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2026-07-07 - 16:36
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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 rack6slot5.osadl.org (updated Tue Jul 07, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3005099111375693,5430cyclictest13172-21kworker/0:107:30:010
300509997115230,4479cyclictest13172-21kworker/0:107:12:440
300509972523783,3446cyclictest19717-21kworker/0:008:18:240
300509971303688,3428cyclictest19717-21kworker/0:008:14:530
300509970353788,3237cyclictest13172-21kworker/0:107:58:210
300509969093624,3275cyclictest13172-21kworker/0:107:20:110
300509968473695,3142cyclictest13172-21kworker/0:107:31:380
300509964823569,2863cyclictest13172-21kworker/0:107:18:440
300509963673507,2810cyclictest13172-21kworker/0:107:39:280
300509922302158,59cyclictest13172-21kworker/0:107:43:470
294172803184,201sleep00-21swapper07:05:250
300509950255,259cyclictest16853-21seq11:41:130
300509949432,462cyclictest28262-21runrttasks09:46:050
300509948733,448cyclictest31026-21ssh09:51:500
300509948634,439cyclictest10906-21diskmemload09:18:320
300509948334,436cyclictest344450irq/10-eth009:59:030
300509948131,449cyclictest30359-21mailstats08:35:130
300509947734,374cyclictest150202chrt07:52:430
300509947535,369cyclictest2844-21grep12:21:120
300509947347,249cyclictest334-21ssh12:16:000
300509947337,375cyclictest18032-21runrttasks11:45:100
300509947332,426cyclictest28711-21grep08:30:230
300509947234,424cyclictest16295-21ssh09:20:410
300509946735,371cyclictest9461-21ssh10:15:420
300509946734,372cyclictest18380-21ssh10:35:310
300509946632,373cyclictest10673-21runrttasks11:28:450
300509946532,373cyclictest1771-21grep11:10:130
300509946531,373cyclictest10906-21diskmemload12:35:590
300509946432,419cyclictest17661-21kworker/u2:210:46:270
300509946314,380cyclictest23421-21munin-node09:35:490
300509946233,359cyclictest26505-21kworker/u2:010:57:250
30050994593,441cyclictest7823-21grep11:21:260
300509945031,405cyclictest11604-21ssh11:30:380
300509942240,368cyclictest4285-21lldpd11:08:030
300509941933,87cyclictest9188-21sshd09:05:130
300509941717,377cyclictest8384-21fschecks_time09:00:540
300509941551,350cyclictest8242-21ssh12:33:010
300509941218,213cyclictest21425-21ssh11:51:120
300509941133,87cyclictest4734-21df_abs11:15:390
300509940932,362cyclictest18033-21irqstats09:25:140
300509940923,372cyclictest10906-21diskmemload09:14:320
300509940733,361cyclictest6764-21sshd08:56:290
300509940633,360cyclictest13-21rcuc/011:35:180
300509940633,359cyclictest10906-21diskmemload10:30:330
300509940618,375cyclictest20083-21munin-node08:05:480
300509940549,297cyclictest5677-21runrttasks10:06:560
300509940534,357cyclictest8008-21ssh10:12:040
300509940532,359cyclictest14290-21kernelversion10:25:570
300509940217,88cyclictest32694-21df_abs08:40:290
300509940146,341cyclictest12743-21ssh10:22:340
300509940029,358cyclictest10906-21diskmemload11:02:520
300509939819,366cyclictest30749-21fschecks_time12:11:150
300509939734,350cyclictest10906-21diskmemload11:57:420
300509939632,350cyclictest22013-21ssh10:42:420
300509939526,356cyclictest11-21ksoftirqd/012:00:220
300509939518,364cyclictest10906-21diskmemload10:51:010
300509939318,353cyclictest21918-21runrttasks09:32:330
300509939233,346cyclictest351950irq/10-yenta10:04:500
300509938757,270cyclictest29429-21ssh12:09:520
300509938732,341cyclictest5278-21chrt08:54:410
300509938657,269cyclictest5437-21seq12:26:210
300509938632,341cyclictest25306-21ssh09:40:330
300509937952,267cyclictest2805-21timerwakeupswit08:45:590
300509937932,162cyclictest26568-21latency_hist08:25:020
300509937435,279cyclictest18072-21strings08:00:410
300509937346,267cyclictest27378-21needreboot08:25:410
300509935932,152cyclictest12110-21awk07:45:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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