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2026-03-11 - 17:23
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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 rackcslot4.osadl.org (updated Wed Mar 11, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9766402258179,29sleep00-21swapper/007:07:580
9750652241199,28sleep10-21swapper/107:05:031
10304542540,4sleep00-21swapper/009:15:160
10234492540,4sleep00-21swapper/009:00:230
179699530,4rtkit-daemon1795-21rtkit-daemon10:29:501
10735712510,5sleep10-21swapper/110:14:211
179699500,4rtkit-daemon1795-21rtkit-daemon08:56:091
9842472490,4sleep10-21swapper/107:25:171
11175322490,4sleep1251rcuc/111:13:041
11126372480,3sleep11112641-21unixbench_multi11:05:271
179699370,4rtkit-daemon1795-21rtkit-daemon12:26:401
179699360,4rtkit-daemon1795-21rtkit-daemon09:16:381
179699350,26rtkit-daemon10179472chrt08:45:301
976956993412,10cyclictest1048480-21ssh09:39:450
976956993411,8cyclictest13-21ksoftirqd/009:30:210
179699340,4rtkit-daemon1795-21rtkit-daemon11:02:531
179699340,4rtkit-daemon1795-21rtkit-daemon09:09:550
97696099331,13cyclictest1024457-21apt-get09:05:151
97696099331,11cyclictest1089050-21sh10:35:001
976956993330,2cyclictest66950irq/132-enp2s012:16:250
179699330,3rtkit-daemon1795-21rtkit-daemon10:28:230
179699330,3rtkit-daemon1795-21rtkit-daemon07:12:221
10445742330,4sleep10-21swapper/109:34:551
97696099311,26cyclictest982070-40apt-check07:20:181
97695699317,8cyclictest13-21ksoftirqd/012:37:030
976960992911,11cyclictest1018582-21apt-get08:50:131
97695699299,8cyclictest13-21ksoftirqd/009:28:340
97695699296,8cyclictest13-21ksoftirqd/011:16:580
976956992925,3cyclictest66950irq/132-enp2s010:08:550
179699290,21rtkit-daemon1122090-21/usr/sbin/munin11:20:111
10023512290,21sleep01002345-21fschecks_count08:10:170
97695699289,8cyclictest13-21ksoftirqd/008:37:550
97695699286,7cyclictest13-21ksoftirqd/009:14:010
976956992824,2cyclictest66950irq/132-enp2s009:23:520
179699280,5rtkit-daemon979949-21cut07:15:161
976960992712,3cyclictest1010161-21turbostat08:30:011
97695699275,8cyclictest13-21ksoftirqd/010:17:490
97695699275,7cyclictest13-21ksoftirqd/011:27:460
97695699272,17cyclictest1150762-21apt-get12:00:120
97695699271,7cyclictest1026210-21diskmemload12:08:290
976956992714,11cyclictest13-21ksoftirqd/011:30:210
97696099265,3cyclictest0-21swapper/109:45:021
976960992620,5cyclictest3764937-1kworker/u9:209:57:181
976960992611,9cyclictest1149722-1kworker/u9:112:35:121
97695699267,5cyclictest0-21swapper/008:47:050
97695699266,7cyclictest13-21ksoftirqd/011:05:500
97695699263,8cyclictest13-21ksoftirqd/009:56:330
97695699261,7cyclictest1026210-21diskmemload12:14:260
976956992612,10cyclictest979617-21apt-get07:15:120
97696099259,10cyclictest1074092-21apt-get10:15:121
97696099251,4cyclictest1099648-21python310:50:021
976960992511,9cyclictest1069251-1kworker/u9:010:35:131
97695699256,7cyclictest13-21ksoftirqd/011:58:060
976956992511,4cyclictest1026210-21diskmemload11:14:120
976956992511,3cyclictest1026210-21diskmemload10:56:180
976956992511,3cyclictest1026210-21diskmemload10:21:590
976956992510,9cyclictest1070697-21apt-get10:10:130
10857752250,4sleep00-21swapper/010:30:120
97696099249,9cyclictest1136437-21apt-get11:40:141
97696099249,9cyclictest1055588-1kworker/u9:109:50:121
97696099245,17cyclictest0-21swapper/107:37:181
97696099244,3cyclictest1026210-21diskmemload11:27:161
97696099242,15cyclictest1012710-21apt-get08:35:141
97696099242,15cyclictest1006447-21apt-get08:20:141
976960992410,9cyclictest1029724-1kworker/u9:109:25:141
97695699246,4cyclictest0-21swapper/010:35:530
