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2026-01-02 - 21:14
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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 Fri Jan 02, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147442209170,25sleep30-21swapper/307:06:503
149172202164,24sleep00-21swapper/007:09:040
128762197159,25sleep20-21swapper/207:05:032
128752197158,26sleep10-21swapper/107:05:031
231072170,0sleep00-21swapper/008:30:170
197892170,0sleep10-21swapper/107:15:211
298332160,0sleep00-21swapper/012:10:150
15090991311,1cyclictest35-21ksoftirqd/307:49:593
1507699134,4cyclictest16902-21perf11:45:000
1509099110,4cyclictest24292-21apt-get08:35:083
1507699119,1cyclictest9-21ksoftirqd/012:35:010
1507699119,1cyclictest9-21ksoftirqd/012:35:000
1507699119,1cyclictest9-21ksoftirqd/011:25:010
15076991110,1cyclictest9-21ksoftirqd/010:49:590
1507699109,1cyclictest101rcuc/008:44:590
1507699108,1cyclictest9-21ksoftirqd/009:20:000
1507699108,1cyclictest9-21ksoftirqd/007:45:170
1507699100,0cyclictest0-21swapper/008:50:560
150909990,4cyclictest2131-21apt-get10:05:113
150819998,1cyclictest28-21ksoftirqd/211:51:432
150819991,6cyclictest548-21systemd-logind11:40:192
150769998,0cyclictest9-21ksoftirqd/009:50:130
150769997,1cyclictest9-21ksoftirqd/010:45:000
150769996,1cyclictest9-21ksoftirqd/009:10:000
150909986,1cyclictest707-21snmpd11:39:293
150909986,1cyclictest707-21snmpd10:56:093
150909986,1cyclictest707-21snmpd09:15:083
150909986,1cyclictest707-21snmpd08:50:153
150909986,1cyclictest707-21snmpd07:37:463
150909986,1cyclictest35-21ksoftirqd/308:49:593
150909981,4cyclictest16579-21apt-get08:20:013
150909980,4cyclictest0-21swapper/311:00:103
150819987,1cyclictest28-21ksoftirqd/209:20:102
150819986,1cyclictest707-21snmpd12:06:482
150819986,1cyclictest707-21snmpd11:47:082
150819986,1cyclictest707-21snmpd11:08:272
150819986,1cyclictest707-21snmpd10:32:242
150769987,1cyclictest9-21ksoftirqd/007:25:000
150769986,1cyclictest9-21ksoftirqd/011:20:010
150769986,1cyclictest9-21ksoftirqd/008:20:150
150769986,1cyclictest9-21ksoftirqd/008:05:000
150769986,1cyclictest707-21snmpd11:07:450
150769986,1cyclictest707-21snmpd09:23:040
150769986,1cyclictest707-21snmpd07:15:480
150769984,0cyclictest0-21swapper/010:26:110
150769981,6cyclictest0-21swapper/009:56:090
150769981,1cyclictest0-21swapper/008:08:560
150769980,1cyclictest0-21swapper/008:25:110
150769980,1cyclictest0-21swapper/008:25:110
150909976,1cyclictest35-21ksoftirqd/311:49:593
150909976,1cyclictest35-21ksoftirqd/310:45:013
150909975,1cyclictest707-21snmpd12:05:533
150909975,1cyclictest707-21snmpd11:58:173
150909975,1cyclictest707-21snmpd11:20:043
150909975,1cyclictest707-21snmpd11:10:213
150909975,1cyclictest707-21snmpd10:54:043
150909975,1cyclictest707-21snmpd10:23:563
150909975,1cyclictest707-21snmpd09:31:293
150909975,1cyclictest707-21snmpd09:27:083
150909975,1cyclictest707-21snmpd09:24:143
150909975,1cyclictest707-21snmpd08:40:333
150909975,1cyclictest22355-21ntpq10:45:183
150909975,1cyclictest22316-21sshd09:37:433
150909975,1cyclictest16166-21cat07:10:163
150909974,1cyclictest548-21systemd-logind09:55:193
150909974,1cyclictest548-21systemd-logind09:40:193
150909973,2cyclictest548-21systemd-logind11:30:203
150909973,2cyclictest548-21systemd-logind11:30:203
