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2026-07-08 - 21:37
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Wed Jul 08, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49802212178,22sleep20-21swapper/207:05:302
52792209158,26sleep30-21swapper/307:09:253
50562200161,25sleep10-21swapper/107:06:291
50552197160,24sleep00-21swapper/007:06:270
326692580,0sleep00-21swapper/011:24:250
5423991717,0cyclictest28-21ksoftirqd/211:21:122
5423991717,0cyclictest28-21ksoftirqd/210:59:312
5423991717,0cyclictest28-21ksoftirqd/210:42:322
5423991717,0cyclictest28-21ksoftirqd/210:17:532
5423991616,0cyclictest28-21ksoftirqd/212:35:072
5423991616,0cyclictest28-21ksoftirqd/211:50:482
5423991615,1cyclictest28-21ksoftirqd/211:59:292
5423991615,1cyclictest28-21ksoftirqd/208:05:132
5415991612,4cyclictest21-21ksoftirqd/109:11:381
5415991612,4cyclictest0-21swapper/110:07:381
5415991612,4cyclictest0-21swapper/109:34:021
5423991515,0cyclictest28-21ksoftirqd/212:28:112
5423991515,0cyclictest28-21ksoftirqd/212:18:302
5423991515,0cyclictest28-21ksoftirqd/212:09:112
5423991515,0cyclictest28-21ksoftirqd/212:01:352
5423991515,0cyclictest28-21ksoftirqd/211:11:072
5423991515,0cyclictest28-21ksoftirqd/210:53:422
5423991515,0cyclictest28-21ksoftirqd/210:31:272
5423991515,0cyclictest28-21ksoftirqd/210:26:292
5423991515,0cyclictest28-21ksoftirqd/210:22:572
5423991515,0cyclictest28-21ksoftirqd/210:10:582
5423991514,1cyclictest28-21ksoftirqd/211:04:042
5423991514,1cyclictest28-21ksoftirqd/209:49:342
5423991514,1cyclictest28-21ksoftirqd/209:16:292
5415991511,4cyclictest21-21ksoftirqd/111:37:101
5415991511,4cyclictest21-21ksoftirqd/108:26:501
5415991511,4cyclictest21-21ksoftirqd/107:19:421
5415991511,4cyclictest21-21ksoftirqd/107:19:421
5415991511,4cyclictest111rcu_preempt09:45:121
541599150,0cyclictest0-21swapper/112:21:581
543099140,1cyclictest18829-21expr11:05:133
5423991414,0cyclictest28-21ksoftirqd/212:34:302
5423991414,0cyclictest28-21ksoftirqd/211:47:542
5423991414,0cyclictest28-21ksoftirqd/211:42:392
5423991414,0cyclictest28-21ksoftirqd/211:39:582
5423991414,0cyclictest28-21ksoftirqd/211:30:552
5423991414,0cyclictest28-21ksoftirqd/211:30:552
5423991414,0cyclictest28-21ksoftirqd/211:28:502
5423991414,0cyclictest28-21ksoftirqd/211:15:422
5423991414,0cyclictest28-21ksoftirqd/211:06:092
5423991414,0cyclictest28-21ksoftirqd/210:05:412
5423991414,0cyclictest28-21ksoftirqd/209:35:092
5423991414,0cyclictest28-21ksoftirqd/209:31:342
5423991414,0cyclictest28-21ksoftirqd/209:27:332
5423991414,0cyclictest28-21ksoftirqd/207:50:162
5423991413,1cyclictest28-21ksoftirqd/208:10:172
543099130,2cyclictest30677-21diskmemload09:35:163
543099130,2cyclictest18561-21taskset11:49:583
5423991313,0cyclictest28-21ksoftirqd/212:10:092
5423991313,0cyclictest28-21ksoftirqd/210:03:162
5423991313,0cyclictest28-21ksoftirqd/209:56:302
5423991313,0cyclictest28-21ksoftirqd/209:40:112
5423991313,0cyclictest28-21ksoftirqd/209:20:422
5423991313,0cyclictest28-21ksoftirqd/208:34:092
5423991312,1cyclictest28-21ksoftirqd/210:35:122
5423991311,1cyclictest28-21ksoftirqd/208:25:092
541599130,13cyclictest56-21kworker/1:110:29:581
541599130,13cyclictest21-21ksoftirqd/108:38:021
541599130,13cyclictest0-21swapper/112:10:451
541599130,13cyclictest0-21swapper/108:04:261
