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2026-05-08 - 11:50
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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 all highest latencies:
System rack1slot1.osadl.org (updated Fri May 08, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187892242156,58sleep00-21swapper/019:07:530
186352201162,25sleep20-21swapper/219:05:532
189012199160,25sleep30-21swapper/319:09:213
186712198161,24sleep10-21swapper/119:06:201
149792690,0sleep00-21swapper/023:20:190
123322680,0sleep00-21swapper/022:35:140
1904499140,13cyclictest13237-21apt20:05:012
19031991312,1cyclictest9-21ksoftirqd/022:55:010
19031991311,1cyclictest9-21ksoftirqd/022:50:010
192502120,1sleep319252-21aten_r1power_cu19:10:123
19056991212,0cyclictest35-21ksoftirqd/321:45:013
1904499120,11cyclictest0-21swapper/200:35:152
19031991210,1cyclictest9-21ksoftirqd/000:30:010
19056991111,0cyclictest0-21swapper/320:45:223
1903199119,1cyclictest9-21ksoftirqd/023:00:000
1904499109,1cyclictest28-21ksoftirqd/221:36:292
1904499100,9cyclictest21590-21munin-node23:33:192
1904499100,10cyclictest0-21swapper/223:44:032
1903199109,1cyclictest9-21ksoftirqd/021:55:100
1903199109,1cyclictest9-21ksoftirqd/021:40:000
1903199109,1cyclictest9-21ksoftirqd/021:10:000
1903199109,1cyclictest9-21ksoftirqd/000:35:010
1903199108,1cyclictest9-21ksoftirqd/023:55:150
1903199108,1cyclictest9-21ksoftirqd/000:00:130
190569997,1cyclictest35-21ksoftirqd/300:40:003
190569992,3cyclictest0-21swapper/321:33:193
190569991,5cyclictest12011-21apt-get22:35:133
190449999,0cyclictest0-21swapper/222:21:442
190319998,1cyclictest9-21ksoftirqd/023:45:140
190319998,1cyclictest9-21ksoftirqd/023:40:000
190319997,1cyclictest9-21ksoftirqd/021:25:000
190319996,1cyclictest9-21ksoftirqd/023:10:140
190319996,1cyclictest9-21ksoftirqd/021:09:590
190319993,3cyclictest22639-21fschecks_time22:05:150
190319990,5cyclictest6811-21cat21:00:010
3826280,0sleep20-21swapper/223:50:102
190569987,1cyclictest35-21ksoftirqd/321:29:593
190569986,1cyclictest35-21ksoftirqd/322:00:123
190449986,1cyclictest61650irq/122-eno123:22:442
190449986,1cyclictest61650irq/122-eno122:25:162
190449986,1cyclictest61650irq/122-eno121:55:182
190449986,1cyclictest61650irq/122-eno121:55:002
190449986,1cyclictest61650irq/122-eno119:50:012
190449986,1cyclictest61650irq/122-eno119:30:122
190449986,1cyclictest28-21ksoftirqd/221:10:092
190449984,2cyclictest240-21systemd-journal22:16:282
190449981,7cyclictest0-21swapper/200:23:482
190449980,5cyclictest568-21nscd22:40:122
190449980,5cyclictest0-21swapper/221:05:132
190369980,8cyclictest0-21swapper/122:50:141
190369980,3cyclictest76732sleep100:37:281
190319987,1cyclictest9-21ksoftirqd/023:25:120
190319987,1cyclictest9-21ksoftirqd/022:29:590
190319987,1cyclictest9-21ksoftirqd/021:30:150
190319987,1cyclictest9-21ksoftirqd/021:15:120
190319987,1cyclictest9-21ksoftirqd/000:20:160
190319987,1cyclictest9-21ksoftirqd/000:09:590
190319986,1cyclictest9-21ksoftirqd/023:31:170
190319986,1cyclictest9-21ksoftirqd/023:19:590
190319986,1cyclictest9-21ksoftirqd/023:04:590
190319986,1cyclictest9-21ksoftirqd/021:50:140
190319986,1cyclictest9-21ksoftirqd/021:05:010
