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2026-01-07 - 17:16
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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 Wed Jan 07, 2026 12:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
161372207156,26sleep30-21swapper/307:09:083
161662205149,42sleep00-21swapper/007:09:300
159292202149,41sleep10-21swapper/107:06:241
158832200162,25sleep20-21swapper/207:05:492
176902550,0sleep00-21swapper/010:35:130
230952410,1sleep223097-21aten_r1power_fr11:55:132
16308991514,1cyclictest35-21ksoftirqd/307:35:223
1628199140,13cyclictest4774-21unixbench-2d10:05:230
1630899124,5cyclictest35-21ksoftirqd/311:05:133
1630899119,1cyclictest35-21ksoftirqd/309:00:003
1629999119,1cyclictest28-21ksoftirqd/211:05:002
1629999110,10cyclictest15954-21apt-get11:40:092
1628199119,1cyclictest9-21ksoftirqd/010:15:000
1628199113,4cyclictest15514-21munin-run11:40:010
16281991110,1cyclictest9-21ksoftirqd/011:50:000
1629999109,1cyclictest28-21ksoftirqd/209:40:182
1629999109,1cyclictest28-21ksoftirqd/208:20:002
1629999108,1cyclictest28-21ksoftirqd/210:45:002
1629999108,1cyclictest28-21ksoftirqd/210:25:142
1629999108,1cyclictest28-21ksoftirqd/209:30:192
1629999108,1cyclictest28-21ksoftirqd/208:59:592
1629999108,1cyclictest28-21ksoftirqd/208:50:002
1629999100,5cyclictest0-21swapper/209:15:202
1628199101,4cyclictest5936-21latency_hist11:20:000
163089998,1cyclictest35-21ksoftirqd/312:15:123
163089998,1cyclictest35-21ksoftirqd/310:25:003
163089998,1cyclictest35-21ksoftirqd/308:45:103
163089997,1cyclictest35-21ksoftirqd/312:35:013
162999998,1cyclictest28-21ksoftirqd/211:54:592
162999998,1cyclictest28-21ksoftirqd/211:25:132
162999998,1cyclictest28-21ksoftirqd/211:25:132
162999998,1cyclictest28-21ksoftirqd/209:50:002
162999998,0cyclictest28-21ksoftirqd/209:35:132
162999997,1cyclictest28-21ksoftirqd/212:30:112
162999997,1cyclictest28-21ksoftirqd/210:50:002
162999997,1cyclictest28-21ksoftirqd/210:00:002
162999997,1cyclictest28-21ksoftirqd/209:20:112
162999997,1cyclictest28-21ksoftirqd/209:05:142
162999991,8cyclictest0-21swapper/210:17:082
162999990,8cyclictest10674-21cron08:04:592
162999990,3cyclictest0-21swapper/212:10:102
162819991,4cyclictest7141-21perf12:30:010
162819991,4cyclictest7141-21perf12:30:010
162819990,2cyclictest240-21systemd-journal07:15:010
163089988,0cyclictest35-21ksoftirqd/311:50:173
163089988,0cyclictest35-21ksoftirqd/309:10:203
163089987,1cyclictest707-21snmpd10:41:353
163089987,1cyclictest35-21ksoftirqd/309:35:143
163089987,1cyclictest35-21ksoftirqd/308:42:143
163089987,1cyclictest35-21ksoftirqd/307:15:003
163089986,1cyclictest707-21snmpd12:20:523
163089986,1cyclictest707-21snmpd11:13:263
163089986,1cyclictest707-21snmpd11:02:573
163089986,1cyclictest707-21snmpd10:07:143
163089986,1cyclictest707-21snmpd08:15:433
163089986,1cyclictest707-21snmpd08:04:193
163089986,1cyclictest35-21ksoftirqd/310:15:003
163089986,1cyclictest30304-21apt-get12:10:113
163089983,3cyclictest25882-21hwlatdetect08:35:143
162999987,1cyclictest28-21ksoftirqd/211:05:172
162999987,1cyclictest28-21ksoftirqd/207:51:502
162999986,1cyclictest707-21snmpd09:53:202
162999986,1cyclictest61650irq/122-eno108:05:122
162999986,1cyclictest61650irq/122-eno107:25:132
