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2026-04-01 - 14:57
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Wed Apr 01, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315342204150,21sleep10-21swapper/107:07:441
315412203165,25sleep30-21swapper/307:07:503
316992200162,25sleep00-21swapper/007:09:520
313612199160,26sleep20-21swapper/207:05:272
113782710,0sleep20-21swapper/210:15:002
103792580,0sleep30-21swapper/310:55:143
31814991716,1cyclictest28-21ksoftirqd/209:30:002
298742140,0sleep30-21swapper/309:55:183
3179799123,4cyclictest22143-21latency_hist12:35:000
31797991211,1cyclictest9-21ksoftirqd/008:50:000
3179799120,4cyclictest4601-21apt-get11:30:120
3179799120,11cyclictest0-21swapper/010:50:210
3181499119,1cyclictest28-21ksoftirqd/207:40:002
3179799119,1cyclictest9-21ksoftirqd/011:15:000
3179799119,1cyclictest9-21ksoftirqd/009:30:000
31797991110,1cyclictest9-21ksoftirqd/012:15:000
31797991110,1cyclictest9-21ksoftirqd/010:40:000
3182199100,7cyclictest1727-21munin-node07:19:323
3181499100,10cyclictest61650irq/122-eno111:20:202
3179799109,1cyclictest9-21ksoftirqd/011:00:150
3179799109,1cyclictest9-21ksoftirqd/009:50:180
3179799109,1cyclictest9-21ksoftirqd/008:15:000
3179799108,1cyclictest9-21ksoftirqd/010:40:160
3179799108,1cyclictest9-21ksoftirqd/007:50:000
3179799108,1cyclictest9-21ksoftirqd/007:35:160
3179799100,7cyclictest240-21systemd-journal10:12:020
7233290,0sleep30-21swapper/310:09:213
318219990,7cyclictest1727-21munin-node10:17:013
318149998,1cyclictest28-21ksoftirqd/210:10:002
318149997,1cyclictest28-21ksoftirqd/208:45:002
318149997,1cyclictest28-21ksoftirqd/208:40:002
318149996,1cyclictest28-21ksoftirqd/211:28:342
318149990,0cyclictest0-21swapper/211:47:012
317979998,1cyclictest9-21ksoftirqd/011:50:160
317979998,1cyclictest9-21ksoftirqd/011:05:200
317979998,1cyclictest9-21ksoftirqd/009:40:150
317979998,1cyclictest9-21ksoftirqd/009:10:150
317979998,1cyclictest9-21ksoftirqd/008:40:000
317979998,1cyclictest9-21ksoftirqd/008:30:000
317979998,1cyclictest9-21ksoftirqd/007:50:140
317979997,1cyclictest9-21ksoftirqd/012:15:140
317979993,5cyclictest16782-21latency_hist07:45:000
317979992,6cyclictest1727-21munin-node09:15:250
317979991,7cyclictest16091-21grep10:20:170
317979991,2cyclictest0-21swapper/010:00:120
27705290,0sleep30-21swapper/311:17:053
318219983,4cyclictest10273-21kworker/u8:112:23:263
318219980,6cyclictest0-21swapper/311:28:323
318219980,4cyclictest0-21swapper/308:55:123
318149986,1cyclictest61650irq/122-eno112:10:202
318149986,1cyclictest61650irq/122-eno109:50:192
318149986,1cyclictest28-21ksoftirqd/211:50:142
318149986,1cyclictest28-21ksoftirqd/211:39:462
318149986,1cyclictest28-21ksoftirqd/210:25:002
318149986,0cyclictest61650irq/122-eno110:03:472
318149980,3cyclictest294-21systemd-udevd12:07:082
318069980,3cyclictest0-21swapper/110:00:121
317979988,0cyclictest9-21ksoftirqd/010:15:140
317979988,0cyclictest9-21ksoftirqd/007:55:120
317979987,1cyclictest9-21ksoftirqd/011:25:140
317979987,1cyclictest9-21ksoftirqd/011:20:000
317979987,1cyclictest9-21ksoftirqd/010:10:000
317979987,1cyclictest9-21ksoftirqd/009:05:140
