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2026-08-31 - 00:34
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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 Sun Aug 30, 2026 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20092207162,31sleep30-21swapper/307:08:523
20122204166,25sleep10-21swapper/107:08:551
19102203162,27sleep20-21swapper/207:07:342
20282197159,25sleep00-21swapper/007:09:050
303312720,0sleep10-21swapper/110:45:121
301932170,0sleep10-21swapper/111:30:191
2190991311,1cyclictest28-21ksoftirqd/212:19:592
219899122,5cyclictest27260-21diskmemload11:20:003
2180991211,1cyclictest9-21ksoftirqd/011:51:290
2180991210,1cyclictest9-21ksoftirqd/008:20:000
219099119,1cyclictest28-21ksoftirqd/208:25:012
219099119,1cyclictest28-21ksoftirqd/207:30:002
218099119,1cyclictest9-21ksoftirqd/008:25:000
2180991110,1cyclictest9-21ksoftirqd/010:10:520
218099110,5cyclictest9506-21latency_hist12:35:000
119612110,0sleep20-21swapper/210:19:432
219899100,7cyclictest20295-21apt-get09:45:113
219099109,1cyclictest28-21ksoftirqd/212:05:002
219099109,1cyclictest28-21ksoftirqd/212:00:012
2190991010,0cyclictest28-21ksoftirqd/212:15:012
218599100,9cyclictest0-21swapper/109:47:191
218099109,1cyclictest9-21ksoftirqd/012:36:260
2180991010,0cyclictest9-21ksoftirqd/009:45:130
218099100,5cyclictest7611-21perf07:20:000
149522100,0sleep327260-21diskmemload10:23:013
21989999,0cyclictest35-21ksoftirqd/312:10:183
21909998,1cyclictest28-21ksoftirqd/210:51:502
21909998,1cyclictest28-21ksoftirqd/208:35:002
21909998,1cyclictest28-21ksoftirqd/207:25:002
21909997,1cyclictest28-21ksoftirqd/211:08:292
21909990,4cyclictest0-21swapper/210:10:102
21809992,4cyclictest12365-21cut07:30:010
21809990,8cyclictest30989-21apt-get09:15:110
16967290,0sleep10-21swapper/111:58:231
1346290,0sleep10-21swapper/112:21:151
21989987,1cyclictest35-21ksoftirqd/308:00:013
21989986,1cyclictest11301-21snmpd11:34:473
21989986,1cyclictest11301-21snmpd08:02:333
21989980,7cyclictest27260-21diskmemload12:05:113
21989980,4cyclictest0-21swapper/312:30:063
21909987,1cyclictest28-21ksoftirqd/209:55:172
21909986,1cyclictest61650irq/122-eno111:15:152
21909986,1cyclictest61650irq/122-eno110:45:142
21909986,1cyclictest61650irq/122-eno108:00:202
21909986,1cyclictest28-21ksoftirqd/212:25:142
21909986,1cyclictest28-21ksoftirqd/211:40:002
21909986,1cyclictest28-21ksoftirqd/211:25:142
21909986,1cyclictest28-21ksoftirqd/210:30:522
21909986,1cyclictest11301-21snmpd11:00:272
21909983,5cyclictest19120-21ssh09:42:042
21909982,5cyclictest21422-21kworker/u8:012:08:462
21909980,7cyclictest0-21swapper/211:45:152
21909980,6cyclictest0-21swapper/207:45:122
21909980,5cyclictest7727-21python12:30:202
21809986,1cyclictest11301-21snmpd10:58:310
21809986,1cyclictest11301-21snmpd09:58:410
21809986,1cyclictest11301-21snmpd09:29:410
21809986,1cyclictest11301-21snmpd08:52:130
21809986,1cyclictest11301-21snmpd07:56:510
21809983,4cyclictest27260-21diskmemload12:00:110
21809983,2cyclictest27260-21diskmemload10:54:090
21809983,1cyclictest15074-21/usr/sbin/munin07:35:210