162999986,1cyclictest61650irq/122-eno107:15:132
162999986,1cyclictest28942-21munin-run07:35:012
162999986,1cyclictest28-21ksoftirqd/211:35:112
162999986,1cyclictest28-21ksoftirqd/208:40:012
162999986,1cyclictest28-21ksoftirqd/208:25:152
162999986,1cyclictest1069-21kworker/2:211:30:162
162999985,3cyclictest61650irq/122-eno107:45:092
162999984,3cyclictest28-21ksoftirqd/212:15:132
162999980,4cyclictest0-21swapper/211:20:122
162819986,1cyclictest9-21ksoftirqd/009:09:590
162819986,1cyclictest9-21ksoftirqd/008:55:000
162819986,1cyclictest0-21swapper/009:35:140
162819985,1cyclictest9-21ksoftirqd/009:55:200
162819983,4cyclictest0-21swapper/010:45:140
163089976,1cyclictest6999-21cat11:20:163
163089976,1cyclictest35-21ksoftirqd/311:50:003
163089976,1cyclictest35-21ksoftirqd/309:20:123
163089976,1cyclictest35-21ksoftirqd/308:25:193
163089976,1cyclictest35-21ksoftirqd/308:20:183
163089976,1cyclictest29332-21cat09:50:143
163089975,1cyclictest707-21snmpd12:35:473
163089975,1cyclictest707-21snmpd12:07:223
163089975,1cyclictest707-21snmpd12:01:423
163089975,1cyclictest707-21snmpd11:15:113
163089975,1cyclictest707-21snmpd10:34:303
163089975,1cyclictest707-21snmpd09:25:103
163089975,1cyclictest707-21snmpd09:08:183
163089975,1cyclictest707-21snmpd07:43:463
163089975,1cyclictest707-21snmpd07:25:393
163089975,1cyclictest707-21snmpd07:18:003
163089975,1cyclictest35-21ksoftirqd/311:40:093
163089975,1cyclictest35-21ksoftirqd/308:10:153
163089975,1cyclictest35-21ksoftirqd/307:45:133
163089973,3cyclictest35-21ksoftirqd/310:50:123
163089972,4cyclictest0-21swapper/307:50:123
163089970,4cyclictest12588-21apt-get10:25:123
162999977,0cyclictest28-21ksoftirqd/210:35:122
162999976,1cyclictest61650irq/122-eno111:10:142
162999976,1cyclictest61650irq/122-eno108:30:112
162999976,1cyclictest61650irq/122-eno108:24:282
162999976,1cyclictest61650irq/122-eno107:10:012
162999976,1cyclictest509-21kworker/2:012:35:132
162999976,1cyclictest28-21ksoftirqd/212:25:142
162999976,1cyclictest28-21ksoftirqd/212:25:142
162999976,1cyclictest28-21ksoftirqd/212:05:172
162999976,1cyclictest28-21ksoftirqd/211:45:132
162999976,1cyclictest28-21ksoftirqd/209:00:132
162999976,1cyclictest28-21ksoftirqd/208:50:132
162999976,1cyclictest28-21ksoftirqd/207:40:202
162999976,1cyclictest28-21ksoftirqd/207:20:152
162999975,1cyclictest707-21snmpd11:18:442
162999975,1cyclictest707-21snmpd09:26:522
162999975,1cyclictest61650irq/122-eno112:25:012
162999975,1cyclictest28-21ksoftirqd/207:55:102
162999970,5cyclictest0-21swapper/210:55:132
162909971,6cyclictest0-21swapper/107:10:061
162909970,6cyclictest0-21swapper/108:13:171
162909970,2cyclictest0-21swapper/111:00:101
162819976,1cyclictest9-21ksoftirqd/009:04:590
162819976,1cyclictest9-21ksoftirqd/007:59:590
162819976,1cyclictest707-21snmpd10:52:130
162819976,1cyclictest707-21snmpd08:58:270
162819976,1cyclictest1679-21cat10:00:150
162819975,1cyclictest707-21snmpd12:24:280
162819975,1cyclictest707-21snmpd12:18:460
162819975,1cyclictest707-21snmpd10:25:590
162819975,1cyclictest707-21snmpd08:37:350
162819975,1cyclictest707-21snmpd08:34:530
162819975,1cyclictest707-21snmpd07:32:280
162819975,1cyclictest17586-21cat07:10:170
162819975,1cyclictest15828-21if_err_eno110:30:160
162819973,2cyclictest240-21systemd-journal11:45:000