317979986,1cyclictest9-21ksoftirqd/009:30:130
317979986,1cyclictest9-21ksoftirqd/007:20:000
317979986,1cyclictest22740-21perf09:05:000
317979983,2cyclictest101rcuc/009:45:150
317979980,7cyclictest11204-21ssh11:37:250
317979980,2cyclictest240-21systemd-journal11:49:550
318219976,1cyclictest603-21ntpq12:05:173
318219976,1cyclictest35-21ksoftirqd/310:40:003
318219975,2cyclictest693-21runrttasks11:47:483
318219973,3cyclictest6355-21cut10:50:133
318219973,2cyclictest240-21systemd-journal08:24:553
318219972,1cyclictest19047-21smartctl11:05:203
318219971,5cyclictest561-21nscd09:31:193
318219971,3cyclictest25086-21diskmemload10:11:413
318219971,3cyclictest25086-21diskmemload09:20:143
318219970,4cyclictest24716-21diskstats11:55:153
318219970,1cyclictest0-21swapper/307:45:113
318149976,1cyclictest61650irq/122-eno112:22:372
318149976,1cyclictest61650irq/122-eno110:57:212
318149976,1cyclictest61650irq/122-eno110:44:142
318149976,1cyclictest61650irq/122-eno110:32:062
318149976,1cyclictest61650irq/122-eno109:45:152
318149976,1cyclictest61650irq/122-eno109:37:222
318149976,1cyclictest61650irq/122-eno108:15:192
318149976,1cyclictest61650irq/122-eno107:25:122
318149975,1cyclictest61650irq/122-eno109:40:192
318149975,1cyclictest61650irq/122-eno109:30:122
318149975,1cyclictest61650irq/122-eno108:45:202
318149975,1cyclictest61650irq/122-eno108:10:122
318149975,1cyclictest28-21ksoftirqd/207:50:112
318149975,1cyclictest28-21ksoftirqd/207:25:012
318149975,1cyclictest21740-21apt-get07:55:122
318149971,4cyclictest11792-21kworker/u8:211:43:022
318149971,4cyclictest0-21swapper/209:00:122
318149970,2cyclictest0-21swapper/212:35:112
318069971,4cyclictest0-21swapper/111:15:111
318069970,6cyclictest0-21swapper/111:10:131
318069970,6cyclictest0-21swapper/108:10:111
318069970,4cyclictest0-21swapper/110:55:121
318069970,4cyclictest0-21swapper/107:45:171
318069970,1cyclictest0-21swapper/110:10:151
317979977,0cyclictest9-21ksoftirqd/012:05:130
317979976,1cyclictest9-21ksoftirqd/011:40:130
317979976,1cyclictest9-21ksoftirqd/009:55:120
317979975,1cyclictest9-21ksoftirqd/008:40:110
317979975,1cyclictest7208-21ntp_states08:30:190
317979971,5cyclictest10635-21ssh10:55:150
317979971,1cyclictest24762-1kworker/u9:111:18:450
317979970,7cyclictest0-21swapper/012:25:170
317979970,6cyclictest28532-21ssh12:00:120
317979970,6cyclictest24315-21ssh12:35:360
317979970,6cyclictest24278-21/usr/sbin/munin11:55:140
317979970,6cyclictest22012-21ssh10:27:470
317979970,6cyclictest15360-21ssh09:36:340
317979970,6cyclictest1328-21/usr/sbin/munin08:20:160
317979970,1cyclictest4757-21ssh10:47:200
317979970,1cyclictest26451-21ssh10:34:250
317979970,1cyclictest25086-21diskmemload09:21:180
15858270,1sleep10-21swapper/109:37:551
318219966,0cyclictest0-21swapper/309:26:533
318219965,1cyclictest7650-21ssh12:15:143
318219965,1cyclictest31070-21sshd08:14:183
318219965,1cyclictest29651-21ssh11:20:133
318219965,1cyclictest28403-21ssh09:13:483
318219965,1cyclictest23881-21ssh11:12:093
318219965,1cyclictest23096-21ssh10:30:043
318219965,1cyclictest21482-21ssh10:26:233
318219965,1cyclictest20665-21ssh12:31:043
318219965,1cyclictest17401-21ssh10:20:393
