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2026-04-11 - 09:23
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sat Apr 11, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960rcu_preempt648-21ssh00:42:240
81830rcu_preempt0-21swapper/019:12:590
147650760irq/28-eth0-rx-0-21swapper/119:10:271
81730rcu_preempt19-21ksoftirqd/100:36:401
81730rcu_preempt13089-21ssh21:56:210
81720rcu_preempt0-21swapper/000:15:440
81710rcu_preempt0-21swapper/023:41:270
81710rcu_preempt0-21swapper/021:05:380
81710rcu_preempt0-21swapper/019:30:450
81710rcu_preempt0-21swapper/019:25:320
81710rcu_preempt0-21swapper/000:25:380
81700rcu_preempt0-21swapper/021:34:140
81670rcu_preempt15565-21munin-run23:05:200
81670rcu_preempt0-21swapper/000:02:100
81660rcu_preempt18940-21apt-get21:00:310
81660rcu_preempt0-21swapper/022:49:010
81660rcu_preempt0-21swapper/021:22:170
81660rcu_preempt0-21swapper/019:44:400
147950660irq/31-eth0-tx-21727-21ssh22:13:580
81650rcu_preempt9983-21munin-run20:25:200
81650rcu_preempt9242-21latency_hist23:55:210
81650rcu_preempt26572-21latency19:20:410
81640rcu_preempt28659-21rm00:34:570
81630rcu_preempt32716-21ssh23:36:501
81630rcu_preempt32716-21ssh23:36:501
81630rcu_preempt24984-21ssh00:26:251
81630rcu_preempt1250-21jbd2/sda3-822:05:200
81630rcu_preempt12131-21open_inodes20:30:430
81620rcu_preempt6191-21latency_hist20:10:210
81620rcu_preempt27066-21ssh22:24:480
81620rcu_preempt26915-21ssh21:21:221
81620rcu_preempt26193-21ssh22:21:251
81620rcu_preempt0-21swapper/120:45:331
81620rcu_preempt0-21swapper/020:25:360
81620rcu_preempt0-21swapper/019:55:380
147850620irq/30-eth0-tx-21525-21ssh23:15:410
81610rcu_preempt9746-21ssh22:53:121
81610rcu_preempt2779-21apt-esm-hook22:40:321
81610rcu_preempt20706-21munin-run23:15:200
81610rcu_preempt17467-21ssh23:07:561
81610rcu_preempt13763-21munin-run20:40:200
81610rcu_preempt0-21swapper/123:49:281
81610rcu_preempt0-21swapper/123:04:341
81610rcu_preempt0-21swapper/122:34:101
81610rcu_preempt0-21swapper/121:39:591
81610rcu_preempt0-21swapper/100:20:201
81610rcu_preempt0-21swapper/100:18:381
81610rcu_preempt0-21swapper/022:39:080
81600rcu_preempt32721-21ssh21:33:081
81600rcu_preempt25151-21ssh21:19:341
81600rcu_preempt18650-21ssh22:07:421
81600rcu_preempt18215-21ssh23:10:251
81600rcu_preempt0-21swapper/123:57:511
81600rcu_preempt0-21swapper/123:55:151
81600rcu_preempt0-21swapper/122:56:441
81600rcu_preempt0-21swapper/122:14:451
81600rcu_preempt0-21swapper/121:57:391
81600rcu_preempt0-21swapper/121:50:121
81600rcu_preempt0-21swapper/121:41:031
81600rcu_preempt0-21swapper/120:00:401
81600rcu_preempt0-21swapper/100:43:521
81600rcu_preempt0-21swapper/100:33:591
81600rcu_preempt0-21swapper/023:09:460
81600rcu_preempt0-21swapper/020:40:310
147950600irq/31-eth0-tx-32766-21ssh23:36:590
147950600irq/31-eth0-tx-32766-21ssh23:36:590
81590rcu_preempt27852-21ssh23:28:171
81590rcu_preempt25202-21ssh21:19:450
