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2026-05-24 - 17:33
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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 792 highest latencies:
System rack6slot5.osadl.org (updated Sun May 24, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162159988124538,4270cyclictest1755-21kworker/0:207:20:530
162159986134437,4165cyclictest1755-21kworker/0:207:15:470
162159967153625,3003cyclictest1755-21kworker/0:207:14:060
159172749186,203sleep00-21swapper07:08:090
162159951622,423cyclictest28311-21rm10:24:200
162159951525,429cyclictest12248-21seq12:20:400
162159951424,429cyclictest4894-21runrttasks10:01:440
162159951121,420cyclictest1393-21ssh09:20:450
162159950664,373cyclictest27467-21ntp_states11:40:190
162159950664,256cyclictest13-21rcuc/010:54:350
162159949764,374cyclictest28931-21diskmemload11:33:590
162159949227,395cyclictest2051-21grep07:56:000
162159948823,405cyclictest29509-21sed09:10:410
162159948754,363cyclictest26244-21wc11:36:140
162159947922,395cyclictest11-21ksoftirqd/012:14:200
162159947424,389cyclictest338750irq/10-eth011:01:380
162159946258,389cyclictest28931-19diskmemload11:16:330
162159945922,413cyclictest10852-21rm10:59:310
162159945823,411cyclictest4018-21rm10:42:060
162159945793,350cyclictest13-21rcuc/007:45:170
162159945626,368cyclictest17017-21unixbench-2d12:31:240
162159945545,339cyclictest9578-21sh09:40:220
162159945368,88cyclictest11-21ksoftirqd/011:51:140
16215994531,428cyclictest28931-21diskmemload11:22:150
162159945222,370cyclictest31263-21kworker/u2:109:18:210
16215994521,437cyclictest4894-21runrttasks08:05:080
162159945168,368cyclictest13-21rcuc/009:29:280
162159945025,363cyclictest7890-21kworker/u2:211:12:110
162159945022,405cyclictest28931-21diskmemload09:39:310
162159944851,374cyclictest10139-21apt-get08:17:130
162159944823,411cyclictest28931-21diskmemload12:15:360
162159944754,378cyclictest22909-21ssh11:29:120
162159944657,195cyclictest19085-21grep08:41:050
162159944529,345cyclictest248202chrt08:56:220
162159944464,366cyclictest13-21rcuc/009:59:090
162159943925,390cyclictest2093-21rm10:38:440
162159943922,402cyclictest17020-21ls08:35:520
162159943821,394cyclictest13976-21sshd08:28:170
162159943677,345cyclictest345450irq/10-yenta10:14:080
162159943623,398cyclictest15504-21ssh12:28:170
162159943622,390cyclictest5770-21ssh09:30:450
16215994332,369cyclictest28931-21diskmemload11:55:160
16215994322,369cyclictest14892-21unixbench_singl08:30:330
162159943172,300cyclictest15641-21ssh09:54:460
162159942958,88cyclictest13-21rcuc/012:09:380
162159942877,338cyclictest13196-21ssh09:48:010
162159942254,354cyclictest25312-21sshd10:16:170
162159942052,89cyclictest32041-21df_inode07:50:300
162159941947,358cyclictest20143-21ssh12:40:110
162159941721,372cyclictest28931-21diskmemload12:37:130
162159941646,357cyclictest0-21swapper10:05:170
162159941047,348cyclictest28931-21diskmemload10:34:140
162159940825,368cyclictest30216-21ssh10:28:100
162159940053,332cyclictest13168-21ssh11:05:110
162159939953,323cyclictest28931-21diskmemload10:45:100
162159939439,355cyclictest0-21swapper08:24:500
162159939338,341cyclictest5448-21ssh12:05:050
162159939036,339cyclictest4396-31copy08:01:490
162159938753,320cyclictest7698-21strings08:10:440
162159938721,306cyclictest31144-21ssh11:48:290
162159938720,367cyclictest0-21swapper08:49:420
162159938653,319cyclictest28780-21strings07:40:440
162159937937,328cyclictest26425-21expr07:35:260
162159937235,0cyclictest25733-21df_inode09:00:300
162159936928,317cyclictest4253-21lldpd07:28:020
162159936833,275cyclictest22349-21grep08:50:390
162159936753,300cyclictest4894-21runrttasks09:09:250
162159935832,311cyclictest24612-21cpu07:30:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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