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2026-07-12 - 06:13
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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 Jul 12, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950810irq/17-ehci_hcd9373-21cpu00:31:240
81770rcu_preempt27354-21munin-run22:16:101
81740rcu_preempt24119-21sh00:00:031
81730rcu_preempt19891-21wc22:56:381
81730rcu_preempt15324-21if_eth020:41:291
81720rcu_preempt9108-21sh21:45:181
81720rcu_preempt30488-21latency_hist23:16:101
81720rcu_preempt0-21swapper/121:31:101
81710rcu_preempt25333-21ps19:11:340
81710rcu_preempt0-21swapper/121:50:091
81710rcu_preempt0-21swapper/100:38:401
81710rcu_preempt0-21swapper/021:58:370
81700rcu_preempt32541-21ssh21:30:310
81700rcu_preempt32093-21sh00:12:111
81700rcu_preempt0-21swapper/122:16:251
81700rcu_preempt0-21swapper/121:36:281
81700rcu_preempt0-21swapper/000:20:420
81690rcu_preempt26743-21munin-run21:21:110
81690rcu_preempt17469-21ssh22:52:551
81690rcu_preempt14472-1kworker/0:0H22:19:190
81690rcu_preempt0-21swapper/000:11:200
81680rcu_preempt2997-21ssh22:28:381
81680rcu_preempt28709-21ssh21:23:061
81680rcu_preempt15128-21ssh22:49:331
81680rcu_preempt0-21swapper/023:19:460
81680rcu_preempt0-21swapper/022:49:430
81670rcu_preempt10140-21fw_forwarded_lo20:21:250
81670rcu_preempt0-21swapper/123:33:231
81670rcu_preempt0-21swapper/121:51:271
81670rcu_preempt0-21swapper/121:30:081
81670rcu_preempt0-21swapper/119:31:301
81670rcu_preempt0-21swapper/119:15:501
81660rcu_preempt30405-21apt-get22:21:210
81660rcu_preempt0-21swapper/120:47:181
81660rcu_preempt0-21swapper/119:41:381
81660rcu_preempt0-21swapper/119:16:391
81660rcu_preempt0-21swapper/023:32:100
81660rcu_preempt0-21swapper/021:38:290
81650rcu_preempt8080-21ntp_states20:11:331
81650rcu_preempt17155-21sh00:43:470
81650rcu_preempt0-21swapper/123:24:111
81650rcu_preempt0-21swapper/123:06:071
81650rcu_preempt0-21swapper/121:01:371
81650rcu_preempt0-21swapper/100:28:231
81650rcu_preempt0-21swapper/022:45:310
89950640irq/17-ehci_hcd945-21usb-storage23:56:230
81640rcu_preempt6726-21cpuspeed21:41:230
81640rcu_preempt0-21swapper/122:42:011
81640rcu_preempt0-21swapper/120:06:101
81640rcu_preempt0-21swapper/100:11:031
81640rcu_preempt0-21swapper/022:03:160
81640rcu_preempt0-21swapper/021:23:100
81640rcu_preempt0-21swapper/021:01:350
81640rcu_preempt0-21swapper/020:41:360
81630rcu_preempt9127-21ssh00:31:050
81630rcu_preempt8606-21ssh22:38:081
81630rcu_preempt3-21ksoftirqd/023:44:150
81630rcu_preempt27068-21ssh00:04:441
81630rcu_preempt23791-21ssh22:09:501
81630rcu_preempt23630-21diskmemload23:17:261
81630rcu_preempt0-21swapper/121:07:431
81630rcu_preempt0-21swapper/023:49:090
81630rcu_preempt0-21swapper/023:26:110
81630rcu_preempt0-21swapper/022:37:540
81630rcu_preempt0-21swapper/022:31:300
81630rcu_preempt0-21swapper/022:10:440
81630rcu_preempt0-21swapper/020:47:140
