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2026-04-30 - 14:58
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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 Thu Apr 30, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt12795-21/usr/sbin/munin21:50:221
81730rcu_preempt31328-21apt-get22:30:151
81730rcu_preempt21444-21missed_timers19:05:210
81710rcu_preempt5999-21sh21:40:040
81710rcu_preempt3149-21sh22:38:550
81710rcu_preempt19-21ksoftirqd/123:06:321
81700rcu_preempt23008-21ssh23:20:131
81690rcu_preempt19-21ksoftirqd/121:57:251
89950680irq/17-ehci_hcd945-21usb-storage22:17:160
81680rcu_preempt3021-1kworker/0:2H21:15:040
81680rcu_preempt0-21swapper/023:59:100
81680rcu_preempt0-21swapper/023:00:190
81670rcu_preempt25687-21munin-run23:25:020
81670rcu_preempt21598-21munin-run22:10:010
81660rcu_preempt16796-21munin-run22:00:020
81650rcu_preempt0-21swapper/022:33:130
81650rcu_preempt0-21swapper/021:30:360
81640rcu_preempt3021-1kworker/0:2H23:36:310
81640rcu_preempt11124-21ssh21:47:400
81640rcu_preempt0-21swapper/023:26:570
81630rcu_preempt14473-21ssh00:10:210
81630rcu_preempt0-21swapper/023:47:020
81620rcu_preempt22244-21ssh22:10:190
81620rcu_preempt18136-21fw_conntrack00:20:180
81620rcu_preempt0-21swapper/023:08:010
81620rcu_preempt0-21swapper/021:37:050
81620rcu_preempt0-21swapper/021:25:250
81620rcu_preempt0-21swapper/019:30:130
81620rcu_preempt0-21swapper/000:32:190
81620rcu_preempt0-21swapper/000:32:190
81610rcu_preempt30481-21munin-run23:35:020
81610rcu_preempt0-21swapper/120:07:381
81610rcu_preempt0-21swapper/019:45:250
81610rcu_preempt0-21swapper/019:25:150
81600rcu_preempt13681-21munin-run20:45:010
81600rcu_preempt0-21swapper/119:20:221
81600rcu_preempt0-21swapper/119:05:401
81600rcu_preempt0-21swapper/023:19:080
81600rcu_preempt0-21swapper/020:30:250
81600rcu_preempt0-21swapper/000:04:460
81590rcu_preempt31032-21ssh21:26:491
81590rcu_preempt0-21swapper/123:32:071
81590rcu_preempt0-21swapper/122:55:481
81590rcu_preempt0-21swapper/122:39:431
81590rcu_preempt0-21swapper/121:45:191
81590rcu_preempt0-21swapper/120:57:371
81590rcu_preempt0-21swapper/120:03:421
81590rcu_preempt0-21swapper/119:40:251
81580rcu_preempt7336-21sshd20:17:091
81580rcu_preempt24950-21ssh00:34:021
81580rcu_preempt24950-21ssh00:34:021
81580rcu_preempt17518-21ssh00:19:441
81580rcu_preempt0-21swapper/123:59:381
81580rcu_preempt0-21swapper/123:01:531
81580rcu_preempt0-21swapper/122:29:131
81580rcu_preempt0-21swapper/122:23:451
81580rcu_preempt0-21swapper/122:17:271
81580rcu_preempt0-21swapper/121:17:291
81580rcu_preempt0-21swapper/120:10:251
81580rcu_preempt0-21swapper/100:38:251
81580rcu_preempt0-21swapper/100:21:021
81580rcu_preempt0-21swapper/100:06:171
81580rcu_preempt0-21swapper/100:02:061
81580rcu_preempt0-21swapper/023:10:020
81580rcu_preempt0-21swapper/022:49:060
81570rcu_preempt6255-21ssh22:44:181
