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2026-04-08 - 18:23
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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 Apr 08, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/110:41:321
81780rcu_preempt23665-21grep09:50:270
81780rcu_preempt10205-21ssh09:24:460
147850760irq/30-eth0-tx-181ktimersoftd/110:13:051
81740rcu_preempt0-21swapper/011:05:370
81720rcu_preempt6637-21timerandwakeup07:10:371
81720rcu_preempt4773-21diskmemload11:10:201
81720rcu_preempt4773-21diskmemload11:10:201
81720rcu_preempt31012-21sshd10:04:400
81720rcu_preempt21821-21ssh09:45:371
81710rcu_preempt29783-21ssh11:03:500
81710rcu_preempt0-21swapper/012:43:000
81700rcu_preempt9249-21diskmemload12:29:171
81700rcu_preempt6482-21ssh09:16:470
81700rcu_preempt29107-21ntp_states08:40:360
81700rcu_preempt27372-21df_inode08:35:281
81700rcu_preempt21179-21ssh10:46:030
81700rcu_preempt19810-21ssh11:45:400
81700rcu_preempt1256-21ssh12:13:390
81700rcu_preempt12344-21diskmemload09:28:001
81700rcu_preempt11790-21ssh09:25:560
81700rcu_preempt0-21swapper/111:15:311
81700rcu_preempt0-21swapper/009:37:080
89850690irq/17-ehci_hcd29174-21awk10:00:311
81690rcu_preempt6527-21ssh12:23:520
81690rcu_preempt21280-21diskstats09:45:280
81690rcu_preempt1998-21diskstats10:10:280
81690rcu_preempt13951-21ssh12:37:410
81690rcu_preempt13804-21diskmemload12:37:061
81690rcu_preempt11768-21ssh10:29:200
81690rcu_preempt10690-21ssh11:30:010
81690rcu_preempt0-21swapper/010:19:400
81690rcu_preempt0-21swapper/008:55:290
81680rcu_preempt7604-21ssh11:22:540
81680rcu_preempt4121-21ssh12:19:490
81680rcu_preempt30863-21ssh12:07:540
81680rcu_preempt27959-21ssh12:02:040
81680rcu_preempt27539-21ssh11:00:130
81680rcu_preempt25243-21ssh11:56:170
81680rcu_preempt17038-21apt-esm-hook07:55:250
81680rcu_preempt15117-21ssh09:33:430
81680rcu_preempt13780-21ssh10:32:150
81680rcu_preempt11992-21ssh12:35:030
81680rcu_preempt0-21swapper/111:21:281
81680rcu_preempt0-21swapper/110:36:311
81680rcu_preempt0-21swapper/011:51:140
81670rcu_preempt27863-21ssh09:57:220
81670rcu_preempt19078-21ssh10:42:550
81670rcu_preempt12905-21ssh11:33:290
81670rcu_preempt0-21swapper/107:55:131
81670rcu_preempt0-21swapper/012:26:410
81670rcu_preempt0-21swapper/011:40:460
81670rcu_preempt0-21swapper/011:11:320
81670rcu_preempt0-21swapper/011:11:320
81670rcu_preempt0-21swapper/010:05:450
81670rcu_preempt0-21swapper/007:10:380
81660rcu_preempt9241-21ssh10:24:550
81660rcu_preempt27129-21apt-get08:35:250
81660rcu_preempt15138-21ssh11:37:040
81660rcu_preempt0-21swapper/112:44:071
81660rcu_preempt0-21swapper/112:17:051
81660rcu_preempt0-21swapper/111:40:181
81660rcu_preempt0-21swapper/110:33:001
81660rcu_preempt0-21swapper/010:38:450
81660rcu_preempt0-21swapper/009:14:170
81660rcu_preempt0-21swapper/009:06:420
81660rcu_preempt0-21swapper/008:46:430