190319984,2cyclictest240-21systemd-journal21:45:120
190319984,2cyclictest240-21systemd-journal00:15:000
190319982,5cyclictest13266-21perf20:05:000
190319980,4cyclictest8670-21perf00:40:000
190319980,1cyclictest287922sleep019:25:460
23405270,1sleep30-21swapper/320:25:143
190569977,0cyclictest35-21ksoftirqd/322:44:273
190569976,1cyclictest35-21ksoftirqd/323:35:013
190569976,1cyclictest35-21ksoftirqd/323:14:423
190569976,1cyclictest35-21ksoftirqd/319:34:593
190569976,1cyclictest20423-21cat22:45:153
190569975,1cyclictest7269-21cat19:50:143
190569975,1cyclictest6721-21ssh21:45:063
190569975,1cyclictest35-21ksoftirqd/320:20:003
190569975,1cyclictest28355-21ssh23:39:443
190569975,1cyclictest10723-21cat23:15:163
190569974,1cyclictest13650irq/124-ahci[0022:14:553
190569973,3cyclictest9355-21apt-get21:05:123
190569971,4cyclictest29989-21apt-get20:40:103
190569971,4cyclictest17348-21kworker/u8:123:52:313
190569970,6cyclictest25411-21ssh22:51:223
190569970,5cyclictest1982-21sendmail-mta22:24:363
190569970,3cyclictest0-21swapper/300:03:413
190569970,1cyclictest0-21swapper/319:45:133
190449976,1cyclictest61650irq/122-eno123:05:122
190449976,1cyclictest61650irq/122-eno123:04:592
190449976,1cyclictest61650irq/122-eno122:06:012
190449976,1cyclictest61650irq/122-eno121:28:582
190449976,1cyclictest61650irq/122-eno121:24:012
190449976,1cyclictest61650irq/122-eno121:19:182
190449976,1cyclictest61650irq/122-eno119:50:202
190449976,1cyclictest61650irq/122-eno119:35:112
190449976,1cyclictest61650irq/122-eno119:25:142
190449976,1cyclictest61650irq/122-eno100:02:022
190449975,1cyclictest61650irq/122-eno122:10:142
190449975,1cyclictest61650irq/122-eno121:45:172
190449975,1cyclictest29873-21ssh21:31:192
190449974,2cyclictest1-21systemd22:39:082
190449973,1cyclictest240-21systemd-journal20:19:592
190449970,6cyclictest2978-21ssh21:40:082
190449970,2cyclictest17311-21apt-get23:25:122
190369971,2cyclictest0-21swapper/119:52:081
190369970,6cyclictest0-21swapper/121:50:121
190369970,6cyclictest0-21swapper/100:05:171
190369970,4cyclictest0-21swapper/121:10:001
190369970,4cyclictest0-21swapper/119:35:101
190369970,1cyclictest0-21swapper/121:10:141
190319976,1cyclictest7510-21ntpq19:50:170
190319976,1cyclictest733-21sshd20:25:070
190319976,1cyclictest5640-21ssh21:42:430
190319975,1cyclictest9-21ksoftirqd/020:15:000
190319974,2cyclictest11716-21cron22:35:000
190319974,1cyclictest9-21ksoftirqd/020:34:590
190319974,1cyclictest548-21systemd-logind20:17:070
190319973,2cyclictest240-21systemd-journal21:29:110
190319970,6cyclictest30560-21sh23:40:230
190319970,6cyclictest29172-21latency_hist22:14:590
190319970,6cyclictest2000-21awk22:20:180
190319970,6cyclictest18829-21fschecks_time22:00:140
190319970,6cyclictest0-21swapper/020:50:130
190319970,1cyclictest560-21fschecks_time20:45:150
190319970,1cyclictest4997-21ntp_states23:50:150
190319970,1cyclictest31986-21ssh22:17:340
190319970,1cyclictest0-21swapper/023:05:150
190319970,1cyclictest0-21swapper/022:40:130
28181260,0sleep20-21swapper/220:35:142
190569965,1cyclictest7023-21ssh22:27:243
190569965,1cyclictest3539-21ssh00:31:233
190569965,1cyclictest35-21ksoftirqd/320:05:013