21809982,4cyclictest22044-21apt-get11:20:100
21809981,6cyclictest0-21swapper/008:46:210
21809981,1cyclictest23769-21ssh12:07:460
21809980,7cyclictest20822-21ssh11:17:380
21809980,7cyclictest16065-21open_files11:10:180
21809980,7cyclictest0-21swapper/009:24:500
21809980,4cyclictest4541-21munin-node07:20:230
21809980,4cyclictest32272-21sed11:34:590
21809980,2cyclictest16821-21ssh09:40:130
21809980,1cyclictest0-21swapper/011:45:010
28248270,1sleep10-21swapper/111:28:271
21989976,1cyclictest11301-21snmpd08:58:463
21989976,1cyclictest11301-21snmpd07:45:413
21989976,1cyclictest11301-21snmpd07:22:193
21989976,1cyclictest11301-21snmpd07:17:533
21989975,1cyclictest11301-21snmpd09:21:043
21989975,1cyclictest11301-21snmpd08:35:243
21989975,1cyclictest11301-21snmpd08:15:413
21989975,1cyclictest11301-21snmpd07:36:553
21989975,1cyclictest11301-21snmpd07:30:533
21989972,2cyclictest27260-21diskmemload10:36:463
21989971,1cyclictest0-21swapper/310:30:133
21989970,6cyclictest16095-21ssh11:55:303
21989970,5cyclictest0-21swapper/308:40:163
21989970,4cyclictest25073-21ssh09:50:183
21989970,4cyclictest0-21swapper/309:10:173
21909977,0cyclictest28-21ksoftirqd/211:40:142
21909976,1cyclictest61650irq/122-eno111:20:182
21909976,1cyclictest61650irq/122-eno111:10:192
21909976,1cyclictest61650irq/122-eno110:35:132
21909976,1cyclictest61650irq/122-eno110:25:102
21909976,1cyclictest61650irq/122-eno110:20:132
21909976,1cyclictest61650irq/122-eno110:05:382
21909976,1cyclictest61650irq/122-eno110:04:262
21909976,1cyclictest61650irq/122-eno109:27:312
21909976,1cyclictest61650irq/122-eno107:10:142
21909976,1cyclictest28-21ksoftirqd/209:50:142
21909976,0cyclictest61650irq/122-eno107:30:182
21909975,1cyclictest61650irq/122-eno112:35:142
21909975,1cyclictest61650irq/122-eno111:30:142
21909975,1cyclictest61650irq/122-eno109:20:232
21909975,1cyclictest61650irq/122-eno109:05:142
21909975,1cyclictest61650irq/122-eno108:55:132
21909975,1cyclictest28-21ksoftirqd/208:40:122
21909975,1cyclictest11301-21snmpd10:44:522
21909973,3cyclictest30095-21nscd09:01:132
21909972,2cyclictest240-21systemd-journal07:35:002
21909971,1cyclictest0-21swapper/209:30:042
21909970,7cyclictest0-21swapper/207:15:132
21909970,6cyclictest0-21swapper/208:45:302
21909970,2cyclictest0-21swapper/209:45:112
21909970,1cyclictest0-21swapper/208:10:052
21859976,1cyclictest21-21ksoftirqd/109:07:241
21859971,6cyclictest0-21swapper/112:09:241
21859971,1cyclictest0-21swapper/109:26:191
21859970,7cyclictest0-21swapper/107:19:131
21859970,6cyclictest0-21swapper/111:47:441
21859970,5cyclictest0-21swapper/111:35:131
21859970,4cyclictest0-21swapper/110:31:321
21859970,2cyclictest0-21swapper/112:30:121
21859970,1cyclictest0-21swapper/110:06:531
21859970,1cyclictest0-21swapper/109:11:141
21859970,1cyclictest0-21swapper/108:15:271
21809976,1cyclictest9117-21ssh11:45:330
21809976,1cyclictest14151-21ssh11:08:400
21809976,1cyclictest11301-21snmpd11:37:240
21809975,1cyclictest11301-21snmpd10:35:390
21809974,1cyclictest240-21systemd-journal09:09:090
21809972,4cyclictest13290-21apt-get09:35:100
