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2026-03-18 - 04:49
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Wed Mar 18, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106682210171,26sleep30-21swapper/319:08:313
107172204149,41sleep00-21swapper/019:09:080
104522200162,25sleep10-21swapper/119:05:401
107712196158,25sleep20-21swapper/219:09:512
260252700,0sleep10-21swapper/121:35:191
10874991312,1cyclictest0-21swapper/200:35:122
10860991311,1cyclictest9-21ksoftirqd/020:00:000
10885991211,1cyclictest35-21ksoftirqd/321:35:013
1088599119,1cyclictest35-21ksoftirqd/300:24:593
10874991110,1cyclictest27171-21sh21:37:082
1088599109,1cyclictest35-21ksoftirqd/322:55:143
1088599109,1cyclictest35-21ksoftirqd/322:40:003
1088599108,2cyclictest35-21ksoftirqd/322:55:003
1088599108,1cyclictest35-21ksoftirqd/300:15:013
10885991010,0cyclictest35-21ksoftirqd/300:05:193
1087499100,7cyclictest24254-21kworker/u8:122:20:022
1086899100,5cyclictest0-21swapper/100:05:191
1086099109,1cyclictest9-21ksoftirqd/023:20:000
1086099100,4cyclictest0-21swapper/023:35:120
108859998,1cyclictest35-21ksoftirqd/322:04:593
108859998,1cyclictest35-21ksoftirqd/320:45:013
108859997,1cyclictest3952-21diskmemload21:49:013
108859997,1cyclictest35-21ksoftirqd/319:20:013
108749998,1cyclictest28-21ksoftirqd/220:20:002
108749997,1cyclictest3952-21diskmemload23:58:472
108749994,3cyclictest635-21unixbench_singl00:30:232
108749990,6cyclictest3952-21diskmemload22:54:482
108609997,1cyclictest9-21ksoftirqd/020:04:590
108609990,5cyclictest12408-21latency_hist20:20:010
108859986,1cyclictest707-21snmpd23:10:043
108859986,1cyclictest707-21snmpd22:47:363
108859986,1cyclictest707-21snmpd20:00:343
108859986,1cyclictest707-21snmpd19:59:403
108859986,1cyclictest707-21snmpd19:27:443
108859986,1cyclictest35-21ksoftirqd/320:45:123
108859986,1cyclictest0-21swapper/321:00:133
108859981,4cyclictest5266-21rm21:10:163
108859980,1cyclictest0-21swapper/322:40:113
108749988,0cyclictest61650irq/122-eno100:21:572
108749986,1cyclictest707-21snmpd21:12:512
108749986,1cyclictest707-21snmpd21:03:472
108749986,1cyclictest61650irq/122-eno123:40:172
108749986,1cyclictest61650irq/122-eno122:35:122
108749986,1cyclictest61650irq/122-eno122:10:152
108749986,1cyclictest61650irq/122-eno121:57:222
108749986,1cyclictest61650irq/122-eno121:45:172
108749986,1cyclictest61650irq/122-eno121:25:122
108749986,1cyclictest61650irq/122-eno121:10:002
108749986,1cyclictest61650irq/122-eno100:29:472
108749986,1cyclictest61650irq/122-eno100:10:172
108749986,1cyclictest28-21ksoftirqd/219:20:012
108749981,5cyclictest21654-21diskmemload00:16:232
108749980,1cyclictest0-21swapper/222:15:542
108609987,1cyclictest22623-21ssh00:18:540
108609987,1cyclictest21210-21ssh22:53:420
108609986,1cyclictest707-21snmpd21:36:310
108609986,1cyclictest707-21snmpd20:51:170
108609986,1cyclictest17622-21ssh22:06:140
108609986,1cyclictest16574-21ntpq00:10:180
108609982,5cyclictest101rcuc/000:25:000
108609981,6cyclictest17292-21/usr/sbin/munin20:30:210
108609981,1cyclictest16122-21ssh22:45:290
108609980,7cyclictest30895-21chrt23:47:060
