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2026-08-29 - 12:23
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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 Aug 29, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309712218162,44sleep00-21swapper/019:07:450
310442201161,26sleep10-21swapper/119:08:431
308592201163,25sleep20-21swapper/219:06:182
308052198159,25sleep30-21swapper/319:05:353
49892460,0sleep00-21swapper/023:45:160
31243991211,1cyclictest31110-21latency_hist21:20:003
3122599123,5cyclictest21110-21latency_hist00:10:010
3123799119,1cyclictest28-21ksoftirqd/219:30:002
3123799119,1cyclictest28-21ksoftirqd/219:30:002
3123799110,8cyclictest11301-21snmpd00:07:592
3122599119,1cyclictest9-21ksoftirqd/023:35:000
3122599114,6cyclictest21601-21grep21:05:000
3124399109,1cyclictest35-21ksoftirqd/320:40:003
3122599109,1cyclictest9-21ksoftirqd/023:05:140
3122599109,1cyclictest9-21ksoftirqd/023:05:000
3122599109,1cyclictest9-21ksoftirqd/022:12:080
267072100,0sleep20-21swapper/221:59:012
312439990,5cyclictest0-21swapper/323:02:503
312439990,5cyclictest0-21swapper/322:55:123
312439990,4cyclictest23793-21apt-get21:55:113
312439990,3cyclictest0-21swapper/323:50:113
312379997,1cyclictest28-21ksoftirqd/223:45:082
312379990,7cyclictest0-21swapper/221:40:162
312379990,6cyclictest12200-21/usr/sbin/munin23:55:192
312379990,4cyclictest19546-21rm22:35:102
312379990,4cyclictest0-21swapper/219:40:112
312379990,1cyclictest0-21swapper/200:15:182
312259995,0cyclictest0-21swapper/022:35:200
312439987,1cyclictest35-21ksoftirqd/323:46:353
312439986,1cyclictest11301-21snmpd21:40:083
312439986,1cyclictest11301-21snmpd20:28:043
312439986,1cyclictest11301-21snmpd20:28:033
312439986,1cyclictest11301-21snmpd19:55:203
312439980,5cyclictest14206-21grep19:40:123
312439980,5cyclictest0-21swapper/322:10:293
312379988,0cyclictest28-21ksoftirqd/222:05:372
312379987,1cyclictest28-21ksoftirqd/220:15:112
312379986,1cyclictest61650irq/122-eno123:30:172
312379986,1cyclictest61650irq/122-eno123:15:202
312379986,1cyclictest61650irq/122-eno122:29:302
312379986,1cyclictest61650irq/122-eno121:46:332
312379986,1cyclictest61650irq/122-eno100:15:002
312379986,1cyclictest28-21ksoftirqd/223:50:502
312379986,1cyclictest11301-21snmpd21:51:202
312379986,1cyclictest11301-21snmpd19:48:502
312379984,3cyclictest28541-21apt-get00:20:102
312379982,5cyclictest1373-21sed19:15:002
312379981,5cyclictest23666-21ssh23:25:192
312379981,1cyclictest0-21swapper/222:10:142
312259988,0cyclictest9-21ksoftirqd/022:30:010
312259987,1cyclictest9-21ksoftirqd/023:35:190
312259987,1cyclictest11301-21snmpd21:29:200
312259986,1cyclictest9-21ksoftirqd/023:50:160
312259986,1cyclictest9-21ksoftirqd/022:50:150
312259986,1cyclictest25763-1kworker/u9:222:45:000
312259986,1cyclictest20300-21/usr/sbin/munin21:50:130
312259986,1cyclictest11301-21snmpd21:16:010
312259981,6cyclictest3514-21expr00:30:120
312259981,6cyclictest30570-21ssh00:21:080
312259981,5cyclictest561-21nscd20:25:180
312259981,5cyclictest561-21nscd20:25:180
312259981,4cyclictest20782-21latency_hist19:55:000
312259980,5cyclictest16160-21kworker/u8:223:40:070
312259980,4cyclictest8920-21latency_hist19:30:000
312259980,4cyclictest8920-21latency_hist19:30:000
312259980,1cyclictest24129-21diskmemload21:30:530
