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2026-04-28 - 14:52
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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 Tue Apr 28, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127362227157,54sleep10-21swapper/107:09:101
127732212177,23sleep30-21swapper/307:09:403
125692212162,24sleep00-21swapper/007:07:000
106932202162,26sleep20-21swapper/207:05:092
56032790,0sleep10-21swapper/109:10:001
154542690,0sleep10-21swapper/112:11:191
211392640,0sleep30-21swapper/307:25:133
255302600,0sleep30-21swapper/312:25:153
12880991210,1cyclictest9-21ksoftirqd/007:25:000
1289299116,4cyclictest28-21ksoftirqd/207:55:002
1289299100,3cyclictest0-21swapper/211:45:112
1288099102,7cyclictest583-21in:imuxsock11:11:190
128979990,5cyclictest11573-21runrttasks12:06:363
128929997,1cyclictest28-21ksoftirqd/207:35:122
128809993,5cyclictest24430-21cat12:25:010
128809992,3cyclictest9739-21perf10:40:000
128809992,3cyclictest29111-21perf09:40:000
25466280,0sleep10-21swapper/110:16:251
128979988,0cyclictest35-21ksoftirqd/311:04:533
128979988,0cyclictest0-21swapper/310:06:403
128979981,6cyclictest35-21ksoftirqd/309:37:013
128979980,4cyclictest0-21swapper/310:25:123
128929986,1cyclictest8999-21ntpq11:20:192
128929986,1cyclictest61650irq/122-eno112:35:132
128929986,1cyclictest61650irq/122-eno112:00:232
128929986,1cyclictest61650irq/122-eno111:05:122
128929986,1cyclictest61650irq/122-eno111:00:152
128929986,1cyclictest61650irq/122-eno110:49:042
128929986,1cyclictest61650irq/122-eno110:40:122
128929986,1cyclictest61650irq/122-eno110:35:172
128929986,1cyclictest61650irq/122-eno110:00:212
128929986,1cyclictest61650irq/122-eno109:30:222
128929986,1cyclictest61650irq/122-eno109:30:222
128929986,1cyclictest61650irq/122-eno109:28:572
128929986,1cyclictest28-21ksoftirqd/208:50:132
128929986,1cyclictest1128-21cat11:10:152
128929980,7cyclictest0-21swapper/211:26:422
128929980,3cyclictest3999-21apt-get11:15:132
128929980,3cyclictest3999-21apt-get11:15:132
128809986,1cyclictest6467-21cat12:00:170
128809986,1cyclictest11794-21perf08:15:000
128809981,1cyclictest30833-21ssh10:25:100
128809980,7cyclictest4127-21aten2.4-expect11:15:130
128809980,7cyclictest4127-21aten2.4-expect11:15:130
128809980,7cyclictest2280-21ssh12:37:210
128809980,7cyclictest13719-21ssh10:45:100
128809980,6cyclictest0-21swapper/011:40:000
128809980,4cyclictest5331-21diskmemload11:55:200
128979976,1cyclictest35-21ksoftirqd/308:20:183
128979976,1cyclictest1386-21ntpq11:10:183
128979974,1cyclictest240-21systemd-journal11:05:043
128979973,1cyclictest5331-21diskmemload10:31:473
128979971,3cyclictest0-21swapper/309:20:143
128979971,2cyclictest0-21swapper/309:18:443
128979970,5cyclictest0-21swapper/311:41:083
128979970,5cyclictest0-21swapper/307:10:143
128979970,4cyclictest0-21swapper/311:59:143
128979970,4cyclictest0-21swapper/311:50:113
128979970,4cyclictest0-21swapper/310:51:583
128979970,4cyclictest0-21swapper/309:30:103
128979970,4cyclictest0-21swapper/309:30:103
128979970,4cyclictest0-21swapper/309:28:483
128979970,2cyclictest0-21swapper/311:15:133
128979970,2cyclictest0-21swapper/311:15:133
128929976,1cyclictest61650irq/122-eno112:10:192
128929976,1cyclictest61650irq/122-eno110:31:012
128929976,1cyclictest61650irq/122-eno109:40:232
