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2026-06-09 - 15:22
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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 all highest latencies:
System rack6slot5.osadl.org (updated Tue Jun 09, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165159997105089,4610cyclictest6879-21kworker/0:207:21:480
165159980454321,3682cyclictest6879-21kworker/0:207:14:080
165159964023453,2938cyclictest6879-21kworker/0:207:15:490
163902779185,203sleep00-21swapper07:09:370
165159950554,95cyclictest26348-21ssh10:17:290
165159949134,443cyclictest345450irq/10-yenta11:55:170
165159948956,372cyclictest4272-21snmpd08:42:400
165159948950,89cyclictest4894-21runrttasks08:55:130
165159947334,154cyclictest24674-21tail11:30:290
165159946736,369cyclictest4272-21snmpd09:02:550
165159946623,382cyclictest6574-21nscd09:14:530
165159946421,382cyclictest4894-21runrttasks11:46:110
165159946218,382cyclictest5231-21munin-node08:06:000
165159945916,381cyclictest19101-21smartctl11:16:250
165159945872,203cyclictest11-21ksoftirqd/012:31:280
165159945712,421cyclictest11851-21ssh09:44:320
16515994565,435cyclictest20311-21ssh12:36:190
165159945319,373cyclictest10874-21latency_hist12:15:050
165159944912,421cyclictest4894-21runrttasks11:38:380
165159944265,363cyclictest4911-19udevd08:30:580
16515994404,374cyclictest16788-21ssh12:28:270
165159943961,362cyclictest30496-21ssh10:26:520
16515994394,374cyclictest2612-21ssh10:38:360
165159943933,343cyclictest5990-21memory10:45:510
16515994382,374cyclictest6929-21cat09:31:370
165159943656,203cyclictest9291-21ssh10:54:220
16515994351,373cyclictest0-21swapper07:27:080
165159943358,360cyclictest599-21apt-get09:17:150
165159943357,202cyclictest29354-21diskmemload10:03:210
165159942858,356cyclictest15787-21ssh09:52:500
165159942857,358cyclictest13359-21ssh11:03:190
16515994260,249cyclictest29354-21diskmemload09:56:060
16515994234,358cyclictest24284-21ssh10:12:450
165159942056,350cyclictest8249-21ssh12:07:270
165159941956,302cyclictest0-21swapper08:22:150
165159941854,350cyclictest0-21swapper08:29:470
165159941555,360cyclictest0-21swapper11:44:040
165159941553,87cyclictest11932-21ssh12:16:170
165159941460,354cyclictest0-21swapper09:37:000
165159941159,338cyclictest2129-21rm11:54:080
165159940854,354cyclictest0-21swapper12:03:080
165159940848,87cyclictest4567-21ssh09:26:200
165159940837,371cyclictest0-21swapper10:44:060
165159940835,357cyclictest28649-21ssh10:23:240
165159940521,370cyclictest27778-21seq07:36:320
165159940333,258cyclictest11648-21kworker/u2:209:49:260
165159940330,359cyclictest653-21ssh10:34:350
165159940138,339cyclictest4272-21snmpd07:42:040
165159940034,352cyclictest21427-21strings10:06:020
165159940031,369cyclictest0-21swapper07:52:340
165159939917,368cyclictest4272-21snmpd11:24:220
165159939836,302cyclictest24203-21ssh11:29:380
165159939757,340cyclictest0-21swapper08:18:550
165159939734,363cyclictest0-21swapper08:46:410
165159939434,360cyclictest0-21swapper07:55:360
165159939231,361cyclictest0-21swapper07:47:110
165159939227,204cyclictest4253-21lldpd12:22:100
165159939132,359cyclictest0-21swapper08:52:540
165159939129,347cyclictest29406-21ssh09:10:050
165159938935,341cyclictest15787-21ssh11:09:560
165159938922,353cyclictest3731-21munin-node08:00:290
165159938720,352cyclictest29354-21diskmemload10:57:150
165159938633,339cyclictest2419-21kworker/u2:209:22:140
165159938122,308cyclictest16992-21munin-node11:11:250
165159938119,348cyclictest16533-21mailstats08:35:110
165159937319,340cyclictest7260-21munin-node08:10:090
165159936636,90cyclictest12-21rcu_preempt07:30:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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