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2026-06-19 - 08:28
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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 Fri Jun 19, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811250rcu_preempt19-21ksoftirqd/121:29:311
81890rcu_preempt8343-21/usr/sbin/munin22:24:381
81780rcu_preempt4349-21sshd19:11:231
81780rcu_preempt4349-21sshd19:11:231
81780rcu_preempt28436-21cron20:49:151
81780rcu_preempt2378-21diskmemload00:18:131
81770rcu_preempt19-21ksoftirqd/122:10:001
81740rcu_preempt2378-21diskmemload22:03:440
81730rcu_preempt21723-21ssh21:49:151
81730rcu_preempt19-21ksoftirqd/122:18:091
81720rcu_preempt32221-21diskmemload22:08:221
81720rcu_preempt27720-21strings22:59:371
81720rcu_preempt0-21swapper/121:29:151
81720rcu_preempt0-21swapper/119:29:331
81710rcu_preempt19-21ksoftirqd/123:10:451
81710rcu_preempt11139-21ssh23:29:351
81710rcu_preempt0-21swapper/121:19:291
81700rcu_preempt7711-21sh21:23:080
81700rcu_preempt0-21swapper/123:29:101
81700rcu_preempt0-21swapper/120:24:281
81700rcu_preempt0-21swapper/021:34:320
81690rcu_preempt0-21swapper/121:58:191
81690rcu_preempt0-21swapper/121:50:111
81690rcu_preempt0-21swapper/121:41:571
81690rcu_preempt0-21swapper/023:43:090
81690rcu_preempt0-21swapper/023:23:300
81690rcu_preempt0-21swapper/021:18:410
81690rcu_preempt0-21swapper/000:35:530
81680rcu_preempt22383-21sed23:49:431
81680rcu_preempt19-21ksoftirqd/123:48:561
81680rcu_preempt0-21swapper/121:09:351
81680rcu_preempt0-21swapper/100:24:401
81670rcu_preempt15933-21ssh22:38:460
81670rcu_preempt12257-21tr19:44:281
81670rcu_preempt0-21swapper/100:07:391
81670rcu_preempt0-21swapper/022:04:470
81660rcu_preempt5031-21idleruntime-cro23:19:151
81660rcu_preempt26528-21apt-get23:59:281
81660rcu_preempt2537-21ssh21:14:211
81660rcu_preempt25325-21ssh23:55:431
81660rcu_preempt19-21ksoftirqd/100:36:211
81660rcu_preempt0-21swapper/122:54:421
81660rcu_preempt0-21swapper/119:15:521
81660rcu_preempt0-21swapper/022:28:380
81650rcu_preempt18908-21latency_hist22:44:151
81650rcu_preempt15136-21ssh21:35:301
81650rcu_preempt15062-21ssh22:35:491
81650rcu_preempt15009-21ssh23:36:511
81650rcu_preempt12376-21ssh22:30:320
81650rcu_preempt10139-21sh00:30:150
81650rcu_preempt0-21swapper/123:43:111
81650rcu_preempt0-21swapper/100:23:111
81640rcu_preempt25914-21munin-run20:39:151
81640rcu_preempt0-21swapper/122:49:541
81640rcu_preempt0-21swapper/122:03:211
81640rcu_preempt0-21swapper/120:54:341
81640rcu_preempt0-21swapper/120:19:391
81640rcu_preempt0-21swapper/119:54:381
81640rcu_preempt0-21swapper/119:22:591
81630rcu_preempt21137-21ssh22:47:581
81630rcu_preempt15594-21ssh00:40:221
81630rcu_preempt0-21swapper/123:22:341
81630rcu_preempt0-21swapper/123:06:421
81630rcu_preempt0-21swapper/121:04:401
81630rcu_preempt0-21swapper/120:29:321
81630rcu_preempt0-21swapper/120:04:591