190569965,1cyclictest30006-21ssh00:25:043
190569965,1cyclictest22600-21sshd21:22:523
190569965,1cyclictest22545-21ssh00:15:103
190569965,1cyclictest19202-21ssh23:25:363
190569965,1cyclictest15942-21ssh23:22:013
190569965,1cyclictest15698-21ssh21:15:033
190569965,1cyclictest10448-21ssh21:50:073
190569965,1cyclictest10144-21ssh22:30:363
190569964,1cyclictest32735-21ssh23:00:493
190569963,1cyclictest240-21systemd-journal20:39:543
190569963,0cyclictest11489-21diskmemload21:36:113
190569962,2cyclictest21592-21fschecks_count19:15:003
190569962,2cyclictest13463-21apt-get20:05:103
190569962,2cyclictest11489-21diskmemload23:40:403
190569962,1cyclictest13735-21ssh21:10:273
190569962,1cyclictest11489-21diskmemload00:10:023
190569961,2cyclictest0-21swapper/321:55:143
190569960,4cyclictest0-21swapper/323:58:143
190569960,3cyclictest0-21swapper/300:20:243
190569960,1cyclictest0-21swapper/323:45:123
190449966,0cyclictest61650irq/122-eno123:55:172
190449966,0cyclictest61650irq/122-eno123:11:222
190449966,0cyclictest61650irq/122-eno122:55:112
190449966,0cyclictest61650irq/122-eno122:50:192
190449966,0cyclictest61650irq/122-eno122:45:192
190449966,0cyclictest61650irq/122-eno122:30:212
190449966,0cyclictest61650irq/122-eno120:52:552
190449966,0cyclictest61650irq/122-eno120:46:312
190449966,0cyclictest61650irq/122-eno120:33:132
190449966,0cyclictest61650irq/122-eno120:25:102
190449966,0cyclictest61650irq/122-eno120:08:112
190449966,0cyclictest61650irq/122-eno119:57:102
190449966,0cyclictest61650irq/122-eno119:10:062
190449966,0cyclictest61650irq/122-eno100:15:052
190449966,0cyclictest61650irq/122-eno100:10:122
190449965,1cyclictest61650irq/122-eno121:00:182
190449965,1cyclictest61650irq/122-eno100:30:102
190449965,1cyclictest61650irq/122-eno100:05:122
190449964,1cyclictest61650irq/122-eno123:45:132
190449964,1cyclictest18185-21ssh22:00:082
190449962,3cyclictest22663-21cron20:25:002
190449962,2cyclictest240-21systemd-journal19:24:592
190449961,4cyclictest22292-21apt-get19:15:142
190449961,3cyclictest0-21swapper/223:15:102
190449961,1cyclictest0-21swapper/219:40:102
190449960,6cyclictest0-21swapper/223:35:122
190449960,1cyclictest0-21swapper/200:25:122
190369961,3cyclictest0-21swapper/122:37:461
190369960,6cyclictest0-21swapper/123:38:551
190369960,6cyclictest0-21swapper/122:58:361
190369960,6cyclictest0-21swapper/120:39:471
190369960,6cyclictest0-21swapper/120:06:131
190369960,5cyclictest0-21swapper/122:45:151
190369960,5cyclictest0-21swapper/119:25:161
190369960,4cyclictest0-21swapper/122:44:491
190369960,3cyclictest0-21swapper/123:40:171
190369960,3cyclictest0-21swapper/121:00:191
190369960,3cyclictest0-21swapper/100:34:291
190369960,3cyclictest0-21swapper/100:02:351
190319964,1cyclictest9-21ksoftirqd/020:05:140
190319964,1cyclictest9-21ksoftirqd/019:15:020
190319964,1cyclictest9-21ksoftirqd/019:14:590
190319961,2cyclictest0-21swapper/019:45:200
190319960,5cyclictest1727-21cut19:40:110
190319960,5cyclictest0-21swapper/020:35:090
190319960,5cyclictest0-21swapper/019:20:120
190319960,0cyclictest0-21swapper/020:43:520
190319960,0cyclictest0-21swapper/020:22:260
190319960,0cyclictest0-21swapper/019:55:480