318219965,1cyclictest16379-21ssh09:39:183
318219965,1cyclictest15976-21ssh11:01:273
318219965,1cyclictest14645-21ssh11:41:183
318219965,1cyclictest10663-21sshd08:39:293
318219964,1cyclictest35-21ksoftirqd/307:35:013
318219963,1cyclictest240-21systemd-journal09:42:013
318219963,1cyclictest240-21systemd-journal08:45:003
318219963,1cyclictest240-21systemd-journal08:28:303
318219962,1cyclictest3275-21/usr/sbin/munin12:10:213
318219961,2cyclictest25086-21diskmemload09:45:213
318219961,2cyclictest0-21swapper/309:50:203
318219960,6cyclictest0-21swapper/307:25:223
318219960,4cyclictest0-21swapper/311:34:003
318219960,4cyclictest0-21swapper/310:45:073
318219960,3cyclictest0-21swapper/309:15:113
318219960,2cyclictest0-21swapper/310:43:123
318219960,1cyclictest240-21systemd-journal07:14:563
318219960,1cyclictest0-21swapper/309:05:113
318149966,0cyclictest61650irq/122-eno112:15:172
318149966,0cyclictest61650irq/122-eno112:00:132
318149966,0cyclictest61650irq/122-eno111:30:142
318149966,0cyclictest61650irq/122-eno111:11:062
318149966,0cyclictest61650irq/122-eno111:02:042
318149966,0cyclictest61650irq/122-eno110:52:432
318149966,0cyclictest61650irq/122-eno110:46:052
318149966,0cyclictest61650irq/122-eno110:35:532
318149966,0cyclictest61650irq/122-eno110:25:592
318149966,0cyclictest61650irq/122-eno110:15:052
318149966,0cyclictest61650irq/122-eno109:55:292
318149966,0cyclictest61650irq/122-eno109:15:202
318149966,0cyclictest61650irq/122-eno109:10:142
318149966,0cyclictest61650irq/122-eno108:51:252
318149966,0cyclictest61650irq/122-eno108:25:592
318149966,0cyclictest61650irq/122-eno108:23:542
318149966,0cyclictest61650irq/122-eno108:00:122
318149966,0cyclictest61650irq/122-eno107:15:022
318149965,1cyclictest61650irq/122-eno112:25:112
318149965,1cyclictest61650irq/122-eno111:55:222
318149965,1cyclictest61650irq/122-eno109:20:482
318149965,1cyclictest28-21ksoftirqd/208:55:122
318149965,1cyclictest28-21ksoftirqd/208:05:002
318149965,1cyclictest28-21ksoftirqd/207:35:002
318149965,1cyclictest18512-21cat11:05:162
318149964,1cyclictest61650irq/122-eno112:30:112
318149964,1cyclictest61650irq/122-eno108:30:182
318149960,3cyclictest0-21swapper/211:15:112
318069966,0cyclictest0-21swapper/111:00:331
318069966,0cyclictest0-21swapper/109:44:231
318069961,3cyclictest0-21swapper/112:05:411
318069960,6cyclictest0-21swapper/111:34:341
318069960,6cyclictest0-21swapper/110:34:311
318069960,4cyclictest0-21swapper/110:28:151
318069960,3cyclictest0-21swapper/112:29:211
318069960,3cyclictest0-21swapper/111:36:141
318069960,3cyclictest0-21swapper/111:20:121
318069960,3cyclictest0-21swapper/110:54:081
318069960,3cyclictest0-21swapper/110:35:121
318069960,2cyclictest0-21swapper/108:40:141
318069960,0cyclictest0-21swapper/109:15:161
317979966,0cyclictest9-21ksoftirqd/008:50:120
317979965,1cyclictest9-21ksoftirqd/008:15:130
317979965,1cyclictest9-21ksoftirqd/007:10:140
317979961,2cyclictest7554-21apt-get07:25:130
317979960,6cyclictest10906-21ssh12:20:040
317979960,0cyclictest0-21swapper/008:05:180
317979960,0cyclictest0-21swapper/008:01:280
318219954,1cyclictest28934-21cat12:00:143
318219954,1cyclictest16868-21ssh12:26:113