81630rcu_preempt0-21swapper/119:59:151
81630rcu_preempt0-21swapper/119:24:241
81630rcu_preempt0-21swapper/100:09:421
81630rcu_preempt0-21swapper/023:29:260
81630rcu_preempt0-21swapper/021:55:430
81630rcu_preempt0-21swapper/019:39:420
81620rcu_preempt0-21swapper/122:29:251
81620rcu_preempt0-21swapper/122:19:341
81620rcu_preempt0-21swapper/121:00:041
81620rcu_preempt0-21swapper/120:49:301
81620rcu_preempt0-21swapper/100:31:151
81620rcu_preempt0-21swapper/020:49:420
81620rcu_preempt0-21swapper/000:21:550
81610rcu_preempt0-21swapper/120:42:491
81610rcu_preempt0-21swapper/020:24:300
4402996148cyclictest41ktimersoftd/000:08:020
81600rcu_preempt6823-21sh22:20:050
81600rcu_preempt0-21swapper/120:12:541
81600rcu_preempt0-21swapper/022:43:400
81590rcu_preempt15811-21ssh00:41:080
81590rcu_preempt13859-21irqstats19:49:331
81590rcu_preempt0-21swapper/023:37:050
81590rcu_preempt0-21swapper/023:28:250
81590rcu_preempt0-21swapper/000:26:400
81580rcu_preempt0-21swapper/021:50:050
81580rcu_preempt0-21swapper/021:41:400
81570rcu_preempt31762-21ssh23:08:030
81570rcu_preempt25906-21ssh23:57:500
81570rcu_preempt21654-21ssh21:49:070
81570rcu_preempt12382-21ssh21:30:360
81570rcu_preempt0-21swapper/023:45:440
81570rcu_preempt0-21swapper/023:11:460
81570rcu_preempt0-21swapper/023:02:030
81570rcu_preempt0-21swapper/022:17:450
81570rcu_preempt0-21swapper/020:14:310
81570rcu_preempt0-21swapper/019:45:570
81570rcu_preempt0-21swapper/019:10:150
81570rcu_preempt0-21swapper/019:10:150
81570rcu_preempt0-21swapper/000:12:440
81570rcu_preempt0-21swapper/000:04:120
81560rcu_preempt2583-21ssh23:14:180
81560rcu_preempt11966-21latency_hist19:44:151
81560rcu_preempt0-21swapper/022:46:440
81560rcu_preempt0-21swapper/019:34:240
81550rcu_preempt2137-21ssh22:12:000
81550rcu_preempt0-21swapper/022:50:180
81550rcu_preempt0-21swapper/021:24:470
81550rcu_preempt0-21swapper/020:12:300
81550rcu_preempt0-21swapper/019:49:350
81540rcu_preempt25732-21ssh22:55:330
81540rcu_preempt0-21swapper/021:04:310
81540rcu_preempt0-21swapper/021:02:450
81540rcu_preempt0-21swapper/020:04:410
81530rcu_preempt2192-21snmpd00:16:540
81530rcu_preempt0-21swapper/021:09:510
81530rcu_preempt0-21swapper/019:28:220
81520rcu_preempt0-21swapper/023:49:400
81520rcu_preempt0-21swapper/020:41:210
81520rcu_preempt0-21swapper/020:33:180
81510rcu_preempt8582-21diskstats19:29:290
81510rcu_preempt0-21swapper/020:22:300
81510rcu_preempt0-21swapper/019:23:210
4403995148cyclictest945-21usb-storage19:36:331
81500rcu_preempt0-21swapper/019:59:300
81490rcu_preempt19-21ksoftirqd/120:14:381
81490rcu_preempt0-21swapper/020:35:530
4402994744cyclictest945-21usb-storage20:48:310
81460rcu_preempt30080-21df_inode20:54:300
81450rcu_preempt4672-21df19:14:280
81450rcu_preempt14898-21fw_conntrack19:54:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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