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2026-06-02 - 22:09
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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 Tue Jun 02, 2026 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110862630chrt46050irq/122-QMan10:48:550
110862630chrt46050irq/122-QMan10:48:550
110862630chrt46050irq/122-QMan10:48:550
71510rcu_preempt0-21swapper/307:18:203
71510rcu_preempt0-21swapper/307:18:203
71500rcu_preempt0-21swapper/309:56:153
71500rcu_preempt0-21swapper/309:56:153
71500rcu_preempt0-21swapper/309:56:153
2818699492cyclictest4533-21sshd12:34:372
2818699492cyclictest4533-21sshd12:34:372
2818699482cyclictest1959-21runrttasks09:49:532
2818699482cyclictest1959-21runrttasks09:49:532
2818699482cyclictest1959-21runrttasks09:49:532
2818699482cyclictest1959-21runrttasks09:49:532
2818699481cyclictest20704-21sendmail-msp08:51:592
2818699481cyclictest20704-21sendmail-msp08:51:592
2818699481cyclictest20704-21sendmail-msp08:51:592
2818699471cyclictest32334-21sendmail-msp10:24:422
2818699471cyclictest32334-21sendmail-msp10:24:422
2818699471cyclictest32334-21sendmail-msp10:24:422
71460rcu_preempt1590-21runrttasks10:25:243
71460rcu_preempt1590-21runrttasks10:25:243
71460rcu_preempt1590-21runrttasks10:25:243
71460rcu_preempt0-21swapper/112:23:291
71460rcu_preempt0-21swapper/112:23:291
71460rcu_preempt0-21swapper/112:23:291
71460rcu_preempt0-21swapper/009:41:320
71460rcu_preempt0-21swapper/009:41:320
71460rcu_preempt0-21swapper/009:41:320
71460rcu_preempt0-21swapper/009:41:320
46050460irq/122-QManpo28046-2110:48:550
46050460irq/122-QManpo28046-2110:48:550
46050460irq/122-QManpo28046-2110:48:550
28188994517cyclictest0-21swapper/312:20:093
28188994517cyclictest0-21swapper/312:20:093
28188994517cyclictest0-21swapper/312:20:093
28188994515cyclictest1985-21sendmail-msp09:48:493
28188994515cyclictest1985-21sendmail-msp09:48:493
28188994515cyclictest1985-21sendmail-msp09:48:493
28188994515cyclictest1985-21sendmail-msp09:48:493
2818699452cyclictest9742-21apt-get11:43:232
2818699452cyclictest9742-21apt-get11:43:232
2818699452cyclictest30620-21/usr/sbin/munin12:23:232
2818699452cyclictest30620-21/usr/sbin/munin12:23:232
2818699452cyclictest30620-21/usr/sbin/munin12:23:232
28188994413cyclictest0-21swapper/310:14:593
28188994413cyclictest0-21swapper/310:14:593
2818699443cyclictest4662-21ntp_states07:43:362
2818699443cyclictest4662-21ntp_states07:43:362
2818699443cyclictest17659-21irqstats11:58:322
2818699443cyclictest17659-21irqstats11:58:322
2818699442cyclictest5800-21ntp_states10:33:362
2818699442cyclictest5800-21ntp_states10:33:362
2818699442cyclictest5800-21ntp_states10:33:362
2818699442cyclictest17404-21ntp_states09:53:392
2818699442cyclictest17404-21ntp_states09:53:392
2818699442cyclictest17404-21ntp_states09:53:392
2818699441cyclictest16903-21df_inode08:28:272
2818699441cyclictest16903-21df_inode08:28:272
2818699441cyclictest16903-21df_inode08:28:272
28188994333cyclictest22400-21apt-get12:08:223
28188994333cyclictest22400-21apt-get12:08:223
28188994318cyclictest31389-21/usr/sbin/munin11:23:383
28188994318cyclictest31389-21/usr/sbin/munin11:23:383
28188994318cyclictest31389-21/usr/sbin/munin11:23:383
28188994313cyclictest0-21swapper/309:26:133
28188994313cyclictest0-21swapper/309:26:133
2818699432cyclictest21026-21sendmail-msp11:13:352
2818699432cyclictest21026-21sendmail-msp11:13:352
2818699432cyclictest21026-21sendmail-msp11:13:352
71420rcu_preempt0-21swapper/011:53:360
71420rcu_preempt0-21swapper/011:53:360
71420rcu_preempt0-21swapper/011:53:360
71420rcu_preempt0-21swapper/011:36:450
71420rcu_preempt0-21swapper/011:36:450
71420rcu_preempt0-21swapper/011:08:120
71420rcu_preempt0-21swapper/011:08:120
71420rcu_preempt0-21swapper/011:08:120
28188994212cyclictest0-21swapper/309:32:023
28188994212cyclictest0-21swapper/309:32:023
28188994212cyclictest0-21swapper/309:32:023
2818699424cyclictest0-21swapper/210:43:262
2818699424cyclictest0-21swapper/210:43:262
2818699424cyclictest0-21swapper/210:43:262
2818699424cyclictest0-21swapper/210:08:242
2818699424cyclictest0-21swapper/210:08:242
2818699423cyclictest14962-21df11:53:252
2818699423cyclictest14962-21df11:53:252
2818699423cyclictest14962-21df11:53:252
2818699423cyclictest0-21swapper/208:03:422
2818699423cyclictest0-21swapper/208:03:422
2818699423cyclictest0-21swapper/208:03:422
2818699422cyclictest6777-21users12:38:432
2818699422cyclictest6777-21users12:38:432
2818699422cyclictest23864-21df_inode08:53:272
2818699422cyclictest23864-21df_inode08:53:272
2818699422cyclictest1878-21ntp_states07:33:352
2818699422cyclictest1878-21ntp_states07:33:352
2818699421cyclictest28833-21find07:13:402
2818699421cyclictest28833-21find07:13:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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