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2026-03-29 - 22:57
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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 Sun Mar 29, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt0-21swapper/111:51:501
81800rcu_preempt19-21ksoftirqd/110:56:261
81770rcu_preempt0-21swapper/107:11:591
81760rcu_preempt0-21swapper/109:39:011
81720rcu_preempt2050-21ssh10:58:060
81710rcu_preempt16865-21ssh12:29:460
81710rcu_preempt0-21swapper/010:32:000
81700rcu_preempt17909-21diskmemload09:24:240
81700rcu_preempt16289-1kworker/0:2H12:15:210
81700rcu_preempt0-21swapper/009:56:570
81700rcu_preempt0-21swapper/007:30:090
89850690irq/17-ehci_hcd0-21swapper/111:43:331
81690rcu_preempt14487-21munin-run07:14:460
81690rcu_preempt0-21swapper/011:11:180
81690rcu_preempt0-21swapper/009:05:070
89850680irq/17-ehci_hcd945-21usb-storage09:20:051
81680rcu_preempt12489-21diskmemload11:59:260
81680rcu_preempt0-21swapper/012:01:460
81670rcu_preempt6131-21munin-run08:49:460
81670rcu_preempt23642-21df_inode09:35:010
81670rcu_preempt0-21swapper/110:34:271
81670rcu_preempt0-21swapper/012:35:000
81670rcu_preempt0-21swapper/010:47:180
81670rcu_preempt0-21swapper/009:00:440
81660rcu_preempt22715-21ssh12:40:060
81660rcu_preempt17895-21processes12:30:120
81660rcu_preempt14514-21cyclictest11:35:010
81660rcu_preempt1268-21latency_hist09:54:470
81660rcu_preempt0-21swapper/010:51:320
81660rcu_preempt0-21swapper/007:42:030
81650rcu_preempt12600-21ssh10:15:090
81650rcu_preempt11275-21ssh11:15:090
81650rcu_preempt0-21swapper/011:05:220
81640rcu_preempt0-21swapper/009:45:050
89850630irq/17-ehci_hcd945-21usb-storage10:11:580
81630rcu_preempt26840-21ssh09:40:110
81630rcu_preempt19019-21ssh09:25:100
81630rcu_preempt15768-21munin-run07:19:460
81630rcu_preempt0-21swapper/011:25:050
81630rcu_preempt0-21swapper/008:55:070
81620rcu_preempt0-21swapper/011:50:150
89850610irq/17-ehci_hcd945-21usb-storage10:22:131
81610rcu_preempt19021-21ssh11:30:091
81610rcu_preempt0-21swapper/111:07:311
81610rcu_preempt0-21swapper/009:15:140
81600rcu_preempt32042-21ssh10:53:501
81600rcu_preempt3117-21ssh12:02:221
81600rcu_preempt18305-21munin-run07:29:460
81600rcu_preempt16316-21ssh12:27:411
81600rcu_preempt0-21swapper/112:41:571
81600rcu_preempt0-21swapper/111:56:131
81600rcu_preempt0-21swapper/111:28:421
81600rcu_preempt0-21swapper/111:22:541
81600rcu_preempt0-21swapper/110:02:231
81600rcu_preempt0-21swapper/107:35:011
81600rcu_preempt0-21swapper/010:35:120
81600rcu_preempt0-21swapper/008:10:010
81590rcu_preempt30500-21ssh09:48:121
81590rcu_preempt28714-21ssh10:45:491
81590rcu_preempt27308-21ssh11:45:331
81590rcu_preempt26792-21ssh10:43:251
81590rcu_preempt22615-21ssh11:37:031
81590rcu_preempt12522-21ssh11:18:041
81590rcu_preempt0-21swapper/112:31:441
81590rcu_preempt0-21swapper/112:15:051
81590rcu_preempt0-21swapper/111:14:421
81590rcu_preempt0-21swapper/110:26:501
81590rcu_preempt0-21swapper/109:11:511
81590rcu_preempt0-21swapper/108:35:041
81590rcu_preempt0-21swapper/108:30:091
81590rcu_preempt0-21swapper/107:58:301
81590rcu_preempt0-21swapper/009:32:040
81580rcu_preempt8929-21ssh12:14:101
81580rcu_preempt5847-21ssh10:02:580
81580rcu_preempt5425-21ssh12:06:031
81580rcu_preempt27543-21ssh09:41:201
81580rcu_preempt23991-21ssh10:37:491
81580rcu_preempt21494-21ssh12:38:011
81580rcu_preempt20488-21ssh11:33:570
81580rcu_preempt13497-21ssh10:17:101
81580rcu_preempt13361-21ssh12:21:371
81580rcu_preempt10746-21ssh10:11:321
81580rcu_preempt0-21swapper/109:54:521
81580rcu_preempt0-21swapper/109:25:161
81580rcu_preempt0-21swapper/109:02:141
81580rcu_preempt0-21swapper/108:52:141
81580rcu_preempt0-21swapper/012:23:510
81580rcu_preempt0-21swapper/011:49:350
81580rcu_preempt0-21swapper/011:24:310
81580rcu_preempt0-21swapper/008:50:040
81580rcu_preempt0-21swapper/007:35:120
81570rcu_preempt8362-21ssh12:11:510
81570rcu_preempt25606-21ssh11:43:450
81570rcu_preempt21673-21ntpq07:40:111
81570rcu_preempt2138-21snmpd10:09:191
81570rcu_preempt2138-21snmpd09:54:161
81570rcu_preempt0-21swapper/110:59:581
81570rcu_preempt0-21swapper/109:32:021
81570rcu_preempt0-21swapper/108:03:341
81570rcu_preempt0-21swapper/107:30:101
81570rcu_preempt0-21swapper/107:15:071
81570rcu_preempt0-21swapper/010:06:390
81570rcu_preempt0-21swapper/008:35:050
81560rcu_preempt0-21swapper/109:15:421
81560rcu_preempt0-21swapper/108:22:231
81560rcu_preempt0-21swapper/108:06:011
81560rcu_preempt0-21swapper/010:44:280
81560rcu_preempt0-21swapper/008:05:110
81560rcu_preempt0-21swapper/007:58:480
81550rcu_preempt15670-21ssh10:20:560
81550rcu_preempt0-21swapper/108:27:051
81550rcu_preempt0-21swapper/107:45:201
81550rcu_preempt0-21swapper/011:03:030
81550rcu_preempt0-21swapper/010:25:270
81550rcu_preempt0-21swapper/008:41:210
81550rcu_preempt0-21swapper/008:17:210
81550rcu_preempt0-21swapper/008:03:310
81540rcu_preempt5206-21ssh12:05:180
81540rcu_preempt0-21swapper/108:57:001
81540rcu_preempt0-21swapper/108:41:221
81540rcu_preempt0-21swapper/108:16:371
81530rcu_preempt0-21swapper/009:12:560
81520rcu_preempt28802-21fw_conntrack08:10:051
81520rcu_preempt24059-21memory07:50:091
81520rcu_preempt0-21swapper/008:27:270
81520rcu_preempt0-21swapper/007:53:040
81520rcu_preempt0-21swapper/007:48:210
81510rcu_preempt16173-21fw_forwarded_lo07:20:031
81510rcu_preempt0-21swapper/107:25:181
81510rcu_preempt0-21swapper/008:31:210
81510rcu_preempt0-21swapper/007:20:510
81500rcu_preempt0-21swapper/108:47:051
81470rcu_preempt0-21swapper/008:20:350
147650470irq/28-eth0-rx-0-21swapper/109:04:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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