128929976,1cyclictest61650irq/122-eno109:10:002
128929976,1cyclictest61650irq/122-eno108:20:142
128929976,1cyclictest31315-21cat11:50:152
128929976,0cyclictest61650irq/122-eno110:50:122
128929976,0cyclictest61650irq/122-eno109:54:472
128929975,1cyclictest61650irq/122-eno112:25:112
128929975,1cyclictest61650irq/122-eno111:38:012
128929975,1cyclictest61650irq/122-eno110:55:142
128929975,1cyclictest61650irq/122-eno110:12:132
128929975,1cyclictest28245-21ntpq10:20:162
128929975,1cyclictest2632-21ssh09:45:442
128929975,1cyclictest16987-21ssh10:05:192
128929971,4cyclictest13570-21apt-get09:20:112
128929970,7cyclictest0-21swapper/211:33:592
128929970,6cyclictest15243-21munin-node09:39:232
128929970,5cyclictest20874-21apt-get12:20:112
128929970,5cyclictest17067-21apt-get12:15:092
128929970,4cyclictest0-21swapper/209:17:582
128869972,3cyclictest0-21swapper/111:45:011
128869970,2cyclictest0-21swapper/112:35:121
128809976,1cyclictest9938-21ssh10:40:080
128809976,1cyclictest760-21telnet09:45:110
128809976,1cyclictest31516-21ssh11:07:410
128809976,1cyclictest31372-21ssh09:40:590
128809976,1cyclictest17330-21ssh11:30:570
128809976,1cyclictest17100-21telnet12:15:090
128809976,1cyclictest14398-21/usr/sbin/munin08:20:200
128809975,1cyclictest16753-21/usr/sbin/munin08:25:200
128809975,1cyclictest15787-21/usr/sbin/munin10:05:180
128809973,2cyclictest240-21systemd-journal07:40:000
128809973,1cyclictest5331-21diskmemload12:10:130
128809972,3cyclictest5331-21diskmemload11:03:380
128809970,6cyclictest9357-21telnet12:05:120
128809970,6cyclictest8222-21apt-get09:55:100
128809970,6cyclictest32375-21taskset07:49:370
128809970,6cyclictest30407-21/usr/sbin/munin11:50:140
128809970,6cyclictest27944-21/usr/sbin/munin07:40:110
128809970,6cyclictest27944-21/usr/sbin/munin07:40:100
128809970,6cyclictest27292-21tune2fs11:45:140
128809970,6cyclictest2704-21ssh10:30:130
128809970,6cyclictest26190-21/usr/sbin/munin08:45:170
128809970,6cyclictest24667-21ssh12:25:110
128809970,6cyclictest24517-21open_inodes10:15:170
128809970,6cyclictest23833-21/usr/sbin/munin08:40:140
128809970,6cyclictest23016-21telnet11:40:130
128809970,6cyclictest21566-21/usr/sbin/munin09:30:200
128809970,6cyclictest21566-21/usr/sbin/munin09:30:200
128809970,6cyclictest21462-21/usr/sbin/munin08:35:150
128809970,6cyclictest15024-21chrt07:12:490
128809970,6cyclictest12013-21/usr/sbin/munin08:15:130
128809970,6cyclictest11938-21taskset10:00:010
128809970,6cyclictest0-21swapper/007:15:010
128809970,4cyclictest2985-21perf09:05:000
128809970,1cyclictest8073-21cpuspeed_turbos11:20:140
128809970,1cyclictest6308-21ssh09:50:310
128809970,1cyclictest5779-21/usr/sbin/munin09:10:170
128809970,1cyclictest5331-21diskmemload10:20:140
128809970,1cyclictest31401-21df08:55:140
128809970,1cyclictest30247-21ssh12:30:270
128809970,1cyclictest23284-21ssh10:55:540
128809970,1cyclictest197652sleep009:26:210
128809970,1cyclictest19494-21ssh10:10:020
128809970,1cyclictest17477-21ssh10:50:060
128809970,1cyclictest10272-21fschecks_count09:15:150
128809970,1cyclictest0-21swapper/011:28:350
128809970,0cyclictest0-21swapper/009:20:140
128979965,1cyclictest8455-21ntpq08:05:183
128979965,1cyclictest6439-21ssh09:50:533
128979965,1cyclictest5559-21ssh12:00:133
128979965,1cyclictest35-21ksoftirqd/308:03:483
128979965,1cyclictest2554-21ssh09:45:313
