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2026-04-25 - 03:55
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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 Sat Apr 25, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204492208153,42sleep10-21swapper/119:09:181
203662208141,22sleep00-21swapper/019:08:110
181572208156,26sleep30-21swapper/319:05:023
202042197158,25sleep20-21swapper/219:06:042
155282210,0sleep00-21swapper/021:53:350
326572160,1sleep1111rcu_preempt19:30:191
2060399150,1cyclictest0-21swapper/220:40:132
2058899145,4cyclictest10958-21latency_hist21:05:010
77032130,0sleep10-21swapper/100:34:571
250562130,0sleep10-21swapper/120:25:131
2061099130,4cyclictest0-21swapper/320:45:133
20603991311,1cyclictest28-21ksoftirqd/219:20:012
20603991311,1cyclictest28-21ksoftirqd/219:20:012
20610991210,1cyclictest35-21ksoftirqd/320:05:003
2060399129,1cyclictest28-21ksoftirqd/222:00:002
20603991211,1cyclictest28-21ksoftirqd/220:10:012
2060399120,12cyclictest0-21swapper/223:20:262
2058899122,5cyclictest15939-21latency_hist23:20:000
2060399110,7cyclictest22967-21munin-node00:21:452
2060399110,11cyclictest0-21swapper/219:53:392
2060399110,0cyclictest0-21swapper/221:24:232
2058899110,9cyclictest17998-21snmpd00:18:000
209632100,0sleep20-21swapper/200:09:162
2060399109,1cyclictest28-21ksoftirqd/223:05:012
2060399109,1cyclictest28-21ksoftirqd/219:30:012
2058899102,4cyclictest19891-21cat22:00:010
2058899100,8cyclictest22967-21munin-node23:21:330
2058899100,5cyclictest26819-21perf20:30:010
15322100,2sleep20-21swapper/223:42:412
206039998,1cyclictest28-21ksoftirqd/220:35:002
206039997,1cyclictest28-21ksoftirqd/221:35:042
206109986,1cyclictest17998-21snmpd22:32:463
206109980,6cyclictest13287-21diskmemload00:20:143
206039987,1cyclictest28-21ksoftirqd/223:50:122
206039986,1cyclictest61650irq/122-eno123:30:012
206039986,1cyclictest61650irq/122-eno122:15:012
206039986,1cyclictest61650irq/122-eno121:29:372
206039986,1cyclictest61650irq/122-eno121:15:182
206039986,1cyclictest61650irq/122-eno121:14:402
206039986,1cyclictest28-21ksoftirqd/220:39:592
206039986,1cyclictest28-21ksoftirqd/219:40:132
206039986,1cyclictest17998-21snmpd00:37:162
206039986,1cyclictest17998-21snmpd00:29:342
205959980,4cyclictest0-21swapper/121:20:021
205889986,1cyclictest9-21ksoftirqd/021:16:300
205889986,1cyclictest20050-21ssh22:41:090
205889986,1cyclictest17998-21snmpd19:29:380
205889986,1cyclictest17998-21snmpd19:17:240
205889986,1cyclictest17998-21snmpd19:17:240
205889981,6cyclictest31461-21ssh22:55:190
205889981,5cyclictest8610-21/usr/sbin/munin23:10:130
205889980,7cyclictest24267-21diskstats23:30:140
206109976,1cyclictest17998-21snmpd22:09:463
206109976,1cyclictest17998-21snmpd20:57:523
206109976,1cyclictest17998-21snmpd00:00:333
206109975,1cyclictest23889-21ssh00:11:553
206109975,1cyclictest17998-21snmpd22:46:373
206109975,1cyclictest17998-21snmpd20:32:443
206109975,1cyclictest17998-21snmpd19:22:123
206109972,2cyclictest31105-21mailstats22:55:183
206109972,2cyclictest23740-21apt-get23:30:113
206109972,2cyclictest0-21swapper/321:50:113
206109970,6cyclictest7548-21ssh23:07:523
206109970,4cyclictest0-21swapper/321:57:483
