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2026-05-04 - 08:09
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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 Mon May 04, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
46332215150,21sleep00-21swapper/019:06:360
48912209157,26sleep30-21swapper/319:09:573
27872202159,28sleep20-21swapper/219:05:092
48202199161,25sleep10-21swapper/119:09:021
4985991514,1cyclictest9-21ksoftirqd/022:35:160
5007991413,1cyclictest35-21ksoftirqd/322:20:003
5007991312,1cyclictest35-21ksoftirqd/322:35:163
499999130,12cyclictest0-21swapper/220:05:132
499999130,1cyclictest3044-21taskset23:23:012
499999130,1cyclictest21106-21grep00:30:132
4985991311,1cyclictest9-21ksoftirqd/022:35:000
4985991311,1cyclictest9-21ksoftirqd/022:20:000
499999125,6cyclictest32637-21ssh21:53:442
499999125,6cyclictest32637-21ssh21:53:442
499999122,1cyclictest24968-21latency_hist19:50:002
499999120,3cyclictest0-21swapper/222:08:582
499999120,1cyclictest13966-21gltestperf19:25:152
499999120,1cyclictest0-21swapper/223:17:532
4985991211,1cyclictest9-21ksoftirqd/023:25:000
499999111,2cyclictest27833-21df_inode22:30:142
499999110,5cyclictest4056-21apt-get23:25:112
499999110,2cyclictest240-21systemd-journal21:05:002
499999110,2cyclictest240-21systemd-journal20:35:002
499999110,2cyclictest240-21systemd-journal20:05:002
499999110,2cyclictest18230-21/usr/sbin/munin23:00:142
499999110,11cyclictest0-21swapper/223:59:092
499999110,10cyclictest0-21swapper/221:10:112
499399110,11cyclictest0-21swapper/123:44:181
498599118,1cyclictest9-21ksoftirqd/023:59:550
498599113,4cyclictest7618-21perf23:30:000
94702100,0sleep10-21swapper/100:15:091
500799109,0cyclictest35-21ksoftirqd/321:30:003
500799108,1cyclictest35-21ksoftirqd/322:00:123
500799108,1cyclictest35-21ksoftirqd/321:35:003
500799100,0cyclictest0-21swapper/321:23:123
499999108,1cyclictest29643-21dump-pmu-power20:00:002
499999106,4cyclictest61650irq/122-eno100:05:122
499999105,4cyclictest61650irq/122-eno100:26:182
499999104,1cyclictest61650irq/122-eno120:55:162
499999103,1cyclictest3768-21ssh21:15:182
499999103,1cyclictest29531-21load21:05:192
499999103,1cyclictest0-21swapper/223:45:122
499999102,2cyclictest9486-21apt-get00:15:112
499999101,8cyclictest13215-21sh22:53:572
499999101,1cyclictest240-21systemd-journal23:10:402
499999100,4cyclictest15518-21apt-get19:30:112
499999100,4cyclictest0-21swapper/221:45:112
499999100,4cyclictest0-21swapper/220:25:112
499999100,3cyclictest0-21swapper/222:48:242
499999100,2cyclictest240-21systemd-journal23:40:012
499999100,2cyclictest240-21systemd-journal22:20:002
499999100,2cyclictest240-21systemd-journal19:15:002
499999100,1cyclictest240-21systemd-journal23:40:012
499999100,1cyclictest240-21systemd-journal22:00:002
499999100,1cyclictest240-21systemd-journal21:40:002
499999100,1cyclictest240-21systemd-journal21:35:002
499999100,1cyclictest2363-21/usr/sbin/munin20:10:142
499999100,1cyclictest10498-21aten2.4-expect21:25:102
499999100,0cyclictest0-21swapper/221:44:162
498599108,1cyclictest9-21ksoftirqd/021:50:000
498599108,1cyclictest9-21ksoftirqd/019:25:000
498599100,2cyclictest0-21swapper/021:55:120
