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2026-03-21 - 04:29
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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 highest latencies:
System rackcslot3.osadl.org (updated Sat Mar 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960rcu_preempt17372-21ssh22:40:511
89850760irq/17-ehci_hcd21949-21ssh23:51:321
81720rcu_preempt0-21swapper/019:39:400
81710rcu_preempt4233-21sh22:15:391
81710rcu_preempt18343-21missed_timers23:44:450
81710rcu_preempt10498-1kworker/0:1H22:36:100
81710rcu_preempt0-21swapper/022:09:480
81690rcu_preempt3047-21diskmemload00:23:300
81690rcu_preempt30146-21ssh23:04:490
81690rcu_preempt18903-21ssh22:44:401
81690rcu_preempt0-21swapper/123:34:381
81690rcu_preempt0-21swapper/123:04:191
81690rcu_preempt0-21swapper/100:30:461
81680rcu_preempt26732-21sh00:00:021
81680rcu_preempt0-21swapper/123:43:341
81680rcu_preempt0-21swapper/022:08:120
81670rcu_preempt9576-21cron23:29:240
81670rcu_preempt7958-21ssh00:29:430
81670rcu_preempt21474-21rm21:48:311
81670rcu_preempt0-21swapper/120:51:141
81670rcu_preempt0-21swapper/120:21:221
81670rcu_preempt0-21swapper/100:22:001
81670rcu_preempt0-21swapper/100:10:441
81660rcu_preempt20382-21timerwakeupswit21:44:500
81660rcu_preempt20350-21apt-get20:14:361
81660rcu_preempt14042-21/usr/sbin/munin19:49:441
81660rcu_preempt11983-21sh23:33:180
81660rcu_preempt0-21swapper/123:44:401
81660rcu_preempt0-21swapper/122:24:071
81660rcu_preempt0-21swapper/120:29:481
81660rcu_preempt0-21swapper/022:50:460
147650660irq/28-eth0-rx-26581-21kworker/1:219:09:461
81650rcu_preempt25327-21munin-run23:59:241
81650rcu_preempt13419-21df_abs22:34:371
81650rcu_preempt0-21swapper/123:09:441
81650rcu_preempt0-21swapper/122:24:431
81640rcu_preempt8900-21cat19:29:241
81640rcu_preempt3775-21ssh23:17:071
81640rcu_preempt0-21swapper/121:59:451
81640rcu_preempt0-21swapper/121:21:161
81640rcu_preempt0-21swapper/100:44:021
81640rcu_preempt0-21swapper/021:40:510
81640rcu_preempt0-21swapper/020:08:250
81630rcu_preempt24519-21ssh21:54:240
81630rcu_preempt22004-21k10sensors22:49:481
81630rcu_preempt13910-21munin-run19:49:241
81630rcu_preempt0-21swapper/123:34:151
81630rcu_preempt0-21swapper/121:54:481
81630rcu_preempt0-21swapper/120:44:491
81630rcu_preempt0-21swapper/119:39:451
81630rcu_preempt0-21swapper/021:33:290
81630rcu_preempt0-21swapper/020:21:210
81630rcu_preempt0-21swapper/000:04:410
81620rcu_preempt30631-21munin-run00:09:241
81620rcu_preempt2485-21sh00:19:040
81620rcu_preempt10585-21sort00:34:451
81620rcu_preempt0-21swapper/123:24:481
81620rcu_preempt0-21swapper/121:30:201
81620rcu_preempt0-21swapper/121:28:081
81620rcu_preempt0-21swapper/023:57:270
81620rcu_preempt0-21swapper/022:29:470
81620rcu_preempt0-21swapper/022:28:070
81610rcu_preempt16715-21/usr/sbin/munin21:39:431
81610rcu_preempt15310-21ssh21:35:191
81610rcu_preempt0-21swapper/122:30:221
81610rcu_preempt0-21swapper/120:54:391