162819973,1cyclictest240-21systemd-journal08:45:010
162819973,1cyclictest18002-21/usr/sbin/munin08:20:170
162819973,0cyclictest0-21swapper/009:25:140
162819971,5cyclictest3622-21perf07:50:000
162819971,5cyclictest13265-21/usr/sbin/munin08:10:150
162819970,6cyclictest8226-21irqstats12:30:140
162819970,6cyclictest7851-21/usr/sbin/munin10:15:150
162819970,6cyclictest29571-21cstates11:00:130
162819970,6cyclictest26396-21sshd07:27:440
162819970,6cyclictest24097-21cat09:40:130
162819970,6cyclictest22403-21users11:50:220
162819970,6cyclictest12525-21hddtemp_smartct09:15:150
162819970,6cyclictest0-21swapper/008:00:140
162819970,5cyclictest0-21swapper/011:25:120
162819970,5cyclictest0-21swapper/011:25:110
162819970,2cyclictest0-21swapper/008:45:200
162819970,1cyclictest31966-21diskstats11:05:140
162819970,1cyclictest31358-21latency_hist07:40:000
162819970,1cyclictest31148-21idleruntime12:10:130
162819970,1cyclictest1997-21cut11:10:150
163089966,0cyclictest35-21ksoftirqd/309:15:203
163089966,0cyclictest35-21ksoftirqd/308:30:153
163089965,1cyclictest35-21ksoftirqd/310:45:203
163089965,1cyclictest35-21ksoftirqd/310:35:153
163089965,1cyclictest35-21ksoftirqd/310:15:143
163089965,1cyclictest35-21ksoftirqd/309:55:203
163089965,1cyclictest35-21ksoftirqd/308:05:173
163089965,1cyclictest27878-21ntpq10:55:183
163089965,1cyclictest27236-21ntpq09:45:143
163089965,1cyclictest15427-21sshd11:39:133
163089964,1cyclictest707-21snmpd11:30:103
163089964,1cyclictest35-21ksoftirqd/309:00:213
163089963,1cyclictest240-21systemd-journal09:35:013
163089961,3cyclictest561-21nscd11:25:123
163089961,3cyclictest561-21nscd11:25:123
162999966,0cyclictest61650irq/122-eno110:51:592
162999966,0cyclictest61650irq/122-eno110:05:152
162999966,0cyclictest61650irq/122-eno110:00:102
162999964,1cyclictest61650irq/122-eno109:10:172
162999964,1cyclictest28-21ksoftirqd/212:00:132
162999964,1cyclictest28-21ksoftirqd/210:30:142
162999964,1cyclictest28-21ksoftirqd/210:20:152
162999964,1cyclictest28-21ksoftirqd/210:10:122
162999964,1cyclictest28-21ksoftirqd/208:10:122
162999964,1cyclictest28-21ksoftirqd/207:35:162
162909965,1cyclictest0-21swapper/110:44:311
162909961,3cyclictest0-21swapper/110:25:181
162909961,2cyclictest0-21swapper/108:50:181
162909960,6cyclictest0-21swapper/112:27:491
162909960,6cyclictest0-21swapper/112:27:491
162909960,6cyclictest0-21swapper/112:11:371
162909960,6cyclictest0-21swapper/111:25:471
162909960,6cyclictest0-21swapper/111:25:461
162909960,6cyclictest0-21swapper/110:05:531
162909960,6cyclictest0-21swapper/109:21:431
162909960,5cyclictest0-21swapper/110:30:151
162909960,5cyclictest0-21swapper/110:15:151
162909960,5cyclictest0-21swapper/107:44:341
162909960,5cyclictest0-21swapper/107:15:161
162909960,1cyclictest0-21swapper/111:42:471
162819965,1cyclictest7251-21ntpq11:20:180
162819964,1cyclictest707-21snmpd10:42:400
162819964,1cyclictest20870-21diskstats08:25:140
162819964,1cyclictest14092-21/usr/sbin/munin09:20:130
162819964,1cyclictest12952-21apt-get11:35:010
162819962,3cyclictest23383-21proc_pri07:20:180
162819961,5cyclictest11533-21perf09:14:590
162819960,6cyclictest0-21swapper/010:59:570
162819960,5cyclictest0-21swapper/009:45:090
162819960,5cyclictest0-21swapper/009:30:110
