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2026-04-06 - 18:08
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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 rack3slot6.osadl.org (updated Mon Apr 06, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
567421040,7sleep0171rcuc/007:39:100
26621210119,33sleep10-21swapper/107:06:421
26903210014,38sleep00-21swapper/007:09:130
34932820,12chrt151rcu_preempt10:35:241
27115997858,13cyclictest26-21ksoftirqd/109:15:111
942727610,42sleep014-21ksoftirqd/007:50:120
942727610,42sleep014-21ksoftirqd/007:50:120
27115997531,37cyclictest26-21ksoftirqd/110:13:421
27113996738,24cyclictest14-21ksoftirqd/012:30:010
2711599664,57cyclictest20858-21sshd08:20:261
2711399665,54cyclictest10629-21apt-get09:25:130
27115996522,38cyclictest26-21ksoftirqd/110:06:511
2711399657,16cyclictest0-21swapper/010:05:240
2711399656,17cyclictest0-21swapper/009:50:130
2711399656,17cyclictest0-21swapper/007:25:130
2711399655,19cyclictest6582-21apt-get10:45:150
27115996413,37cyclictest26-21ksoftirqd/111:28:011
27113996439,19cyclictest14-21ksoftirqd/012:35:270
27113996428,15cyclictest14-21ksoftirqd/008:40:000
27113996422,37cyclictest14-21ksoftirqd/011:05:010
27115996219,29cyclictest26-21ksoftirqd/107:49:271
2711399626,49cyclictest27197-21apt-get07:10:110
27115996136,9cyclictest26-21ksoftirqd/108:10:201
27115996119,37cyclictest26-21ksoftirqd/108:00:341
27115996114,42cyclictest0-21swapper/111:41:051
27115996113,36cyclictest26-21ksoftirqd/111:47:041
27115996110,30cyclictest14113-21taskset09:35:111
27113996134,22cyclictest14-21ksoftirqd/012:15:260
27113996131,25cyclictest14-21ksoftirqd/010:50:220
242712610,5sleep10-21swapper/111:35:011
27115996037,8cyclictest26-21ksoftirqd/110:41:151
27115996014,41cyclictest2-21kthreadd08:26:551
27115996013,42cyclictest0-21swapper/109:55:211
27115996012,42cyclictest0-21swapper/110:15:471
27113996026,18cyclictest14-21ksoftirqd/008:45:300
2711599599,36cyclictest26-21ksoftirqd/109:33:471
27115995937,8cyclictest26-21ksoftirqd/109:21:151
27115995936,8cyclictest26-21ksoftirqd/109:11:211
27115995935,9cyclictest26-21ksoftirqd/112:20:411
27115995935,9cyclictest26-21ksoftirqd/109:49:231
2711399596,16cyclictest0-21swapper/007:15:110
27113995942,10cyclictest14-21ksoftirqd/007:30:120
27113995935,18cyclictest14-21ksoftirqd/011:15:390
27113995935,18cyclictest14-21ksoftirqd/008:09:510
27113995926,18cyclictest14-21ksoftirqd/009:10:110
27113995926,13cyclictest14-21ksoftirqd/012:35:010
27115995835,9cyclictest26-21ksoftirqd/112:32:001
27115995833,9cyclictest26-21ksoftirqd/111:05:461
2711599583,19cyclictest23865-21grep10:00:361
27115995816,37cyclictest0-21swapper/109:25:131
27115995815,38cyclictest26-21ksoftirqd/108:31:091
2711399585,48cyclictest0-21swapper/008:24:350
27113995841,11cyclictest14-21ksoftirqd/007:55:110
27113995834,18cyclictest14-21ksoftirqd/008:32:520
27115995734,9cyclictest26-21ksoftirqd/108:55:481
27115995734,8cyclictest26-21ksoftirqd/110:56:511
27115995733,9cyclictest26-21ksoftirqd/108:39:421
27115995733,9cyclictest26-21ksoftirqd/107:14:401
27115995720,31cyclictest4427-21wc12:10:171
27115995714,9cyclictest26-21ksoftirqd/108:06:451
2711399576,44cyclictest0-21swapper/011:40:110
27113995742,10cyclictest14-21ksoftirqd/010:30:130
2711599566,13cyclictest0-21swapper/107:40:211
2711599563,48cyclictest6641-21aten2.4_r3power10:45:191
27115995633,9cyclictest26-21ksoftirqd/109:50:391
27115995633,9cyclictest26-21ksoftirqd/108:40:471
27115995632,9cyclictest26-21ksoftirqd/111:50:271
27115995632,9cyclictest26-21ksoftirqd/111:18:391
27113995613,10cyclictest171rcuc/012:24:570
192072560,7sleep014-21ksoftirqd/011:20:150
2711599559,41cyclictest0-21swapper/110:23:121
2711599556,9cyclictest0-21swapper/107:19:491
2711599553,17cyclictest9311-21timerwakeupswit10:50:351
27115995515,20cyclictest5412-21seq07:37:081
2711399555,45cyclictest0-21swapper/008:53:270
27113995532,9cyclictest14-21ksoftirqd/011:50:300
27113995528,22cyclictest14-21ksoftirqd/010:39:010
27113995526,9cyclictest14-21ksoftirqd/009:35:520
2711399552,26cyclictest30048-21sh10:20:000
27113995515,10cyclictest171rcuc/009:24:090
27113995513,10cyclictest171rcuc/009:18:060
2711599544,46cyclictest0-21swapper/108:49:261
27115995430,9cyclictest26-21ksoftirqd/107:28:481
27115995410,9cyclictest0-21swapper/108:17:141
2711399543,45cyclictest30961-21ntp_states10:20:280
27113995431,19cyclictest14-21ksoftirqd/008:15:510
2711399542,47cyclictest26026-21latency_hist11:40:010
27113995415,35cyclictest14-21ksoftirqd/010:00:140
27113995413,10cyclictest171rcuc/011:08:140
2711599537,10cyclictest0-21swapper/111:00:301
2711599536,42cyclictest0-21swapper/107:30:181
2711599535,11cyclictest0-21swapper/111:20:361
2711599533,45cyclictest2463-21/usr/sbin/munin12:05:191
2711599533,15cyclictest28777-21kworker/1:208:50:241
27115995317,29cyclictest26-21ksoftirqd/112:00:291
27115995315,10cyclictest231irq_work/107:20:131
27115995311,37cyclictest0-21swapper/111:10:331
27115995310,39cyclictest0-21swapper/112:15:281
2711399538,17cyclictest14-21ksoftirqd/009:49:410
2711399535,43cyclictest0-21swapper/010:26:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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