150909971,4cyclictest32195-21apt-get10:00:093
150819976,1cyclictest707-21snmpd12:18:082
150819976,1cyclictest707-21snmpd12:14:292
150819976,1cyclictest61650irq/122-eno111:00:102
150819976,1cyclictest61650irq/122-eno110:45:002
150819976,1cyclictest61650irq/122-eno109:10:132
150819976,1cyclictest61650irq/122-eno108:14:552
150819976,1cyclictest28-21ksoftirqd/208:20:002
150819976,0cyclictest61650irq/122-eno108:15:152
150819975,1cyclictest707-21snmpd12:21:382
150819975,1cyclictest61650irq/122-eno109:00:152
150819975,1cyclictest61650irq/122-eno108:50:002
150819975,1cyclictest61650irq/122-eno108:00:172
150819975,1cyclictest61650irq/122-eno107:25:182
150819975,1cyclictest26664-21/usr/sbin/munin08:40:182
150819973,2cyclictest240-21systemd-journal12:34:562
150819973,2cyclictest240-21systemd-journal12:34:552
150819972,3cyclictest27471-21apt-get09:50:112
150819971,6cyclictest0-21swapper/210:00:032
150819970,5cyclictest0-21swapper/212:36:102
150819970,4cyclictest0-21swapper/207:55:102
150819970,1cyclictest0-21swapper/211:33:162
150819970,1cyclictest0-21swapper/211:33:162
150819970,1cyclictest0-21swapper/209:16:582
150819970,1cyclictest0-21swapper/207:23:192
150789976,1cyclictest0-21swapper/111:32:011
150789976,1cyclictest0-21swapper/111:32:011
150789971,6cyclictest0-21swapper/109:50:291
150789970,6cyclictest0-21swapper/110:41:251
150789970,1cyclictest0-21swapper/110:23:501
150789970,1cyclictest0-21swapper/109:09:431
150769977,0cyclictest9-21ksoftirqd/008:10:120
150769977,0cyclictest9-21ksoftirqd/007:40:150
150769976,1cyclictest9-21ksoftirqd/011:00:120
150769976,1cyclictest9-21ksoftirqd/008:00:000
150769975,1cyclictest9-21ksoftirqd/009:40:130
150769975,1cyclictest707-21snmpd11:55:260
150769975,1cyclictest707-21snmpd09:27:460
150769975,1cyclictest10583-21sleep12:40:010
150769974,1cyclictest240-21systemd-journal12:10:010
150769973,1cyclictest23048-21/usr/sbin/munin07:25:160
150769971,5cyclictest19267-21latency_hist11:49:590
150769971,1cyclictest0-21swapper/011:50:380
150769971,0cyclictest18621-21basename10:40:000
150769970,6cyclictest1071-21df11:10:150
150769970,6cyclictest0-21swapper/011:35:190
150769970,6cyclictest0-21swapper/011:25:140
150769970,6cyclictest0-21swapper/009:10:020
150769970,1cyclictest25404-21/usr/sbin/munin07:30:140
150769970,1cyclictest0-21swapper/010:50:180
25921260,1sleep20-21swapper/207:30:182
150909965,1cyclictest707-21snmpd10:29:023
150909965,1cyclictest707-21snmpd07:31:473
150909965,1cyclictest35-21ksoftirqd/310:14:353
150909965,1cyclictest35-21ksoftirqd/309:00:003
150909965,1cyclictest35-21ksoftirqd/307:30:003
150909965,1cyclictest35-21ksoftirqd/307:16:433
150909964,1cyclictest707-21snmpd12:37:153
150909964,1cyclictest707-21snmpd12:25:153
150909964,1cyclictest707-21snmpd07:58:143
150909962,3cyclictest17036-21apt-get08:20:143
150909962,1cyclictest8352-21/usr/sbin/munin10:15:213
150909962,1cyclictest26449-21sendmail_mailqu09:45:213
150909961,4cyclictest707-21snmpd09:05:153
150909960,5cyclictest0-21swapper/312:12:293
150819966,0cyclictest61650irq/122-eno111:55:122
150819966,0cyclictest61650irq/122-eno111:36:432
150819966,0cyclictest61650irq/122-eno110:56:252
150819966,0cyclictest61650irq/122-eno110:48:332
150819966,0cyclictest61650irq/122-eno110:25:002
150819966,0cyclictest61650irq/122-eno110:23:402
