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2026-06-29 - 05:56
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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 Mon Jun 29, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188099968983833,3062cyclictest7980-21kworker/0:219:12:050
183732774183,203sleep00-21swapper19:07:030
188099949052,197cyclictest28819-21ssh00:25:540
188099948532,439cyclictest23323-21python20:45:460
188099947220,389cyclictest29762-21runrttasks21:05:020
188099946934,375cyclictest26065-21runrttasks23:12:180
188099946633,373cyclictest22742-21rm00:13:420
188099946433,371cyclictest10424-21ssh21:31:560
188099946432,371cyclictest13339-21ssh22:45:540
188099946334,369cyclictest18471-21mailstats00:05:150
188099946332,362cyclictest10520-21seq22:40:330
188099946033,367cyclictest31648-21fschecks_time22:16:170
188099946032,368cyclictest31562-21diskmemload21:44:150
188099945834,364cyclictest19191-21rm22:58:390
188099945132,90cyclictest12-21rcu_preempt23:00:320
188099944132,349cyclictest24818-21kworker/u2:300:32:070
188099943932,348cyclictest31562-21diskmemload21:36:470
188099943331,343cyclictest6169-21chrt21:24:050
188099942056,197cyclictest8824-21ssh23:45:060
188099941936,369cyclictest32738-21kworker/u2:221:18:110
188099940735,372cyclictest0-21swapper22:22:180
188099940733,361cyclictest5041-21sed23:36:010
188099940634,372cyclictest0-21swapper23:07:370
188099940632,360cyclictest27534-21forks23:15:430
188099940551,340cyclictest13180-21ssh23:53:430
188099940534,371cyclictest0-21swapper21:49:480
188099940533,359cyclictest31562-21diskmemload00:01:410
188099940533,358cyclictest4285-21lldpd19:45:310
188099940519,373cyclictest20877-21munin-node21:55:420
188099940433,371cyclictest0-21swapper22:05:490
188099940333,356cyclictest351950irq/10-yenta19:55:530
188099940331,359cyclictest31562-21diskmemload00:16:260
188099940317,87cyclictest4305-21snmpd21:10:320
188099940215,374cyclictest30846-21ssh23:22:200
188099940035,184cyclictest11880-21munin-node20:15:330
188099939822,362cyclictest16390-21seq22:51:590
188099939733,350cyclictest9221-21chrt20:09:510
188099939534,310cyclictest4224-21lldpd00:35:170
188099939531,351cyclictest15353-21runrttasks23:57:500
188099939531,350cyclictest19358-21expr20:35:340
188099939441,340cyclictest31562-21diskmemload00:20:070
188099939440,199cyclictest7526-19blkid23:41:070
188099939338,341cyclictest23487-21ssh22:00:270
188099939160,270cyclictest28008-21timerwakeupswit19:30:590
188099938959,270cyclictest3372-21ssh23:33:100
188099938861,90cyclictest430-21cstates23:26:200
188099938833,341cyclictest4924-21runrttasks20:20:190
188099938832,342cyclictest109972sleep020:14:100
188099938733,341cyclictest3353-21ssh22:25:380
188099938715,88cyclictest9563-21kworker/u2:122:38:440
188099938615,311cyclictest351950irq/10-yenta21:50:520
188099938557,268cyclictest8572-21ssh21:29:100
188099938531,341cyclictest6317-21ssh22:31:060
188099938332,339cyclictest4924-21runrttasks19:44:340
188099938254,266cyclictest28673-21seq19:35:080
188099937531,344cyclictest0-21swapper19:15:590
188099937249,88cyclictest4924-21runrttasks20:44:010
188099937218,303cyclictest34-1kworker/0:1H21:10:010
188099936335,90cyclictest344450irq/10-eth022:13:540
18809993627,340cyclictest15973-21smartctl20:25:510
188099935635,88cyclictest6277-21munin-node20:00:310
188099935324,269cyclictest23325-21ls19:20:200
188099934532,254cyclictest25013-21which19:25:140
18809993437,275cyclictest26098-21munin-node20:55:330
188099933764,260cyclictest4285-21lldpd20:53:470
188099933654,91cyclictest2828-21smartctl19:50:520
188099932745,269cyclictest16831-21mailstats20:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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