108609980,7cyclictest20049-21taskset21:29:360
108859977,0cyclictest35-21ksoftirqd/322:25:003
108859977,0cyclictest35-21ksoftirqd/321:30:013
108859977,0cyclictest35-21ksoftirqd/320:20:143
108859976,1cyclictest35-21ksoftirqd/323:15:143
108859976,1cyclictest35-21ksoftirqd/323:05:003
108859976,1cyclictest35-21ksoftirqd/322:30:003
108859976,1cyclictest35-21ksoftirqd/321:20:133
108859975,1cyclictest707-21snmpd21:54:013
108859975,1cyclictest707-21snmpd19:35:123
108859975,1cyclictest707-21snmpd19:30:033
108859975,1cyclictest707-21snmpd00:36:393
108859975,1cyclictest4909-21ssh22:32:083
108859975,1cyclictest35-21ksoftirqd/323:05:183
108859975,1cyclictest35-21ksoftirqd/322:20:013
108859975,1cyclictest25442-21cat23:40:153
108859975,1cyclictest10426-21ssh21:57:413
108859973,0cyclictest3952-21diskmemload21:35:273
108859972,4cyclictest5494-21apt-get20:05:103
108859970,4cyclictest0-21swapper/323:20:133
108859970,2cyclictest0-21swapper/322:14:303
108859970,2cyclictest0-21swapper/300:01:043
108859970,1cyclictest0-21swapper/323:54:143
108859970,1cyclictest0-21swapper/323:28:343
108859970,1cyclictest0-21swapper/321:05:123
108749977,0cyclictest0-21swapper/223:16:132
108749976,1cyclictest61650irq/122-eno123:37:322
108749976,1cyclictest61650irq/122-eno122:45:132
108749976,1cyclictest61650irq/122-eno122:40:132
108749976,1cyclictest61650irq/122-eno122:30:122
108749976,1cyclictest61650irq/122-eno120:53:352
108749976,1cyclictest61650irq/122-eno100:04:442
108749976,1cyclictest28-21ksoftirqd/223:00:142
108749975,1cyclictest707-21snmpd21:20:322
108749975,1cyclictest61650irq/122-eno120:20:172
108749970,6cyclictest0-21swapper/219:37:142
108689971,1cyclictest0-21swapper/121:48:481
108689970,6cyclictest0-21swapper/123:21:221
108689970,5cyclictest0-21swapper/122:05:051
108689970,5cyclictest0-21swapper/120:00:161
108689970,4cyclictest0-21swapper/121:13:041
108689970,4cyclictest0-21swapper/120:30:131
108689970,1cyclictest0-21swapper/121:00:131
108689970,1cyclictest0-21swapper/120:21:491
108689970,1cyclictest0-21swapper/120:18:401
108609976,1cyclictest9-21ksoftirqd/019:45:090
108609976,1cyclictest707-21snmpd21:06:020
108609976,1cyclictest4012-21telnet21:50:110
108609976,1cyclictest30692-1kworker/u9:221:42:360
108609975,1cyclictest9275-21taskset22:38:230
108609975,1cyclictest707-21snmpd20:45:530
108609975,1cyclictest707-21snmpd20:23:180
108609975,1cyclictest707-21snmpd20:07:090
108609975,1cyclictest707-21snmpd19:32:180
108609975,1cyclictest707-21snmpd00:06:150
108609975,1cyclictest32244-21ssh23:50:050
108609975,1cyclictest24145-21cat22:15:130
108609975,1cyclictest17073-21perf20:30:010
108609974,1cyclictest240-21systemd-journal19:15:000
108609971,5cyclictest733-21sshd22:41:100
108609970,6cyclictest8083-21ssh21:15:030
108609970,6cyclictest5215-21ssh00:37:120
108609970,6cyclictest29458-21apt-get23:05:010
108609970,6cyclictest2377-21ssh21:46:510
108609970,6cyclictest2332-21ssh00:34:450
108609970,6cyclictest22732-21ssh21:31:160
108609970,6cyclictest17865-21awk19:20:170
108609970,6cyclictest13225-21munin-node19:54:140
108609970,6cyclictest0-21swapper/023:10:050
108609970,6cyclictest0-21swapper/022:56:180
