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2025-12-13 - 12:32
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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 rack4slot4.osadl.org (updated Sat Dec 13, 2025 00:53:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71610rcu_preempt0-21swapper/322:03:023
71410rcu_preempt0-21swapper/100:25:251
71410rcu_preempt0-21swapper/100:25:251
71410rcu_preempt0-21swapper/020:44:420
722994010cyclictest0-21swapper/021:15:220
722994010cyclictest0-21swapper/021:15:220
71400rcu_preempt0-21swapper/021:13:460
71390rcu_preempt0-21swapper/323:45:213
71390rcu_preempt0-21swapper/323:45:213
71390rcu_preempt0-21swapper/022:32:210
71390rcu_preempt0-21swapper/022:32:210
71390rcu_preempt0-21swapper/020:20:170
71390rcu_preempt0-21swapper/000:04:490
71390rcu_preempt0-21swapper/000:04:490
71380rcu_preempt19102-21ssh23:35:160
71380rcu_preempt19102-21ssh23:35:160
71380rcu_preempt15953-21df_abs00:25:120
71380rcu_preempt15953-21df_abs00:25:120
71380rcu_preempt0-21swapper/322:50:533
71380rcu_preempt0-21swapper/223:50:492
71380rcu_preempt0-21swapper/223:50:492
71380rcu_preempt0-21swapper/120:05:011
71380rcu_preempt0-21swapper/120:05:011
71380rcu_preempt0-21swapper/000:12:590
71380rcu_preempt0-21swapper/000:12:590
722993716cyclictest9914-21ntp_states21:25:260
722993711cyclictest22451-21sshd00:37:150
722993711cyclictest22451-21sshd00:37:150
71370rcu_preempt8223-21ssh22:18:481
71370rcu_preempt8223-21ssh22:18:481
71370rcu_preempt24424-21ntp_offset21:50:240
71370rcu_preempt24424-21ntp_offset21:50:240
71370rcu_preempt19111-21ssh22:36:540
71370rcu_preempt19111-21ssh22:36:540
71370rcu_preempt18192-21egrep21:40:142
71370rcu_preempt18192-21egrep21:40:142
71370rcu_preempt0-21swapper/320:50:173
71370rcu_preempt0-21swapper/320:00:593
71370rcu_preempt0-21swapper/320:00:593
71370rcu_preempt0-21swapper/122:12:201
71370rcu_preempt0-21swapper/023:50:500
71370rcu_preempt0-21swapper/023:50:500
71370rcu_preempt0-21swapper/023:29:070
71370rcu_preempt0-21swapper/023:29:070
71370rcu_preempt0-21swapper/023:22:560
71370rcu_preempt0-21swapper/023:22:560
71370rcu_preempt0-21swapper/023:00:140
71370rcu_preempt0-21swapper/023:00:140
71370rcu_preempt0-21swapper/022:26:330
71370rcu_preempt0-21swapper/022:05:120
71370rcu_preempt0-21swapper/022:05:120
71370rcu_preempt0-21swapper/022:02:530
71370rcu_preempt0-21swapper/021:22:240
71370rcu_preempt0-21swapper/021:22:240
71370rcu_preempt0-21swapper/020:49:040
71370rcu_preempt0-21swapper/020:49:040
71370rcu_preempt0-21swapper/000:22:260
71370rcu_preempt0-21swapper/000:22:260
46250370irq/120-QManpo0-2110:48:541
46250370irq/120-QManpo0-2110:48:541
46250370irq/120-QManpo0-2110:48:541
71360rcu_preempt32471-1kworker/1:1H22:05:111
71360rcu_preempt32471-1kworker/1:1H22:05:111
71360rcu_preempt16340-21sh21:36:071
71360rcu_preempt16340-21sh21:36:071
71360rcu_preempt1559-21ssh23:05:110
71360rcu_preempt0-21swapper/223:36:292
71360rcu_preempt0-21swapper/223:36:292
71360rcu_preempt0-21swapper/223:34:292
71360rcu_preempt0-21swapper/223:34:292
71360rcu_preempt0-21swapper/222:33:482
71360rcu_preempt0-21swapper/222:33:482
71360rcu_preempt0-21swapper/200:42:332
71360rcu_preempt0-21swapper/200:42:332
71360rcu_preempt0-21swapper/200:42:332
71360rcu_preempt0-21swapper/200:31:012
71360rcu_preempt0-21swapper/123:20:031
71360rcu_preempt0-21swapper/123:20:031
71360rcu_preempt0-21swapper/123:07:221
71360rcu_preempt0-21swapper/122:42:491
71360rcu_preempt0-21swapper/122:42:491
71360rcu_preempt0-21swapper/121:46:461
71360rcu_preempt0-21swapper/120:30:111
71360rcu_preempt0-21swapper/100:14:531
71360rcu_preempt0-21swapper/100:14:531
71360rcu_preempt0-21swapper/022:21:500
71360rcu_preempt0-21swapper/022:21:500
71360rcu_preempt0-21swapper/021:55:390
71360rcu_preempt0-21swapper/021:55:390
71360rcu_preempt0-21swapper/021:47:180
71360rcu_preempt0-21swapper/020:14:070
71360rcu_preempt0-21swapper/019:50:530
71360rcu_preempt0-21swapper/019:50:530
71360rcu_preempt0-21swapper/000:06:380
72299359cyclictest0-21swapper/021:30:140
72299359cyclictest0-21swapper/021:30:140
722993515cyclictest20762-21diskstats22:40:130
722993515cyclictest20762-21diskstats22:40:130
722993513cyclictest22221-21diskstats20:30:160
71350rcu_preempt2323-21ssh00:01:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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