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2026-01-12 - 10:24
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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 Mon Jan 12, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71740rcu_preempt1959-21runrttasks21:27:280
71740rcu_preempt1959-21runrttasks21:27:280
71680rcu_preempt0-21swapper/123:44:331
71680rcu_preempt0-21swapper/123:44:331
71590rcu_preempt0-21swapper/022:07:490
71590rcu_preempt0-21swapper/022:07:490
71470rcu_preempt26495-21kworker/0:123:15:450
71470rcu_preempt26495-21kworker/0:123:15:450
71470rcu_preempt26495-21kworker/0:123:15:450
1599440migration/012883-21latency22:00:580
1599440migration/012883-21latency22:00:580
71430rcu_preempt0-21swapper/223:05:482
71430rcu_preempt0-21swapper/223:05:482
71430rcu_preempt0-21swapper/223:05:482
46250420irq/120-QManpo15042-2110:48:551
46250420irq/120-QManpo15042-2110:48:551
46250420irq/120-QManpo15042-2110:48:551
71410rcu_preempt31784-1kworker/0:3H21:51:020
71410rcu_preempt31784-1kworker/0:3H21:51:020
71410rcu_preempt23445-21copy19:40:520
71410rcu_preempt23445-21copy19:40:520
71410rcu_preempt23445-21copy19:40:520
71410rcu_preempt0-21swapper/222:25:082
71410rcu_preempt0-21swapper/222:25:082
71400rcu_preempt23473-1kworker/0:1H21:15:410
71400rcu_preempt23473-1kworker/0:1H21:15:410
46050400irq/122-QManpo0-210
46050400irq/122-QManpo0-210
46050400irq/122-QManpo0-210
175552400sleep017470-1kworker/0:3H19:17:300
175552400sleep017470-1kworker/0:3H19:17:300
175552400sleep017470-1kworker/0:3H19:17:300
71390rcu_preempt21530-21taskset00:09:291
71390rcu_preempt21530-21taskset00:09:291
71390rcu_preempt21530-21taskset00:09:291
71390rcu_preempt0-21swapper/200:25:352
71390rcu_preempt0-21swapper/200:25:352
71390rcu_preempt0-21swapper/119:20:101
71390rcu_preempt0-21swapper/119:20:101
71390rcu_preempt0-21swapper/119:20:101
71390rcu_preempt0-21swapper/021:46:100
71390rcu_preempt0-21swapper/021:46:100
71390rcu_preempt0-21swapper/000:40:380
71390rcu_preempt0-21swapper/000:40:380
71390rcu_preempt0-21swapper/000:40:380
1599390migration/01577-21taskset22:37:220
1599390migration/01577-21taskset22:37:220
1599390migration/01577-21taskset22:37:220
71380rcu_preempt8842-1kworker/2:2H00:18:122
71380rcu_preempt8842-1kworker/2:2H00:18:122
71380rcu_preempt8842-1kworker/2:2H00:18:122
71380rcu_preempt0-21swapper/221:15:482
71380rcu_preempt0-21swapper/221:15:482
71380rcu_preempt0-21swapper/219:25:472
71380rcu_preempt0-21swapper/219:25:472
71380rcu_preempt0-21swapper/123:32:301
71380rcu_preempt0-21swapper/123:32:301
71380rcu_preempt0-21swapper/123:10:461
71380rcu_preempt0-21swapper/123:10:461
71380rcu_preempt0-21swapper/022:26:210
71380rcu_preempt0-21swapper/022:26:210
71380rcu_preempt0-21swapper/022:10:460
71380rcu_preempt0-21swapper/022:10:460
71380rcu_preempt0-21swapper/021:36:210
71380rcu_preempt0-21swapper/021:36:210
71380rcu_preempt0-21swapper/021:36:210
71380rcu_preempt0-21swapper/021:19:050
71380rcu_preempt0-21swapper/021:19:050
71380rcu_preempt0-21swapper/021:10:360
71380rcu_preempt0-21swapper/021:10:360
71370rcu_preempt23067-21ssh23:15:482
71370rcu_preempt23067-21ssh23:15:482
71370rcu_preempt23067-21ssh23:15:482
71370rcu_preempt19486-1kworker/2:1H22:20:292
71370rcu_preempt19486-1kworker/2:1H22:20:292
71370rcu_preempt0-21swapper/319:40:483
71370rcu_preempt0-21swapper/319:40:483
71370rcu_preempt0-21swapper/319:40:483
71370rcu_preempt0-21swapper/200:01:382
71370rcu_preempt0-21swapper/200:01:382
71370rcu_preempt0-21swapper/123:58:051
71370rcu_preempt0-21swapper/123:58:051
71370rcu_preempt0-21swapper/023:35:390
71370rcu_preempt0-21swapper/023:35:390
71370rcu_preempt0-21swapper/022:21:580
71370rcu_preempt0-21swapper/022:21:580
71360rcu_preempt28876-21taskset22:29:041
71360rcu_preempt28876-21taskset22:29:041
71360rcu_preempt27202-21taskset19:51:100
71360rcu_preempt27202-21taskset19:51:100
71360rcu_preempt19771-21memory19:25:590
71360rcu_preempt19771-21memory19:25:590
71360rcu_preempt17158-21apt-get23:06:001
71360rcu_preempt17158-21apt-get23:06:001
71360rcu_preempt17158-21apt-get23:06:001
71360rcu_preempt16254-21taskset19:13:330
71360rcu_preempt16254-21taskset19:13:330
71360rcu_preempt11850-21diskstats22:55:502
71360rcu_preempt11850-21diskstats22:55:502
71360rcu_preempt11850-21diskstats22:55:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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