6050275,1sleep28760-21kworker/2:000:34:092
312439976,1cyclictest35-21ksoftirqd/322:40:003
312439976,1cyclictest35-21ksoftirqd/320:25:003
312439976,1cyclictest35-21ksoftirqd/319:48:273
312439976,1cyclictest11301-21snmpd23:41:293
312439976,1cyclictest11301-21snmpd23:09:253
312439975,1cyclictest11301-21snmpd19:21:493
312439975,1cyclictest11301-21snmpd19:13:583
312439972,3cyclictest10854-21apt-get23:55:123
312439970,5cyclictest0-21swapper/321:13:083
312439970,4cyclictest0-21swapper/323:25:113
312439970,4cyclictest0-21swapper/320:45:093
312439970,4cyclictest0-21swapper/300:35:103
312439970,4cyclictest0-21swapper/300:15:433
312439970,3cyclictest0-21swapper/323:36:213
312439970,3cyclictest0-21swapper/322:45:133
312439970,3cyclictest0-21swapper/300:10:163
312439970,3cyclictest0-21swapper/300:01:243
312439970,1cyclictest30521-21cstates22:50:143
312379976,1cyclictest61650irq/122-eno123:44:192
312379976,1cyclictest61650irq/122-eno123:10:022
312379976,1cyclictest61650irq/122-eno123:05:212
312379976,1cyclictest61650irq/122-eno122:30:122
312379976,1cyclictest61650irq/122-eno122:15:112
312379976,0cyclictest61650irq/122-eno122:03:232
312379975,1cyclictest61650irq/122-eno123:00:232
312379975,1cyclictest61650irq/122-eno121:10:122
312379975,1cyclictest11301-21snmpd22:55:252
312379975,1cyclictest11301-21snmpd22:48:582
312379975,1cyclictest11301-21snmpd20:51:462
312379975,1cyclictest11301-21snmpd20:33:452
312379975,1cyclictest11301-21snmpd20:10:142
312379971,3cyclictest19453-21apt-get21:00:102
312379970,6cyclictest0-21swapper/200:00:252
312379970,5cyclictest18728-21nscd21:26:422
312379970,4cyclictest0-21swapper/200:35:192
312379970,1cyclictest24129-21diskmemload23:20:162
312379970,1cyclictest0-21swapper/222:50:402
312379970,1cyclictest0-21swapper/219:24:552
312289971,3cyclictest0-21swapper/100:15:081
312289971,1cyclictest0-21swapper/123:50:111
312289970,5cyclictest0-21swapper/122:25:001
312289970,4cyclictest0-21swapper/123:05:021
312289970,4cyclictest0-21swapper/122:41:201
312289970,3cyclictest0-21swapper/121:55:111
312289970,3cyclictest0-21swapper/120:30:001
312289970,3cyclictest0-21swapper/120:30:001
312289970,1cyclictest0-21swapper/121:40:141
312259976,1cyclictest9-21ksoftirqd/022:00:130
312259976,1cyclictest9-21ksoftirqd/019:30:130
312259976,1cyclictest6278-21cat22:15:150
312259976,1cyclictest16096-21ssh00:00:250
312259976,1cyclictest11301-21snmpd20:10:110
312259976,0cyclictest9-21ksoftirqd/023:25:180
312259975,1cyclictest9-21ksoftirqd/023:15:130
312259975,1cyclictest25131-21sshd20:00:460
312259975,1cyclictest11301-21snmpd20:23:150
312259975,1cyclictest11301-21snmpd00:38:550
312259973,1cyclictest10014-21/usr/sbin/munin20:40:340
312259973,0cyclictest24129-21diskmemload22:57:270
312259970,6cyclictest24717-21apt-config00:15:000
312259970,6cyclictest20592-21ssh23:20:230
312259970,6cyclictest1835-21runrttasks00:26:450
312259970,6cyclictest15425-21ssh21:41:230
312259970,6cyclictest12878-21diskstats20:45:120
312259970,6cyclictest0-21swapper/019:22:010
312259970,2cyclictest0-21swapper/019:40:110
312259970,1cyclictest24129-21diskmemload22:33:450
312259970,1cyclictest0-21swapper/021:56:320
1235270,0sleep00-21swapper/022:08:520
312439966,0cyclictest35-21ksoftirqd/319:54:023
312439965,1cyclictest4973-21ssh00:30:373