108609970,6cyclictest0-21swapper/022:20:100
108609970,4cyclictest0-21swapper/019:15:110
108609970,3cyclictest12970-21apt-get23:25:110
108609970,2cyclictest0-21swapper/021:20:110
108609970,1cyclictest9630-21ssh21:55:360
108609970,1cyclictest7482-21ls00:00:010
108609970,1cyclictest4268-21ssh22:30:290
108609970,1cyclictest3952-21diskmemload22:26:160
108609970,1cyclictest27685-21ssh23:00:240
108609970,1cyclictest24507-21ssh23:40:040
108609970,1cyclictest23577-21head19:35:110
108609970,1cyclictest21694-21taskset22:11:460
108609970,1cyclictest19436-21ssh23:32:300
108609970,1cyclictest0-21swapper/023:20:120
108609970,1cyclictest0-21swapper/020:55:200
8776260,0sleep10-21swapper/120:10:161
3840260,1sleep10-21swapper/121:50:061
30852260,0sleep10-21swapper/121:41:321
108859966,0cyclictest35-21ksoftirqd/323:30:123
108859965,1cyclictest5862-21ssh23:56:113
108859965,1cyclictest35-21ksoftirqd/320:52:323
108859965,1cyclictest35-21ksoftirqd/320:37:333
108859965,1cyclictest35-21ksoftirqd/320:25:133
108859965,1cyclictest35-21ksoftirqd/320:15:003
108859965,1cyclictest30672-21ssh21:41:023
108859965,1cyclictest21583-21cat23:35:163
108859965,1cyclictest18412-21ssh22:08:173
108859965,1cyclictest10861-21ssh21:17:243
108859964,1cyclictest707-21snmpd19:12:353
108859964,1cyclictest35-21ksoftirqd/323:47:343
108859964,1cyclictest35-21ksoftirqd/319:45:123
108859964,1cyclictest35-21ksoftirqd/300:15:133
108859964,1cyclictest30369-21ssh00:28:213
108859960,2cyclictest0-21swapper/300:33:073
108749966,0cyclictest61650irq/122-eno123:45:202
108749966,0cyclictest61650irq/122-eno123:20:072
108749966,0cyclictest61650irq/122-eno123:10:122
108749966,0cyclictest61650irq/122-eno123:05:162
108749966,0cyclictest61650irq/122-eno122:55:132
108749966,0cyclictest61650irq/122-eno122:25:482
108749966,0cyclictest61650irq/122-eno122:05:182
108749966,0cyclictest61650irq/122-eno121:50:162
108749966,0cyclictest61650irq/122-eno121:40:142
108749966,0cyclictest61650irq/122-eno121:30:072
108749966,0cyclictest61650irq/122-eno121:15:552
108749966,0cyclictest61650irq/122-eno120:55:282
108749966,0cyclictest61650irq/122-eno120:25:132
108749966,0cyclictest61650irq/122-eno120:15:012
108749966,0cyclictest61650irq/122-eno120:09:122
108749966,0cyclictest61650irq/122-eno119:48:572
108749966,0cyclictest61650irq/122-eno119:41:512
108749966,0cyclictest61650irq/122-eno119:25:152
108749966,0cyclictest61650irq/122-eno119:11:292
108749966,0cyclictest61650irq/122-eno100:05:122
108749965,1cyclictest61650irq/122-eno123:50:102
108749965,1cyclictest61650irq/122-eno120:01:432
108749964,1cyclictest61650irq/122-eno122:00:142
108749964,1cyclictest61650irq/122-eno119:20:132
108749964,1cyclictest28-21ksoftirqd/220:43:552
108749964,1cyclictest0-21swapper/223:25:142
108749963,2cyclictest19731-21cut20:35:122
108749962,1cyclictest548-21systemd-logind23:30:202
108749960,1cyclictest0-21swapper/219:55:102
108689966,0cyclictest0-21swapper/100:35:101
108689965,1cyclictest0-21swapper/100:33:491
108689961,4cyclictest0-21swapper/121:15:101
108689961,2cyclictest0-21swapper/122:45:091
108689961,1cyclictest0-21swapper/122:50:101