81590rcu_preempt22539-21ssh23:17:331
81590rcu_preempt11037-21ssh21:53:280
81590rcu_preempt0-21swapper/123:40:381
81590rcu_preempt0-21swapper/122:47:101
81590rcu_preempt0-21swapper/122:15:281
81590rcu_preempt0-21swapper/122:15:281
81590rcu_preempt0-21swapper/121:53:031
81590rcu_preempt0-21swapper/121:00:441
81590rcu_preempt0-21swapper/120:05:371
81590rcu_preempt0-21swapper/100:10:381
81590rcu_preempt0-21swapper/023:50:440
81590rcu_preempt0-21swapper/022:16:500
81590rcu_preempt0-21swapper/022:16:500
81590rcu_preempt0-21swapper/020:57:080
81580rcu_preempt8303-21ntpq20:15:421
81580rcu_preempt7877-21ssh21:46:310
81580rcu_preempt6480-21df_abs20:10:340
81580rcu_preempt28921-21ssh22:27:051
81580rcu_preempt2385-21ssh22:39:361
81580rcu_preempt16423-21ssh00:08:491
81580rcu_preempt1162-21ssh21:35:320
81580rcu_preempt0-21swapper/123:23:061
81580rcu_preempt0-21swapper/121:29:441
81580rcu_preempt0-21swapper/023:33:370
81580rcu_preempt0-21swapper/022:56:500
81580rcu_preempt0-21swapper/022:09:270
89850570irq/17-ehci_hcd945-21usb-storage20:37:101
81570rcu_preempt30083-21ssh23:31:581
81570rcu_preempt16092-21ssh00:07:370
81570rcu_preempt13810-21ssh00:04:021
81570rcu_preempt0-21swapper/120:50:371
81570rcu_preempt0-21swapper/119:30:371
81570rcu_preempt0-21swapper/119:16:101
81570rcu_preempt0-21swapper/023:47:080
81570rcu_preempt0-21swapper/023:23:210
81570rcu_preempt0-21swapper/021:29:390
81570rcu_preempt0-21swapper/020:15:450
81570rcu_preempt0-21swapper/000:38:370
81560rcu_preempt5500-21ssh21:42:040
81560rcu_preempt29596-21ssh22:29:220
81560rcu_preempt23438-21munin-run00:25:200
81560rcu_preempt22595-21diskmemload22:51:570
81560rcu_preempt0-21swapper/122:01:181
81560rcu_preempt0-21swapper/121:15:151
81560rcu_preempt0-21swapper/119:40:451
81560rcu_preempt0-21swapper/019:35:440
81550rcu_preempt28019-21ntp_states19:25:411
81550rcu_preempt0-21swapper/120:27:191
81550rcu_preempt0-21swapper/119:22:131
81550rcu_preempt0-21swapper/020:05:200
81540rcu_preempt4109-21ssh22:41:240
81540rcu_preempt2784-21diskstats19:55:351
81540rcu_preempt18689-21ssh00:12:290
81540rcu_preempt0-21swapper/120:40:551
81540rcu_preempt0-21swapper/120:21:351
81540rcu_preempt0-21swapper/023:29:030
81540rcu_preempt0-21swapper/019:50:440
81520rcu_preempt32579-21df_abs19:45:350
81520rcu_preempt31566-21ssh22:31:560
81520rcu_preempt0-21swapper/120:31:191
81520rcu_preempt0-21swapper/019:16:290
81510rcu_preempt32605-21fw_conntrack19:45:361
81510rcu_preempt0-21swapper/021:11:510
81510rcu_preempt0-21swapper/020:51:370
81500rcu_preempt20483-21fw_forwarded_lo21:05:361
81500rcu_preempt0-21swapper/120:10:451
24627994946cyclictest945-21usb-storage20:55:341
81480rcu_preempt1972-21ntpdc19:50:421
81450rcu_preempt15440-21fw_forwarded_lo20:45:370
81350rcu_preempt19-21ksoftirqd/119:35:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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