50079998,1cyclictest35-21ksoftirqd/323:40:163
50079998,0cyclictest35-21ksoftirqd/323:00:203
50079997,1cyclictest35-21ksoftirqd/322:40:163
50079997,1cyclictest35-21ksoftirqd/319:50:003
50079990,6cyclictest35-21ksoftirqd/300:30:153
50079990,1cyclictest0-21swapper/319:30:133
49999996,3cyclictest61650irq/122-eno122:02:362
49999994,1cyclictest61650irq/122-eno120:35:172
49999993,1cyclictest61650irq/122-eno123:30:192
49999993,1cyclictest61650irq/122-eno100:10:142
49999992,1cyclictest22608-21ntp_states20:50:172
49999991,2cyclictest12418-21grep19:20:192
49999990,4cyclictest32710-21runrttasks00:01:042
49999990,3cyclictest568-21nscd22:20:172
49999990,3cyclictest13202-21interrupts22:10:152
49999990,1cyclictest240-21systemd-journal23:09:102
49999990,1cyclictest240-21systemd-journal22:42:242
49999990,1cyclictest240-21systemd-journal22:35:002
49999990,1cyclictest240-21systemd-journal22:29:542
49999990,1cyclictest240-21systemd-journal21:20:522
49999990,1cyclictest240-21systemd-journal19:45:002
49999990,1cyclictest0-21swapper/219:50:102
49999990,0cyclictest0-21swapper/200:23:042
49939990,2cyclictest0-21swapper/121:45:001
49859998,1cyclictest9-21ksoftirqd/023:45:150
49859998,1cyclictest9-21ksoftirqd/019:15:010
49859990,6cyclictest0-21swapper/021:22:270
50079988,0cyclictest35-21ksoftirqd/322:55:123
50079988,0cyclictest35-21ksoftirqd/322:10:133
50079987,1cyclictest35-21ksoftirqd/322:05:133
50079987,1cyclictest35-21ksoftirqd/319:20:103
50079986,1cyclictest35-21ksoftirqd/323:55:133
50079986,1cyclictest35-21ksoftirqd/322:50:163
50079985,1cyclictest13650irq/124-ahci[0020:59:553
50079981,6cyclictest27321-21ssh22:30:123
50079980,5cyclictest16746-21runrttasks20:40:103
49999985,3cyclictest61650irq/122-eno100:37:142
49999985,2cyclictest6868-21perf20:20:002
49999983,0cyclictest61650irq/122-eno122:55:172
49999981,1cyclictest23128-21/usr/sbin/munin23:50:152
49939980,7cyclictest0-21swapper/121:35:141
49859987,1cyclictest9-21ksoftirqd/023:44:170
49859987,1cyclictest9-21ksoftirqd/021:40:000
49859987,1cyclictest9-21ksoftirqd/021:30:200
49859987,1cyclictest9-21ksoftirqd/020:10:010
49859986,1cyclictest9-21ksoftirqd/021:40:150
49859986,1cyclictest11631-21cut20:30:000
49859981,6cyclictest7434-21sed00:10:210
49859981,3cyclictest557-21irqbalance23:10:170
49859980,8cyclictest9-21ksoftirqd/019:30:190
49859980,7cyclictest30647-21diskmemload00:01:130
49859980,7cyclictest2364-21ssh21:15:090
49859980,7cyclictest14189-21irqstats00:20:160
49859980,7cyclictest10947-21ssh22:07:080
49859980,7cyclictest0-21swapper/019:45:130
49859980,2cyclictest240-21systemd-journal00:15:260
49859980,1cyclictest16162-21ssh22:56:380
50079977,0cyclictest35-21ksoftirqd/319:20:013
50079977,0cyclictest20497-21sensors20:45:203
50079976,1cyclictest35-21ksoftirqd/322:45:143
50079976,1cyclictest35-21ksoftirqd/320:05:013
50079976,1cyclictest35-21ksoftirqd/300:25:133
50079975,1cyclictest27880-21ssh21:45:583
50079975,1cyclictest23580-21perf20:55:003
50079975,1cyclictest20413-21ssh21:36:083
50079972,0cyclictest23553-21apt-get22:25:103
50079970,7cyclictest11937-21ssh00:17:103
50079970,4cyclictest827-21diskstats23:20:133