81610rcu_preempt0-21swapper/120:04:381
81610rcu_preempt0-21swapper/100:25:271
81610rcu_preempt0-21swapper/022:17:250
81610rcu_preempt0-21swapper/020:14:240
81600rcu_preempt0-21swapper/123:19:421
81600rcu_preempt0-21swapper/123:09:161
81600rcu_preempt0-21swapper/019:29:400
81600rcu_preempt0-21swapper/019:29:400
81590rcu_preempt4953-21ssh21:16:301
81590rcu_preempt2621-21ssh23:14:430
81590rcu_preempt1725-21ssh00:14:561
81590rcu_preempt11355-21ssh00:35:260
81590rcu_preempt10267-21cpu19:34:360
81590rcu_preempt0-21swapper/122:57:491
81590rcu_preempt0-21swapper/121:53:311
81590rcu_preempt0-21swapper/119:59:411
81590rcu_preempt0-21swapper/023:04:040
81590rcu_preempt0-21swapper/022:41:540
81590rcu_preempt0-21swapper/022:04:150
81590rcu_preempt0-21swapper/021:55:530
81590rcu_preempt0-21swapper/020:39:450
81580rcu_preempt8597-21ssh21:24:100
81580rcu_preempt25752-21ssh22:57:550
81580rcu_preempt22180-21ssh23:52:250
81580rcu_preempt1724-21munin-run23:14:240
81580rcu_preempt12852-21ssh23:34:420
81580rcu_preempt0-21swapper/122:09:481
81580rcu_preempt0-21swapper/120:10:541
81580rcu_preempt0-21swapper/119:19:441
81580rcu_preempt0-21swapper/022:44:390
81580rcu_preempt0-21swapper/021:34:470
81580rcu_preempt0-21swapper/021:11:090
81580rcu_preempt0-21swapper/020:19:190
81580rcu_preempt0-21swapper/019:24:470
81580rcu_preempt0-21swapper/000:42:430
81580rcu_preempt0-21swapper/000:24:470
81570rcu_preempt31417-21rm22:06:011
81570rcu_preempt29127-21latency_hist20:49:240
81570rcu_preempt10524-21fw_forwarded_lo19:34:401
81570rcu_preempt0-21swapper/121:04:491
81570rcu_preempt0-21swapper/120:59:491
81570rcu_preempt0-21swapper/120:59:491
81570rcu_preempt0-21swapper/120:26:091
81570rcu_preempt0-21swapper/020:52:080
81560rcu_preempt14623-21kworker/0:019:09:410
81560rcu_preempt0-21swapper/120:37:591
81560rcu_preempt0-21swapper/119:33:281
81560rcu_preempt0-21swapper/119:33:281
81560rcu_preempt0-21swapper/023:43:150
81560rcu_preempt0-21swapper/023:20:180
81560rcu_preempt0-21swapper/021:28:040
81560rcu_preempt0-21swapper/021:00:490
81560rcu_preempt0-21swapper/021:00:490
81560rcu_preempt0-21swapper/020:24:410
81560rcu_preempt0-21swapper/020:03:040
81550rcu_preempt7184-21ssh22:22:020
81550rcu_preempt5336-21ssh21:17:420
81550rcu_preempt0-21swapper/121:12:471
81550rcu_preempt0-21swapper/119:58:501
81550rcu_preempt0-21swapper/021:05:030
81550rcu_preempt0-21swapper/000:00:010
81540rcu_preempt0-21swapper/020:38:500
81540rcu_preempt0-21swapper/019:14:460
81530rcu_preempt0-21swapper/000:11:170
81520rcu_preempt0-21swapper/019:54:430
81520rcu_preempt0-21swapper/019:19:570
81510rcu_preempt0-21swapper/120:39:291
81490rcu_preempt0-21swapper/020:54:440
81490rcu_preempt0-21swapper/019:45:050
81480rcu_preempt0-21swapper/020:30:500
5070994239cyclictest945-21usb-storage19:14:451
81380rcu_preempt14312-21fw_conntrack19:49:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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