108689960,6cyclictest0-21swapper/123:58:121
108689960,6cyclictest0-21swapper/123:53:151
108689960,6cyclictest0-21swapper/123:45:501
108689960,6cyclictest0-21swapper/123:40:381
108689960,6cyclictest0-21swapper/122:42:091
108689960,6cyclictest0-21swapper/122:23:081
108689960,6cyclictest0-21swapper/121:24:121
108689960,6cyclictest0-21swapper/120:07:281
108689960,6cyclictest0-21swapper/119:32:561
108689960,6cyclictest0-21swapper/100:16:211
108689960,6cyclictest0-21swapper/100:02:331
108689960,5cyclictest0-21swapper/119:24:571
108689960,5cyclictest0-21swapper/100:28:551
108689960,2cyclictest0-21swapper/122:55:151
108689960,1cyclictest0-21swapper/123:14:011
108689960,1cyclictest0-21swapper/122:15:061
108689960,1cyclictest0-21swapper/120:47:221
108689960,1cyclictest0-21swapper/119:43:181
108609965,1cyclictest7659-21/usr/sbin/munin00:00:120
108609965,1cyclictest4346-21telnet21:10:130
108609965,1cyclictest23230-21ntpq20:40:150
108609964,1cyclictest707-21snmpd20:35:020
108609960,6cyclictest0-21swapper/022:00:010
108609960,0cyclictest0-21swapper/021:00:110
108609960,0cyclictest0-21swapper/020:14:000
108609960,0cyclictest0-21swapper/019:41:230
108609960,0cyclictest0-21swapper/000:26:110
108859954,1cyclictest35-21ksoftirqd/320:30:133
108859954,1cyclictest35-21ksoftirqd/319:50:133
108859954,1cyclictest35-21ksoftirqd/319:40:193
108859954,0cyclictest0-21swapper/320:55:123
108859953,1cyclictest35-21ksoftirqd/320:15:123
108859951,3cyclictest16493-21apt-get19:20:113
108749955,0cyclictest61650irq/122-eno119:30:192
108749954,1cyclictest61650irq/122-eno119:54:142
108749954,1cyclictest18439-21ntpq20:30:182
108749950,1cyclictest24415-21/usr/sbin/munin20:45:192
108689954,1cyclictest0-21swapper/119:45:141
108689953,1cyclictest82142sleep122:35:351
108689952,1cyclictest0-21swapper/100:12:291
108689951,4cyclictest0-21swapper/123:08:281
108689951,4cyclictest0-21swapper/121:27:461
108689951,1cyclictest0-21swapper/121:30:201
108689950,5cyclictest0-21swapper/122:31:061
108689950,5cyclictest0-21swapper/122:10:211
108689950,5cyclictest0-21swapper/119:36:361
108689950,4cyclictest0-21swapper/120:40:131
108689950,3cyclictest0-21swapper/123:18:031
108689950,3cyclictest0-21swapper/121:59:141
108689950,3cyclictest0-21swapper/120:55:121
108689950,2cyclictest0-21swapper/123:01:281
108689950,2cyclictest0-21swapper/122:25:521
108689950,2cyclictest0-21swapper/120:35:191
108689950,2cyclictest0-21swapper/100:20:111
108689950,1cyclictest0-21swapper/122:00:181
108609950,5cyclictest0-21swapper/019:25:150
108689942,1cyclictest12938-21chrt23:25:041
108689940,4cyclictest0-21swapper/119:58:101
108689940,4cyclictest0-21swapper/119:15:001
108689940,3cyclictest0-21swapper/123:35:161
108689940,3cyclictest0-21swapper/120:25:121
108689940,3cyclictest0-21swapper/119:30:001
108689940,2cyclictest0-21swapper/123:30:141
108689940,2cyclictest0-21swapper/121:05:191
108689940,2cyclictest0-21swapper/120:50:141
108689940,1cyclictest0-21swapper/119:54:591
108689940,1cyclictest0-21swapper/119:10:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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