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2026-08-19 - 20:16
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Wed Aug 19, 2026 13:01:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3732599199157,39cyclictest0-21swapper/2212:25:2915
3732599199157,39cyclictest0-21swapper/2212:25:2815
3734099188133,44cyclictest0-21swapper/3312:35:0227
3734099188133,44cyclictest0-21swapper/3312:35:0127
3734099188133,44cyclictest0-21swapper/3312:35:0127
3732599188178,8cyclictest0-21swapper/2212:15:4415
3732599188178,8cyclictest0-21swapper/2212:15:4315
3732599188178,8cyclictest0-21swapper/2212:15:4315
3730999186177,6cyclictest0-21swapper/809:20:1938
3730999186177,6cyclictest0-21swapper/809:20:1938
3730999186177,6cyclictest0-21swapper/809:20:1938
373409918572,103cyclictest0-21swapper/3312:25:1227
373409918572,103cyclictest0-21swapper/3312:25:1227
3732599185162,14cyclictest0-21swapper/2212:20:2115
3732599185162,14cyclictest0-21swapper/2212:20:2115
3732499184118,60cyclictest0-21swapper/2109:59:1614
3732499184118,60cyclictest0-21swapper/2109:59:1514
3732499184118,60cyclictest0-21swapper/2109:59:1514
3730699181134,38cyclictest0-21swapper/510:15:4235
3730699181134,38cyclictest0-21swapper/510:15:4235
373099918092,72cyclictest2447-21CPU38
3730999180173,5cyclictest0-21swapper/809:00:2738
3730999180173,5cyclictest0-21swapper/809:00:2738
3732099179139,27cyclictest0-21swapper/1709:29:199
3732099179139,27cyclictest0-21swapper/1709:29:199
3732599178155,15cyclictest0-21swapper/2212:30:4015
3732599178155,15cyclictest0-21swapper/2212:30:4015
3732599178155,15cyclictest0-21swapper/2212:30:4015
3732599178144,18cyclictest0-21swapper/2212:14:4115
3732599178144,18cyclictest0-21swapper/2212:14:4015
3732599178144,18cyclictest0-21swapper/2212:14:4015
3732799176133,24cyclictest0-21swapper/2410:53:4217
3732799176133,24cyclictest0-21swapper/2410:53:4217
3732599175141,25cyclictest0-21swapper/2207:30:2115
3730999175161,12cyclictest0-21swapper/809:55:2738
3730999175161,12cyclictest0-21swapper/809:55:2738
3730999175161,12cyclictest0-21swapper/809:55:2738
3730999174159,4cyclictest3543-21CPU38
3730999174159,4cyclictest3543-21CPU38
3730999174139,24cyclictest7249-21systemd-cgroups09:31:0338
3730999174139,24cyclictest7249-21systemd-cgroups09:31:0338
3730699174107,64cyclictest0-21swapper/511:00:0135
3730699174107,64cyclictest0-21swapper/511:00:0135
3730699174107,64cyclictest0-21swapper/511:00:0135
3732599173151,16cyclictest0-21swapper/2207:20:1315
3732599173151,16cyclictest0-21swapper/2207:20:1315
3730999173164,7cyclictest0-21swapper/809:11:4538
3730999173164,7cyclictest0-21swapper/809:11:4538
3733299172140,9cyclictest0-21swapper/2709:55:5020
3733299172140,9cyclictest0-21swapper/2709:55:4920
3733299172140,9cyclictest0-21swapper/2709:55:4920
3730999172159,9cyclictest3542-21CPU38
3730999172159,9cyclictest3542-21CPU38
3730999172159,9cyclictest3542-21CPU38
3732599171145,19cyclictest17479-21nfsd12:40:0215
3732599171145,19cyclictest17479-21nfsd12:40:0115
3731499171125,37cyclictest0-21swapper/1212:05:474
3731499171125,37cyclictest0-21swapper/1212:05:474
3730999171156,6cyclictest0-21swapper/809:18:2338
3730999171156,6cyclictest0-21swapper/809:18:2238
3730699170116,43cyclictest0-21swapper/510:12:5935
3730699170116,43cyclictest0-21swapper/510:12:5835
3733699169165,2cyclictest0-21swapper/3108:20:3725
3733699169165,2cyclictest0-21swapper/3108:20:3725
3730999169161,6cyclictest0-21swapper/810:07:4338
3730999169161,6cyclictest0-21swapper/810:07:4238
3730999169161,6cyclictest0-21swapper/810:07:4238
373359916879,84cyclictest2447-21CPU24
373359916879,84cyclictest2447-21CPU24
3730999167137,14cyclictest0-21swapper/810:00:3238
3730999167137,14cyclictest0-21swapper/810:00:3238
3733299166150,15cyclictest0-21swapper/2711:25:2520
3733299166150,15cyclictest0-21swapper/2711:25:2520
373239916627,126cyclictest0-21swapper/2012:30:1913
373239916627,126cyclictest0-21swapper/2012:30:1813
373239916627,126cyclictest0-21swapper/2012:30:1813
3730999166140,23cyclictest0-21swapper/807:59:0038
3730999166140,23cyclictest0-21swapper/807:59:0038
3730699166119,39cyclictest0-21swapper/511:12:1135
3730699166119,39cyclictest0-21swapper/511:12:1135
3733299165152,12cyclictest0-21swapper/2711:01:5620
3733299165152,12cyclictest0-21swapper/2711:01:5620
3733299165152,12cyclictest0-21swapper/2711:01:5620
3730699165139,19cyclictest0-21swapper/507:33:2235
3732599164150,13cyclictest0-21swapper/2211:19:2115
3732599164150,13cyclictest0-21swapper/2211:19:2115
3732499164137,19cyclictest0-21swapper/2111:38:3414
3732499164137,19cyclictest0-21swapper/2111:38:3414
37323991646,120cyclictest1791irq_work/2009:20:2613
37323991646,120cyclictest1791irq_work/2009:20:2613
37323991646,120cyclictest1791irq_work/2009:20:2613
3733399163154,7cyclictest0-21swapper/2812:00:5121
3733399163154,7cyclictest0-21swapper/2812:00:5121
3733299163138,12cyclictest0-21swapper/2709:15:0620
3733299163138,12cyclictest0-21swapper/2709:15:0620
3732599163123,19cyclictest0-21swapper/2210:08:0015
3732599163123,19cyclictest0-21swapper/2210:08:0015
3732599163123,19cyclictest0-21swapper/2210:08:0015
3732599163116,11cyclictest171rcu_preempt10:15:3415
3732599163116,11cyclictest171rcu_preempt10:15:3415
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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