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2026-04-02 - 17:56
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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 Thu Apr 02, 2026 12:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71810rcu_preempt0-21swapper/009:36:500
71810rcu_preempt0-21swapper/009:36:500
71600rcu_preempt0-21swapper/011:40:560
71600rcu_preempt0-21swapper/011:40:560
71570rcu_preempt0-21swapper/111:48:091
71570rcu_preempt0-21swapper/111:48:091
71530rcu_preempt0-21swapper/310:33:103
71530rcu_preempt0-21swapper/310:33:103
2171199462cyclictest13421-21/usr/sbin/munin10:02:321
2171199462cyclictest13421-21/usr/sbin/munin10:02:321
2171199462cyclictest13421-21/usr/sbin/munin10:02:321
71450rcu_preempt28695-21apt-get09:32:262
71450rcu_preempt28695-21apt-get09:32:262
71450rcu_preempt0-21swapper/012:05:280
71450rcu_preempt0-21swapper/012:05:280
71450rcu_preempt0-21swapper/012:05:280
71430rcu_preempt25682-1kworker/1:0H11:22:291
71430rcu_preempt25682-1kworker/1:0H11:22:291
21711994311cyclictest46250irq/120-QMan10:48:551
21711994311cyclictest46250irq/120-QMan10:48:551
21711994311cyclictest46250irq/120-QMan10:48:551
71420rcu_preempt0-21swapper/011:06:410
71420rcu_preempt0-21swapper/011:06:410
71410rcu_preempt0-21swapper/310:47:443
71410rcu_preempt0-21swapper/310:47:443
71410rcu_preempt0-21swapper/307:08:413
71410rcu_preempt0-21swapper/307:08:413
71410rcu_preempt0-21swapper/212:37:392
71410rcu_preempt0-21swapper/212:37:392
71410rcu_preempt0-21swapper/212:37:392
71410rcu_preempt0-21swapper/212:07:102
71410rcu_preempt0-21swapper/212:07:102
71410rcu_preempt0-21swapper/212:07:102
71400rcu_preempt0-21swapper/012:27:180
71400rcu_preempt0-21swapper/012:27:180
46050400irq/122-QManpo21629-2110:48:550
46050400irq/122-QManpo21629-2110:48:550
71390rcu_preempt0-21swapper/309:43:443
71390rcu_preempt0-21swapper/309:43:443
71390rcu_preempt0-21swapper/309:43:443
71390rcu_preempt0-21swapper/212:32:332
71390rcu_preempt0-21swapper/212:32:332
71390rcu_preempt0-21swapper/212:27:152
71390rcu_preempt0-21swapper/111:52:181
71390rcu_preempt0-21swapper/111:52:181
71390rcu_preempt0-21swapper/111:52:181
71390rcu_preempt0-21swapper/010:44:010
71390rcu_preempt0-21swapper/010:44:010
71390rcu_preempt0-21swapper/010:44:010
71390rcu_preempt0-21swapper/010:12:350
71390rcu_preempt0-21swapper/010:12:350
71380rcu_preempt5448-21grep11:42:352
71380rcu_preempt5448-21grep11:42:352
71380rcu_preempt5448-21grep11:42:352
71380rcu_preempt29402-21apt-get12:27:292
71380rcu_preempt29402-21apt-get12:27:292
71380rcu_preempt27513-21sh09:28:552
71380rcu_preempt27513-21sh09:28:552
71380rcu_preempt12737-21ssh10:57:440
71380rcu_preempt12737-21ssh10:57:440
71380rcu_preempt0-21swapper/211:12:282
71380rcu_preempt0-21swapper/211:12:282
71380rcu_preempt0-21swapper/211:09:042
71380rcu_preempt0-21swapper/211:09:042
71380rcu_preempt0-21swapper/210:50:222
71380rcu_preempt0-21swapper/210:50:222
71380rcu_preempt0-21swapper/210:44:472
71380rcu_preempt0-21swapper/210:44:472
71380rcu_preempt0-21swapper/210:44:472
71380rcu_preempt0-21swapper/210:28:372
71380rcu_preempt0-21swapper/210:28:372
71380rcu_preempt0-21swapper/210:28:372
71380rcu_preempt0-21swapper/207:24:412
71380rcu_preempt0-21swapper/207:24:412
71380rcu_preempt0-21swapper/110:28:271
71380rcu_preempt0-21swapper/110:28:271
71380rcu_preempt0-21swapper/110:28:271
46250380irq/120-QManpo0-2110:48:551
46250380irq/120-QManpo0-2110:48:551
46050380irq/122-QManpo386-2110:48:550
46050380irq/122-QManpo386-2110:48:550
71370rcu_preempt23447-21grep11:17:280
71370rcu_preempt23447-21grep11:17:280
71370rcu_preempt23447-21grep11:17:280
71370rcu_preempt16787-1kworker/2:2H12:07:302
71370rcu_preempt16787-1kworker/2:2H12:07:302
71370rcu_preempt0-21swapper/212:23:182
71370rcu_preempt0-21swapper/211:47:422
71370rcu_preempt0-21swapper/211:47:422
71370rcu_preempt0-21swapper/211:27:442
71370rcu_preempt0-21swapper/211:27:442
71370rcu_preempt0-21swapper/210:39:072
71370rcu_preempt0-21swapper/210:39:072
71370rcu_preempt0-21swapper/208:47:252
71370rcu_preempt0-21swapper/208:47:252
71370rcu_preempt0-21swapper/208:47:252
71370rcu_preempt0-21swapper/208:23:502
71370rcu_preempt0-21swapper/208:23:502
71370rcu_preempt0-21swapper/112:21:361
71370rcu_preempt0-21swapper/112:21:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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