97695699242,16cyclictest986417-21apt-get07:30:120
976956992412,7cyclictest66950irq/132-enp2s011:35:120
976956992411,3cyclictest1026210-21diskmemload12:26:120
976956992411,3cyclictest1026210-21diskmemload11:40:400
976956992410,4cyclictest1026210-21diskmemload10:45:080
976956992410,4cyclictest1026210-21diskmemload09:54:530
9926062230,2sleep00-21swapper/007:45:130
97696099239,10cyclictest0-21swapper/107:55:161
97696099234,17cyclictest0-21swapper/107:40:171
97696099232,14cyclictest1143543-21apt-get11:50:151
97696099232,14cyclictest1026474-21apt-get09:10:141
97695699239,4cyclictest1026210-21diskmemload12:24:570
97695699233,8cyclictest13-21ksoftirqd/012:30:070
97695699232,15cyclictest1052469-21apt-get09:45:140
97695699232,14cyclictest1048879-21apt-get09:40:150
976956992319,2cyclictest66950irq/132-enp2s011:53:560
976956992312,10cyclictest13-21ksoftirqd/010:45:010
179699230,15rtkit-daemon1047119-21ssh09:36:271
97696099229,11cyclictest1134008-21unixbench-2d11:35:231
97696099224,17cyclictest1012220-21apt-config08:35:011
97696099224,11cyclictest1078207-21apt-get10:20:121
97696099222,14cyclictest998216-21apt-get08:00:131
976960992217,3cyclictest1093321-21grep10:40:161
976960992214,4cyclictest1026210-21diskmemload09:22:371
976960992212,5cyclictest1063333-21apt-get10:00:121
97695699222,14cyclictest982097-21apt-get07:20:210
976956992214,6cyclictest1795-21rtkit-daemon07:13:040
179699220,3rtkit-daemon0-21swapper/110:54:361
179699220,3rtkit-daemon0-21swapper/107:30:191
97696099213,16cyclictest1055961-21latency_hist09:50:011
97696099213,11cyclictest1165084-21apt-get12:20:131
97696099213,10cyclictest1147132-21apt-get11:55:121
97696099212,14cyclictest1157843-21apt-get12:10:111
97696099212,13cyclictest1118582-21apt-get11:15:151
97696099212,13cyclictest1022505-21apt-get09:00:121
97696099212,13cyclictest1014683-21apt-get08:40:141
97696099212,13cyclictest1003855-21apt-get08:15:061
97696099212,12cyclictest1002116-21apt-get08:10:141
97696099212,11cyclictest992342-21apt-get07:45:111
97696099212,11cyclictest1172053-21apt-get12:30:111
976960992118,2cyclictest1118277-21kworker/1:111:30:151
97696099211,18cyclictest1154079-21munin-run12:05:001
976960992111,7cyclictest1162423-21pmu-power12:15:221
97695699218,7cyclictest13-21ksoftirqd/008:05:120
97695699212,13cyclictest994297-21apt-get07:50:140
179699210,14rtkit-daemon0-21swapper/110:07:211
97696099202,12cyclictest1103963-21apt-get10:55:141
97696099201,14cyclictest1140052-21taskset11:45:121
97696099201,13cyclictest994279-21/usr/sbin/munin07:50:271
97695699202,2cyclictest141rcu_preempt08:35:010
976956992013,5cyclictest13-21ksoftirqd/008:00:010
10221002200,18sleep00-21swapper/008:58:130
976960991912,5cyclictest1156138-21seq12:06:371
97695699195,5cyclictest1006448-21dpkg08:20:100
97695699193,2cyclictest141rcu_preempt08:50:130
97695699191,8cyclictest1124081-21ssh11:21:500
976956991915,2cyclictest1142627-21ssh11:48:280
976956991914,3cyclictest984480-21gltestperf07:25:200
976956991914,3cyclictest1100300-21cpu10:50:120
976956991912,5cyclictest998638-21gltestperf08:00:170
976956991912,5cyclictest989822-21seq07:37:040
97695699190,17cyclictest1109435-21ssh11:00:590
97696099180,16cyclictest0-21swapper/108:10:021
97695699189,7cyclictest990412-21grep07:40:150
97695699189,7cyclictest1008459-21cat08:25:130
97695699182,10cyclictest1004453-21/usr/sbin/munin08:15:260
976956991811,5cyclictest1016169-21seq08:42:210
976956991713,3cyclictest66950irq/132-enp2s010:00:210
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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