81570rcu_preempt6254-21ssh23:51:031
81570rcu_preempt5132-21df_abs20:10:170
81570rcu_preempt4711-21ssh21:36:361
81570rcu_preempt4152-21ssh23:48:261
81570rcu_preempt26605-21ssh00:38:250
81570rcu_preempt21640-21ssh23:16:551
81570rcu_preempt0-21swapper/123:43:161
81570rcu_preempt0-21swapper/123:27:041
81570rcu_preempt0-21swapper/123:11:401
81570rcu_preempt0-21swapper/122:48:531
81570rcu_preempt0-21swapper/122:01:231
81570rcu_preempt0-21swapper/121:12:311
81570rcu_preempt0-21swapper/121:02:381
81570rcu_preempt0-21swapper/120:37:521
81570rcu_preempt0-21swapper/119:15:241
81570rcu_preempt0-21swapper/100:28:251
81570rcu_preempt0-21swapper/023:54:370
81570rcu_preempt0-21swapper/022:43:170
81570rcu_preempt0-21swapper/021:20:310
81570rcu_preempt0-21swapper/021:00:020
81570rcu_preempt0-21swapper/000:05:140
81560rcu_preempt7963-21ssh21:42:311
81560rcu_preempt373-21if_err_eth023:40:200
81560rcu_preempt28219-21ssh21:22:131
81560rcu_preempt18220-21ssh22:00:350
81560rcu_preempt15841-21ssh00:14:141
81560rcu_preempt12406-21munin-run20:40:010
81560rcu_preempt0-21swapper/122:52:331
81560rcu_preempt0-21swapper/122:07:331
81560rcu_preempt0-21swapper/121:05:211
81560rcu_preempt0-21swapper/120:44:331
81560rcu_preempt0-21swapper/119:55:261
81560rcu_preempt0-21swapper/119:49:471
81560rcu_preempt0-21swapper/022:59:350
81560rcu_preempt0-21swapper/022:52:050
81560rcu_preempt0-21swapper/019:50:110
22018995648cyclictest945-21usb-storage21:30:221
81550rcu_preempt29172-21ntpq19:35:230
81550rcu_preempt22928-21ssh21:14:280
81550rcu_preempt21973-21ssh00:28:560
81550rcu_preempt0-21swapper/123:36:161
81550rcu_preempt0-21swapper/120:45:251
81550rcu_preempt0-21swapper/022:25:380
81550rcu_preempt0-21swapper/021:05:140
81550rcu_preempt0-21swapper/000:18:520
22018995547cyclictest945-21usb-storage22:14:301
81540rcu_preempt0-21swapper/120:31:381
81540rcu_preempt0-21swapper/119:35:211
81540rcu_preempt0-21swapper/119:10:281
81540rcu_preempt0-21swapper/022:20:180
81540rcu_preempt0-21swapper/020:20:100
81540rcu_preempt0-21swapper/020:15:060
81540rcu_preempt0-21swapper/019:40:200
81530rcu_preempt4820-21sshd20:07:090
81530rcu_preempt0-21swapper/120:50:421
81530rcu_preempt0-21swapper/119:50:051
81530rcu_preempt0-21swapper/119:32:061
81530rcu_preempt0-21swapper/021:54:100
81530rcu_preempt0-21swapper/020:57:250
81530rcu_preempt0-21swapper/020:47:090
81530rcu_preempt0-21swapper/020:25:200
81530rcu_preempt0-21swapper/019:23:210
81520rcu_preempt7995-21irqstats20:20:201
81520rcu_preempt0-21swapper/119:29:221
81520rcu_preempt0-21swapper/020:51:400
81500rcu_preempt2671-21fw_conntrack20:00:170
22018995048cyclictest945-21usb-storage20:25:211
81470rcu_preempt0-21swapper/019:15:460
2201799379cyclictest3023-21kworker/0:219:55:280
2201799379cyclictest3023-21kworker/0:219:12:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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