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2026-05-01 - 19:31
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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 rackaslot8.osadl.org (updated Fri May 01, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
224962314288,17sleep20-21swapper/207:09:002
222752289259,20sleep10-21swapper/107:06:101
225802267236,21sleep00-21swapper/007:09:510
222572248215,22sleep30-21swapper/307:05:553
158602620,0sleep30-21swapper/311:57:303
53352550,0sleep10-21swapper/109:23:561
259182540,0sleep00-21swapper/011:07:510
234662530,0sleep30-21swapper/307:10:143
212962490,0sleep30-21swapper/311:05:133
291732160,1sleep229172-21hddtemp_smartct12:05:142
282432160,0sleep30-21swapper/311:45:383
83342150,2sleep012-21ksoftirqd/011:16:000
197522150,1sleep10-21swapper/111:04:391
157402150,0sleep20-21swapper/211:01:442
128442140,0sleep20-21swapper/210:23:242
276982130,0sleep30-21swapper/308:30:003
241622130,0sleep20-21swapper/209:34:392
171442130,0sleep10-21swapper/109:49:001
309462120,0sleep10-21swapper/111:47:351
137652120,0chrt0-21swapper/311:00:213
129012120,0sleep00-21swapper/012:14:580
2269999104,2cyclictest21727-21munin-run09:15:010
5386290,0sleep10-21swapper/109:41:501
2778290,0sleep10-21swapper/111:50:131
227159996,2cyclictest26360-21pmu-power09:35:173
227159991,6cyclictest275-21systemd-journal09:11:263
227119998,1cyclictest28-21ksoftirqd/209:29:592
226999998,1cyclictest12-21ksoftirqd/009:40:000
17914290,0sleep30-21swapper/311:21:393
16615290,0chrt0-21swapper/009:30:120
5969280,3sleep228-21ksoftirqd/209:42:152
227159984,2cyclictest275-21systemd-journal09:03:513
227119984,3cyclictest275-21systemd-journal07:42:522
226999987,1cyclictest12-21ksoftirqd/011:40:000
226999987,1cyclictest12-21ksoftirqd/007:40:010
226999984,1cyclictest11556-21turbostat11:00:010
226999983,3cyclictest275-21systemd-journal08:05:330
26769270,0sleep30-21swapper/309:17:213
227159977,0cyclictest0-21swapper/312:00:103
227159973,1cyclictest0-21swapper/310:32:353
227159973,1cyclictest0-21swapper/310:20:213
227159972,3cyclictest275-21systemd-journal07:25:263
227119976,1cyclictest28-21ksoftirqd/209:19:592
227119972,3cyclictest275-21systemd-journal10:19:242
227039976,1cyclictest22-21ksoftirqd/107:25:001
227039972,3cyclictest19310-21munin-run12:00:011
226999973,3cyclictest658-21snmpd10:44:480
226999973,3cyclictest658-21snmpd10:30:070
20959270,0sleep20-21swapper/209:50:252
2018270,0sleep10-21swapper/112:08:221
11502270,0sleep10-21swapper/109:27:051
8006260,1sleep18011-21gltestperf07:45:151
30456260,0sleep10-21swapper/111:10:161
227159966,0cyclictest0-21swapper/311:16:023
227159963,2cyclictest658-21snmpd09:52:393
227159963,2cyclictest658-21snmpd09:26:393
227159963,2cyclictest504-21dbus-daemon12:30:573
227159963,2cyclictest4613-21df08:50:133
227159963,2cyclictest4613-21df08:50:133
227159963,2cyclictest4152-21ssh10:00:103
227159963,2cyclictest30990-21sh11:29:523
227159963,2cyclictest275-21systemd-journal12:23:543
227159963,2cyclictest275-21systemd-journal11:40:273
227159963,2cyclictest2654-21ssh11:31:293
227159963,2cyclictest19013-21sh09:30:563
227159963,2cyclictest15556-21ssh10:25:093
227159963,2cyclictest14673-21cut08:00:143
227159963,2cyclictest1314-21cat07:30:143
227159962,3cyclictest658-21snmpd12:36:363
227159962,3cyclictest658-21snmpd12:11:173
227159962,3cyclictest658-21snmpd12:09:263
227159962,3cyclictest658-21snmpd11:51:203
227159962,3cyclictest658-21snmpd11:35:263
227159962,3cyclictest658-21snmpd10:10:093
227159962,3cyclictest658-21snmpd09:57:003
227159962,3cyclictest658-21snmpd09:06:073
227159962,3cyclictest658-21snmpd08:40:263
227159962,3cyclictest658-21snmpd07:48:123
227159962,3cyclictest658-21snmpd07:40:063
227159962,3cyclictest658-21snmpd07:24:273
227159962,3cyclictest4122-21cut08:50:013
227159962,3cyclictest2898-21sensors_temp09:40:173
227159962,3cyclictest275-21systemd-journal10:15:143
227159962,3cyclictest275-21systemd-journal09:21:513
227159962,3cyclictest22508-21grep08:15:203
227159962,3cyclictest20942-21seq10:46:013
227159962,3cyclictest10564-21ntpq07:50:163
227159962,1cyclictest0-21swapper/312:16:353
227159962,1cyclictest0-21swapper/310:57:123
227159960,6cyclictest0-21swapper/308:39:463
227159960,6cyclictest0-21swapper/308:20:173
227159960,0cyclictest0-21swapper/311:10:593
227159960,0cyclictest0-21swapper/310:41:163
227159960,0cyclictest0-21swapper/310:36:133
227159960,0cyclictest0-21swapper/309:47:383
227119966,0cyclictest0-21swapper/208:50:122
227119966,0cyclictest0-21swapper/208:50:122
227119964,2cyclictest23022-21cron08:20:002
227119964,1cyclictest28-21ksoftirqd/209:10:002
227119964,1cyclictest0-21swapper/211:15:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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