50079970,4cyclictest0-21swapper/323:10:003
50079970,2cyclictest6114-21perf21:20:003
49999974,0cyclictest61650irq/122-eno120:48:262
49999974,0cyclictest61650irq/122-eno119:35:122
49939973,1cyclictest0-21swapper/123:53:371
49939971,3cyclictest0-21swapper/121:20:131
49939970,7cyclictest0-21swapper/119:45:191
49939970,5cyclictest0-21swapper/122:59:101
49939970,3cyclictest0-21swapper/123:10:191
49939970,3cyclictest0-21swapper/120:20:131
49939970,1cyclictest0-21swapper/119:20:011
49939970,0cyclictest0-21swapper/119:15:381
49859977,0cyclictest9-21ksoftirqd/000:30:110
49859976,1cyclictest9-21ksoftirqd/022:50:130
49859976,1cyclictest5614-21cat20:15:150
49859976,0cyclictest9-21ksoftirqd/019:40:000
49859975,1cyclictest9-21ksoftirqd/022:25:120
49859975,1cyclictest9-21ksoftirqd/000:30:000
49859975,1cyclictest340-21ssh21:10:460
49859975,1cyclictest31432-21wc20:00:210
49859972,1cyclictest21429-21/usr/sbin/munin23:05:150
49859971,2cyclictest28777-21proc_pri19:55:180
49859970,6cyclictest8542-21perl23:30:130
49859970,6cyclictest5681-21irqstats22:00:150
49859970,6cyclictest30647-21diskmemload22:20:140
49859970,6cyclictest29653-21ssh21:50:120
49859970,6cyclictest29653-21ssh21:50:120
49859970,6cyclictest11538-21ssh23:35:000
49859970,6cyclictest11177-21grep21:25:140
49859970,6cyclictest0-21swapper/023:50:100
49859970,6cyclictest0-21swapper/000:35:140
49859970,5cyclictest0-21swapper/023:00:190
49859970,3cyclictest0-21swapper/020:05:090
49859970,1cyclictest4797-21ssh00:08:130
49859970,1cyclictest3128-21df22:40:140
49859970,1cyclictest20793-21grep19:40:150
49859970,1cyclictest0-21swapper/019:25:200
11192270,0sleep10-21swapper/121:25:141
50079965,1cyclictest987-21ssh21:12:153
50079965,1cyclictest3921-21ssh00:05:483
50079965,1cyclictest35-21ksoftirqd/323:15:153
50079965,1cyclictest35-21ksoftirqd/321:50:133
50079965,1cyclictest35-21ksoftirqd/321:50:133
50079965,1cyclictest35-21ksoftirqd/320:15:143
50079965,1cyclictest35-21ksoftirqd/319:35:153
50079965,1cyclictest35-21ksoftirqd/319:10:123
50079965,1cyclictest27341-21ntpq21:00:173
50079965,1cyclictest26866-21ssh00:36:503
50079965,1cyclictest23062-21ssh23:50:013
50079965,1cyclictest19324-21ssh23:45:093
50079965,1cyclictest13525-21ssh23:35:453
50079965,1cyclictest10104-21ssh23:31:383
50079964,1cyclictest5096-21missed_timers23:25:163
50079964,1cyclictest35-21ksoftirqd/320:00:203
50079963,1cyclictest240-21systemd-journal23:14:553
50079961,1cyclictest967-21apt-get21:55:123
50079960,4cyclictest0-21swapper/320:35:183
50079960,3cyclictest0-21swapper/300:20:453
50079960,2cyclictest0-21swapper/321:40:113
50079960,1cyclictest5747-21/usr/sbin/munin00:10:173
50079960,1cyclictest20792-21tune2fs19:40:153
50079960,1cyclictest19781-21ssh22:20:073
49999964,1cyclictest0-21swapper/220:20:142
49939962,0cyclictest0-21swapper/119:50:191
49939961,5cyclictest0-21swapper/123:21:551
49939961,5cyclictest0-21swapper/120:00:261
49939961,2cyclictest0-21swapper/123:01:111
49939961,2cyclictest0-21swapper/100:32:221
49939960,6cyclictest0-21swapper/121:55:131
49939960,4cyclictest0-21swapper/122:15:111
49939960,4cyclictest0-21swapper/100:12:321
49939960,3cyclictest0-21swapper/122:35:211
