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2026-05-01 - 04:47
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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 Fri May 01, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74287299846,59cyclictest855341-21chrt22:30:334
742872997839,20cyclictest887962-21ntpq23:30:214
742872997618,39cyclictest776-21dbus-daemon22:10:014
742872997113,39cyclictest914931-21aten2.4_rfpower00:25:154
742872997032,38cyclictest0-21swapper/423:48:074
742872997012,39cyclictest878468-21kworker/u32:2+events_unbound23:18:434
742872996931,19cyclictest913411-21ntpq00:20:194
742872996829,19cyclictest0-21swapper/422:26:144
742872996728,19cyclictest0-21swapper/419:18:454
74287299669,38cyclictest792851-21kworker/u32:0+events_unbound22:49:194
74287299669,38cyclictest792851-21kworker/u32:0+events_unbound22:49:194
74287299668,39cyclictest753657-21taskset19:29:594
742872996628,38cyclictest0-21swapper/423:37:154
74287299647,18cyclictest759544-21cat19:40:014
742872996425,19cyclictest0-21swapper/400:07:594
74287299635,39cyclictest833509-21chrt21:50:294
742872996224,19cyclictest788663-21ntpq20:30:224
74287299600,21cyclictest815828-21if_err_enxbe3af21:20:174
74287299590,20cyclictest802833-21unixbench-2d20:55:234
74287099590,19cyclictest0-21swapper/222:05:152
742872995819,39cyclictest0-21swapper/420:00:594
74287299580,39cyclictest842704-21cpu22:10:134
742872995617,39cyclictest917679-21aten2.4-expect00:30:134
742872995536,19cyclictest839598-21systemd-run22:05:014
74287299550,36cyclictest742709-21kworker/u32:2+events_unbound19:40:194
742872995416,38cyclictest883937-21kworker/u32:1+flush-8:023:52:174
742872995416,19cyclictest850506-21munin-run22:25:014
742872995415,39cyclictest874-21mta-sts-daemon19:52:414
74287299540,54cyclictest0-21swapper/420:14:174
742872995335,0cyclictest0-21swapper/421:25:234
742872995332,0cyclictest0-21swapper/419:12:594
742872995319,34cyclictest0-21swapper/420:15:234
742872995319,15cyclictest0-21swapper/422:40:574
742872995314,39cyclictest0-21swapper/422:55:104
742872995314,39cyclictest0-21swapper/422:38:364
742872995314,39cyclictest0-21swapper/419:45:594
742875995234,18cyclictest0-21swapper/719:20:157
742872995233,19cyclictest0-21swapper/421:55:194
742872995233,0cyclictest0-21swapper/400:16:554
742872995214,19cyclictest822115-21mailstats21:30:234
742872995214,19cyclictest0-21swapper/423:05:174
742872995214,19cyclictest0-21swapper/423:05:174
742872995213,39cyclictest0-21swapper/423:57:594
742872995213,20cyclictest0-21swapper/421:42:214
742872995213,19cyclictest0-21swapper/420:44:134
742872995132,19cyclictest0-21swapper/421:49:494
742872995130,0cyclictest0-21swapper/423:21:354
742872995113,19cyclictest807752-21ntpq21:05:214
74287299510,1cyclictest0-21swapper/420:50:204
742872995032,18cyclictest0-21swapper/421:15:354
742872995032,18cyclictest0-21swapper/400:10:414
742872995031,19cyclictest0-21swapper/423:13:514
742872995031,19cyclictest0-21swapper/421:37:574
742872995031,19cyclictest0-21swapper/419:20:394
742872995012,19cyclictest774791-21meminfo20:05:174
742872995011,39cyclictest0-21swapper/422:51:094
742870995031,19cyclictest421ktimers/221:15:172
742872994931,18cyclictest0-21swapper/423:42:094
742872994931,18cyclictest0-21swapper/420:27:054
742872994931,18cyclictest0-21swapper/400:03:334
742872994930,19cyclictest0-21swapper/421:01:494
742872994930,19cyclictest0-21swapper/420:35:034
742872994911,20cyclictest319-21ice-ptp-0000:f4:00.023:02:154
742872994910,19cyclictest0-21swapper/421:10:174
74287299490,49cyclictest0-21swapper/420:20:154
742872994829,0cyclictest0-21swapper/400:35:294
74287299478,39cyclictest0-21swapper/419:56:574
74287299478,19cyclictest0-21swapper/423:25:054
742872994729,18cyclictest0-21swapper/422:15:054
742872994729,18cyclictest0-21swapper/419:32:034
74287599468,19cyclictest0-21swapper/721:00:177
74287499469,18cyclictest0-21swapper/621:00:176
742872994627,19cyclictest0-21swapper/420:49:274
742875994526,19cyclictest0-21swapper/723:40:187
74287199457,19cyclictest0-21swapper/300:20:153
74287199446,19cyclictest0-21swapper/320:20:153
74287199433,39cyclictest0-21swapper/323:45:153
742875994223,19cyclictest0-21swapper/721:50:167
742875994123,18cyclictest0-21swapper/700:15:167
74287599401,39cyclictest0-21swapper/720:55:167
74287199401,39cyclictest0-21swapper/322:20:153
74287099390,39cyclictest0-21swapper/200:15:162
74287099390,20cyclictest0-21swapper/223:35:162
742868993920,19cyclictest0-21swapper/000:25:180
742868993819,19cyclictest171ktimers/021:00:170
742875993718,19cyclictest0-21swapper/720:35:147
74287599370,18cyclictest0-21swapper/723:55:177
742871993717,19cyclictest792851-21kworker/u32:0+events_unbound21:45:083
742870993718,19cyclictest0-21swapper/222:35:162
742868993718,19cyclictest171ktimers/020:40:140
742868993718,19cyclictest0-21swapper/021:10:150
74287499360,17cyclictest0-21swapper/620:20:156
742868993635,1cyclictest0-21swapper/023:40:180
742868993614,19cyclictest883304-21kworker/0:0+ice23:35:160
74287599350,16cyclictest0-21swapper/720:50:167
74287599350,15cyclictest0-21swapper/722:00:157
74287599350,15cyclictest0-21swapper/721:25:177
74287599350,15cyclictest0-21swapper/720:25:157
742871993535,0cyclictest803763-21kworker/u32:2+rpciod21:03:053
742871993535,0cyclictest747937-21kworker/0:019:26:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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