541599130,0cyclictest21-21ksoftirqd/107:53:141
540599130,12cyclictest0-21swapper/008:25:120
543099120,3cyclictest0-21swapper/311:37:043
5423991212,0cyclictest28-21ksoftirqd/207:40:122
5423991211,1cyclictest28-21ksoftirqd/212:20:132
5423991211,1cyclictest28-21ksoftirqd/207:30:112
541599124,7cyclictest21-21ksoftirqd/111:15:111
5415991211,1cyclictest21-21ksoftirqd/109:59:011
541599120,12cyclictest56-21kworker/1:111:48:211
541599120,12cyclictest0-21swapper/109:00:251
5405991211,1cyclictest9-21ksoftirqd/011:15:000
543099119,1cyclictest35-21ksoftirqd/308:34:593
543099115,5cyclictest16862-21ssh09:34:553
543099111,2cyclictest0-21swapper/312:28:423
543099111,1cyclictest0-21swapper/312:13:013
543099110,4cyclictest240-21systemd-journal07:49:553
543099110,2cyclictest0-21swapper/311:04:573
542399119,1cyclictest28-21ksoftirqd/209:50:112
542399119,1cyclictest28-21ksoftirqd/208:55:142
542399119,1cyclictest28-21ksoftirqd/208:45:152
542399119,1cyclictest28-21ksoftirqd/208:35:132
542399119,1cyclictest28-21ksoftirqd/208:15:192
542399119,1cyclictest28-21ksoftirqd/208:00:172
542399119,1cyclictest28-21ksoftirqd/207:59:592
542399119,1cyclictest28-21ksoftirqd/207:45:122
542399119,1cyclictest28-21ksoftirqd/207:20:112
542399114,7cyclictest28-21ksoftirqd/207:15:162
542399114,7cyclictest28-21ksoftirqd/207:15:152
5423991111,0cyclictest28-21ksoftirqd/210:46:052
5423991110,1cyclictest28-21ksoftirqd/209:10:122
5415991111,0cyclictest0-21swapper/109:22:501
541599110,11cyclictest0-21swapper/111:03:351
541599110,11cyclictest0-21swapper/108:49:141
541599110,0cyclictest0-21swapper/112:33:101
540599113,4cyclictest20283-21cat07:40:000
543099105,4cyclictest13783-21ssh11:41:243
543099102,2cyclictest23134-21ssh09:41:133
543099102,1cyclictest30677-21diskmemload09:55:493
543099102,1cyclictest23879-21ntp_states11:55:183
543099102,0cyclictest30677-21diskmemload10:45:093
543099102,0cyclictest30677-21diskmemload10:11:113
543099101,2cyclictest30677-21diskmemload12:24:013
543099101,2cyclictest30677-21diskmemload09:14:573
543099101,0cyclictest30677-21diskmemload10:33:223
543099100,2cyclictest32238-21perf08:04:593
543099100,1cyclictest0-21swapper/311:14:253
543099100,1cyclictest0-21swapper/310:44:473
543099100,0cyclictest30677-21diskmemload11:19:173
542399109,1cyclictest28-21ksoftirqd/207:35:122
542399109,1cyclictest28-21ksoftirqd/207:25:142
542399108,1cyclictest28-21ksoftirqd/209:05:122
542399108,1cyclictest28-21ksoftirqd/209:00:122
542399108,1cyclictest28-21ksoftirqd/208:50:132
542399108,1cyclictest28-21ksoftirqd/208:20:152
542399108,1cyclictest28-21ksoftirqd/207:10:122
541599109,1cyclictest21-21ksoftirqd/110:50:101
541599109,1cyclictest111rcu_preempt12:25:181
541599109,0cyclictest111rcu_preempt10:00:141
541599108,1cyclictest111rcu_preempt11:50:151
541599101,8cyclictest111rcu_preempt12:18:211
541599101,8cyclictest111rcu_preempt11:59:161
541599101,7cyclictest21-21ksoftirqd/110:55:141
541599100,0cyclictest0-21swapper/110:41:101
541599100,0cyclictest0-21swapper/108:15:381
540599108,1cyclictest9-21ksoftirqd/007:55:000
540599101,6cyclictest11775-21kworker/u8:211:53:070
54309993,0cyclictest30677-21diskmemload10:02:233
54309992,3cyclictest30677-21diskmemload09:26:563
54309992,1cyclictest4351-21taskset11:30:103
54309992,1cyclictest4351-21taskset11:30:103