150819966,0cyclictest61650irq/122-eno110:10:152
150819966,0cyclictest61650irq/122-eno110:09:592
150819966,0cyclictest61650irq/122-eno109:57:242
150819966,0cyclictest61650irq/122-eno108:59:432
150819966,0cyclictest61650irq/122-eno107:45:072
150819966,0cyclictest61650irq/122-eno107:10:162
150819965,1cyclictest61650irq/122-eno112:00:212
150819965,1cyclictest61650irq/122-eno110:35:142
150819965,1cyclictest3568-21ntpq07:50:192
150819965,1cyclictest26280-21ntpq09:45:192
150819965,1cyclictest10634-21cat08:05:152
150819965,1cyclictest0-21swapper/208:50:132
150819964,1cyclictest61650irq/122-eno111:20:122
150819964,1cyclictest61650irq/122-eno108:30:142
150819964,1cyclictest61650irq/122-eno107:35:202
150819963,2cyclictest26415-21idleruntime-cro08:40:002
150819963,2cyclictest16682-21chrt09:25:172
150819963,1cyclictest548-21systemd-logind11:10:222
150819962,2cyclictest240-21systemd-journal11:15:012
150789965,1cyclictest0-21swapper/112:05:591
150789963,0cyclictest0-21swapper/110:52:241
150789960,6cyclictest0-21swapper/112:25:301
150789960,6cyclictest0-21swapper/111:21:491
150789960,6cyclictest0-21swapper/110:00:381
150789960,6cyclictest0-21swapper/109:14:521
150789960,6cyclictest0-21swapper/107:47:011
150789960,6cyclictest0-21swapper/107:42:221
150789960,6cyclictest0-21swapper/107:27:061
150789960,5cyclictest0-21swapper/112:10:171
150789960,5cyclictest0-21swapper/108:15:211
150789960,1cyclictest0-21swapper/111:41:021
150789960,1cyclictest0-21swapper/110:05:501
150789960,1cyclictest0-21swapper/108:45:511
150769966,0cyclictest9-21ksoftirqd/010:00:180
150769965,1cyclictest9-21ksoftirqd/010:55:130
150769965,1cyclictest5560-21cat10:10:160
150769965,0cyclictest9-21ksoftirqd/008:15:180
150769964,1cyclictest9-21ksoftirqd/012:25:140
150769964,1cyclictest9-21ksoftirqd/012:25:000
150769964,1cyclictest29403-21cstates08:45:140
150769960,6cyclictest0-21swapper/012:17:080
150769960,6cyclictest0-21swapper/010:15:160
150769960,6cyclictest0-21swapper/008:58:040
150769960,5cyclictest0-21swapper/007:50:140
150769960,1cyclictest13487-21kworker/0:211:30:110
150769960,1cyclictest13487-21kworker/0:211:30:110
150769960,0cyclictest0-21swapper/009:39:230
150769960,0cyclictest0-21swapper/009:00:170
150909954,1cyclictest707-21snmpd09:02:033
150909954,1cyclictest2557-21ntpq12:20:183
150909953,1cyclictest9387-21tail09:10:153
150909953,1cyclictest707-21snmpd11:42:283
150909953,1cyclictest6881-21sed12:30:143
150909953,1cyclictest6881-21sed12:30:143
150909953,1cyclictest31168-21grep11:05:143
150909953,1cyclictest28262-21tail09:50:153
150909953,1cyclictest20789-21head07:20:123
150909952,0cyclictest21942-21apt-get08:30:103
150909951,2cyclictest21574-21latency_hist08:30:003
150909951,2cyclictest21574-21latency_hist08:30:003
150909951,1cyclictest9744-21apt-get08:05:113
150909951,1cyclictest2930-21apt-get11:15:133
150909950,5cyclictest0-21swapper/310:32:433
150909950,4cyclictest1145-21latency_hist12:20:013
150909950,1cyclictest9787-21munin-run11:30:003
150909950,1cyclictest0-21swapper/311:50:113
150819955,0cyclictest61650irq/122-eno112:25:112
150819955,0cyclictest61650irq/122-eno111:26:512
150819955,0cyclictest61650irq/122-eno110:50:122
150819955,0cyclictest61650irq/122-eno110:15:182
150819955,0cyclictest61650irq/122-eno109:30:142
