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2026-03-08 - 02:41
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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 Sun Mar 08, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71620rcu_preempt0-21swapper/023:49:060
71620rcu_preempt0-21swapper/023:49:060
6254995014cyclictest31512-21sshd22:51:471
6254995014cyclictest31512-21sshd22:51:471
71470rcu_preempt0-21swapper/323:21:483
71470rcu_preempt0-21swapper/323:21:483
625499473cyclictest3896-21diskstats23:56:541
625499473cyclictest3896-21diskstats23:56:541
625499473cyclictest3896-21diskstats23:56:541
71460rcu_preempt0-21swapper/020:41:470
71460rcu_preempt0-21swapper/020:41:470
625699453cyclictest0-21swapper/321:57:553
625699453cyclictest0-21swapper/321:57:553
6256994522cyclictest14727-21ssh21:24:033
6256994522cyclictest14727-21ssh21:24:033
6256994522cyclictest14727-21ssh21:24:033
625499452cyclictest959-21diskstats23:51:541
625499452cyclictest959-21diskstats23:51:541
625499452cyclictest31625-21irqstats20:41:571
625499452cyclictest31625-21irqstats20:41:571
71440rcu_preempt25808-1kworker/0:0H22:51:420
71440rcu_preempt25808-1kworker/0:0H22:51:420
6254994421cyclictest26695-21sh21:46:031
6254994421cyclictest26695-21sh21:46:031
625499441cyclictest9349-21ssh23:09:161
625499441cyclictest9349-21ssh23:09:161
625499441cyclictest22979-21apt-get20:11:501
625499441cyclictest22979-21apt-get20:11:501
625699434cyclictest0-21swapper/323:11:533
625699434cyclictest0-21swapper/323:11:533
625699434cyclictest0-21swapper/323:11:533
625699434cyclictest0-21swapper/321:51:513
625699434cyclictest0-21swapper/321:51:513
625699432cyclictest26914-21users22:42:083
625699432cyclictest26914-21users22:42:083
625699432cyclictest26621-21users20:22:083
625699432cyclictest26621-21users20:22:083
625699432cyclictest26621-21users20:22:083
625699432cyclictest23645-21diskstats00:31:543
625699432cyclictest23645-21diskstats00:31:543
6256994316cyclictest12732-21ssh22:17:073
6256994316cyclictest12732-21ssh22:17:073
625499432cyclictest6201-21df22:06:511
625499432cyclictest6201-21df22:06:511
625499432cyclictest6201-21df22:06:511
71420rcu_preempt28923-21diskstats22:46:550
71420rcu_preempt0-21swapper/123:21:491
71420rcu_preempt0-21swapper/123:21:491
625699424cyclictest0-21swapper/319:21:593
625699424cyclictest0-21swapper/319:21:593
625699424cyclictest0-21swapper/300:02:333
625699424cyclictest0-21swapper/300:02:333
625699424cyclictest0-21swapper/300:02:333
625699422cyclictest4791-21irqstats21:01:583
625699422cyclictest4791-21irqstats21:01:583
625699422cyclictest22489-21users21:37:063
625699422cyclictest22489-21users21:37:063
625699422cyclictest22489-21users21:37:063
625699422cyclictest16254-21memory21:26:583
625699422cyclictest16254-21memory21:26:583
625499423cyclictest0-21swapper/121:23:371
625499423cyclictest0-21swapper/121:23:371
625499423cyclictest0-21swapper/121:23:371
625499423cyclictest0-21swapper/121:06:531
625499423cyclictest0-21swapper/121:06:531
625499422cyclictest27387-21munin-run23:41:381
625499422cyclictest27387-21munin-run23:41:381
625499422cyclictest2253-21diskstats22:56:531
625499422cyclictest2253-21diskstats22:56:531
625499422cyclictest2253-21diskstats22:56:531
625499422cyclictest14480-21apt22:21:381
625499422cyclictest14480-21apt22:21:381
625499421cyclictest6848-21cat00:01:591
625499421cyclictest6848-21cat00:01:591
625499421cyclictest6848-21cat00:01:591
625499421cyclictest14642-21apt-get22:21:481
625499421cyclictest14642-21apt-get22:21:481
71410rcu_preempt4878-21apt-get23:01:490
71410rcu_preempt4878-21apt-get23:01:490
71410rcu_preempt29240-21kworker/0:322:51:490
71410rcu_preempt29240-21kworker/0:322:51:490
71410rcu_preempt17055-21unixbench_multi23:22:070
71410rcu_preempt17055-21unixbench_multi23:22:070
625699414cyclictest0-21swapper/322:33:103
625699414cyclictest0-21swapper/322:33:103
625699414cyclictest0-21swapper/322:33:103
625699414cyclictest0-21swapper/300:19:483
625699414cyclictest0-21swapper/300:19:483
625699414cyclictest0-21swapper/300:19:483
625699413cyclictest0-21swapper/323:56:163
625699413cyclictest0-21swapper/323:56:163
625699413cyclictest0-21swapper/323:45:423
625699413cyclictest0-21swapper/323:45:423
625699413cyclictest0-21swapper/322:11:493
625699413cyclictest0-21swapper/322:11:493
625699412cyclictest20068-21munin-run20:01:373
625699412cyclictest20068-21munin-run20:01:373
625699412cyclictest20068-21munin-run20:01:373
6256994116cyclictest14910-21diskstats19:41:533
6256994116cyclictest14910-21diskstats19:41:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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