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2026-04-23 - 08:17
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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 Thu Apr 23, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt19-21ksoftirqd/121:22:391
81840rcu_preempt7434-21ssh22:36:411
81730rcu_preempt29165-21ntp_states22:16:160
81730rcu_preempt15324-21ssh21:50:550
147650720irq/28-eth0-rx-0-21swapper/119:12:231
81710rcu_preempt0-21swapper/021:36:500
81700rcu_preempt0-21swapper/122:41:071
81690rcu_preempt5629-21ssh00:36:210
81690rcu_preempt2983-21sh22:29:160
81690rcu_preempt26151-1kworker/0:0H00:41:490
81690rcu_preempt12969-21ssh22:47:570
81690rcu_preempt0-21swapper/122:46:481
81690rcu_preempt0-21swapper/119:51:111
81690rcu_preempt0-21swapper/023:21:230
81680rcu_preempt0-21swapper/123:36:191
81680rcu_preempt0-21swapper/100:31:281
81680rcu_preempt0-21swapper/000:31:290
81670rcu_preempt24318-21kworker/0:019:11:160
81670rcu_preempt0-21swapper/122:15:531
81670rcu_preempt0-21swapper/100:36:011
147650670irq/28-eth0-rx-181ktimersoftd/121:39:291
81660rcu_preempt30467-21ls23:21:191
81660rcu_preempt25602-21munin-run22:10:520
81660rcu_preempt21674-21df_abs00:06:091
81660rcu_preempt0-21swapper/123:35:521
81650rcu_preempt3042-21wc21:26:111
81650rcu_preempt0-21swapper/023:27:530
81640rcu_preempt29968-21ssh21:16:131
81640rcu_preempt19367-21ssh23:01:080
81640rcu_preempt0-21swapper/119:49:581
81640rcu_preempt0-21swapper/000:08:100
81630rcu_preempt5317-21ssh21:31:101
81630rcu_preempt22859-21munin-run20:50:520
81630rcu_preempt0-21swapper/100:41:191
81630rcu_preempt0-21swapper/100:01:151
81630rcu_preempt0-21swapper/021:01:120
81620rcu_preempt28910-21ssh23:19:461
81620rcu_preempt0-21swapper/123:28:271
81620rcu_preempt0-21swapper/100:28:251
81620rcu_preempt0-21swapper/021:56:160
81610rcu_preempt31536-21ssh21:19:410
81610rcu_preempt26555-21ssh23:15:511
81610rcu_preempt10155-21ssh23:45:361
81610rcu_preempt0-21swapper/122:54:401
81610rcu_preempt0-21swapper/122:31:181
81610rcu_preempt0-21swapper/122:22:261
81610rcu_preempt0-21swapper/122:14:281
81610rcu_preempt0-21swapper/120:01:101
81610rcu_preempt0-21swapper/000:15:350
81600rcu_preempt25908-21ssh00:13:431
81600rcu_preempt25350-21ssh22:10:051
81600rcu_preempt20300-21ssh22:00:121
81600rcu_preempt0-21swapper/121:52:371
81600rcu_preempt0-21swapper/023:17:440
81600rcu_preempt0-21swapper/022:53:330
81600rcu_preempt0-21swapper/022:41:250
81600rcu_preempt0-21swapper/021:08:280
81590rcu_preempt9690-21strings19:56:131
81590rcu_preempt2467-21ssh22:27:201
81590rcu_preempt23258-21ssh23:07:361
81590rcu_preempt14632-21ssh21:48:591
81590rcu_preempt14537-21if_wlan020:16:111
81590rcu_preempt0-21swapper/122:55:571
81590rcu_preempt0-21swapper/120:06:151
81590rcu_preempt0-21swapper/119:16:041
81590rcu_preempt0-21swapper/100:21:461
81590rcu_preempt0-21swapper/023:56:160