128979965,1cyclictest24105-21ssh12:24:183
128979965,1cyclictest23315-21ssh10:56:003
128979965,1cyclictest2141-21ssh12:36:583
128979965,1cyclictest15863-21ssh10:46:183
128979965,1cyclictest15749-21ssh12:12:093
128979965,1cyclictest13659-21ssh11:26:123
128979965,1cyclictest13650irq/124-ahci[0007:45:003
128979965,1cyclictest13650irq/124-ahci[0007:45:003
128979965,1cyclictest12483-21ssh10:42:253
128979963,1cyclictest240-21systemd-journal09:10:003
128979963,1cyclictest240-21systemd-journal08:57:323
128979962,3cyclictest5331-21diskmemload12:32:073
128979962,2cyclictest240-21systemd-journal07:50:003
128979961,4cyclictest27072-21/usr/sbin/munin10:20:133
128979961,3cyclictest0-21swapper/310:01:333
128979961,1cyclictest20749-21ntp_states10:10:193
128979960,6cyclictest0-21swapper/311:47:043
128979960,6cyclictest0-21swapper/311:32:073
128979960,4cyclictest25966-21munin-run08:45:003
128979960,4cyclictest19625-21sh12:17:273
128979960,4cyclictest0-21swapper/310:16:433
128979960,4cyclictest0-21swapper/309:55:063
128979960,4cyclictest0-21swapper/308:00:003
128979960,3cyclictest0-21swapper/311:20:593
128979960,3cyclictest0-21swapper/310:36:243
128979960,3cyclictest0-21swapper/309:43:413
128979960,3cyclictest0-21swapper/309:14:073
128979960,2cyclictest0-21swapper/309:00:113
128979960,2cyclictest0-21swapper/307:50:133
128979960,1cyclictest0-21swapper/311:35:133
128929966,0cyclictest61650irq/122-eno112:30:122
128929966,0cyclictest61650irq/122-eno111:40:162
128929966,0cyclictest61650irq/122-eno110:26:212
128929966,0cyclictest61650irq/122-eno108:55:152
128929966,0cyclictest61650irq/122-eno108:40:332
128929966,0cyclictest61650irq/122-eno108:17:432
128929966,0cyclictest61650irq/122-eno108:12:372
128929966,0cyclictest61650irq/122-eno107:40:112
128929966,0cyclictest61650irq/122-eno107:40:112
128929965,1cyclictest61650irq/122-eno109:55:102
128929965,1cyclictest61650irq/122-eno107:25:182
128929964,1cyclictest24106-21gltestperf10:15:142
128929964,1cyclictest16410-21tr07:15:112
128929963,1cyclictest240-21systemd-journal09:07:022
128929961,2cyclictest2584-21apt-get07:55:112
128929961,1cyclictest0-21swapper/208:45:122
128929960,6cyclictest0-21swapper/212:05:162
128929960,3cyclictest0-21swapper/211:55:152
128929960,2cyclictest0-21swapper/207:20:112
128929960,0cyclictest0-21swapper/208:30:192
128869963,1cyclictest0-21swapper/112:33:211
128869963,1cyclictest0-21swapper/110:26:031
128869963,1cyclictest0-21swapper/109:20:171
128869961,2cyclictest0-21swapper/110:02:291
128869960,6cyclictest0-21swapper/110:22:541
128869960,6cyclictest0-21swapper/109:15:141
128869960,4cyclictest0-21swapper/112:06:361
128869960,4cyclictest0-21swapper/109:25:241
128869960,3cyclictest0-21swapper/110:45:091
128869960,2cyclictest0-21swapper/109:50:001
128869960,1cyclictest0-21swapper/108:10:131
128869960,0cyclictest0-21swapper/110:54:511
128809965,1cyclictest7399-21aten2.4-expect08:05:130
128809965,1cyclictest28579-21telnet08:50:130
128809960,6cyclictest0-21swapper/009:05:180
128809960,6cyclictest0-21swapper/008:30:110
128809960,6cyclictest0-21swapper/007:55:110
128809960,5cyclictest23216-21/usr/sbin/munin07:30:150
128809960,5cyclictest20864-21/usr/sbin/munin07:25:170
128809960,1cyclictest0-21swapper/008:00:140
128809960,0cyclictest0-21swapper/007:50:160
