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2026-04-18 - 15:50
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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 Apr 18, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt2061-21kernelversion11:21:011
81750rcu_preempt0-21swapper/111:04:521
81730rcu_preempt2537-21ntp_states07:11:030
81720rcu_preempt9120-21munin-run11:35:400
81720rcu_preempt15945-21df_abs08:05:550
81720rcu_preempt0-21swapper/108:50:551
81710rcu_preempt0-21swapper/012:24:180
81710rcu_preempt0-21swapper/010:15:570
81710rcu_preempt0-21swapper/008:26:020
81700rcu_preempt0-21swapper/009:16:000
147650700irq/28-eth0-rx-41ktimersoftd/009:56:470
81690rcu_preempt873-21diskmemload09:41:070
81690rcu_preempt3417-1kworker/0:1H12:35:390
81680rcu_preempt0-21swapper/009:46:000
81680rcu_preempt0-21swapper/009:33:350
81670rcu_preempt0-21swapper/111:45:591
81670rcu_preempt0-21swapper/011:47:590
81650rcu_preempt26467-21missed_timers08:45:590
81640rcu_preempt30256-21ssh12:15:560
81640rcu_preempt0-21swapper/012:00:510
81640rcu_preempt0-21swapper/007:56:010
81630rcu_preempt0-21swapper/011:58:270
81630rcu_preempt0-21swapper/010:51:000
81630rcu_preempt0-21swapper/010:40:370
81620rcu_preempt5491-21ssh11:26:541
81620rcu_preempt2427-21ssh10:19:501
81620rcu_preempt0-21swapper/112:21:151
81620rcu_preempt0-21swapper/112:14:111
81620rcu_preempt0-21swapper/111:13:421
81620rcu_preempt0-21swapper/109:51:151
81620rcu_preempt0-21swapper/108:04:291
81620rcu_preempt0-21swapper/107:15:251
81610rcu_preempt32447-21ssh10:15:321
81610rcu_preempt31967-21ssh12:19:261
81610rcu_preempt12601-21ssh12:45:001
81610rcu_preempt12278-21ssh10:38:021
81610rcu_preempt0-21swapper/111:38:561
81610rcu_preempt0-21swapper/111:16:171
81610rcu_preempt0-21swapper/109:23:331
81610rcu_preempt0-21swapper/011:41:040
81610rcu_preempt0-21swapper/011:11:020
89850600irq/17-ehci_hcd111rcuc/010:25:400
81600rcu_preempt7441-21ssh12:34:461
81600rcu_preempt2496-21ssh09:16:461
81600rcu_preempt16474-21ssh09:44:101
81600rcu_preempt13661-21ssh09:38:291
81600rcu_preempt11119-21ssh09:34:011
81600rcu_preempt0-21swapper/112:39:151
81600rcu_preempt0-21swapper/110:26:041
81600rcu_preempt0-21swapper/110:07:431
81600rcu_preempt0-21swapper/109:56:111
81600rcu_preempt0-21swapper/109:49:281
81600rcu_preempt0-21swapper/109:27:351
81600rcu_preempt0-21swapper/108:22:151
81600rcu_preempt0-21swapper/009:25:580
81590rcu_preempt5895-21ssh10:25:580
81590rcu_preempt31328-21ssh10:11:350
81590rcu_preempt27652-21ssh11:07:301
81590rcu_preempt2698-21ssh12:25:501
81590rcu_preempt21416-21ssh11:58:281
81590rcu_preempt17787-21ssh10:49:051
81590rcu_preempt0-21swapper/112:06:021
81590rcu_preempt0-21swapper/111:50:591
81590rcu_preempt0-21swapper/111:43:281
81590rcu_preempt0-21swapper/110:01:401
81590rcu_preempt0-21swapper/108:41:021
81590rcu_preempt0-21swapper/108:30:231
81590rcu_preempt0-21swapper/012:12:460
