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2025-06-10 - 20:11
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Tue Jun 10, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221637423880,8sleep12216368-21gltestperf07:05:191
22172992263223,26sleep00-21swapper/007:05:580
221781999122113,7cyclictest2258813-21fwupd08:49:051
125899760,7rtkit-daemon0-21swapper/112:27:490
125899740,4rtkit-daemon1257-21rtkit-daemon09:57:071
24183432640,4sleep10-21swapper/112:23:461
23513282630,3sleep00-21swapper/010:55:580
23010242630,5sleep00-21swapper/009:50:580
24242892600,9sleep013-21ksoftirqd/012:31:010
125899570,4rtkit-daemon1257-21rtkit-daemon11:19:500
22444332520,4sleep1251rcuc/108:15:011
125899520,7rtkit-daemon2217943-21apt-get07:10:171
125899520,4rtkit-daemon1257-21rtkit-daemon12:10:181
125899520,4rtkit-daemon1257-21rtkit-daemon08:35:201
125899490,4rtkit-daemon1257-21rtkit-daemon10:32:581
23354372470,5sleep10-21swapper/110:35:241
23771512450,2sleep10-21swapper/111:30:011
125899400,3rtkit-daemon1257-21rtkit-daemon11:41:531
125899400,3rtkit-daemon0-21swapper/011:21:110
125899390,3rtkit-daemon0-21swapper/010:53:001
125899380,3rtkit-daemon0-21swapper/011:02:050
22983202370,2sleep02267580-21diskmemload09:48:290
125899370,4rtkit-daemon849-21snmpd09:44:051
125899370,4rtkit-daemon0-21swapper/109:30:291
125899370,3rtkit-daemon0-21swapper/011:22:481
125899370,3rtkit-daemon0-21swapper/011:15:391
125899360,4rtkit-daemon1257-21rtkit-daemon10:09:551
125899360,4rtkit-daemon1257-21rtkit-daemon09:28:101
125899360,4rtkit-daemon1257-21rtkit-daemon08:05:201
125899360,3rtkit-daemon1257-21rtkit-daemon09:19:160
125899360,3rtkit-daemon0-21swapper/112:04:361
125899360,3rtkit-daemon0-21swapper/109:06:311
125899360,3rtkit-daemon0-21swapper/108:28:391
125899360,3rtkit-daemon0-21swapper/011:10:051
125899360,3rtkit-daemon0-21swapper/010:56:071
125899360,3rtkit-daemon0-21swapper/007:32:480
221781999350,13cyclictest22723822grep09:15:191
125899350,5rtkit-daemon2316576-21ssh10:10:380
125899350,4rtkit-daemon1257-21rtkit-daemon10:27:511
125899350,4rtkit-daemon1257-21rtkit-daemon10:11:071
125899350,4rtkit-daemon1257-21rtkit-daemon09:14:020
125899350,4rtkit-daemon1257-21rtkit-daemon08:52:511
125899350,3rtkit-daemon0-21swapper/108:21:161
125899340,3rtkit-daemon0-21swapper/111:57:490
125899340,3rtkit-daemon0-21swapper/110:36:430
125899340,3rtkit-daemon0-21swapper/108:55:530
125899330,4rtkit-daemon1257-21rtkit-daemon07:52:061
125899330,4rtkit-daemon1257-21rtkit-daemon07:42:100
125899330,4rtkit-daemon1257-21rtkit-daemon07:35:330
125899330,4rtkit-daemon1257-21rtkit-daemon07:22:300
125899330,4rtkit-daemon1257-21rtkit-daemon07:22:290
125899330,3rtkit-daemon1257-21rtkit-daemon12:07:041
125899330,3rtkit-daemon0-21swapper/108:16:060
125899330,3rtkit-daemon0-21swapper/107:28:570
125899330,2rtkit-daemon1257-21rtkit-daemon08:56:001
125899320,4rtkit-daemon1257-21rtkit-daemon07:10:490
125899320,3rtkit-daemon0-21swapper/111:45:270
125899320,3rtkit-daemon0-21swapper/108:35:330
125899310,5rtkit-daemon849-21snmpd11:27:140
125899310,4rtkit-daemon1257-21rtkit-daemon09:28:310
125899310,4rtkit-daemon0-21swapper/108:21:240
125899310,3rtkit-daemon0-21swapper/111:42:000
125899310,3rtkit-daemon0-21swapper/109:23:300
125899310,3rtkit-daemon0-21swapper/007:24:511
125899310,3rtkit-daemon0-21swapper/007:24:511
125899300,4rtkit-daemon1257-21rtkit-daemon07:51:520
125899300,4rtkit-daemon0-21swapper/110:40:270
125899300,3rtkit-daemon0-21swapper/110:24:460
125899300,3rtkit-daemon0-21swapper/109:06:370
125899300,3rtkit-daemon0-21swapper/108:10:570
125899300,3rtkit-daemon0-21swapper/007:15:191
2217819992912,4cyclictest26-21ksoftirqd/110:23:511
125899290,4rtkit-daemon0-21swapper/109:33:200
125899290,3rtkit-daemon0-21swapper/112:10:040
125899290,3rtkit-daemon0-21swapper/111:51:510
125899290,3rtkit-daemon0-21swapper/110:25:210
125899290,3rtkit-daemon0-21swapper/108:05:050
125899290,3rtkit-daemon0-21swapper/009:52:011
221781999286,2cyclictest141rcu_preempt12:38:221
2217819992820,6cyclictest26-21ksoftirqd/112:20:011
2217819992812,2cyclictest141rcu_preempt09:45:191
2217819992810,3cyclictest26-21ksoftirqd/112:25:301
221781999277,5cyclictest26-21ksoftirqd/110:46:581
221781999276,9cyclictest26-21ksoftirqd/109:20:131
2217819992717,5cyclictest2263387-40apt-check09:00:121
221781999270,7cyclictest0-21swapper/107:41:521
125899270,4rtkit-daemon1257-21rtkit-daemon08:40:270
125899270,4rtkit-daemon1257-21rtkit-daemon08:34:090
125899270,1rtkit-daemon1257-21rtkit-daemon11:57:561
24002022260,11sleep02400208-21ssh12:00:050
221781999269,2cyclictest141rcu_preempt10:40:131
221781999267,8cyclictest26-21ksoftirqd/111:05:051
221781999263,16cyclictest2232333-21apt-get07:45:161
221781999262,10cyclictest2267883-21apt-get09:10:151
2217819992618,6cyclictest26-21ksoftirqd/111:30:011
2217819992618,6cyclictest26-21ksoftirqd/108:00:001
125899260,3rtkit-daemon1257-21rtkit-daemon11:35:530
125899260,3rtkit-daemon0-21swapper/112:24:340
125899260,1rtkit-daemon1257-21rtkit-daemon11:51:231
24051142250,4sleep00-21swapper/012:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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