206039977,0cyclictest61650irq/122-eno122:07:522
206039977,0cyclictest0-21swapper/221:50:282
206039976,1cyclictest61650irq/122-eno122:48:202
206039976,1cyclictest61650irq/122-eno122:22:212
206039976,1cyclictest61650irq/122-eno122:18:562
206039976,1cyclictest61650irq/122-eno121:45:042
206039976,0cyclictest61650irq/122-eno123:15:132
206039975,1cyclictest9800-21ntpq23:10:142
206039975,1cyclictest61650irq/122-eno122:25:192
206039975,1cyclictest61650irq/122-eno119:10:122
206039975,1cyclictest28-21ksoftirqd/200:30:142
206039975,1cyclictest17998-21snmpd23:45:272
206039975,1cyclictest17998-21snmpd23:35:172
206039975,1cyclictest17998-21snmpd22:02:032
206039975,1cyclictest17998-21snmpd21:30:052
206039975,1cyclictest13271-21sh21:10:012
206039975,1cyclictest12517-21ssh22:31:142
206039972,4cyclictest5568-21cut21:40:152
206039970,5cyclictest0-21swapper/222:35:152
205959971,6cyclictest0-21swapper/121:36:171
205959970,6cyclictest0-21swapper/123:25:161
205959970,6cyclictest0-21swapper/123:03:491
205959970,4cyclictest0-21swapper/122:49:341
205959970,4cyclictest0-21swapper/122:40:131
205959970,3cyclictest0-21swapper/123:53:051
205959970,3cyclictest0-21swapper/122:32:071
205959970,1cyclictest0-21swapper/119:19:351
205959970,1cyclictest0-21swapper/119:19:351
205889976,1cyclictest9-21ksoftirqd/022:05:000
205889976,1cyclictest9-21ksoftirqd/019:10:100
205889976,1cyclictest9-21ksoftirqd/000:00:350
205889976,1cyclictest17998-21snmpd23:09:580
205889975,1cyclictest9-21ksoftirqd/000:11:570
205889975,1cyclictest6192-21ntp_states21:40:180
205889975,1cyclictest17998-21snmpd21:30:020
205889975,1cyclictest17998-21snmpd20:49:530
205889975,1cyclictest17998-21snmpd20:33:100
205889975,1cyclictest17998-21snmpd20:17:570
205889975,1cyclictest17998-21snmpd19:40:290
205889973,0cyclictest0-21swapper/020:00:110
205889972,2cyclictest13287-21diskmemload22:45:210
205889971,5cyclictest12098-21ssh23:55:340
205889970,7cyclictest0-21swapper/023:52:380
205889970,6cyclictest5391-21ssh00:30:180
205889970,6cyclictest31564-21perf20:39:590
205889970,6cyclictest28331-21cut22:10:130
205889970,6cyclictest13287-21diskmemload22:50:110
205889970,6cyclictest0-21swapper/023:40:500
205889970,6cyclictest0-21swapper/000:25:140
205889970,3cyclictest20013-21basename23:25:130
205889970,3cyclictest0-21swapper/022:35:120
205889970,1cyclictest9938-21ntpq21:45:180
205889970,1cyclictest29674-21ssh23:36:200
205889970,1cyclictest27504-21ssh21:25:350
205889970,1cyclictest2698-21apt-get23:45:120
205889970,1cyclictest14052-21diskstats21:10:130
205889970,1cyclictest0-21swapper/022:03:580
205889970,1cyclictest0-21swapper/021:35:140
205889970,1cyclictest0-21swapper/020:20:090
1156270,0sleep00-21swapper/022:16:160
206109966,0cyclictest9535-21sensors19:50:193
206109965,1cyclictest940-21ssh23:41:033
206109965,1cyclictest8163-21ssh00:35:023
206109965,1cyclictest6632-21ssh00:32:023
206109965,1cyclictest6619-21ssh22:25:103
206109965,1cyclictest570-21nscd19:30:113
206109965,1cyclictest4992-21ssh23:46:433
206109965,1cyclictest3469-21ssh00:28:443
206109965,1cyclictest30476-21ssh23:38:333
206109965,1cyclictest29525-21ssh21:30:063
206109965,1cyclictest2825-21ssh22:20:053