49939960,3cyclictest0-21swapper/122:24:061
49939960,3cyclictest0-21swapper/100:00:221
49939960,2cyclictest0-21swapper/123:26:551
49939960,2cyclictest0-21swapper/123:15:131
49939960,2cyclictest0-21swapper/122:45:121
49939960,2cyclictest0-21swapper/122:10:121
49939960,2cyclictest0-21swapper/120:30:001
49939960,2cyclictest0-21swapper/100:35:061
49939960,1cyclictest0-21swapper/123:35:131
49939960,1cyclictest0-21swapper/121:32:081
49939960,1cyclictest0-21swapper/121:10:151
49939960,1cyclictest0-21swapper/120:59:551
49939960,1cyclictest0-21swapper/120:35:221
49939960,1cyclictest0-21swapper/120:10:161
49859965,1cyclictest9-21ksoftirqd/020:30:000
49859964,1cyclictest19094-21/usr/sbin/munin20:45:210
49859964,1cyclictest17878-21grep20:40:150
49859962,1cyclictest0-21swapper/020:50:120
49859961,4cyclictest0-21swapper/019:10:150
49859960,6cyclictest30646-21ssh23:15:220
49859960,6cyclictest0-21swapper/020:56:460
49859960,6cyclictest0-21swapper/020:36:430
49859960,6cyclictest0-21swapper/020:21:500
49859960,5cyclictest0-21swapper/019:50:200
49859960,3cyclictest6337-21ssh22:45:060
49859960,0cyclictest0-21swapper/022:11:010
49859960,0cyclictest0-21swapper/021:08:100
14193260,1sleep10-21swapper/100:20:171
50079955,0cyclictest35-21ksoftirqd/320:20:133
50079955,0cyclictest35-21ksoftirqd/320:10:223
50079954,1cyclictest35-21ksoftirqd/320:30:003
50079954,1cyclictest23762-21ntp_states19:45:173
50079952,1cyclictest30647-21diskmemload00:00:183
50079951,1cyclictest0-21swapper/320:25:193
50079951,0cyclictest0-21swapper/321:06:103
50079950,1cyclictest0-21swapper/319:25:113
50079950,0cyclictest0-21swapper/319:55:193
49999953,1cyclictest9020-21grep19:15:152
49999950,4cyclictest16740-21/usr/sbin/munin20:40:182
49939955,0cyclictest0-21swapper/122:25:231
49939955,0cyclictest0-21swapper/119:59:301
49939952,3cyclictest0-21swapper/121:52:221
49939952,3cyclictest0-21swapper/121:52:211
49939951,0cyclictest0-21swapper/100:29:051
49939951,0cyclictest0-21swapper/100:06:421
49939950,5cyclictest203-21jbd2/sda2-820:17:421
49939950,5cyclictest0-21swapper/123:45:091
49939950,5cyclictest0-21swapper/120:54:551
49939950,3cyclictest0-21swapper/123:55:121
49939950,2cyclictest0-21swapper/123:30:511
49939950,1cyclictest0-21swapper/123:06:351
49939950,1cyclictest0-21swapper/122:03:321
49939950,1cyclictest0-21swapper/121:45:111
49939950,1cyclictest0-21swapper/120:30:211
49939950,1cyclictest0-21swapper/119:30:111
49939950,0cyclictest0-21swapper/121:02:461
49939950,0cyclictest0-21swapper/120:49:521
49939950,0cyclictest0-21swapper/119:37:281
49859950,5cyclictest0-21swapper/021:03:160
49939944,0cyclictest0-21swapper/122:50:231
49939944,0cyclictest0-21swapper/120:07:531
49939940,2cyclictest0-21swapper/122:30:111
49939940,2cyclictest0-21swapper/121:05:141
49939940,2cyclictest0-21swapper/120:40:121
49939940,2cyclictest0-21swapper/119:25:141
49939940,1cyclictest0-21swapper/122:05:161
49939940,1cyclictest0-21swapper/121:15:101
49939940,1cyclictest0-21swapper/119:40:201
49939940,0cyclictest0-21swapper/122:40:141
49939932,1cyclictest0-21swapper/119:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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