54309991,1cyclictest22651-21apt-get12:40:003
54309991,0cyclictest30677-21diskmemload12:05:043
54309990,2cyclictest0-21swapper/310:16:353
54309990,2cyclictest0-21swapper/309:51:063
54309990,1cyclictest30677-21diskmemload12:15:443
54309990,1cyclictest240-21systemd-journal10:59:563
54309990,1cyclictest240-21systemd-journal09:50:003
54309990,1cyclictest240-21systemd-journal08:15:013
54309990,1cyclictest0-21swapper/312:04:153
54309990,1cyclictest0-21swapper/311:23:283
54309990,1cyclictest0-21swapper/309:23:093
54309990,0cyclictest0-21swapper/310:51:343
54239998,1cyclictest28-21ksoftirqd/208:40:112
54159998,1cyclictest21-21ksoftirqd/112:07:351
54159998,1cyclictest21-21ksoftirqd/111:21:481
54159998,1cyclictest21-21ksoftirqd/111:14:051
54159998,1cyclictest21-21ksoftirqd/110:47:461
54159998,1cyclictest21-21ksoftirqd/110:36:051
54159998,1cyclictest21-21ksoftirqd/110:16:291
54159998,1cyclictest21-21ksoftirqd/109:50:561
54159998,1cyclictest21-21ksoftirqd/107:27:021
54159997,1cyclictest21-21ksoftirqd/107:55:131
54159992,6cyclictest21-21ksoftirqd/110:31:501
54159991,8cyclictest21-21ksoftirqd/110:10:081
54159991,1cyclictest111rcu_preempt11:29:271
54159991,1cyclictest111rcu_preempt07:40:221
54159991,0cyclictest111rcu_preempt11:05:151
54159991,0cyclictest111rcu_preempt09:40:161
54159990,8cyclictest21-21ksoftirqd/111:31:211
54159990,8cyclictest21-21ksoftirqd/111:31:201
54159990,8cyclictest21-21ksoftirqd/109:25:281
54159990,8cyclictest111rcu_preempt12:38:561
54159990,8cyclictest111rcu_preempt09:15:361
54159990,8cyclictest111rcu_preempt08:05:121
54159990,1cyclictest21-21ksoftirqd/112:03:131
54159990,1cyclictest111rcu_preempt09:36:531
54059997,1cyclictest9-21ksoftirqd/009:35:000
54059995,1cyclictest240-21systemd-journal10:20:000
54059993,3cyclictest21273-21perf10:24:590
54309982,1cyclictest30677-21diskmemload11:50:153
54309982,1cyclictest28379-21cat09:05:013
54309982,1cyclictest2522-21df09:15:153
54309982,1cyclictest23273-21head10:25:223
54309982,1cyclictest17981-21date07:35:003
54309982,1cyclictest14399-21apt-get08:35:123
54309981,1cyclictest9056-21grep08:20:213
54309980,3cyclictest0-21swapper/308:44:593
54309980,1cyclictest28959-21/usr/sbin/munin10:35:143
54309980,1cyclictest240-21systemd-journal12:33:473
54309980,1cyclictest240-21systemd-journal11:29:553
54309980,1cyclictest240-21systemd-journal10:23:293
54309980,1cyclictest240-21systemd-journal08:58:113
54309980,1cyclictest240-21systemd-journal08:26:113
54309980,1cyclictest240-21systemd-journal08:19:553
54309980,1cyclictest240-21systemd-journal07:55:103
54309980,1cyclictest240-21systemd-journal07:51:253
54309980,1cyclictest240-21systemd-journal07:29:553
54309980,1cyclictest240-21systemd-journal07:21:543
54309980,1cyclictest240-21systemd-journal07:17:103
54309980,1cyclictest240-21systemd-journal07:17:093
54309980,1cyclictest240-21systemd-journal07:12:243
54309980,1cyclictest0-21swapper/308:45:003
54159988,0cyclictest21-21ksoftirqd/108:50:111
54159988,0cyclictest21-21ksoftirqd/108:42:171
54159988,0cyclictest21-21ksoftirqd/108:11:251
54159988,0cyclictest21-21ksoftirqd/107:20:141
54159988,0cyclictest0-21swapper/107:10:111
54159987,1cyclictest21-21ksoftirqd/111:40:151
54159987,1cyclictest21-21ksoftirqd/108:55:191
54159987,1cyclictest21-21ksoftirqd/108:30:091
54159982,3cyclictest111rcu_preempt08:20:101