206109965,1cyclictest28066-21ssh21:27:013
206109965,1cyclictest23217-21ssh21:20:233
206109965,1cyclictest22266-21ssh23:26:443
206109965,1cyclictest21174-21ssh22:44:163
206109965,1cyclictest19468-21ssh21:15:563
206109965,1cyclictest18883-21ssh23:22:513
206109965,1cyclictest17998-21snmpd23:18:363
206109965,1cyclictest17998-21snmpd22:36:383
206109965,1cyclictest17998-21snmpd20:18:523
206109965,1cyclictest17998-21snmpd20:12:523
206109965,1cyclictest17998-21snmpd19:56:433
206109965,1cyclictest14436-21cat21:10:163
206109964,1cyclictest17998-21snmpd20:44:343
206109964,1cyclictest17998-21snmpd20:09:253
206109964,1cyclictest17998-21snmpd19:42:243
206109964,1cyclictest17998-21snmpd19:11:353
206109963,1cyclictest13287-21diskmemload21:40:033
206109962,3cyclictest1072-21apt-get23:00:113
206109961,4cyclictest31483-21apt-get22:15:113
206109961,3cyclictest13287-21diskmemload21:35:483
206109961,2cyclictest18303-21/usr/sbin/munin00:05:143
206109960,3cyclictest0-21swapper/323:55:133
206109960,3cyclictest0-21swapper/323:10:103
206109960,3cyclictest0-21swapper/322:50:273
206109960,3cyclictest0-21swapper/322:00:363
206109960,0cyclictest0-21swapper/321:45:543
206039966,0cyclictest61650irq/122-eno123:30:122
206039966,0cyclictest61650irq/122-eno121:00:112
206039966,0cyclictest61650irq/122-eno120:20:122
206039966,0cyclictest61650irq/122-eno120:15:292
206039966,0cyclictest61650irq/122-eno120:00:232
206039966,0cyclictest61650irq/122-eno119:45:072
206039966,0cyclictest61650irq/122-eno119:35:102
206039966,0cyclictest61650irq/122-eno100:16:172
206039966,0cyclictest61650irq/122-eno100:00:112
206039965,1cyclictest61650irq/122-eno122:40:172
206039965,1cyclictest28-21ksoftirqd/220:55:142
206039965,1cyclictest28-21ksoftirqd/220:15:002
206039965,1cyclictest17998-21snmpd22:50:132
206039964,1cyclictest61650irq/122-eno119:30:172
206039964,1cyclictest28-21ksoftirqd/223:56:572
206039964,1cyclictest28-21ksoftirqd/219:20:132
206039961,4cyclictest0-21swapper/200:10:162
206039960,4cyclictest0-21swapper/219:55:102
206039960,1cyclictest4856-21apt-get23:05:112
206039960,1cyclictest29689-21apt-get22:55:102
205959965,1cyclictest0-21swapper/121:26:481
205959962,2cyclictest0-21swapper/123:05:351
205959960,6cyclictest0-21swapper/122:54:551
205959960,6cyclictest0-21swapper/119:55:221
205959960,6cyclictest0-21swapper/119:38:151
205959960,6cyclictest0-21swapper/100:02:361
205959960,5cyclictest0-21swapper/121:30:161
205959960,5cyclictest0-21swapper/120:09:241
205959960,5cyclictest0-21swapper/119:50:141
205959960,5cyclictest0-21swapper/119:10:561
205959960,5cyclictest0-21swapper/100:35:161
205959960,4cyclictest0-21swapper/123:48:121
205959960,4cyclictest0-21swapper/123:40:121
205959960,4cyclictest0-21swapper/122:20:131
205959960,4cyclictest0-21swapper/122:05:151
205959960,4cyclictest0-21swapper/100:25:171
205959960,4cyclictest0-21swapper/100:17:241
205959960,4cyclictest0-21swapper/100:10:131
205959960,3cyclictest0-21swapper/123:33:151
205959960,3cyclictest0-21swapper/123:23:191
205959960,3cyclictest0-21swapper/122:10:151
205959960,3cyclictest0-21swapper/121:55:501
205959960,3cyclictest0-21swapper/121:15:041