81590rcu_preempt0-21swapper/011:37:380
81590rcu_preempt0-21swapper/008:11:020
81580rcu_preempt5733-21ssh09:23:200
81580rcu_preempt4541-21ssh12:28:220
81580rcu_preempt24043-21ssh12:03:551
81580rcu_preempt0-21swapper/111:00:201
81580rcu_preempt0-21swapper/110:51:451
81580rcu_preempt0-21swapper/110:42:271
81580rcu_preempt0-21swapper/110:20:521
81580rcu_preempt0-21swapper/109:11:391
81580rcu_preempt0-21swapper/109:01:091
81580rcu_preempt0-21swapper/107:31:241
81580rcu_preempt0-21swapper/107:25:591
81580rcu_preempt0-21swapper/107:18:151
81580rcu_preempt0-21swapper/011:05:450
89450570irq/17-ehci_hcd0-21swapper/008:56:040
81570rcu_preempt26383-21ssh12:07:480
81570rcu_preempt22724-21ssh10:58:360
81570rcu_preempt19156-21sed08:16:050
81570rcu_preempt15211-21ssh10:44:210
81570rcu_preempt0-21swapper/111:34:301
81570rcu_preempt0-21swapper/110:32:131
81570rcu_preempt0-21swapper/108:34:351
81570rcu_preempt0-21swapper/108:15:571
81570rcu_preempt0-21swapper/107:56:061
81570rcu_preempt0-21swapper/107:40:051
81570rcu_preempt0-21swapper/011:05:130
81560rcu_preempt4090-21ssh11:25:420
81560rcu_preempt12168-21ssh12:43:230
81560rcu_preempt0-21swapper/108:56:061
81560rcu_preempt0-21swapper/107:50:591
81560rcu_preempt0-21swapper/012:38:540
81560rcu_preempt0-21swapper/011:53:340
81560rcu_preempt0-21swapper/009:51:510
81560rcu_preempt0-21swapper/008:41:050
81560rcu_preempt0-21swapper/008:35:340
89850550irq/17-ehci_hcd0-21swapper/107:20:581
81550rcu_preempt26185-21ssh10:01:300
81550rcu_preempt0-21swapper/009:36:300
81540rcu_preempt31499-21memory09:06:011
81540rcu_preempt28610-21ssh10:06:150
81540rcu_preempt0-21swapper/108:45:571
81540rcu_preempt0-21swapper/108:36:031
81540rcu_preempt0-21swapper/108:10:011
81540rcu_preempt0-21swapper/011:19:470
81540rcu_preempt0-21swapper/010:32:250
81540rcu_preempt0-21swapper/007:36:000
81530rcu_preempt2292-21ntpq11:21:030
81530rcu_preempt0-21swapper/009:01:420
81530rcu_preempt0-21swapper/008:01:570
81530rcu_preempt0-21swapper/007:51:000
81530rcu_preempt0-21swapper/007:30:550
81530rcu_preempt0-21swapper/007:26:020
81520rcu_preempt17308-21ssh10:47:210
81520rcu_preempt10189-21ps07:41:050
81520rcu_preempt10189-21ps07:41:050
81520rcu_preempt0-21swapper/108:12:071
81520rcu_preempt0-21swapper/009:08:390
2972995248cyclictest945-21usb-storage07:40:541
2972995248cyclictest945-21usb-storage07:40:541
81510rcu_preempt0-21swapper/008:52:510
81500rcu_preempt0-21swapper/007:48:050
81500rcu_preempt0-21swapper/007:48:050
2971995047cyclictest945-21usb-storage08:35:580
2971995047cyclictest945-21usb-storage08:21:050
2972994945cyclictest945-21usb-storage07:45:531
2972994945cyclictest945-21usb-storage07:45:531
81480rcu_preempt3345-21df_inode07:15:550
81480rcu_preempt32432-21df_inode09:10:560
89850400irq/17-ehci_hcd945-21usb-storage07:23:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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