21809971,6cyclictest28136-21ssh11:28:050
21809971,1cyclictest14961-21ssh11:55:150
21809970,6cyclictest8838-21apt-get10:15:100
21809970,6cyclictest7684-1kworker/u9:010:27:200
21809970,6cyclictest4686-21ssh12:25:420
21809970,6cyclictest4131-21/usr/sbin/munin07:10:220
21809970,6cyclictest32369-21ssh10:47:510
21809970,6cyclictest32213-21fschecks_time08:10:140
21809970,6cyclictest29854-21ssh09:12:260
21809970,6cyclictest27260-21diskmemload12:20:100
21809970,6cyclictest27260-21diskmemload10:00:110
21809970,6cyclictest23940-21grep09:50:130
21809970,6cyclictest21299-21ssh10:30:560
21809970,6cyclictest1851-21ssh10:05:100
21809970,6cyclictest10353-21users08:30:210
21809970,6cyclictest0-21swapper/009:00:110
21809970,1cyclictest30473-21ssh12:16:530
21809970,1cyclictest27260-21diskmemload12:11:580
21809970,1cyclictest0-21swapper/011:00:170
21809970,1cyclictest0-21swapper/008:01:140
21989965,1cyclictest9809-21ssh11:00:503
21989965,1cyclictest6253-21ssh10:55:383
21989965,1cyclictest4631-21ssh12:25:303
21989965,1cyclictest32525-21ssh10:48:233
21989965,1cyclictest29536-21ssh09:56:563
21989965,1cyclictest27620-21ssh11:26:223
21989965,1cyclictest12097-21ssh09:32:073
21989965,1cyclictest11301-21snmpd11:50:143
21989965,1cyclictest11301-21snmpd09:42:323
21989965,1cyclictest11301-21snmpd08:07:143
21989965,1cyclictest11301-21snmpd07:43:403
21989965,1cyclictest11301-21snmpd07:14:303
21989965,1cyclictest1025-21ssh10:03:173
21989964,1cyclictest26293-21ssh10:40:033
21989964,0cyclictest27260-21diskmemload12:39:283
21989963,0cyclictest27260-21diskmemload10:25:343
21989962,2cyclictest767-21sh09:16:343
21989962,2cyclictest27260-21diskmemload11:45:113
21989962,2cyclictest27260-21diskmemload11:41:483
21989962,2cyclictest27260-21diskmemload11:10:133
21989961,3cyclictest6011-21rm09:25:023
21989961,3cyclictest0-21swapper/311:20:103
21989961,2cyclictest27260-21diskmemload11:07:233
21989961,1cyclictest10276-21/usr/sbin/munin10:15:193
21989961,1cyclictest0-21swapper/309:35:123
21989960,3cyclictest28223-21apt-get12:15:123
21989960,3cyclictest27260-21diskmemload10:06:263
21989960,3cyclictest0-21swapper/310:10:143
21989960,1cyclictest2432-21timerandwakeup10:50:203
21989960,1cyclictest0-21swapper/312:20:253
21989960,1cyclictest0-21swapper/311:38:083
21909966,0cyclictest61650irq/122-eno109:35:042
21909966,0cyclictest61650irq/122-eno109:15:152
21909966,0cyclictest61650irq/122-eno109:10:042
21909966,0cyclictest61650irq/122-eno108:07:112
21909966,0cyclictest61650irq/122-eno107:55:122
21909966,0cyclictest61650irq/122-eno107:50:302
21909965,1cyclictest61650irq/122-eno112:20:132
21909965,1cyclictest61650irq/122-eno111:50:052
21909964,1cyclictest61650irq/122-eno108:50:212
21909964,1cyclictest61650irq/122-eno107:40:172
21909964,1cyclictest11301-21snmpd08:25:202
21909960,5cyclictest5275-21if_eno110:55:152
21909960,4cyclictest0-21swapper/208:35:122
21859965,1cyclictest0-21swapper/109:16:311
21859961,1cyclictest0-21swapper/110:55:221
21859960,6cyclictest0-21swapper/111:05:061
21859960,6cyclictest0-21swapper/110:18:241
21859960,6cyclictest0-21swapper/109:43:341