54159981,0cyclictest111rcu_preempt10:20:131
54159981,0cyclictest111rcu_preempt07:35:171
54159980,8cyclictest21-21ksoftirqd/107:34:121
54159980,0cyclictest111rcu_preempt09:05:131
54059982,4cyclictest23834-21apt-get08:55:120
54059980,7cyclictest9215-21cut11:35:170
54059980,6cyclictest26533-21perl11:15:130
54309975,1cyclictest35-21ksoftirqd/308:50:123
54309972,1cyclictest18581-21expr07:35:123
54309971,1cyclictest6772-21apt-get10:05:113
54309970,1cyclictest240-21systemd-journal09:08:123
54309970,1cyclictest240-21systemd-journal08:06:113
54309970,1cyclictest0-21swapper/307:40:103
54159976,1cyclictest21-21ksoftirqd/107:45:141
54059976,1cyclictest23095-1kworker/u9:109:41:260
54059976,1cyclictest13457-1kworker/u9:211:45:030
54059975,1cyclictest693-21runrttasks09:10:430
54059975,1cyclictest583-21in:imuxsock09:09:420
54059975,1cyclictest3656-21diskstats10:00:140
54059975,1cyclictest17676-21irqstats08:40:140
54059975,1cyclictest13607-21ssh10:57:330
54059975,1cyclictest12158-21df_inode11:40:140
54059974,2cyclictest0-21swapper/012:35:100
54059972,4cyclictest30466-21ssh12:05:120
54059971,3cyclictest30677-21diskmemload09:15:420
54059970,6cyclictest8316-21hddtemp_smartct07:15:010
54059970,6cyclictest8316-21hddtemp_smartct07:15:000
54059970,6cyclictest8180-21perl10:50:140
54059970,6cyclictest693-21runrttasks10:46:400
54059970,6cyclictest5469-21diskstats08:15:140
54059970,6cyclictest32157-21grep09:55:120
54059970,6cyclictest30604-21df08:00:120
54059970,6cyclictest26991-21ssh09:46:570
54059970,6cyclictest26247-21cut10:30:160
54059970,6cyclictest25779-21ssh11:59:170
54059970,6cyclictest17542-21aten_r1power_vo09:35:130
54059970,6cyclictest16517-21munin-run08:40:000
54059970,6cyclictest15720-21telnet12:30:100
54059970,6cyclictest10786-21kworker/u8:110:10:500
54059970,6cyclictest10177-21diskstats09:25:150
54059970,6cyclictest0-21swapper/010:25:120
54059970,1cyclictest4717-21expr11:30:120
54059970,1cyclictest4717-21expr11:30:120
54059970,1cyclictest30677-21diskmemload11:00:130
54059970,1cyclictest30677-21diskmemload10:07:420
54059970,1cyclictest2663-21ssh11:25:480
54059970,1cyclictest2348-21ntpq12:10:170
54059970,1cyclictest19934-21hddtemp_smartct08:45:150
54059970,1cyclictest14483-21ssh12:27:140
54059970,1cyclictest1199-21sort10:40:160
54059970,1cyclictest0-21swapper/012:00:050
54059970,1cyclictest0-21swapper/011:05:220
54059965,1cyclictest10922-21ssh12:22:270
54059964,1cyclictest8475-21ntpq08:20:170
54059964,1cyclictest6683-21smartctl09:20:140
54059964,1cyclictest22596-21idleruntime-cro07:45:000
54059964,1cyclictest11803-21grep07:20:150
54059963,1cyclictest240-21systemd-journal07:55:550
54059963,1cyclictest240-21systemd-journal07:32:240
54059960,6cyclictest0-21swapper/007:28:280
54059960,5cyclictest29412-21ssh09:50:160
54059960,5cyclictest0-21swapper/007:10:200
54059960,1cyclictest30677-21diskmemload12:15:140
54059960,1cyclictest0-21swapper/007:45:110
54059960,0cyclictest0-21swapper/010:35:100
54059960,0cyclictest0-21swapper/009:03:360
54059950,5cyclictest0-21swapper/008:33:550
54059950,1cyclictest0-21swapper/008:10:120
54059950,0cyclictest0-21swapper/008:50:110
54059950,0cyclictest0-21swapper/008:05:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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