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2026-03-28 - 23:46
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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 Mar 28, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
287922213144,46sleep30-21swapper/307:08:193
289052202161,27sleep20-21swapper/207:09:482
286182200160,27sleep00-21swapper/007:06:030
285792196158,25sleep10-21swapper/107:05:321
138252680,0sleep10-21swapper/109:39:591
169632180,0sleep10-21swapper/112:30:141
2901599150,14cyclictest6886-21ls07:30:002
29015991413,1cyclictest28-21ksoftirqd/212:28:542
102982140,0sleep30-21swapper/308:45:113
303362130,0sleep00-21swapper/007:10:170
29015991311,1cyclictest28-21ksoftirqd/210:08:052
29015991311,1cyclictest28-21ksoftirqd/210:08:052
2901599130,12cyclictest30470-21sh08:20:002
29001991311,1cyclictest9-21ksoftirqd/008:30:000
2900199130,13cyclictest0-21swapper/009:20:110
29015991211,1cyclictest28-21ksoftirqd/212:34:592
29015991211,1cyclictest28-21ksoftirqd/209:40:132
29015991210,1cyclictest28-21ksoftirqd/212:15:002
29001991211,1cyclictest9-21ksoftirqd/011:20:000
2900199120,7cyclictest17708-21apt-get11:50:110
2900199120,7cyclictest17708-21apt-get11:50:100
2901599119,1cyclictest28-21ksoftirqd/210:05:002
2901599119,1cyclictest28-21ksoftirqd/207:40:012
29015991111,0cyclictest28-21ksoftirqd/207:50:132
29015991110,1cyclictest28-21ksoftirqd/210:52:072
2901599110,10cyclictest0-21swapper/212:01:522
29001991110,1cyclictest9-21ksoftirqd/011:40:000
29001991110,1cyclictest9-21ksoftirqd/009:05:000
2900199111,5cyclictest17603-21latency_hist09:44:590
2901799100,2cyclictest0-21swapper/307:15:113
2901599109,1cyclictest28-21ksoftirqd/211:45:152
2901599109,1cyclictest28-21ksoftirqd/210:40:192
2901599109,1cyclictest28-21ksoftirqd/210:10:052
2901599108,1cyclictest28-21ksoftirqd/209:36:242
2901599108,1cyclictest28-21ksoftirqd/208:35:012
29015991010,0cyclictest28-21ksoftirqd/210:55:152
2900199109,1cyclictest9-21ksoftirqd/012:15:010
2900199109,1cyclictest9-21ksoftirqd/010:50:140
2900199109,1cyclictest9-21ksoftirqd/010:20:000
2900199109,1cyclictest9-21ksoftirqd/007:35:010
2900199108,1cyclictest9-21ksoftirqd/012:24:590
2900199108,1cyclictest9-21ksoftirqd/010:20:160
2900199108,1cyclictest9-21ksoftirqd/008:50:000
2900199102,4cyclictest10089-21latency_hist08:44:590
290179998,1cyclictest35-21ksoftirqd/308:40:003
290179990,1cyclictest0-21swapper/310:40:133
290159998,1cyclictest28-21ksoftirqd/211:55:112
290159998,1cyclictest28-21ksoftirqd/211:40:162
290159998,1cyclictest28-21ksoftirqd/211:35:112
290159998,1cyclictest28-21ksoftirqd/211:30:152
290159998,1cyclictest28-21ksoftirqd/211:05:002
290159998,1cyclictest28-21ksoftirqd/210:45:142
290159998,1cyclictest28-21ksoftirqd/210:35:132
290159998,1cyclictest28-21ksoftirqd/210:30:132
290159998,1cyclictest28-21ksoftirqd/209:30:122
290159997,2cyclictest28-21ksoftirqd/209:50:202
290159997,1cyclictest28-21ksoftirqd/212:20:222
290159997,1cyclictest28-21ksoftirqd/210:20:202
290159997,1cyclictest28-21ksoftirqd/207:55:152
290159997,1cyclictest28-21ksoftirqd/207:15:142
290159990,9cyclictest0-21swapper/211:23:182
290159990,7cyclictest16393-21kworker/u8:011:07:542
290149990,8cyclictest0-21swapper/108:25:091
290019999,0cyclictest9-21ksoftirqd/010:00:140