81590rcu_preempt0-21swapper/023:31:080
81590rcu_preempt0-21swapper/023:08:370
81590rcu_preempt0-21swapper/022:22:300
81590rcu_preempt0-21swapper/020:11:060
81590rcu_preempt0-21swapper/000:22:470
81590rcu_preempt0-21swapper/000:16:130
81580rcu_preempt29157-21diskmemload22:31:130
81580rcu_preempt29157-21diskmemload00:28:010
81580rcu_preempt14482-21ssh21:48:230
81580rcu_preempt0-21swapper/123:47:471
81580rcu_preempt0-21swapper/123:03:251
81580rcu_preempt0-21swapper/122:01:491
81580rcu_preempt0-21swapper/121:41:101
81580rcu_preempt0-21swapper/100:20:481
81580rcu_preempt0-21swapper/021:30:540
81580rcu_preempt0-21swapper/019:56:160
81580rcu_preempt0-21swapper/019:16:140
81570rcu_preempt5244-21/usr/sbin/munin19:41:161
81570rcu_preempt26140-21ssh23:14:110
81570rcu_preempt22598-21ssh22:04:270
81570rcu_preempt18406-21ssh22:59:100
81570rcu_preempt17559-21ssh23:57:401
81570rcu_preempt1434-21apt-get19:26:020
81570rcu_preempt0-21swapper/121:15:241
81570rcu_preempt0-21swapper/120:47:291
81570rcu_preempt0-21swapper/120:36:051
81570rcu_preempt0-21swapper/023:48:570
81570rcu_preempt0-21swapper/021:41:210
81570rcu_preempt0-21swapper/021:24:590
81570rcu_preempt0-21swapper/020:21:160
81570rcu_preempt0-21swapper/020:01:110
81570rcu_preempt0-21swapper/019:46:160
81570rcu_preempt0-21swapper/000:04:200
81560rcu_preempt0-21swapper/120:14:421
81560rcu_preempt0-21swapper/022:15:260
81560rcu_preempt0-21swapper/021:26:050
81560rcu_preempt0-21swapper/020:51:410
81560rcu_preempt0-21swapper/020:41:100
81560rcu_preempt0-21swapper/020:31:410
81550rcu_preempt7837-21ssh22:38:200
81550rcu_preempt24318-21kworker/0:023:55:480
81550rcu_preempt24318-21kworker/0:023:55:480
81550rcu_preempt23124-21df20:51:051
81550rcu_preempt0-21swapper/123:53:451
81550rcu_preempt0-21swapper/123:53:451
81550rcu_preempt0-21swapper/121:10:281
81550rcu_preempt0-21swapper/120:42:581
81550rcu_preempt0-21swapper/120:27:181
81550rcu_preempt0-21swapper/119:28:061
81550rcu_preempt0-21swapper/119:22:321
81550rcu_preempt0-21swapper/023:36:040
81540rcu_preempt9068-21ssh23:41:520
81540rcu_preempt8419-21sed19:51:130
81540rcu_preempt15615-21fw_forwarded_lo20:21:081
81540rcu_preempt0-21swapper/120:32:561
81530rcu_preempt0-21swapper/020:58:130
81530rcu_preempt0-21swapper/020:26:240
81520rcu_preempt0-21swapper/020:20:290
81520rcu_preempt0-21swapper/019:37:110
81520rcu_preempt0-21swapper/019:32:050
81510rcu_preempt0-21swapper/021:15:230
81510rcu_preempt0-21swapper/020:39:170
81480rcu_preempt353-21diskstats19:21:070
81480rcu_preempt25110-21mailstats20:56:151
31185994643cyclictest945-21usb-storage19:33:071
31185994542cyclictest945-21usb-storage21:01:161
81420rcu_preempt12144-21memory20:06:140
31185993835cyclictest945-21usb-storage19:38:081
89450340irq/17-ehci_hcd3-21ksoftirqd/019:45:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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