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2025-12-20 - 22:21
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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 Dec 20, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt147950irq/31-eth0-tx-07:08:270
81720rcu_preempt0-21swapper/107:07:141
81710rcu_preempt0-21swapper/011:40:370
81690rcu_preempt19931-1kworker/0:0H11:25:390
81680rcu_preempt5220-21df_inode09:10:320
81680rcu_preempt0-21swapper/011:49:220
81680rcu_preempt0-21swapper/011:30:330
81670rcu_preempt4747-21diskmemload10:42:330
81670rcu_preempt29674-21memory09:50:410
81670rcu_preempt0-21swapper/011:51:210
81670rcu_preempt0-21swapper/011:51:210
81660rcu_preempt8220-21df_inode09:15:320
81660rcu_preempt3-21ksoftirqd/009:45:280
81660rcu_preempt0-21swapper/011:03:400
81660rcu_preempt0-21swapper/010:49:050
81660rcu_preempt0-21swapper/009:25:410
81650rcu_preempt18240-21ssh09:30:490
81650rcu_preempt12484-21cat11:10:180
81650rcu_preempt0-21swapper/111:57:411
81650rcu_preempt0-21swapper/111:00:591
81650rcu_preempt0-21swapper/110:34:391
81650rcu_preempt0-21swapper/110:18:481
81650rcu_preempt0-21swapper/008:55:410
81640rcu_preempt0-21swapper/112:15:331
81640rcu_preempt0-21swapper/111:20:431
81640rcu_preempt0-21swapper/108:18:271
81630rcu_preempt870-21cron08:55:160
81630rcu_preempt4747-21diskmemload11:30:431
81630rcu_preempt32650-21memory09:55:380
81630rcu_preempt26469-21switchtime12:25:440
81630rcu_preempt0-21swapper/110:57:271
81630rcu_preempt0-21swapper/110:05:031
81630rcu_preempt0-21swapper/010:00:410
81620rcu_preempt28270-21munin-run08:35:160
81620rcu_preempt0-21swapper/112:35:411
81620rcu_preempt0-21swapper/008:17:490
81620rcu_preempt0-21swapper/007:29:200
81610rcu_preempt3246-21ssh10:55:061
81610rcu_preempt18713-21ssh09:32:081
81610rcu_preempt0-21swapper/112:23:591
81610rcu_preempt0-21swapper/108:35:421
81610rcu_preempt0-21swapper/108:12:541
81610rcu_preempt0-21swapper/107:45:311
81610rcu_preempt0-21swapper/012:00:410
81610rcu_preempt0-21swapper/011:19:130
81600rcu_preempt13929-21ssh11:11:061
81600rcu_preempt0-21swapper/112:25:371
81600rcu_preempt0-21swapper/112:14:261
81600rcu_preempt0-21swapper/112:08:571
81600rcu_preempt0-21swapper/111:05:371
81600rcu_preempt0-21swapper/110:22:141
81600rcu_preempt0-21swapper/109:55:361
81600rcu_preempt0-21swapper/109:48:161
81600rcu_preempt0-21swapper/109:27:531
81600rcu_preempt0-21swapper/109:20:551
81600rcu_preempt0-21swapper/108:50:331
81590rcu_preempt31300-21ssh09:53:491
81590rcu_preempt24238-21ssh09:40:491
81590rcu_preempt0-21swapper/111:26:591
81590rcu_preempt0-21swapper/110:26:431
81590rcu_preempt0-21swapper/107:55:401
81580rcu_preempt7966-21ssh10:08:521
81580rcu_preempt31544-21ssh10:47:071
81580rcu_preempt30491-21ssh12:33:091
81580rcu_preempt28862-21ssh11:35:481
81580rcu_preempt23320-21df_inode09:40:350
81580rcu_preempt0-21swapper/111:41:141
81580rcu_preempt0-21swapper/110:43:271
81580rcu_preempt0-21swapper/110:35:421
81580rcu_preempt0-21swapper/110:10:481
81580rcu_preempt0-21swapper/109:40:121
81580rcu_preempt0-21swapper/109:13:201
81580rcu_preempt0-21swapper/109:00:351
81580rcu_preempt0-21swapper/108:20:351
81580rcu_preempt0-21swapper/012:39:420
81580rcu_preempt0-21swapper/012:24:480
81580rcu_preempt0-21swapper/009:00:330
81570rcu_preempt8675-21ssh11:56:140
81570rcu_preempt5706-21ssh11:51:201
81570rcu_preempt5706-21ssh11:51:201
81570rcu_preempt2634-21ssh11:46:101
81570rcu_preempt25791-21latency_hist08:25:160
81570rcu_preempt22213-21grep08:10:310
81570rcu_preempt10839-21ssh10:13:200
81570rcu_preempt0-21swapper/112:01:421
81570rcu_preempt0-21swapper/111:15:271
81570rcu_preempt0-21swapper/107:32:521
81570rcu_preempt0-21swapper/107:28:461
81570rcu_preempt0-21swapper/012:31:170
81570rcu_preempt0-21swapper/010:35:350
81570rcu_preempt0-21swapper/010:26:430
81570rcu_preempt0-21swapper/010:15:260
81570rcu_preempt0-21swapper/010:08:530
81570rcu_preempt0-21swapper/007:43:050
81560rcu_preempt21589-21ssh10:30:400
81560rcu_preempt14832-21ssh11:13:400
81560rcu_preempt10463-21ssh09:19:201
81560rcu_preempt0-21swapper/108:35:091
81560rcu_preempt0-21swapper/108:05:121
81560rcu_preempt0-21swapper/107:17:531
81560rcu_preempt0-21swapper/011:37:270
81560rcu_preempt0-21swapper/009:20:450
81550rcu_preempt4829-21ssh10:56:070
81550rcu_preempt26526-21sed08:25:380
81550rcu_preempt21236-21ssh09:35:490
81550rcu_preempt19083-21ssh12:14:590
81550rcu_preempt16575-21ssh10:22:260
81550rcu_preempt0-21swapper/107:50:411
81550rcu_preempt0-21swapper/107:40:501
81550rcu_preempt0-21swapper/107:35:431
81550rcu_preempt0-21swapper/012:20:080
81550rcu_preempt0-21swapper/011:20:480
81550rcu_preempt0-21swapper/008:00:310
81550rcu_preempt0-21swapper/007:50:310
81550rcu_preempt0-21swapper/007:34:260
81540rcu_preempt2303-21ssh10:52:290
81540rcu_preempt15270-21ssh12:07:400
81540rcu_preempt0-21swapper/108:07:441
81540rcu_preempt0-21swapper/008:41:270
81540rcu_preempt0-21swapper/007:10:450
81530rcu_preempt0-21swapper/008:05:170
81530rcu_preempt0-21swapper/007:57:550
81520rcu_preempt0-21swapper/109:08:181
81520rcu_preempt0-21swapper/008:35:240
81520rcu_preempt0-21swapper/007:39:530
81510rcu_preempt31668-21ntp_states08:45:401
81510rcu_preempt0-21swapper/107:14:381
81490rcu_preempt31187-21df_inode08:45:320
81490rcu_preempt29927-21df_inode08:40:311
81490rcu_preempt0-21swapper/009:05:530
6774994947cyclictest945-21usb-storage08:55:371
81450rcu_preempt0-21swapper/007:15:370
89850390irq/17-ehci_hcd16276-21irqstats07:45:360
89850380irq/17-ehci_hcd945-21usb-storage07:23:480
6774993432cyclictest945-21usb-storage08:26:281
81330rcu_preempt9415-21latency_hist07:20:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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