318219953,1cyclictest346-21tr10:00:133
318219953,1cyclictest24420-21tr08:00:133
318219952,1cyclictest0-21swapper/308:55:003
318219951,2cyclictest25086-21diskmemload11:35:203
318219950,5cyclictest0-21swapper/307:50:383
318219950,3cyclictest0-21swapper/312:35:113
318219950,1cyclictest32110-21head08:15:153
318219950,1cyclictest20870-21df11:50:143
318219950,0cyclictest0-21swapper/307:41:213
318149955,0cyclictest61650irq/122-eno107:47:552
318149954,1cyclictest61650irq/122-eno109:05:122
318149954,1cyclictest61650irq/122-eno107:10:172
318149953,1cyclictest15467-21hwlatdetect07:40:152
318069952,1cyclictest0-21swapper/112:02:211
318069952,1cyclictest0-21swapper/109:55:141
318069951,3cyclictest0-21swapper/112:12:371
318069951,3cyclictest0-21swapper/111:40:561
318069951,2cyclictest0-21swapper/109:50:121
318069951,1cyclictest0-21swapper/110:05:181
318069950,5cyclictest0-21swapper/108:51:491
318069950,5cyclictest0-21swapper/107:53:571
318069950,5cyclictest0-21swapper/107:37:501
318069950,5cyclictest0-21swapper/107:20:111
318069950,4cyclictest30765-21taskset10:40:021
318069950,4cyclictest0-21swapper/109:45:171
318069950,3cyclictest0-21swapper/112:31:321
318069950,3cyclictest0-21swapper/109:10:161
318069950,3cyclictest0-21swapper/109:05:001
318069950,2cyclictest0-21swapper/112:20:101
318069950,2cyclictest0-21swapper/112:16:411
318069950,2cyclictest0-21swapper/111:52:111
318069950,2cyclictest0-21swapper/110:45:161
318069950,2cyclictest0-21swapper/110:15:101
318069950,2cyclictest0-21swapper/107:55:111
318069950,1cyclictest0-21swapper/109:22:401
318069950,1cyclictest0-21swapper/108:05:121
318069950,1cyclictest0-21swapper/107:30:121
318069950,0cyclictest0-21swapper/111:25:341
317979954,1cyclictest9-21ksoftirqd/007:20:120
317979954,1cyclictest10069-21chrt07:30:130
317979950,0cyclictest0-21swapper/008:55:140
318219943,1cyclictest14143-21hwlatdetect08:45:153
318219941,2cyclictest21112-21df_inode09:00:143
318219941,1cyclictest6353-21/usr/sbin/munin08:30:143
318219940,3cyclictest0-21swapper/307:55:123
318219940,2cyclictest27085-21cstates08:05:143
318219940,1cyclictest240-21systemd-journal07:20:013
318219940,1cyclictest12263-21apt-get07:35:133
318069944,0cyclictest0-21swapper/111:46:181
318069944,0cyclictest0-21swapper/108:46:161
318069943,1cyclictest0-21swapper/108:25:121
318069943,1cyclictest0-21swapper/108:15:121
318069942,1cyclictest209302sleep111:09:291
318069941,2cyclictest0-21swapper/109:30:151
318069941,2cyclictest0-21swapper/108:00:161
318069941,2cyclictest0-21swapper/107:40:101
318069941,1cyclictest0-21swapper/107:10:121
318069940,4cyclictest0-21swapper/111:55:211
318069940,4cyclictest0-21swapper/109:10:001
318069940,4cyclictest0-21swapper/108:58:121
318069940,4cyclictest0-21swapper/108:24:551
318069940,4cyclictest0-21swapper/107:15:191
318069940,2cyclictest62022sleep108:30:151
318069940,2cyclictest0-21swapper/109:25:061
318069940,2cyclictest0-21swapper/107:30:001
318069940,1cyclictest0-21swapper/112:35:171
318069940,1cyclictest0-21swapper/108:35:121
15594240,0sleep10-21swapper/110:20:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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