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2025-12-27 - 21:43
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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 Dec 27, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt9446-21ls08:10:510
81740rcu_preempt0-21swapper/007:05:360
81700rcu_preempt23278-1kworker/0:0H10:09:340
81690rcu_preempt24934-21ssh09:10:511
81690rcu_preempt24452-21diskmemload11:47:530
81690rcu_preempt0-21swapper/111:41:181
81690rcu_preempt0-21swapper/010:50:530
81690rcu_preempt0-21swapper/010:45:570
81680rcu_preempt13850-21ssh09:45:581
81680rcu_preempt0-21swapper/007:20:510
81670rcu_preempt25181-21sh11:56:530
81670rcu_preempt17776-21ssh09:52:380
81670rcu_preempt0-21swapper/111:47:381
81660rcu_preempt369-21sed07:35:361
81660rcu_preempt28541-21ntp_states09:15:581
81660rcu_preempt1333-21memory11:16:030
81660rcu_preempt0-21swapper/112:20:061
81660rcu_preempt0-21swapper/110:30:001
81660rcu_preempt0-21swapper/108:06:021
81660rcu_preempt0-21swapper/009:35:210
81660rcu_preempt0-21swapper/008:40:570
81650rcu_preempt28998-21latency_hist07:20:361
81650rcu_preempt28566-21ntpdc07:15:590
81650rcu_preempt26640-21ssh12:00:480
81650rcu_preempt0-21swapper/111:23:061
81650rcu_preempt0-21swapper/111:09:451
81650rcu_preempt0-21swapper/110:11:391
81650rcu_preempt0-21swapper/109:57:551
81650rcu_preempt0-21swapper/109:36:201
81640rcu_preempt25035-21/usr/sbin/munin10:05:511
81640rcu_preempt0-21swapper/111:18:461
81640rcu_preempt0-21swapper/109:41:361
81640rcu_preempt0-21swapper/012:31:520
81630rcu_preempt0-21swapper/110:20:191
81630rcu_preempt0-21swapper/011:25:490
81630rcu_preempt0-21swapper/007:10:480
81620rcu_preempt9176-21ssh10:33:560
81620rcu_preempt8923-21sh10:33:151
81620rcu_preempt22727-21ssh11:53:181
81620rcu_preempt12425-21ssh11:35:520
81620rcu_preempt0-21swapper/111:35:311
81620rcu_preempt0-21swapper/008:22:090
89450610irq/17-ehci_hcd0-21swapper/011:00:120
81610rcu_preempt25639-21ssh11:58:141
81610rcu_preempt22916-21ssh10:56:211
81610rcu_preempt17583-21ssh10:48:101
81610rcu_preempt0-21swapper/112:09:341
81610rcu_preempt0-21swapper/008:26:000
81610rcu_preempt0-21swapper/007:57:510
147650610irq/28-eth0-rx-0-21swapper/107:07:161
81600rcu_preempt6912-21ssh11:25:571
81600rcu_preempt4000-21rm12:16:090
81600rcu_preempt25706-21ssh11:01:261
81600rcu_preempt12672-21ssh10:40:221
81600rcu_preempt0-21swapper/112:26:541
81600rcu_preempt0-21swapper/111:10:521
81600rcu_preempt0-21swapper/011:05:560
81600rcu_preempt0-21swapper/010:04:330
81600rcu_preempt0-21swapper/008:15:510
81590rcu_preempt3195-21ssh09:28:121
81590rcu_preempt14437-21ssh10:42:031
81590rcu_preempt0-21swapper/112:11:571
81590rcu_preempt0-21swapper/112:11:571
81590rcu_preempt0-21swapper/112:03:261
81590rcu_preempt0-21swapper/111:36:561
81590rcu_preempt0-21swapper/109:52:241
81590rcu_preempt0-21swapper/108:30:551
81590rcu_preempt0-21swapper/108:10:531
81590rcu_preempt0-21swapper/107:40:501
81580rcu_preempt7015-21ssh12:21:421
81580rcu_preempt3-21ksoftirqd/009:16:220
81580rcu_preempt20204-21ssh09:56:330
81580rcu_preempt13512-21ssh12:33:551
81580rcu_preempt0-21swapper/112:38:291
81580rcu_preempt0-21swapper/109:32:111
81580rcu_preempt0-21swapper/109:22:281
81580rcu_preempt0-21swapper/012:39:240
81580rcu_preempt0-21swapper/012:25:460
81580rcu_preempt0-21swapper/012:10:080
81580rcu_preempt0-21swapper/011:41:340
81580rcu_preempt0-21swapper/011:23:320
81580rcu_preempt0-21swapper/010:23:180
81580rcu_preempt0-21swapper/010:11:000
81580rcu_preempt0-21swapper/008:46:000
81570rcu_preempt2780-21ssh09:27:010
81570rcu_preempt26132-21ssh09:11:500
81570rcu_preempt23144-21ssh11:54:300
81570rcu_preempt15561-21munin-run08:35:360
81570rcu_preempt0-21swapper/110:55:321
81570rcu_preempt0-21swapper/110:03:071
81570rcu_preempt0-21swapper/108:56:011
81570rcu_preempt0-21swapper/108:39:051
81570rcu_preempt0-21swapper/107:55:591
81570rcu_preempt0-21swapper/107:46:031
81570rcu_preempt0-21swapper/011:33:050
81570rcu_preempt0-21swapper/010:36:170
81570rcu_preempt0-21swapper/009:05:560
81560rcu_preempt32715-21ssh10:18:360
81560rcu_preempt0-21swapper/110:24:181
81560rcu_preempt0-21swapper/109:05:581
81560rcu_preempt0-21swapper/107:39:421
81560rcu_preempt0-21swapper/012:14:080
81560rcu_preempt0-21swapper/012:14:080
81560rcu_preempt0-21swapper/010:41:210
81550rcu_preempt24452-21diskmemload11:00:500
81550rcu_preempt15179-21ssh09:48:420
81550rcu_preempt12150-21ssh09:43:400
81550rcu_preempt0-21swapper/108:44:181
81550rcu_preempt0-21swapper/107:21:181
81550rcu_preempt0-21swapper/010:29:070
81550rcu_preempt0-21swapper/008:56:010
81550rcu_preempt0-21swapper/007:40:530
81540rcu_preempt818-21ssh09:25:030
81540rcu_preempt32064-21ssh11:12:520
81540rcu_preempt0-21swapper/109:03:051
81540rcu_preempt0-21swapper/108:51:081
81540rcu_preempt0-21swapper/012:23:090
81540rcu_preempt0-21swapper/009:38:020
81530rcu_preempt7116-21df_inode08:00:511
81530rcu_preempt0-21swapper/007:31:080
81520rcu_preempt10905-21fw_conntrack08:15:521
81510rcu_preempt31600-21latency_hist07:30:361
81510rcu_preempt0-21swapper/108:20:471
81510rcu_preempt0-21swapper/008:50:520
81500rcu_preempt0-21swapper/009:02:100
81490rcu_preempt0-21swapper/008:05:470
81490rcu_preempt0-21swapper/007:28:420
147650470irq/28-eth0-rx-945-21usb-storage07:38:180
81460rcu_preempt7445-21memory08:00:570
81460rcu_preempt16772-21users08:36:000
26482994536cyclictest945-21usb-storage08:50:341
81440rcu_preempt0-21swapper/107:55:131
81430rcu_preempt3793-21ntpdc07:45:590
147650400irq/28-eth0-rx-0-21swapper/107:13:161
81340rcu_preempt19-21ksoftirqd/108:25:551
147950310irq/31-eth0-tx-0-21swapper/007:50:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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