81660rcu_preempt0-21swapper/008:30:160
81660rcu_preempt0-21swapper/007:53:190
81660rcu_preempt0-21swapper/007:27:480
81650rcu_preempt8973-21ps07:20:361
81650rcu_preempt5622-21ssh11:20:080
81650rcu_preempt30017-21ssh11:04:391
81650rcu_preempt0-21swapper/111:55:141
81650rcu_preempt0-21swapper/109:35:391
81650rcu_preempt0-21swapper/108:34:571
81650rcu_preempt0-21swapper/108:25:331
81650rcu_preempt0-21swapper/108:10:281
81650rcu_preempt0-21swapper/010:53:290
81650rcu_preempt0-21swapper/008:30:000
81650rcu_preempt0-21swapper/007:21:010
81640rcu_preempt27637-21ssh11:00:141
81640rcu_preempt0-21swapper/112:24:321
81640rcu_preempt0-21swapper/112:02:371
81640rcu_preempt0-21swapper/109:53:161
81640rcu_preempt0-21swapper/008:51:100
81640rcu_preempt0-21swapper/007:17:400
81630rcu_preempt22329-21diskstats08:15:280
81630rcu_preempt0-21swapper/111:10:141
81630rcu_preempt0-21swapper/110:53:131
81630rcu_preempt0-21swapper/110:20:281
81630rcu_preempt0-21swapper/110:15:271
81630rcu_preempt0-21swapper/109:24:441
81630rcu_preempt0-21swapper/109:12:571
81630rcu_preempt0-21swapper/108:57:571
81630rcu_preempt0-21swapper/108:42:391
81630rcu_preempt0-21swapper/108:21:061
81630rcu_preempt0-21swapper/108:16:541
81630rcu_preempt0-21swapper/108:05:241
81630rcu_preempt0-21swapper/107:45:341
81620rcu_preempt21072-21diskstats08:10:280
81620rcu_preempt0-21swapper/109:30:331
81610rcu_preempt986-21ssh12:12:421
81610rcu_preempt20048-21irqstats08:05:320
81600rcu_preempt19213-21python08:00:370
81590rcu_preempt32653-21sh10:06:071
81590rcu_preempt29358-21fw_packets12:05:281
81590rcu_preempt20752-21ssh09:44:590
81590rcu_preempt0-21swapper/111:38:451
81590rcu_preempt0-21swapper/110:45:391
81580rcu_preempt9951-21ssh11:27:161
147850580irq/30-eth0-tx-15959-21kworker/1:011:50:281
81560rcu_preempt23604-21fw_conntrack08:20:290
81560rcu_preempt0-21swapper/109:15:281
81560rcu_preempt0-21swapper/108:00:371
81560rcu_preempt0-21swapper/107:40:281
81550rcu_preempt0-21swapper/107:50:321
81540rcu_preempt0-21swapper/109:09:321
81530rcu_preempt27180-21basename09:55:391
81530rcu_preempt0-21swapper/109:40:291
81520rcu_preempt12067-21latency_hist12:35:141
81520rcu_preempt0-21swapper/110:27:361
81510rcu_preempt6769-21latency_hist07:15:141
89850500irq/17-ehci_hcd0-21swapper/107:30:351
81490rcu_preempt0-21swapper/107:30:141
81480rcu_preempt30781-21munin-run08:50:141
81480rcu_preempt2212-21sshd09:03:161
81480rcu_preempt13333-21ssh11:35:021
81480rcu_preempt0-21swapper/111:47:161
6805994845cyclictest945-21usb-storage07:45:370
6805994845cyclictest945-21usb-storage07:33:050
81470rcu_preempt0-21swapper/108:50:301
6805994744cyclictest945-21usb-storage07:40:330
81450rcu_preempt0-21swapper/107:35:301
89850420irq/17-ehci_hcd945-21usb-storage09:03:320
81320rcu_preempt12715-21ntp_states07:35:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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