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2025-11-26 - 10:16
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Wed Nov 26, 2025 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3206257999617,39cyclictest3382656-21/usr/sbin/munin00:20:240
3206257998910,59cyclictest1-21systemd22:35:420
3206257998628,39cyclictest788-21systemd-logind21:15:010
3206260997637,39cyclictest0-21swapper/300:25:173
3206257997658,18cyclictest32314452sleep019:51:500
3206257997658,18cyclictest32314452sleep019:51:490
3206257997313,59cyclictest3214360-21taskset19:22:020
3206257997112,39cyclictest3209801-21expr19:15:110
3206257997032,38cyclictest0-21swapper/023:51:360
3206257997032,38cyclictest0-21swapper/023:51:360
320625799679,39cyclictest3234414-21kworker/0:1+ice21:08:080
320625799677,59cyclictest3345169-21kworker/0:2+ice23:26:470
320625799677,59cyclictest3293627-21kworker/0:1+ice23:14:000
3206257996547,18cyclictest85250irq/35-eno1-TxRx-120:05:110
3206257996527,19cyclictest3376975-21cut00:10:020
3206257995840,0cyclictest0-21swapper/020:32:340
320625799580,39cyclictest3334809-21smartctl22:55:160
3206257995739,18cyclictest171ktimers/021:03:520
3206257995738,0cyclictest0-21swapper/023:41:220
3206257995719,38cyclictest0-21swapper/023:03:100
3206257995638,18cyclictest171ktimers/021:20:340
3206257995618,19cyclictest3321407-21ntp_states22:30:190
3206257995618,0cyclictest0-21swapper/023:55:240
3206257995538,17cyclictest0-21swapper/019:33:580
3206257995537,18cyclictest171ktimers/020:29:440
3206257995519,36cyclictest0-21swapper/021:18:540
3206257995517,19cyclictest3234414-21kworker/0:1+ice20:00:560
3206257995436,18cyclictest874-21mta-sts-daemon00:32:550
3206257995416,19cyclictest3393413-21chrt00:39:540
3206257995416,19cyclictest3202981-21kworker/0:2+ice19:36:240
320626499535,45cyclictest0-21swapper/721:45:177
3206261995314,19cyclictest0-21swapper/422:20:184
3206257995319,15cyclictest0-21swapper/019:47:260
3206257995319,15cyclictest0-21swapper/000:01:260
3206257995319,15cyclictest0-21swapper/000:01:250
3206257995318,15cyclictest0-21swapper/022:05:570
3206257995315,19cyclictest3234414-21kworker/0:1+ice20:38:150
3206257995314,39cyclictest0-21swapper/023:32:080
3206257995314,39cyclictest0-21swapper/022:10:230
3206257995314,39cyclictest0-21swapper/000:19:480
3206257995314,39cyclictest0-21swapper/000:19:480
3206261995251,1cyclictest0-21swapper/423:05:194
3206261995233,19cyclictest0-21swapper/422:10:534
3206257995234,18cyclictest85250irq/35-eno1-TxRx-120:00:020
3206257995234,18cyclictest85250irq/35-eno1-TxRx-120:00:010
3206257995234,18cyclictest171ktimers/020:14:480
3206257995234,18cyclictest171ktimers/020:14:470
3206257995213,39cyclictest0-21swapper/022:17:320
3206257995213,39cyclictest0-21swapper/020:41:060
3206257995213,19cyclictest0-21swapper/019:25:190
3206264995132,19cyclictest0-21swapper/721:50:187
3206257995113,38cyclictest3293024-21/usr/sbin/munin21:40:240
3206257995112,39cyclictest0-21swapper/020:48:510
3206257995111,39cyclictest0-21swapper/020:22:160
320626199509,39cyclictest0-21swapper/400:25:164
3206258995012,19cyclictest0-21swapper/100:10:171
3206257995032,18cyclictest0-21swapper/022:54:050
3206261994930,19cyclictest3274520-21kworker/u32:3+rpciod21:10:484
3206258994911,19cyclictest0-21swapper/123:20:171
320625799499,39cyclictest0-21swapper/000:15:010
3206257994931,18cyclictest0-21swapper/023:17:030
3206257994931,18cyclictest0-21swapper/022:48:480
3206257994931,18cyclictest0-21swapper/022:23:410
3206257994931,18cyclictest0-21swapper/021:51:460
3206257994930,19cyclictest0-21swapper/020:58:370
3206257994930,19cyclictest0-21swapper/019:10:210
3206257994910,39cyclictest3293627-21kworker/0:1+ice21:57:110
3206257994910,39cyclictest0-21swapper/022:25:520
320626199488,39cyclictest0-21swapper/422:00:184
320625799489,39cyclictest0-21swapper/020:53:260
320625799489,39cyclictest0-21swapper/019:41:210
3206257994830,18cyclictest0-21swapper/022:40:450
3206257994829,19cyclictest0-21swapper/021:37:460
3206261994728,19cyclictest0-21swapper/423:34:584
320626099479,19cyclictest0-21swapper/319:55:163
320626099479,19cyclictest0-21swapper/319:55:163
320625899479,19cyclictest0-21swapper/120:45:171
320625799478,39cyclictest3357092-21apt23:35:110
3206257994729,18cyclictest0-21swapper/023:49:570
3206257994729,18cyclictest0-21swapper/021:32:140
3206257994728,19cyclictest0-21swapper/023:05:510
3206257994728,19cyclictest0-21swapper/022:01:020
3206257994728,19cyclictest0-21swapper/020:19:220
3206257994727,19cyclictest0-21swapper/021:48:230
3206257994627,19cyclictest0-21swapper/021:26:010
3206257994625,19cyclictest0-21swapper/023:21:200
320626499457,19cyclictest0-21swapper/721:00:187
320626199456,39cyclictest0-21swapper/422:50:134
3206257994527,18cyclictest0-21swapper/000:27:480
320626299445,39cyclictest0-21swapper/523:40:175
3206258994425,19cyclictest0-21swapper/100:20:181
320626499422,39cyclictest0-21swapper/721:20:187
3206258994242,0cyclictest0-21swapper/120:05:121
320626499413,19cyclictest0-21swapper/722:55:177
320626499412,19cyclictest0-21swapper/700:10:167
3206264994040,0cyclictest0-21swapper/722:35:207
320626399390,39cyclictest0-21swapper/619:21:146
3206260993919,20cyclictest52-21ksoftirqd/322:50:143
320626399380,19cyclictest0-21swapper/600:00:186
320626399380,19cyclictest0-21swapper/600:00:176
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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