162819960,5cyclictest0-21swapper/008:05:100
162819960,5cyclictest0-21swapper/007:40:120
162819960,1cyclictest15621-21/usr/sbin/munin08:15:140
162819960,0cyclictest0-21swapper/012:39:570
162819960,0cyclictest0-21swapper/011:55:200
163089955,0cyclictest35-21ksoftirqd/308:50:143
163089954,1cyclictest35-21ksoftirqd/311:55:133
163089954,1cyclictest35-21ksoftirqd/307:20:203
163089953,1cyclictest2197-21sensors_temp10:00:193
163089952,1cyclictest240-21systemd-journal07:59:553
163089951,1cyclictest26823-21apt-get07:30:133
163089950,0cyclictest0-21swapper/309:40:003
162999954,1cyclictest61650irq/122-eno108:40:142
162909955,0cyclictest0-21swapper/108:40:241
162909955,0cyclictest0-21swapper/108:37:561
162909955,0cyclictest0-21swapper/107:59:171
162909952,3cyclictest0-21swapper/111:50:201
162909951,2cyclictest0-21swapper/111:20:161
162909951,2cyclictest0-21swapper/109:30:111
162909951,2cyclictest0-21swapper/108:00:201
162909951,1cyclictest0-21swapper/110:35:151
162909950,5cyclictest0-21swapper/112:17:001
162909950,5cyclictest0-21swapper/110:13:511
162909950,5cyclictest0-21swapper/110:02:391
162909950,5cyclictest0-21swapper/109:29:061
162909950,5cyclictest0-21swapper/109:17:521
162909950,5cyclictest0-21swapper/109:13:061
162909950,5cyclictest0-21swapper/108:08:261
162909950,5cyclictest0-21swapper/107:37:071
162909950,5cyclictest0-21swapper/107:25:551
162909950,5cyclictest0-21swapper/107:21:471
162909950,4cyclictest0-21swapper/111:55:161
162909950,4cyclictest0-21swapper/109:40:151
162909950,3cyclictest0-21swapper/109:05:121
162909950,3cyclictest0-21swapper/108:45:121
162909950,1cyclictest0-21swapper/112:35:121
162909950,0cyclictest0-21swapper/112:24:291
162819952,1cyclictest294-21systemd-udevd12:05:070
162819950,5cyclictest0-21swapper/009:50:160
162819950,4cyclictest27209-21sshd12:01:140
162819950,1cyclictest12121-21sshd10:22:130
162819950,0cyclictest0-21swapper/007:50:180
163089940,1cyclictest5476-21/usr/sbin/munin12:25:143
163089940,1cyclictest5476-21/usr/sbin/munin12:25:143
162909944,0cyclictest0-21swapper/110:51:501
162909944,0cyclictest0-21swapper/108:56:071
162909943,1cyclictest0-21swapper/111:15:181
162909942,1cyclictest0-21swapper/110:45:121
162909941,1cyclictest0-21swapper/111:05:131
162909941,1cyclictest0-21swapper/108:25:191
162909940,4cyclictest0-21swapper/112:30:221
162909940,4cyclictest0-21swapper/111:35:121
162909940,4cyclictest0-21swapper/111:32:121
162909940,4cyclictest0-21swapper/107:45:171
162909940,3cyclictest0-21swapper/108:31:301
162909940,3cyclictest0-21swapper/107:30:131
162909940,2cyclictest0-21swapper/110:55:151
162909940,2cyclictest0-21swapper/109:35:141
162909940,1cyclictest0-21swapper/112:00:121
162909940,1cyclictest0-21swapper/111:10:141
162909940,1cyclictest0-21swapper/110:20:331
162909940,1cyclictest0-21swapper/108:20:111
162909940,0cyclictest0-21swapper/109:03:051
162909940,0cyclictest0-21swapper/108:16:081
162909940,0cyclictest0-21swapper/107:50:211
31001230,1sleep10-21swapper/109:55:151
162909931,2cyclictest0-21swapper/112:05:011
162909931,1cyclictest0-21swapper/111:45:121
162909930,1cyclictest0-21swapper/109:50:101
162909930,1cyclictest0-21swapper/109:45:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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