290019998,1cyclictest9-21ksoftirqd/012:05:130
290019998,1cyclictest9-21ksoftirqd/011:15:010
290019990,3cyclictest22102-21apt-get09:10:110
11350290,0sleep10-21swapper/110:18:061
290159987,1cyclictest28-21ksoftirqd/212:10:102
290159987,1cyclictest28-21ksoftirqd/208:40:112
290159986,1cyclictest61650irq/122-eno110:20:002
290159986,1cyclictest61650irq/122-eno107:30:222
290159986,1cyclictest28-21ksoftirqd/211:15:122
290159986,1cyclictest28-21ksoftirqd/211:10:162
290159986,1cyclictest28-21ksoftirqd/209:26:332
290159986,1cyclictest28-21ksoftirqd/209:11:062
290149981,5cyclictest0-21swapper/110:55:121
290149980,1cyclictest0-21swapper/107:45:091
290019987,1cyclictest9-21ksoftirqd/011:40:130
290019987,1cyclictest9-21ksoftirqd/010:45:010
290019987,1cyclictest9-21ksoftirqd/007:55:140
290019987,1cyclictest29019-21ssh09:17:400
290019986,1cyclictest9-21ksoftirqd/011:55:130
290019986,1cyclictest9-21ksoftirqd/007:25:140
290019983,1cyclictest240-21systemd-journal12:35:000
290019982,3cyclictest5793-21perf09:30:000
290019981,6cyclictest733-21sshd09:36:160
290019980,7cyclictest13264-21ssh11:01:030
290019980,1cyclictest24917-21ssh09:54:160
290019980,1cyclictest16791-21ssh11:48:190
290179976,1cyclictest9717-21cat12:20:173
290179976,1cyclictest10360-21cat07:35:143
290179973,4cyclictest31364-21munin-node12:02:223
290179973,2cyclictest240-21systemd-journal09:19:523
290179971,3cyclictest21852-21diskmemload11:40:033
290179970,2cyclictest0-21swapper/311:25:543
290179970,1cyclictest693-21runrttasks10:50:123
290179970,1cyclictest0-21swapper/309:41:393
290159976,1cyclictest61650irq/122-eno112:05:162
290159976,1cyclictest61650irq/122-eno109:55:112
290159976,1cyclictest28-21ksoftirqd/211:50:112
290159976,1cyclictest28-21ksoftirqd/211:50:102
290159976,1cyclictest28-21ksoftirqd/211:25:212
290159976,1cyclictest28-21ksoftirqd/210:25:132
290159976,1cyclictest28-21ksoftirqd/208:50:192
290159976,1cyclictest28-21ksoftirqd/208:10:172
290159976,1cyclictest11832-21kworker/2:207:20:152
290159976,0cyclictest11832-21kworker/2:208:05:122
290159975,1cyclictest28-21ksoftirqd/212:35:422
290159975,1cyclictest28-21ksoftirqd/209:20:172
290159975,1cyclictest28-21ksoftirqd/209:16:072
290159975,1cyclictest17824-21ssh09:45:102
290159975,1cyclictest11832-21kworker/2:207:40:182
290159975,1cyclictest11832-21kworker/2:207:15:002
290159970,2cyclictest0-21swapper/208:30:132
290149970,4cyclictest0-21swapper/109:25:021
290149970,2cyclictest0-21swapper/111:50:111
290149970,2cyclictest0-21swapper/111:50:101
290019976,1cyclictest9-21ksoftirqd/011:05:010
290019976,1cyclictest9-21ksoftirqd/008:20:130
290019976,1cyclictest11198-1kworker/u9:212:25:210
290019975,1cyclictest9-21ksoftirqd/007:20:140
290019975,1cyclictest26004-21ssh09:55:120
290019974,1cyclictest9-21ksoftirqd/008:06:050
290019972,2cyclictest240-21systemd-journal07:40:010
290019971,5cyclictest26863-21if_eno108:10:180
290019971,5cyclictest25708-21telnet12:00:100
290019970,6cyclictest4123-21ssh11:30:240
290019970,6cyclictest12877-21cpuspeed_turbos08:50:140
290019970,6cyclictest10720-21ssh10:59:360
290019970,6cyclictest0-21swapper/011:20:140
290019970,6cyclictest0-21swapper/010:40:150
290019970,6cyclictest0-21swapper/008:30:140
290019970,6cyclictest0-21swapper/007:15:220