128979952,1cyclictest26259-21fschecks_time07:35:153
128979952,1cyclictest240-21systemd-journal08:50:163
128979951,2cyclictest240-21systemd-journal07:17:003
128979950,4cyclictest19796-21tune2fs08:30:143
128979950,2cyclictest240-21systemd-journal08:40:003
128979950,2cyclictest13367-21which08:15:183
128979950,2cyclictest0-21swapper/308:25:123
128979950,2cyclictest0-21swapper/307:20:153
128979950,1cyclictest9660-21/usr/sbin/munin08:10:133
128979950,1cyclictest240-21systemd-journal08:47:163
128929955,0cyclictest61650irq/122-eno108:35:182
128929955,0cyclictest61650irq/122-eno108:05:172
128929955,0cyclictest61650irq/122-eno107:10:572
128929954,1cyclictest28-21ksoftirqd/208:01:252
128929951,1cyclictest16756-21apt-get08:25:122
128929950,4cyclictest0-21swapper/207:45:122
128929950,1cyclictest842-21/usr/sbin/munin09:00:152
128929950,1cyclictest0-21swapper/207:30:162
128869955,0cyclictest0-21swapper/112:27:161
128869955,0cyclictest0-21swapper/111:51:031
128869955,0cyclictest0-21swapper/109:50:331
128869955,0cyclictest0-21swapper/109:10:131
128869955,0cyclictest0-21swapper/108:16:131
128869952,1cyclictest0-21swapper/111:35:181
128869952,1cyclictest0-21swapper/110:31:341
128869952,1cyclictest0-21swapper/108:54:021
128869951,3cyclictest9221-21taskset10:38:511
128869951,0cyclictest0-21swapper/110:56:141
128869950,5cyclictest0-21swapper/112:16:351
128869950,5cyclictest0-21swapper/111:46:171
128869950,5cyclictest0-21swapper/108:45:361
128869950,5cyclictest0-21swapper/107:44:081
128869950,5cyclictest0-21swapper/107:44:081
128869950,5cyclictest0-21swapper/107:28:481
128869950,5cyclictest0-21swapper/107:21:191
128869950,5cyclictest0-21swapper/107:11:391
128869950,3cyclictest0-21swapper/111:55:221
128869950,3cyclictest0-21swapper/111:00:101
128869950,3cyclictest0-21swapper/109:37:561
128869950,3cyclictest0-21swapper/108:55:191
128869950,3cyclictest0-21swapper/107:55:181
128869950,3cyclictest0-21swapper/107:30:151
128869950,2cyclictest0-21swapper/112:20:031
128869950,2cyclictest0-21swapper/111:05:191
128869950,2cyclictest0-21swapper/110:40:131
128869950,2cyclictest0-21swapper/108:45:001
128869950,1cyclictest0-21swapper/111:23:031
128869950,1cyclictest0-21swapper/111:15:131
128869950,1cyclictest0-21swapper/111:15:131
128869950,1cyclictest0-21swapper/110:10:191
128869950,1cyclictest0-21swapper/109:55:351
128869950,1cyclictest0-21swapper/109:30:561
128869950,1cyclictest0-21swapper/109:30:561
128869950,0cyclictest0-21swapper/112:00:131
128869950,0cyclictest0-21swapper/111:25:011
128869950,0cyclictest0-21swapper/107:39:531
128979941,1cyclictest0-21swapper/307:30:123
128869943,1cyclictest323342sleep107:49:061
128869941,1cyclictest0-21swapper/108:30:191
128869940,3cyclictest0-21swapper/111:11:141
128869940,3cyclictest0-21swapper/110:05:171
128869940,2cyclictest0-21swapper/111:31:121
128869940,2cyclictest0-21swapper/108:10:001
128869940,2cyclictest0-21swapper/107:50:131
128869940,1cyclictest0-21swapper/109:40:141
128869940,1cyclictest0-21swapper/109:00:111
128869940,1cyclictest0-21swapper/108:35:121
128869940,1cyclictest0-21swapper/108:25:181
128869940,1cyclictest0-21swapper/107:15:001
128869933,0cyclictest0-21swapper/108:21:071
128869933,0cyclictest0-21swapper/108:00:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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