205959960,2cyclictest0-21swapper/123:16:281
205959960,2cyclictest0-21swapper/122:25:111
205959960,2cyclictest0-21swapper/121:10:111
205959960,2cyclictest0-21swapper/100:05:121
205959960,1cyclictest0-21swapper/121:40:171
205889965,1cyclictest8691-21latency_hist21:00:000
205889965,1cyclictest26927-21diskstats19:20:130
205889965,1cyclictest17998-21snmpd20:50:520
205889964,1cyclictest31792-21cut19:30:140
205889963,3cyclictest0-21swapper/000:20:130
205889963,2cyclictest9780-21grep19:50:210
205889961,4cyclictest22967-21munin-node19:46:010
205889961,1cyclictest12384-21grep21:05:180
205889960,6cyclictest0-21swapper/022:20:340
205889960,6cyclictest0-21swapper/021:20:090
205889960,6cyclictest0-21swapper/019:35:110
205889960,5cyclictest13287-21diskmemload23:00:220
205889960,5cyclictest13287-21diskmemload22:30:130
205889960,0cyclictest0-21swapper/022:25:150
205889960,0cyclictest0-21swapper/020:05:200
205889960,0cyclictest0-21swapper/019:55:100
205889960,0cyclictest0-21swapper/000:35:120
205889960,0cyclictest0-21swapper/000:05:110
206109954,1cyclictest26643-21sshd20:28:223
206109954,1cyclictest12285-21ntpq21:05:163
206109952,1cyclictest240-21systemd-journal21:05:003
206109951,3cyclictest0-21swapper/322:10:113
206109950,1cyclictest25311-21apt-get00:15:123
206109950,1cyclictest22307-21apt-get20:20:093
206109950,1cyclictest0-21swapper/323:52:243
206039955,0cyclictest61650irq/122-eno120:50:122
206039954,1cyclictest61650irq/122-eno120:25:192
206039951,2cyclictest1718-21apt-get20:45:122
205959951,4cyclictest0-21swapper/121:02:541
205959950,5cyclictest0-21swapper/121:47:421
205959950,5cyclictest0-21swapper/120:18:081
205959950,4cyclictest0-21swapper/123:38:481
205959950,4cyclictest0-21swapper/122:15:141
205959950,4cyclictest0-21swapper/119:45:181
205959950,3cyclictest0-21swapper/123:55:131
205959950,3cyclictest0-21swapper/123:12:141
205959950,3cyclictest0-21swapper/121:50:121
205959950,3cyclictest0-21swapper/100:22:561
205959950,2cyclictest0-21swapper/122:59:501
205959950,2cyclictest0-21swapper/120:30:151
205959950,2cyclictest0-21swapper/119:20:121
205959950,1cyclictest0-21swapper/122:36:051
205959950,1cyclictest0-21swapper/122:00:121
205959950,0cyclictest0-21swapper/121:05:141
205889953,1cyclictest17566-21/usr/sbin/munin20:10:200
205889950,5cyclictest0-21swapper/020:41:100
206109943,1cyclictest29646-21cat19:25:143
206109943,1cyclictest1927-21cat19:35:153
206109942,1cyclictest5400-21/usr/sbin/munin20:50:183
206109942,1cyclictest29634-21grep20:35:123
206109940,0cyclictest24819-21sed19:15:163
206109940,0cyclictest24819-21sed19:15:153
206109940,0cyclictest0-21swapper/319:45:123
205959944,0cyclictest0-21swapper/120:45:161
205959942,1cyclictest0-21swapper/120:59:291
205959941,2cyclictest0-21swapper/120:50:111
205959940,1cyclictest0-21swapper/119:40:211
205959940,1cyclictest0-21swapper/119:25:121
205959940,0cyclictest0-21swapper/120:00:191
205959931,1cyclictest0-21swapper/120:20:091
205959931,1cyclictest0-21swapper/120:10:111
205959930,2cyclictest0-21swapper/120:40:101
205959930,0cyclictest0-21swapper/120:35:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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