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2025-12-04 - 18:42
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack4slot1.osadl.org (updated Thu Dec 04, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
375521790,2chrt0-21swapper/012:17:050
375521790,2chrt0-21swapper/012:17:050
2100521470,3sleep30-21swapper/312:01:013
2100521470,3sleep30-21swapper/312:01:013
1692321470,3sleep20-21swapper/211:56:052
1692321470,3sleep20-21swapper/211:56:052
683821160,2sleep121-21ksoftirqd/110:27:141
683821160,2sleep121-21ksoftirqd/110:27:141
675621130,3sleep30-21swapper/311:43:573
675621130,3sleep30-21swapper/311:43:573
2269021040,2sleep10-21swapper/112:38:451
1506421010,2sleep30-21swapper/311:53:213
1506421010,2sleep30-21swapper/311:53:213
110192990,3sleep30-21swapper/309:51:523
110192990,3sleep30-21swapper/309:51:523
224032950,3chrt0-21swapper/310:06:193
168822940,3sleep10-21swapper/111:17:381
168822940,3sleep10-21swapper/111:17:381
90852910,3sleep30-21swapper/312:23:273
90852910,3sleep30-21swapper/312:23:273
115552900,2sleep011556-21/usr/sbin/munin11:11:140
115552900,2sleep011556-21/usr/sbin/munin11:11:140
217312890,1chrt0-21swapper/008:15:520
137122890,3sleep30-21swapper/310:36:093
137122890,3sleep30-21swapper/310:36:093
268312870,3sleep30-21swapper/309:31:183
268312870,3sleep30-21swapper/309:31:183
132252870,3chrt13224-21latency_hist10:35:522
132252870,3chrt13224-21latency_hist10:35:522
235072840,3sleep30-21swapper/312:40:033
111112810,3sleep30-21swapper/312:26:093
111112810,3sleep30-21swapper/312:26:093
205012790,3sleep20-21swapper/210:05:052
205012790,3sleep20-21swapper/210:05:052
121992720,3sleep30-21swapper/311:11:373
121992720,3sleep30-21swapper/311:11:373
314882710,2chrt0-21swapper/307:15:563
270342700,3chrt0-21swapper/110:51:101
270342700,3chrt0-21swapper/110:51:101
169112690,3sleep20-21swapper/210:39:532
169112690,3sleep20-21swapper/210:39:532
31022996817,13cyclictest21-21ksoftirqd/109:16:041
297762680,6sleep30-21swapper/312:11:073
297762680,6sleep30-21swapper/312:11:073
279622660,4chrt0-21swapper/208:31:092
279622660,4chrt0-21swapper/208:31:092
3102199653,49cyclictest13556-21ssh10:36:060
3102199653,49cyclictest13556-21ssh10:36:060
108362630,2sleep10-21swapper/109:11:151
108362630,2sleep10-21swapper/109:11:151
92222600,2chrt0-21swapper/309:06:183
92222600,2chrt0-21swapper/309:06:183
92222600,2chrt0-21swapper/309:06:183
53072570,3chrt0-21swapper/312:19:293
53072570,3chrt0-21swapper/312:19:293
313292570,3chrt0-21swapper/310:56:143
313292570,3chrt0-21swapper/310:56:143
105612570,3sleep30-21swapper/311:48:033
3102199551,48cyclictest13313-21sh09:56:040
309792550,3sleep00-21swapper/007:11:240
26392550,2sleep10-21swapper/109:41:331
26392550,2sleep10-21swapper/109:41:331
263562550,3sleep00-21swapper/012:06:160
263562550,3sleep00-21swapper/012:06:160
3102399525,6cyclictest131rcu_preempt11:51:032
3102399525,6cyclictest131rcu_preempt11:51:032
264422520,2sleep126493-21awk09:31:131
264422520,2sleep126493-21awk09:31:131
3102199503,39cyclictest14224-21ssh09:16:040
3102299492,36cyclictest13565-21ssh10:36:071
3102299492,36cyclictest13565-21ssh10:36:071
293542480,2sleep10-21swapper/108:36:031
3102199475,7cyclictest131rcu_preempt09:06:050
3102199475,7cyclictest131rcu_preempt09:06:050
3102199475,7cyclictest131rcu_preempt09:06:050
25282470,2sleep227-21ksoftirqd/212:16:112
25282470,2sleep227-21ksoftirqd/212:16:112
250972470,3sleep30-21swapper/310:48:593
250972470,3sleep30-21swapper/310:48:593
3102299466,4cyclictest131rcu_preempt10:01:021
3102299466,4cyclictest131rcu_preempt10:01:021
3102199462,31cyclictest31644-21taskset07:16:060
3102199462,31cyclictest31644-21taskset07:16:060
71382450,3sleep20-21swapper/209:01:152
71382450,3sleep20-21swapper/209:01:152
286812450,3sleep10-21swapper/110:15:291
286812450,3sleep10-21swapper/110:15:291
3102399441,40cyclictest542-21snmpd11:31:062
3102399441,40cyclictest542-21snmpd11:31:062
17362440,2sleep10-21swapper/111:00:021
17362440,2sleep10-21swapper/111:00:021
70382430,4sleep10-21swapper/109:01:141
70382430,4sleep10-21swapper/109:01:141
150992430,2sleep00-21swapper/011:53:260
150992430,2sleep00-21swapper/011:53:260
75632420,3sleep20-21swapper/207:36:122
75632420,3sleep20-21swapper/207:36:122
212332420,2sleep121396-21ssh12:01:081
212332420,2sleep121396-21ssh12:01:081
212332420,2sleep121396-21ssh12:01:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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