312439965,1cyclictest19643-21ssh00:05:243
312439965,1cyclictest18390-21ssh22:32:083
312439965,1cyclictest13702-21ssh23:10:463
312439965,1cyclictest13138-21ssh22:25:153
312439965,1cyclictest11301-21snmpd19:25:163
312439965,1cyclictest11301-21snmpd19:25:163
312439965,1cyclictest11301-21snmpd00:20:223
312439965,1cyclictest1108-21ssh21:21:273
312439965,1cyclictest1108-21ssh21:21:273
312439964,1cyclictest11301-21snmpd21:25:013
312439964,1cyclictest11301-21snmpd21:07:253
312439964,1cyclictest11301-21snmpd20:03:593
312439962,2cyclictest240-21systemd-journal20:20:003
312439961,3cyclictest0-21swapper/323:20:233
312439961,2cyclictest0-21swapper/321:30:113
312439960,4cyclictest24129-21diskmemload22:20:143
312439960,4cyclictest0-21swapper/323:30:103
312439960,4cyclictest0-21swapper/322:42:573
312439960,4cyclictest0-21swapper/322:15:203
312439960,4cyclictest0-21swapper/322:05:213
312439960,4cyclictest0-21swapper/321:53:293
312439960,3cyclictest0-21swapper/321:45:123
312439960,2cyclictest0-21swapper/300:29:313
312439960,1cyclictest15291-21apt-get23:15:123
312439960,1cyclictest10414-21fschecks_count21:35:153
312439960,1cyclictest0-21swapper/322:00:223
312379966,0cyclictest61650irq/122-eno123:35:112
312379966,0cyclictest61650irq/122-eno122:40:172
312379966,0cyclictest61650irq/122-eno122:20:132
312379966,0cyclictest61650irq/122-eno121:36:172
312379966,0cyclictest61650irq/122-eno121:30:132
312379966,0cyclictest61650irq/122-eno121:05:122
312379966,0cyclictest61650irq/122-eno120:55:252
312379966,0cyclictest61650irq/122-eno120:40:132
312379966,0cyclictest61650irq/122-eno120:20:172
312379966,0cyclictest61650irq/122-eno120:00:112
312379966,0cyclictest61650irq/122-eno119:35:162
312379965,1cyclictest61650irq/122-eno120:35:132
312379965,1cyclictest61650irq/122-eno100:25:202
312379964,1cyclictest61650irq/122-eno119:50:212
312379964,1cyclictest28-21ksoftirqd/220:25:122
312379964,1cyclictest28-21ksoftirqd/220:25:122
312379964,1cyclictest28-21ksoftirqd/220:05:182
312379963,2cyclictest32024-21tune2fs21:20:122
312379963,2cyclictest32024-21tune2fs21:20:122
312379962,3cyclictest13976-21unixbench-2d20:45:192
312379960,3cyclictest0-21swapper/221:15:022
312289960,6cyclictest0-21swapper/123:34:541
312289960,6cyclictest0-21swapper/123:16:441
312289960,6cyclictest0-21swapper/123:02:481
312289960,5cyclictest0-21swapper/123:25:111
312289960,4cyclictest0-21swapper/122:05:301
312289960,2cyclictest0-21swapper/119:40:101
312289960,1cyclictest0-21swapper/121:10:111
312259965,1cyclictest9762-21ssh21:35:020
312259965,1cyclictest587-21sed19:10:340
312259965,1cyclictest24967-21ssh00:15:010
312259965,1cyclictest15853-21ntpq20:50:170
312259965,1cyclictest12657-21ntp_states19:35:170
312259964,1cyclictest11301-21snmpd20:35:480
312259962,2cyclictest240-21systemd-journal20:20:000
312259961,4cyclictest26552-21/usr/sbin/munin22:45:150
312259960,6cyclictest4229-1kworker/u9:222:20:150
312259960,6cyclictest0-21swapper/021:20:120
312259960,6cyclictest0-21swapper/021:20:120
312259960,6cyclictest0-21swapper/021:05:190
312259960,6cyclictest0-21swapper/020:58:250
312259960,6cyclictest0-21swapper/020:05:170
312259960,6cyclictest0-21swapper/019:55:130
312259960,6cyclictest0-21swapper/019:19:100
312259960,5cyclictest16828-21apt-get21:45:100