81630rcu_preempt0-21swapper/000:39:470
81620rcu_preempt5872-21ssh22:33:291
81620rcu_preempt0-21swapper/023:22:410
81610rcu_preempt27687-21cpu23:11:250
81610rcu_preempt21056-21ssh23:54:251
81610rcu_preempt17101-21ssh21:57:361
81610rcu_preempt11075-21ssh00:33:201
81610rcu_preempt0-21swapper/123:41:261
81610rcu_preempt0-21swapper/123:06:301
81610rcu_preempt0-21swapper/122:21:541
81610rcu_preempt0-21swapper/020:26:230
81610rcu_preempt0-21swapper/019:26:250
81600rcu_preempt5524-21ssh23:27:201
81600rcu_preempt3888-21if_eth100:21:290
81600rcu_preempt25234-21if_wlan023:06:280
81600rcu_preempt0-21swapper/121:20:171
81600rcu_preempt0-21swapper/120:26:241
81600rcu_preempt0-21swapper/100:17:201
81600rcu_preempt0-21swapper/021:33:360
81590rcu_preempt15886-21ssh23:46:211
81590rcu_preempt0-21swapper/122:02:461
81590rcu_preempt0-21swapper/120:31:331
81590rcu_preempt0-21swapper/023:05:070
81580rcu_preempt4686-21ssh00:21:531
81580rcu_preempt26974-21ssh00:04:290
81580rcu_preempt23630-21diskmemload23:40:530
81580rcu_preempt23630-21diskmemload22:58:430
81580rcu_preempt13270-21strings21:51:320
81580rcu_preempt0-21swapper/123:39:051
81580rcu_preempt0-21swapper/120:54:261
81580rcu_preempt0-21swapper/120:39:341
81580rcu_preempt0-21swapper/120:16:291
81580rcu_preempt0-21swapper/119:26:291
81580rcu_preempt0-21swapper/119:21:381
81580rcu_preempt0-21swapper/119:21:381
81580rcu_preempt0-21swapper/023:55:500
81580rcu_preempt0-21swapper/021:46:200
81580rcu_preempt0-21swapper/019:16:340
81570rcu_preempt31139-21diskstats19:36:271
81570rcu_preempt0-21swapper/022:11:440
81570rcu_preempt0-21swapper/020:56:310
81570rcu_preempt0-21swapper/000:10:160
81560rcu_preempt0-21swapper/119:58:351
81560rcu_preempt0-21swapper/100:45:251
81560rcu_preempt0-21swapper/022:29:300
81560rcu_preempt0-21swapper/019:31:400
146250560irq/28-eth0-rx-41ktimersoftd/019:59:120
81550rcu_preempt16968-21ssh22:51:390
81550rcu_preempt0-21swapper/020:01:280
81540rcu_preempt0-21swapper/119:46:531
81540rcu_preempt0-21swapper/020:20:020
81540rcu_preempt0-21swapper/020:11:300
81530rcu_preempt6828-21ntp_states20:06:341
81530rcu_preempt10117-21df_inode20:21:241
81530rcu_preempt0-21swapper/121:11:431
81530rcu_preempt0-21swapper/020:54:380
81530rcu_preempt0-21swapper/019:43:430
81530rcu_preempt0-21swapper/019:36:390
81530rcu_preempt0-21swapper/019:21:280
81530rcu_preempt0-21swapper/019:21:280
81520rcu_preempt0-21swapper/021:06:280
81510rcu_preempt0-21swapper/020:36:240
81510rcu_preempt0-21swapper/020:08:020
25653995047cyclictest945-21usb-storage19:56:100
81490rcu_preempt23613-21cron21:16:110
25653994845cyclictest945-21usb-storage19:46:350
146250470irq/28-eth0-rx-0-21swapper/120:57:451
81460rcu_preempt3233-21python19:51:351
89950370irq/17-ehci_hcd945-21usb-storage20:36:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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