swapper/119:28:271
278519960,6cyclictest0-21swapper/100:10:431
278519960,5cyclictest0-21swapper/119:55:561
278519960,4cyclictest0-21swapper/123:39:421
278519960,2cyclictest0-21swapper/100:24:591
278519960,0cyclictest0-21swapper/122:30:211
278469965,1cyclictest9-21ksoftirqd/019:37:240
278469963,1cyclictest548-21systemd-logind20:55:200
278469960,6cyclictest0-21swapper/021:50:100
278469960,6cyclictest0-21swapper/019:25:170
278469960,4cyclictest0-21swapper/019:20:090
278469960,2cyclictest0-21swapper/019:15:120
278469960,0cyclictest21307-21diskmemload22:16:070
278469960,0cyclictest0-21swapper/019:45:140
278469960,0cyclictest0-21swapper/019:10:110
278739955,0cyclictest35-21ksoftirqd/319:20:133
278739953,1cyclictest6419-21cut19:30:133
278519955,0cyclictest0-21swapper/100:25:481
278519950,5cyclictest0-21swapper/123:57:581
278519950,5cyclictest0-21swapper/122:01:191
278519950,5cyclictest0-21swapper/121:49:441
278519950,5cyclictest0-21swapper/121:40:261
278519950,5cyclictest0-21swapper/121:04:221
278519950,5cyclictest0-21swapper/120:20:171
278519950,5cyclictest0-21swapper/120:15:171
278519950,5cyclictest0-21swapper/120:05:441
278519950,5cyclictest0-21swapper/119:42:081
278519950,5cyclictest0-21swapper/100:04:231
278519950,3cyclictest0-21swapper/123:01:191
278519950,1cyclictest0-21swapper/123:15:181
278519950,1cyclictest0-21swapper/123:11:121
278519950,1cyclictest0-21swapper/119:30:191
278519950,1cyclictest0-21swapper/100:30:201
278519950,0cyclictest0-21swapper/122:19:211
278519950,0cyclictest0-21swapper/121:10:411
278469953,1cyclictest28001-21/usr/sbin/munin20:15:170
278469950,5cyclictest0-21swapper/020:30:050
278469950,4cyclictest9744-21/usr/sbin/munin20:45:140
278519944,0cyclictest0-21swapper/123:40:101
278519941,1cyclictest0-21swapper/120:40:111
278519940,4cyclictest0-21swapper/123:45:191
278519940,4cyclictest0-21swapper/120:36:251
278519940,3cyclictest0-21swapper/122:35:331
278519940,3cyclictest0-21swapper/120:27:201
278519940,3cyclictest0-21swapper/119:45:111
278519940,3cyclictest0-21swapper/100:35:201
278519940,2cyclictest0-21swapper/122:55:261
278519940,2cyclictest0-21swapper/122:50:111
278519940,2cyclictest0-21swapper/121:35:101
278519940,1cyclictest0-21swapper/120:00:011
278519940,0cyclictest0-21swapper/122:40:101
278519940,0cyclictest0-21swapper/122:10:181
278519940,0cyclictest0-21swapper/121:32:481
278519931,1cyclictest0-21swapper/119:35:111
278519931,1cyclictest0-21swapper/119:20:081
278519930,3cyclictest0-21swapper/121:56:111
278519930,3cyclictest0-21swapper/119:15:011
278519930,0cyclictest0-21swapper/119:10:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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