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2026-07-08 - 11:55
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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 Wed Jul 08, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146650770irq/31-eth0-tx-10317-21ssh22:02:210
81730rcu_preempt11937-21missed_timers21:06:101
81720rcu_preempt17948-21apt-esm-hook23:11:041
81720rcu_preempt0-21swapper/120:10:501
81720rcu_preempt0-21swapper/119:11:451
81720rcu_preempt0-21swapper/022:26:170
81710rcu_preempt5501-21ssh23:43:370
81710rcu_preempt12306-21turbostat00:00:450
81710rcu_preempt0-21swapper/122:41:031
81710rcu_preempt0-21swapper/021:46:130
81700rcu_preempt0-21swapper/123:09:411
81700rcu_preempt0-21swapper/121:31:161
81700rcu_preempt0-21swapper/023:01:090
81700rcu_preempt0-21swapper/000:06:120
81690rcu_preempt13959-21apt-get21:16:031
81690rcu_preempt12922-21sh22:06:230
81690rcu_preempt0-21swapper/123:39:581
81690rcu_preempt0-21swapper/119:16:041
81690rcu_preempt0-21swapper/021:28:460
81680rcu_preempt937-21ntp_states22:41:130
81680rcu_preempt29922-21ssh00:25:590
81680rcu_preempt0-21swapper/123:54:521
81680rcu_preempt0-21swapper/123:00:211
81680rcu_preempt0-21swapper/122:17:191
81680rcu_preempt0-21swapper/021:56:130
81680rcu_preempt0-21swapper/021:43:290
81680rcu_preempt0-21swapper/021:36:100
81670rcu_preempt0-21swapper/123:18:301
81670rcu_preempt0-21swapper/122:03:501
81670rcu_preempt0-21swapper/100:03:221
81670rcu_preempt0-21swapper/022:49:240
81660rcu_preempt5324-21ls20:41:070
81660rcu_preempt27120-21df_abs00:21:050
81660rcu_preempt17596-21if_eth119:21:121
81660rcu_preempt0-21swapper/122:53:101
89950650irq/17-ehci_hcd945-21usb-storage21:51:071
81650rcu_preempt23735-21ssh21:31:120
81650rcu_preempt12890-21ssh23:01:141
81640rcu_preempt7855-21sort20:51:081
81640rcu_preempt28221-21ssh23:26:291
81640rcu_preempt20395-21ntpq19:31:121
81640rcu_preempt0-21swapper/120:56:161
81640rcu_preempt0-21swapper/119:41:041
81640rcu_preempt0-21swapper/100:26:441
81640rcu_preempt0-21swapper/020:46:030
81640rcu_preempt0-21swapper/000:38:570
81630rcu_preempt3-21ksoftirqd/022:23:450
81630rcu_preempt29238-21head20:06:090
81630rcu_preempt21253-21latency_hist00:10:511
81630rcu_preempt1835-21ssh21:48:371
81630rcu_preempt0-21swapper/100:38:191
81630rcu_preempt0-21swapper/023:11:170
81630rcu_preempt0-21swapper/022:11:130
81630rcu_preempt0-21swapper/021:11:060
81630rcu_preempt0-21swapper/019:36:190
89950620irq/17-ehci_hcd0-21swapper/123:22:321
81620rcu_preempt28094-21ssh00:21:251
81620rcu_preempt14526-21ssh23:58:541
81620rcu_preempt0-21swapper/122:21:361
81620rcu_preempt0-21swapper/121:56:291
81620rcu_preempt0-21swapper/121:43:281
81620rcu_preempt0-21swapper/119:46:111
81620rcu_preempt0-21swapper/100:41:421
81620rcu_preempt0-21swapper/023:26:000
81620rcu_preempt0-21swapper/000:01:150
81610rcu_preempt31941-21ssh23:33:381
81610rcu_preempt0-21swapper/123:50:391
81610rcu_preempt0-21swapper/122:32:471
81610rcu_preempt0-21swapper/121:24:521
81610rcu_preempt0-21swapper/120:38:251
81610rcu_preempt0-21swapper/023:35:050
81600rcu_preempt6534-21if_can022:51:110
81600rcu_preempt5732-21ssh22:50:071
81600rcu_preempt27948-21ssh22:31:210
81600rcu_preempt16343-21ssh22:12:311
81600rcu_preempt13749-21diskmemload23:25:090
81600rcu_preempt13083-21ssh22:06:501
81600rcu_preempt0-21swapper/123:45:021
81600rcu_preempt0-21swapper/020:16:110
81590rcu_preempt25126-21ssh22:27:041
81590rcu_preempt20241-21ssh21:26:011
81590rcu_preempt15732-21ssh23:06:110
81590rcu_preempt13749-21diskmemload22:38:500
81590rcu_preempt0-21swapper/122:39:441
81590rcu_preempt0-21swapper/120:31:081
81590rcu_preempt0-21swapper/120:16:171
81590rcu_preempt0-21swapper/100:35:381
81590rcu_preempt0-21swapper/100:11:301
81590rcu_preempt0-21swapper/000:41:340
81580rcu_preempt9003-21ssh23:50:020
81580rcu_preempt27038-21kworker/0:019:11:070
81580rcu_preempt22835-21ssh00:11:580
81580rcu_preempt0-21swapper/120:46:081
81580rcu_preempt0-21swapper/120:11:131
81580rcu_preempt0-21swapper/120:01:241
81580rcu_preempt0-21swapper/119:54:541
81580rcu_preempt0-21swapper/119:35:571
81580rcu_preempt0-21swapper/100:18:461
81580rcu_preempt0-21swapper/023:17:230
81580rcu_preempt0-21swapper/021:25:160
81580rcu_preempt0-21swapper/021:17:440
81570rcu_preempt26777-21ps19:56:130
81570rcu_preempt0-21swapper/120:23:141
81570rcu_preempt0-21swapper/023:51:310
81570rcu_preempt0-21swapper/022:17:200
81570rcu_preempt0-21swapper/021:53:150
81570rcu_preempt0-21swapper/020:51:140
81570rcu_preempt0-21swapper/019:51:130
81570rcu_preempt0-21swapper/019:42:320
81570rcu_preempt0-21swapper/000:34:590
81570rcu_preempt0-21swapper/000:16:150
81560rcu_preempt10949-21ssh22:58:280
81560rcu_preempt0-21swapper/023:36:060
81560rcu_preempt0-21swapper/019:26:030
81550rcu_preempt0-21swapper/121:02:361
81550rcu_preempt0-21swapper/119:28:241
81550rcu_preempt0-21swapper/020:33:270
81540rcu_preempt4557-21proc_pri20:36:150
81540rcu_preempt0-21swapper/020:26:150
81540rcu_preempt0-21swapper/019:31:180
81530rcu_preempt32632-21fw_forwarded_lo20:21:070
81530rcu_preempt28529-21ssh21:39:201
81530rcu_preempt26248-21df_inode19:56:041
81530rcu_preempt0-21swapper/020:03:280
81520rcu_preempt5767-21ntp_states20:41:131
81520rcu_preempt0-21swapper/021:05:580
81520rcu_preempt0-21swapper/021:04:460
81520rcu_preempt0-21swapper/019:23:410
15770995248cyclictest945-21usb-storage20:56:070
81510rcu_preempt30315-21modprobe20:11:080
81510rcu_preempt0-21swapper/019:48:520
81500rcu_preempt1501-21fw_conntrack20:26:061
89950430irq/17-ehci_hcd25350-1kworker/1:2H21:11:001
15770994211cyclictest15710-21kworker/0:219:17:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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