150819955,0cyclictest61650irq/122-eno109:05:142
150819955,0cyclictest61650irq/122-eno108:25:372
150819955,0cyclictest61650irq/122-eno108:25:372
150819954,1cyclictest61650irq/122-eno107:15:122
150819953,1cyclictest20397-21basename09:35:102
150819950,5cyclictest0-21swapper/209:42:012
150819950,2cyclictest240-21systemd-journal07:40:012
150789955,0cyclictest0-21swapper/111:46:321
150789955,0cyclictest0-21swapper/109:15:371
150789953,1cyclictest144142sleep111:39:201
150789953,1cyclictest0-21swapper/108:55:131
150789951,4cyclictest0-21swapper/110:59:471
150789951,2cyclictest0-21swapper/107:50:131
150789950,5cyclictest0-21swapper/112:20:101
150789950,5cyclictest0-21swapper/111:25:211
150789950,5cyclictest0-21swapper/111:15:161
150789950,5cyclictest0-21swapper/110:34:291
150789950,5cyclictest0-21swapper/110:28:051
150789950,5cyclictest0-21swapper/110:16:591
150789950,5cyclictest0-21swapper/109:56:131
150789950,5cyclictest0-21swapper/109:38:331
150789950,5cyclictest0-21swapper/109:33:021
150789950,5cyclictest0-21swapper/109:00:151
150789950,5cyclictest0-21swapper/108:39:401
150789950,5cyclictest0-21swapper/108:08:521
150789950,2cyclictest0-21swapper/109:45:231
150789950,1cyclictest0-21swapper/107:10:121
150789950,0cyclictest0-21swapper/108:21:071
150769954,1cyclictest9-21ksoftirqd/010:30:210
150769954,1cyclictest9-21ksoftirqd/007:35:200
150769952,1cyclictest19171-21/usr/sbin/munin09:30:170
150769951,4cyclictest0-21swapper/010:20:130
150769950,5cyclictest0-21swapper/007:11:120
150769950,4cyclictest24174-21/usr/sbin/munin12:00:120
150769950,1cyclictest0-21swapper/008:35:120
150769950,0cyclictest0-21swapper/010:05:010
150769950,0cyclictest0-21swapper/009:45:200
150909942,1cyclictest7386-21/usr/sbin/munin08:00:173
150909942,1cyclictest693-21runrttasks07:40:563
150909942,1cyclictest3144-21grep07:50:163
150909942,1cyclictest25342-21ntp_states12:00:183
150909941,2cyclictest16481-21apt-get10:35:123
150909940,1cyclictest240-21systemd-journal08:10:013
150789944,0cyclictest0-21swapper/110:48:411
150789943,1cyclictest66602sleep110:13:221
150789943,1cyclictest24782sleep111:12:251
150789941,2cyclictest0-21swapper/108:50:151
150789940,4cyclictest0-21swapper/112:32:421
150789940,4cyclictest0-21swapper/112:32:421
150789940,4cyclictest0-21swapper/112:02:361
150789940,4cyclictest0-21swapper/111:07:521
150789940,4cyclictest0-21swapper/107:36:471
150789940,4cyclictest0-21swapper/107:25:001
150789940,3cyclictest7376-21taskset08:00:021
150789940,3cyclictest0-21swapper/110:40:001
150789940,3cyclictest0-21swapper/108:10:171
150789940,3cyclictest0-21swapper/107:55:121
150789940,2cyclictest0-21swapper/112:15:181
150789940,2cyclictest0-21swapper/109:40:131
150789940,1cyclictest0-21swapper/111:02:251
150789940,1cyclictest0-21swapper/109:20:151
150789940,0cyclictest0-21swapper/112:35:101
150789940,0cyclictest0-21swapper/108:26:571
150789940,0cyclictest0-21swapper/108:26:561
150789931,1cyclictest0-21swapper/111:55:131
150789931,1cyclictest0-21swapper/109:25:161
150789931,1cyclictest0-21swapper/108:40:101
150789931,1cyclictest0-21swapper/108:30:101
150789930,3cyclictest0-21swapper/107:30:231
150789930,2cyclictest0-21swapper/111:50:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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