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2026-03-21 - 19:03
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Sat Mar 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt31217-21ssh12:10:100
81740rcu_preempt2805-21ssh09:14:391
81740rcu_preempt19798-21ssh11:49:390
81740rcu_preempt13442-21cpu12:39:381
81730rcu_preempt25939-21df_abs10:59:421
81730rcu_preempt24346-21ssh10:55:200
81730rcu_preempt0-21swapper/012:04:500
147650730irq/28-eth0-rx-0-21swapper/107:14:051
81720rcu_preempt10813-21ntp_states10:29:491
81710rcu_preempt0-21swapper/112:24:451
81710rcu_preempt0-21swapper/108:54:511
81710rcu_preempt0-21swapper/108:04:501
81710rcu_preempt0-21swapper/012:30:100
81710rcu_preempt0-21swapper/011:59:550
81710rcu_preempt0-21swapper/011:58:580
81710rcu_preempt0-21swapper/009:29:260
81710rcu_preempt0-21swapper/008:44:400
81700rcu_preempt3931-21ntpq07:09:450
81700rcu_preempt0-21swapper/111:39:371
81700rcu_preempt0-21swapper/111:10:121
81700rcu_preempt0-21swapper/107:14:511
81690rcu_preempt4093-21sh12:20:111
81690rcu_preempt2271-21sh12:18:121
81690rcu_preempt0-21swapper/109:30:031
81690rcu_preempt0-21swapper/109:09:421
81680rcu_preempt19-21ksoftirqd/109:59:391
81680rcu_preempt0-21swapper/110:40:031
81680rcu_preempt0-21swapper/109:39:171
81680rcu_preempt0-21swapper/009:32:230
81680rcu_preempt0-21swapper/009:14:530
81670rcu_preempt6032-21ssh12:24:460
81670rcu_preempt24829-21cut08:34:371
81670rcu_preempt17922-21ssh10:44:370
81670rcu_preempt0-21swapper/112:02:061
81670rcu_preempt0-21swapper/111:33:591
81670rcu_preempt0-21swapper/110:24:281
81670rcu_preempt0-21swapper/110:10:571
81660rcu_preempt3034-21df_abs12:19:380
81660rcu_preempt19519-21munin-run08:14:250
81660rcu_preempt18316-21munin-run09:44:250
81660rcu_preempt0-21swapper/109:47:411
81660rcu_preempt0-21swapper/109:23:051
81650rcu_preempt14114-21proc_pri07:49:481
81650rcu_preempt0-21swapper/110:53:261
81650rcu_preempt0-21swapper/110:38:111
81650rcu_preempt0-21swapper/107:46:221
81640rcu_preempt0-21swapper/112:09:511
81640rcu_preempt0-21swapper/010:59:490
81630rcu_preempt2344-21diskmemload11:19:401
81630rcu_preempt13260-21latency_hist12:39:261
81630rcu_preempt0-21swapper/111:05:261
81630rcu_preempt0-21swapper/109:50:161
81630rcu_preempt0-21swapper/010:14:410
81620rcu_preempt7793-21ssh11:25:361
81620rcu_preempt0-21swapper/010:29:310
81620rcu_preempt0-21swapper/010:26:110
81620rcu_preempt0-21swapper/008:59:380
89850610irq/17-ehci_hcd22739-21ssh09:51:150
81610rcu_preempt13091-21timerandwakeup07:44:510
81610rcu_preempt11260-21irqstats12:34:460
81610rcu_preempt0-21swapper/110:07:081
81610rcu_preempt0-21swapper/109:26:441
81610rcu_preempt0-21swapper/108:51:441
81610rcu_preempt0-21swapper/108:14:511
81610rcu_preempt0-21swapper/107:54:451
81600rcu_preempt30574-21ssh10:05:530
81600rcu_preempt27272-21ntp_states09:59:500
81600rcu_preempt25913-21latency_hist08:39:251
81600rcu_preempt19805-21df_abs08:14:390
81600rcu_preempt15515-21ssh10:39:400
81600rcu_preempt0-21swapper/111:45:311
81600rcu_preempt0-21swapper/111:35:291
81600rcu_preempt0-21swapper/110:57:431
81600rcu_preempt0-21swapper/109:58:001
81600rcu_preempt0-21swapper/107:29:491
81600rcu_preempt0-21swapper/107:24:241
81600rcu_preempt0-21swapper/009:19:260
81600rcu_preempt0-21swapper/007:49:380
81600rcu_preempt0-21swapper/007:29:490
81590rcu_preempt8871-21ps12:29:501
81590rcu_preempt8430-21ssh11:27:480
81590rcu_preempt32542-21ssh12:14:390
81590rcu_preempt3-21ksoftirqd/011:20:120
81590rcu_preempt25129-21ssh09:55:130
81590rcu_preempt19703-21sh11:49:391
81590rcu_preempt14717-21ssh10:38:210
81590rcu_preempt11980-21df_inode11:34:390
81590rcu_preempt0-21swapper/111:58:301
81590rcu_preempt0-21swapper/111:14:511
81590rcu_preempt0-21swapper/110:48:011
81590rcu_preempt0-21swapper/109:39:461
81590rcu_preempt0-21swapper/109:02:081
81590rcu_preempt0-21swapper/108:24:491
81590rcu_preempt0-21swapper/107:34:481
81590rcu_preempt0-21swapper/011:09:450
81580rcu_preempt7183-21ssh10:24:241
81580rcu_preempt1693-21ssh10:13:450
81580rcu_preempt0-21swapper/112:09:001
81580rcu_preempt0-21swapper/109:07:281
81580rcu_preempt0-21swapper/108:46:401
81580rcu_preempt0-21swapper/108:19:411
81580rcu_preempt0-21swapper/008:19:370
81580rcu_preempt0-21swapper/007:34:380
81570rcu_preempt2510-21ssh11:15:110
81570rcu_preempt0-21swapper/107:39:331
81570rcu_preempt0-21swapper/107:26:561
81570rcu_preempt0-21swapper/011:06:520
81570rcu_preempt0-21swapper/009:44:480
81570rcu_preempt0-21swapper/009:36:510
81570rcu_preempt0-21swapper/008:54:420
81560rcu_preempt24095-21strings08:29:470
81560rcu_preempt2344-21diskmemload10:22:580
81560rcu_preempt18775-21ssh11:47:250
81560rcu_preempt0-21swapper/110:17:201
81560rcu_preempt0-21swapper/108:10:081
81560rcu_preempt0-21swapper/108:04:241
81560rcu_preempt0-21swapper/010:50:230
81560rcu_preempt0-21swapper/008:34:380
89850550irq/17-ehci_hcd945-21usb-storage08:28:300
81550rcu_preempt15594-21ssh11:40:300
81550rcu_preempt0-21swapper/012:40:280
81550rcu_preempt0-21swapper/011:31:160
81530rcu_preempt0-21swapper/008:04:300
81520rcu_preempt16584-21ntp_states07:59:480
81520rcu_preempt0-21swapper/009:11:200
81510rcu_preempt2138-21snmpd08:53:480
81510rcu_preempt0-21swapper/007:25:470
4374995047cyclictest945-21usb-storage07:54:410
81490rcu_preempt24527-21users08:29:521
81480rcu_preempt11258-21if_wlan007:39:420
81470rcu_preempt4741-21df_inode07:14:400
81470rcu_preempt0-21swapper/009:05:370
4374994744cyclictest945-21usb-storage07:23:160
81410rcu_preempt26685-21ntp_states08:39:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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