190319960,0cyclictest0-21swapper/019:31:460
190319960,0cyclictest0-21swapper/000:15:100
190569955,0cyclictest21591-21kworker/3:219:55:023
190569955,0cyclictest17263-21kworker/3:020:50:593
190569955,0cyclictest0-21swapper/323:06:123
190569954,1cyclictest35-21ksoftirqd/319:30:003
190569954,1cyclictest26063-21sensors19:20:203
190569953,1cyclictest979-21grep19:35:203
190569953,1cyclictest6983-21chrt21:00:013
190569953,1cyclictest17803-21seq20:13:293
190569952,1cyclictest294-21systemd-udevd00:05:073
190569952,1cyclictest26990-21sh22:55:073
190569952,1cyclictest21082-21fschecks_count20:20:133
190569951,2cyclictest23629-21unixbench-2d22:05:213
190569950,5cyclictest745-21lldpd22:16:273
190449955,0cyclictest61650irq/122-eno120:55:022
190449953,1cyclictest61650irq/122-eno120:40:112
190369955,0cyclictest0-21swapper/121:25:031
190369955,0cyclictest0-21swapper/119:58:421
190369955,0cyclictest0-21swapper/119:34:501
190369953,1cyclictest0-21swapper/121:45:131
190369952,2cyclictest0-21swapper/120:50:151
190369951,2cyclictest0-21swapper/123:15:001
190369951,2cyclictest0-21swapper/121:56:431
190369951,2cyclictest0-21swapper/121:21:571
190369951,1cyclictest0-21swapper/123:50:251
190369950,5cyclictest0-21swapper/123:20:461
190369950,5cyclictest0-21swapper/122:20:341
190369950,5cyclictest0-21swapper/121:40:141
190369950,5cyclictest0-21swapper/121:36:231
190369950,5cyclictest0-21swapper/120:15:041
190369950,4cyclictest0-21swapper/123:20:001
190369950,3cyclictest0-21swapper/123:55:261
190369950,3cyclictest0-21swapper/123:45:151
190369950,3cyclictest0-21swapper/122:10:061
190369950,3cyclictest0-21swapper/120:55:171
190369950,3cyclictest0-21swapper/120:27:501
190369950,3cyclictest0-21swapper/100:27:061
190369950,2cyclictest0-21swapper/123:06:401
190369950,2cyclictest0-21swapper/121:30:181
190369950,2cyclictest0-21swapper/120:20:161
190369950,2cyclictest0-21swapper/119:15:131
190369950,1cyclictest0-21swapper/119:20:211
190369950,0cyclictest0-21swapper/119:44:241
190369950,0cyclictest0-21swapper/100:15:251
190319950,4cyclictest32529-21/usr/sbin/munin19:35:140
18517250,1sleep10-21swapper/100:09:591
10416250,0sleep10-21swapper/122:31:231
190569943,1cyclictest3023-21systemctl19:40:193
190569941,1cyclictest0-21swapper/320:55:103
190569940,0cyclictest0-21swapper/320:30:123
190449944,0cyclictest61650irq/122-eno120:10:122
190369941,1cyclictest0-21swapper/120:45:121
190369940,4cyclictest0-21swapper/120:40:181
190369940,3cyclictest0-21swapper/123:30:221
190369940,3cyclictest0-21swapper/120:10:111
190369940,3cyclictest0-21swapper/120:00:141
190369940,3cyclictest0-21swapper/119:45:191
190369940,2cyclictest0-21swapper/122:05:531
190369940,2cyclictest0-21swapper/100:20:231
190369940,1cyclictest0-21swapper/123:25:111
190369940,1cyclictest0-21swapper/122:25:121
190369940,1cyclictest0-21swapper/122:15:301
190369940,1cyclictest0-21swapper/121:15:101
190369940,0cyclictest0-21swapper/123:01:191
190369931,1cyclictest0-21swapper/119:10:121
190369930,2cyclictest0-21swapper/120:30:191
190369930,1cyclictest0-21swapper/122:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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