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2026-04-09 - 07:46
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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 09, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71630rcu_preempt0-21swapper/221:32:232
71630rcu_preempt0-21swapper/221:32:232
71570rcu_preempt0-21swapper/200:30:122
71570rcu_preempt0-21swapper/200:30:122
71530rcu_preempt0-21swapper/022:43:290
71530rcu_preempt0-21swapper/022:43:290
71530rcu_preempt0-21swapper/022:43:290
71520rcu_preempt1959-21runrttasks20:12:152
71520rcu_preempt1959-21runrttasks20:12:152
71520rcu_preempt0-21swapper/023:52:330
71520rcu_preempt0-21swapper/023:52:330
2774599511cyclictest1958-21snmpd20:42:373
2774599511cyclictest1958-21snmpd20:42:373
2774599511cyclictest1958-21snmpd20:42:373
71480rcu_preempt0-21swapper/023:39:010
71480rcu_preempt0-21swapper/023:39:010
46050480irq/122-QManpo26546-2110:48:550
46050480irq/122-QManpo26546-2110:48:550
2774599482cyclictest1959-21runrttasks19:17:173
71470rcu_preempt0-21swapper/323:23:453
71470rcu_preempt0-21swapper/323:23:453
71470rcu_preempt0-21swapper/323:23:453
71470rcu_preempt0-21swapper/000:33:180
71470rcu_preempt0-21swapper/000:33:180
2774599471cyclictest7088-21kworker/u8:121:52:413
2774599471cyclictest7088-21kworker/u8:121:52:413
2774599462cyclictest29157-21/usr/sbin/munin19:17:343
2774599462cyclictest29157-21/usr/sbin/munin19:17:343
2774599462cyclictest29157-21/usr/sbin/munin19:17:343
2774599462cyclictest10406-21/usr/sbin/munin21:37:403
2774599462cyclictest10406-21/usr/sbin/munin21:37:403
2774599462cyclictest10406-21/usr/sbin/munin21:37:403
2774599453cyclictest0-21swapper/300:05:123
2774599453cyclictest0-21swapper/300:05:123
2774599453cyclictest0-21swapper/300:05:123
2774599452cyclictest3722-21/usr/sbin/munin19:42:413
2774599452cyclictest3722-21/usr/sbin/munin19:42:413
2774599452cyclictest28745-21/usr/sbin/munin21:12:413
2774599452cyclictest28745-21/usr/sbin/munin21:12:413
2774599452cyclictest25195-21/usr/sbin/munin23:02:453
2774599452cyclictest25195-21/usr/sbin/munin23:02:453
2774599452cyclictest17604-21apt-get20:32:223
2774599452cyclictest17604-21apt-get20:32:223
2774599452cyclictest1120-21tail22:17:403
2774599452cyclictest1120-21tail22:17:403
2774599452cyclictest1120-21tail22:17:403
2774599451cyclictest26045-21latency_hist00:02:153
2774599451cyclictest26045-21latency_hist00:02:153
2774599451cyclictest26045-21latency_hist00:02:153
2774599444cyclictest28142-1kworker/3:1H23:27:253
2774599444cyclictest28142-1kworker/3:1H23:27:253
2774599444cyclictest28142-1kworker/3:1H23:27:253
2774599444cyclictest0-21swapper/323:32:273
2774599444cyclictest0-21swapper/323:32:273
2774599444cyclictest0-21swapper/322:07:363
2774599444cyclictest0-21swapper/322:07:363
2774599444cyclictest0-21swapper/320:52:303
2774599444cyclictest0-21swapper/320:52:303
2774599443cyclictest0-21swapper/320:17:363
2774599443cyclictest0-21swapper/320:17:363
2774599443cyclictest0-21swapper/320:07:353
2774599443cyclictest0-21swapper/320:07:353
2774599442cyclictest3603-21ssh23:21:483
2774599442cyclictest3603-21ssh23:21:483
71430rcu_preempt0-21swapper/323:07:323
71430rcu_preempt0-21swapper/323:07:323
2774599434cyclictest0-21swapper/323:53:143
2774599434cyclictest0-21swapper/323:53:143
2774599434cyclictest0-21swapper/322:59:323
2774599434cyclictest0-21swapper/322:59:323
2774599434cyclictest0-21swapper/321:47:273
2774599434cyclictest0-21swapper/321:47:273
2774599434cyclictest0-21swapper/321:02:313
2774599434cyclictest0-21swapper/321:02:313
2774599433cyclictest6088-21diskstats22:27:313
2774599433cyclictest6088-21diskstats22:27:313
2774599433cyclictest0-21swapper/323:37:323
2774599433cyclictest0-21swapper/323:37:323
2774599433cyclictest0-21swapper/323:12:223
2774599433cyclictest0-21swapper/323:12:223
2774599433cyclictest0-21swapper/323:12:223
2774599433cyclictest0-21swapper/322:47:323
2774599433cyclictest0-21swapper/322:47:323
2774599433cyclictest0-21swapper/322:47:323
2774599433cyclictest0-21swapper/322:02:243
2774599433cyclictest0-21swapper/322:02:243
2774599433cyclictest0-21swapper/322:02:243
2774599433cyclictest0-21swapper/322:02:243
2774599433cyclictest0-21swapper/300:22:383
2774599433cyclictest0-21swapper/300:22:383
2774599432cyclictest8991-21meminfo22:32:353
2774599432cyclictest8991-21meminfo22:32:353
2774599432cyclictest27546-21df_inode21:07:263
2774599432cyclictest27546-21df_inode21:07:263
2774599432cyclictest17250-21ssh23:46:093
2774599432cyclictest17250-21ssh23:46:093
2774599432cyclictest17250-21ssh23:46:093
27745994322cyclictest0-21swapper/321:32:143
27745994322cyclictest0-21swapper/321:32:143
2774599431cyclictest14837-21apt-get20:22:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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