290019970,5cyclictest240-21systemd-journal09:09:590
290019970,1cyclictest9761-21ssh09:34:590
290019970,1cyclictest870-21apt-get12:10:100
290019970,1cyclictest4640-21ssh10:10:040
290019970,1cyclictest30409-21apt-get11:25:010
290019970,1cyclictest27114-21ssh10:39:070
290019970,1cyclictest22945-21ssh10:33:140
290019970,1cyclictest0-21swapper/012:38:190
290019970,1cyclictest0-21swapper/010:25:230
15396270,0sleep10-21swapper/112:27:481
290179965,1cyclictest8056-21ssh09:30:563
290179965,1cyclictest4639-21ssh09:27:223
290179965,1cyclictest2697-21ssh12:10:233
290179965,1cyclictest25326-21ssh11:16:523
290179965,1cyclictest24342-21ssh09:52:433
290179965,1cyclictest23533-21ssh10:34:493
290179965,1cyclictest18661-21ssh12:30:493
290179965,1cyclictest18335-21ssh10:26:113
290179965,1cyclictest17798-21ssh09:45:083
290179965,1cyclictest16443-21ntpq11:05:183
290179965,1cyclictest15673-21ssh11:45:223
290179965,1cyclictest11179-21ssh11:00:093
290179964,1cyclictest26673-21ntp_states09:55:163
290179964,1cyclictest21852-21diskmemload10:03:113
290179964,1cyclictest1747-21ntpd12:05:593
290179963,1cyclictest548-21systemd-logind07:10:183
290179963,1cyclictest240-21systemd-journal08:00:063
290179962,3cyclictest571-21nscd09:11:363
290179961,4cyclictest773-21ssh10:45:163
290179961,4cyclictest0-21swapper/310:20:143
290179961,2cyclictest9073-21sort10:15:143
290179961,2cyclictest23634-21apt-get08:05:123
290179961,2cyclictest0-21swapper/309:20:123
290179961,2cyclictest0-21swapper/307:25:123
290179961,1cyclictest22275-21diskstats11:55:123
290179960,6cyclictest0-21swapper/310:13:443
290179960,4cyclictest0-21swapper/312:36:163
290179960,3cyclictest0-21swapper/311:12:083
290179960,2cyclictest0-21swapper/311:33:173
290179960,2cyclictest0-21swapper/309:35:283
290179960,1cyclictest4755-21dpkg12:15:003
290179960,1cyclictest12665-21ssh12:25:123
290179960,1cyclictest0-21swapper/311:52:183
290179960,1cyclictest0-21swapper/311:52:183
290179960,1cyclictest0-21swapper/311:35:033
290179960,0cyclictest0-21swapper/311:20:573
290159966,0cyclictest61650irq/122-eno109:00:172
290159966,0cyclictest61650irq/122-eno108:47:162
290159965,1cyclictest28-21ksoftirqd/208:55:152
290159964,1cyclictest28-21ksoftirqd/209:05:112
290159964,1cyclictest28-21ksoftirqd/208:25:112
290159960,3cyclictest0-21swapper/208:20:112
290149965,1cyclictest0-21swapper/112:15:021
290149960,6cyclictest0-21swapper/112:09:541
290149960,6cyclictest0-21swapper/111:13:431
290149960,6cyclictest0-21swapper/109:30:301
290149960,6cyclictest0-21swapper/107:18:501
290149960,4cyclictest0-21swapper/111:22:541
290149960,3cyclictest0-21swapper/112:00:161
290149960,2cyclictest0-21swapper/111:25:111
290149960,1cyclictest0-21swapper/107:10:131
290149960,0cyclictest0-21swapper/111:43:151
290019965,1cyclictest9-21ksoftirqd/008:35:130
290019965,1cyclictest15806-21hddtemp_smartct08:55:160
290019963,1cyclictest240-21systemd-journal08:15:060
290019961,1cyclictest21279-21/usr/sbin/munin08:00:130
290019960,6cyclictest0-21swapper/010:05:120
290019960,6cyclictest0-21swapper/010:05:110
290019960,0cyclictest0-21swapper/009:46:310
290019960,0cyclictest0-21swapper/007:45:500
290019960,0cyclictest0-21swapper/007:40:110
290179955,0cyclictest31365-21kworker/3:208:14:493
