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2026-04-02 - 07:22
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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 00:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71640rcu_preempt27950-1kworker/0:1H22:07:150
71640rcu_preempt27950-1kworker/0:1H22:07:150
71640rcu_preempt27950-1kworker/0:1H22:07:150
71590rcu_preempt0-21swapper/300:22:153
71590rcu_preempt0-21swapper/300:22:153
71590rcu_preempt0-21swapper/300:22:153
71540rcu_preempt0-21swapper/322:22:293
71540rcu_preempt0-21swapper/322:22:293
71540rcu_preempt0-21swapper/322:22:293
71500rcu_preempt0-21swapper/323:12:133
3128699483cyclictest0-21swapper/223:27:402
3128699483cyclictest0-21swapper/223:27:402
3128699446cyclictest30142-21runrttasks23:02:462
3128699446cyclictest30142-21runrttasks23:02:462
3128699446cyclictest30142-21runrttasks23:02:462
3128699443cyclictest7776-21ntp_states19:42:292
3128699443cyclictest7776-21ntp_states19:42:292
3128699441cyclictest19529-21apt-get21:47:162
3128699441cyclictest19529-21apt-get21:47:162
71430rcu_preempt0-21swapper/200:21:352
71430rcu_preempt0-21swapper/200:21:352
71430rcu_preempt0-21swapper/200:21:352
3128699433cyclictest8813-21meminfo21:27:272
3128699433cyclictest8813-21meminfo21:27:272
3128699433cyclictest8813-21meminfo21:27:272
3128699433cyclictest32247-21memory23:07:302
3128699433cyclictest32247-21memory23:07:302
3128699433cyclictest32247-21memory23:07:302
3128699433cyclictest17193-21diskstats20:17:202
3128699433cyclictest17193-21diskstats20:17:202
3128699433cyclictest17193-21diskstats20:17:202
3128699432cyclictest29994-21ntp_states21:02:302
3128699432cyclictest29994-21ntp_states21:02:302
3128699432cyclictest1959-21runrttasks23:32:272
3128699432cyclictest1959-21runrttasks23:32:272
3128699431cyclictest16876-21apt-get21:42:162
3128699431cyclictest16876-21apt-get21:42:162
3128699431cyclictest16876-21apt-get21:42:162
3128699424cyclictest0-21swapper/221:52:252
3128699424cyclictest0-21swapper/221:52:252
3128699424cyclictest0-21swapper/200:42:072
3128699424cyclictest0-21swapper/200:42:072
3128699424cyclictest0-21swapper/200:08:202
3128699424cyclictest0-21swapper/200:08:202
3128699423cyclictest0-21swapper/220:47:262
3128699423cyclictest0-21swapper/220:47:262
3128699422cyclictest9244-21diskstats00:22:242
3128699422cyclictest9244-21diskstats00:22:242
3128699422cyclictest9244-21diskstats00:22:242
3128699422cyclictest24080-21df20:42:192
3128699422cyclictest24080-21df20:42:192
3128699422cyclictest24080-21df20:42:192
3128699422cyclictest19623-21ntp_states23:42:292
3128699422cyclictest19623-21ntp_states23:42:292
3128699422cyclictest1959-21runrttasks22:14:112
3128699422cyclictest1959-21runrttasks22:14:112
3128699422cyclictest19223-21users20:22:342
3128699422cyclictest19223-21users20:22:342
3128699422cyclictest19223-21users20:22:342
3128699421cyclictest21957-21df_inode23:47:192
3128699421cyclictest21957-21df_inode23:47:192
1599420migration/09018-21runrttasks23:23:040
1599420migration/09018-21runrttasks23:23:040
1599420migration/09018-21runrttasks23:23:040
46050410irq/122-QManpo0-210
46050410irq/122-QManpo0-210
3128699418cyclictest8115-21ssh22:23:402
3128699418cyclictest8115-21ssh22:23:402
3128699418cyclictest8115-21ssh22:23:402
3128699416cyclictest0-21swapper/222:31:082
3128699416cyclictest0-21swapper/222:31:082
3128699414cyclictest0-21swapper/221:32:292
3128699414cyclictest0-21swapper/221:32:292
3128699413cyclictest0-21swapper/222:53:292
3128699413cyclictest0-21swapper/222:53:292
3128699413cyclictest0-21swapper/222:53:292
3128699413cyclictest0-21swapper/222:32:182
3128699413cyclictest0-21swapper/222:32:182
3128699413cyclictest0-21swapper/222:32:182
3128699413cyclictest0-21swapper/221:37:252
3128699413cyclictest0-21swapper/221:37:252
3128699412cyclictest3298-21grep00:12:152
3128699412cyclictest3298-21grep00:12:152
3128699412cyclictest30195-21/usr/sbin/munin00:02:252
3128699412cyclictest30195-21/usr/sbin/munin00:02:252
3128699412cyclictest0-21swapper/219:37:252
3128699412cyclictest0-21swapper/219:37:252
3128699411cyclictest13636-21ssh00:30:352
3128699411cyclictest13636-21ssh00:30:352
99750400irq/38-i2c-mpc24547-21ssh21:56:000
99750400irq/38-i2c-mpc24547-21ssh21:56:000
46050400irq/122-QManpo31512-2110:48:550
46050400irq/122-QManpo31512-2110:48:550
3128699406cyclictest7961-21aten_r4power_en23:22:172
3128699406cyclictest7961-21aten_r4power_en23:22:172
3128699406cyclictest7961-21aten_r4power_en23:22:172
3128699403cyclictest0-21swapper/223:59:252
3128699403cyclictest0-21swapper/223:59:252
3128699403cyclictest0-21swapper/223:59:252
3128699403cyclictest0-21swapper/222:03:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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