312259960,5cyclictest11822-21telnet23:10:110
312259960,1cyclictest24384-21apt-get21:10:100
312259960,0cyclictest24129-21diskmemload23:55:050
8308250,0sleep10-21swapper/119:25:201
8308250,0sleep10-21swapper/119:25:201
312439954,1cyclictest14728-21apt-get20:50:113
312439954,1cyclictest11301-21snmpd21:04:193
312439954,1cyclictest11301-21snmpd20:55:523
312439954,1cyclictest11301-21snmpd19:35:013
312439953,1cyclictest27826-21latency_hist20:10:003
312439950,5cyclictest0-21swapper/319:15:143
312439950,1cyclictest9127-21runrttasks19:30:023
312379955,0cyclictest61650irq/122-eno119:55:122
312379955,0cyclictest61650irq/122-eno119:30:122
312379950,1cyclictest2053-21/usr/sbin/munin19:15:132
312289955,0cyclictest0-21swapper/122:25:571
312289955,0cyclictest0-21swapper/121:34:471
312289952,2cyclictest327352sleep122:53:231
312289951,1cyclictest0-21swapper/123:41:531
312289951,1cyclictest0-21swapper/122:32:261
312289951,1cyclictest0-21swapper/120:00:171
312289950,5cyclictest0-21swapper/123:22:161
312289950,5cyclictest0-21swapper/121:16:451
312289950,5cyclictest0-21swapper/100:10:591
312289950,5cyclictest0-21swapper/100:09:261
312289950,3cyclictest0-21swapper/123:35:191
312289950,3cyclictest0-21swapper/122:10:061
312289950,3cyclictest0-21swapper/122:02:021
312289950,3cyclictest0-21swapper/119:15:171
312289950,2cyclictest0-21swapper/123:45:161
312289950,2cyclictest0-21swapper/123:10:151
312289950,2cyclictest0-21swapper/121:00:131
312289950,2cyclictest0-21swapper/120:45:001
312289950,1cyclictest0-21swapper/122:55:041
312289950,1cyclictest0-21swapper/120:20:111
312289950,0cyclictest0-21swapper/121:29:301
312289950,0cyclictest0-21swapper/121:20:291
312289950,0cyclictest0-21swapper/121:20:291
312259954,1cyclictest9-21ksoftirqd/020:30:130
312259950,1cyclictest16270-21/usr/sbin/munin19:45:170
30396250,0sleep30-21swapper/320:15:003
312439942,2cyclictest10168-21cut20:40:133
312439942,1cyclictest5287-21apt-get20:30:113
312289942,1cyclictest0-21swapper/121:45:111
312289941,2cyclictest0-21swapper/119:40:001
312289941,1cyclictest0-21swapper/119:20:161
312289941,0cyclictest0-21swapper/122:19:181
312289940,4cyclictest0-21swapper/121:08:381
312289940,4cyclictest0-21swapper/119:46:551
312289940,3cyclictest0-21swapper/123:57:121
312289940,3cyclictest0-21swapper/122:46:561
312289940,3cyclictest0-21swapper/121:50:141
312289940,3cyclictest0-21swapper/120:15:131
312289940,3cyclictest0-21swapper/100:20:341
312289940,2cyclictest0-21swapper/122:36:021
312289940,2cyclictest0-21swapper/121:35:201
312289940,2cyclictest0-21swapper/120:55:121
312289940,2cyclictest0-21swapper/120:50:141
312289940,2cyclictest0-21swapper/100:30:131
312289940,2cyclictest0-21swapper/100:25:411
312289940,2cyclictest0-21swapper/100:00:371
312289940,1cyclictest0-21swapper/120:35:111
312289940,1cyclictest0-21swapper/120:05:091
312289940,1cyclictest0-21swapper/119:30:111
312289940,1cyclictest0-21swapper/119:10:101
312289931,1cyclictest22781-21chrt19:56:041
312289931,1cyclictest201rcuc/119:54:561
312289930,3cyclictest0-21swapper/120:10:131
312289930,2cyclictest0-21swapper/120:45:001
312289930,2cyclictest0-21swapper/120:30:011
312289930,2cyclictest0-21swapper/100:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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