290179955,0cyclictest0-21swapper/308:55:153
290179955,0cyclictest0-21swapper/308:20:283
290179954,1cyclictest9468-21ssh10:56:163
290179954,1cyclictest2849-21ssh10:06:043
290179954,1cyclictest2849-21ssh10:06:033
290179954,1cyclictest16325-21sleep07:50:003
290179953,1cyclictest30458-21cron08:20:003
290179953,1cyclictest19726-21apt-get09:05:123
290179952,2cyclictest8714-21gltestperf08:40:153
290179952,2cyclictest16553-21/usr/sbin/munin07:50:113
290179951,3cyclictest21852-21diskmemload10:35:133
290179951,1cyclictest20252-21which07:55:213
290179951,1cyclictest0-21swapper/309:00:163
290179950,3cyclictest0-21swapper/308:30:163
290179950,0cyclictest0-21swapper/308:50:363
290179950,0cyclictest0-21swapper/307:30:143
290179950,0cyclictest0-21swapper/307:21:573
290159954,1cyclictest28-21ksoftirqd/208:00:132
290159953,1cyclictest61650irq/122-eno107:45:112
290149955,0cyclictest0-21swapper/111:58:121
290149955,0cyclictest0-21swapper/110:21:481
290149953,1cyclictest22062sleep107:20:121
290149953,1cyclictest0-21swapper/107:40:001
290149950,5cyclictest0-21swapper/112:36:281
290149950,5cyclictest0-21swapper/110:45:141
290149950,5cyclictest0-21swapper/110:29:091
290149950,5cyclictest0-21swapper/108:40:151
290149950,5cyclictest0-21swapper/108:14:491
290149950,5cyclictest0-21swapper/108:00:181
290149950,5cyclictest0-21swapper/107:41:121
290149950,4cyclictest0-21swapper/111:06:051
290149950,4cyclictest0-21swapper/111:00:161
290149950,4cyclictest0-21swapper/110:50:161
290149950,4cyclictest0-21swapper/109:59:021
290149950,3cyclictest0-21swapper/110:33:321
290149950,3cyclictest0-21swapper/110:12:481
290149950,3cyclictest0-21swapper/109:10:141
290149950,1cyclictest0-21swapper/111:45:121
290149950,1cyclictest0-21swapper/111:36:511
290149950,1cyclictest0-21swapper/111:30:001
290149950,1cyclictest0-21swapper/110:00:191
290149950,1cyclictest0-21swapper/109:42:271
290149950,0cyclictest0-21swapper/112:20:131
290149950,0cyclictest0-21swapper/108:22:591
290149950,0cyclictest0-21swapper/107:57:271
290019950,5cyclictest0-21swapper/007:50:140
290179943,1cyclictest639-21apt-get08:25:083
290179940,3cyclictest11845-21/usr/sbin/munin07:40:133
290149944,0cyclictest0-21swapper/108:07:311
290149943,1cyclictest21706-21chrt09:08:241
290149942,1cyclictest30261-21chrt09:20:021
290149941,1cyclictest0-21swapper/108:55:181
290149941,1cyclictest0-21swapper/108:40:001
290149940,4cyclictest0-21swapper/107:50:201
290149940,3cyclictest0-21swapper/111:15:121
290149940,3cyclictest0-21swapper/110:35:181
290149940,3cyclictest0-21swapper/109:17:021
290149940,2cyclictest0-21swapper/112:11:341
290149940,2cyclictest0-21swapper/108:45:181
290149940,1cyclictest0-21swapper/110:05:111
290149940,1cyclictest0-21swapper/110:05:101
290149940,1cyclictest0-21swapper/109:50:041
290149940,1cyclictest0-21swapper/108:15:141
290149940,1cyclictest0-21swapper/107:25:151
290149940,0cyclictest0-21swapper/110:40:051
290149940,0cyclictest0-21swapper/109:46:051
290149931,1cyclictest126322sleep108:50:011
290149931,1cyclictest0-21swapper/108:30:121
290149930,3cyclictest203-21jbd2/sda2-809:00:301
290149930,3cyclictest0-21swapper/107:30:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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