21859960,6cyclictest0-21swapper/109:04:301
21859960,6cyclictest0-21swapper/108:51:421
21859960,6cyclictest0-21swapper/108:05:001
21859960,6cyclictest0-21swapper/107:56:051
21859960,6cyclictest0-21swapper/107:51:531
21859960,5cyclictest0-21swapper/112:10:151
21859960,5cyclictest0-21swapper/111:41:581
21859960,5cyclictest0-21swapper/108:20:141
21859960,4cyclictest0-21swapper/111:03:501
21859960,4cyclictest0-21swapper/110:13:011
21859960,3cyclictest0-21swapper/111:10:151
21859960,3cyclictest0-21swapper/109:24:011
21859960,2cyclictest0-21swapper/109:32:121
21859960,1cyclictest0-21swapper/108:55:161
21809965,1cyclictest11301-21snmpd08:25:350
21809964,1cyclictest11301-21snmpd08:06:020
21809964,1cyclictest10973-21/usr/sbin/munin08:35:200
21809963,1cyclictest548-21systemd-logind10:40:190
21809961,1cyclictest11474-21ssh09:30:220
21809960,6cyclictest0-21swapper/008:55:210
21809960,6cyclictest0-21swapper/007:53:380
21809960,6cyclictest0-21swapper/007:45:140
21809960,6cyclictest0-21swapper/007:40:130
21809960,6cyclictest0-21swapper/007:32:080
21809960,3cyclictest0-21swapper/010:20:110
21989954,1cyclictest35-21ksoftirqd/309:06:153
21989954,1cyclictest24186-21sensors09:00:193
21989954,1cyclictest18969-21ssh12:00:193
21989954,1cyclictest11301-21snmpd08:23:593
21989953,1cyclictest16486-21grep08:45:133
21989951,2cyclictest7170-21/usr/sbin/munin08:25:173
21989950,1cyclictest0-21swapper/308:50:153
21989950,0cyclictest0-21swapper/307:25:123
21909955,0cyclictest61650irq/122-eno108:15:132
21859955,0cyclictest0-21swapper/112:18:561
21859955,0cyclictest0-21swapper/111:52:001
21859955,0cyclictest0-21swapper/110:40:281
21859955,0cyclictest0-21swapper/109:51:071
21859955,0cyclictest0-21swapper/107:41:131
21859952,1cyclictest0-21swapper/108:10:001
21859951,3cyclictest0-21swapper/112:25:151
21859950,5cyclictest0-21swapper/110:25:241
21859950,5cyclictest0-21swapper/109:55:051
21859950,5cyclictest0-21swapper/108:33:431
21859950,5cyclictest0-21swapper/107:45:441
21859950,4cyclictest0-21swapper/108:25:161
21859950,3cyclictest0-21swapper/111:20:021
21859950,3cyclictest0-21swapper/111:15:111
21859950,3cyclictest0-21swapper/110:00:171
21859950,2cyclictest0-21swapper/112:00:121
21859950,2cyclictest0-21swapper/110:20:211
21859950,1cyclictest0-21swapper/107:30:141
21809950,1cyclictest14513-21ntp_states08:40:190
8609240,0sleep30-21swapper/308:30:063
21989941,2cyclictest22900-21grep07:50:123
21989941,1cyclictest325-21/usr/sbin/munin08:10:193
21859944,0cyclictest0-21swapper/108:47:591
21859944,0cyclictest0-21swapper/108:40:061
21859942,1cyclictest17060-21chrt07:38:251
21859940,4cyclictest0-21swapper/108:35:191
21859940,3cyclictest0-21swapper/112:35:161
21859940,3cyclictest0-21swapper/107:25:171
21859940,2cyclictest0-21swapper/110:35:041
21859940,1cyclictest0-21swapper/110:50:051
21859940,1cyclictest0-21swapper/109:35:101
21859940,1cyclictest0-21swapper/107:20:141
21859931,1cyclictest0-21swapper/108:10:111
21859930,3cyclictest2384-21taskset07:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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