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2026-07-05 - 16:37
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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 Sun Jul 05, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt0-21swapper/011:55:060
89950790irq/17-ehci_hcd19-21ksoftirqd/109:18:321
81780rcu_preempt0-21swapper/010:07:520
146650760irq/31-eth0-tx-5426-21ssh09:16:150
146650730irq/31-eth0-tx-0-21swapper/009:45:550
81720rcu_preempt3975-21diskmemload11:30:241
81720rcu_preempt0-21swapper/008:05:550
81710rcu_preempt3975-21diskmemload10:33:540
81710rcu_preempt0-21swapper/008:40:560
81710rcu_preempt0-21swapper/007:40:320
89550700irq/17-ehci_hcd32746-21df_abs11:00:520
81700rcu_preempt16805-21sh10:31:591
81700rcu_preempt0-21swapper/112:00:591
81700rcu_preempt0-21swapper/011:05:560
81700rcu_preempt0-21swapper/009:35:590
81700rcu_preempt0-21swapper/009:27:070
81700rcu_preempt0-21swapper/008:00:480
81690rcu_preempt751-21munin-run10:05:380
81690rcu_preempt23360-21diskstats11:40:550
81690rcu_preempt20311-21diskstats11:35:530
81690rcu_preempt0-21swapper/108:20:581
81690rcu_preempt0-21swapper/107:11:001
81680rcu_preempt30443-21ssh10:56:020
81680rcu_preempt1823-21sh12:00:130
81680rcu_preempt15515-21ssh12:23:470
81680rcu_preempt0-21swapper/109:43:041
81680rcu_preempt0-21swapper/011:30:290
81680rcu_preempt0-21swapper/007:41:020
89950670irq/17-ehci_hcd0-21swapper/112:05:421
81670rcu_preempt22299-21if_err_wlan009:45:561
81670rcu_preempt22103-21ssh12:35:501
81670rcu_preempt0-21swapper/112:25:001
81670rcu_preempt0-21swapper/110:36:041
81660rcu_preempt27228-21mailstats08:36:020
81660rcu_preempt0-21swapper/110:51:191
81660rcu_preempt0-21swapper/009:59:540
81650rcu_preempt0-21swapper/112:40:511
81650rcu_preempt0-21swapper/109:35:091
81650rcu_preempt0-21swapper/009:42:400
81640rcu_preempt0-21swapper/111:40:571
81640rcu_preempt0-21swapper/107:45:371
81640rcu_preempt0-21swapper/011:45:590
81640rcu_preempt0-21swapper/011:12:290
89950630irq/17-ehci_hcd0-21swapper/007:10:560
81630rcu_preempt5099-21grep12:05:510
81630rcu_preempt29313-21if_err_wlan008:45:561
81630rcu_preempt0-21swapper/109:01:031
81620rcu_preempt9583-21latency_hist10:20:381
81620rcu_preempt6771-21ssh10:15:490
81620rcu_preempt0-21swapper/111:24:201
81620rcu_preempt0-21swapper/111:20:121
81620rcu_preempt0-21swapper/109:59:561
81620rcu_preempt0-21swapper/012:16:200
81620rcu_preempt0-21swapper/009:21:160
81620rcu_preempt0-21swapper/007:30:570
81610rcu_preempt9216-21rm12:11:421
81610rcu_preempt8733-21ssh09:21:541
81610rcu_preempt32133-21ssh11:00:051
81610rcu_preempt2965-21ssh11:05:481
81610rcu_preempt25890-21ssh10:48:351
81610rcu_preempt22416-21ssh10:41:311
81610rcu_preempt17650-21ssh12:26:231
81610rcu_preempt15065-21ssh10:30:141
81610rcu_preempt0-21swapper/109:51:301
81610rcu_preempt0-21swapper/108:10:541
81610rcu_preempt0-21swapper/012:34:550
81610rcu_preempt0-21swapper/012:27:390
81600rcu_preempt19152-21ssh11:33:301
81600rcu_preempt12586-21ssh12:18:201
81600rcu_preempt0-21swapper/111:40:201
81600rcu_preempt0-21swapper/110:12:191
81600rcu_preempt0-21swapper/109:38:281
81600rcu_preempt0-21swapper/012:36:560
81600rcu_preempt0-21swapper/010:27:010
81600rcu_preempt0-21swapper/009:05:550
81590rcu_preempt8365-21ssh11:15:021
81590rcu_preempt5534-21rm10:12:150
81590rcu_preempt3975-21diskmemload11:24:280
81590rcu_preempt30123-21ssh11:51:501
81590rcu_preempt27904-21ssh11:48:291
81590rcu_preempt19475-21ssh10:36:380
81590rcu_preempt0-21swapper/111:00:481
81590rcu_preempt0-21swapper/110:17:261
81590rcu_preempt0-21swapper/110:06:001
81590rcu_preempt0-21swapper/110:01:011
81590rcu_preempt0-21swapper/109:26:391
81590rcu_preempt0-21swapper/108:15:541
81590rcu_preempt0-21swapper/108:15:541
81590rcu_preempt0-21swapper/107:54:571
81590rcu_preempt0-21swapper/107:30:581
81590rcu_preempt0-21swapper/107:25:581
81590rcu_preempt0-21swapper/012:40:530
89950580irq/17-ehci_hcd19-21ksoftirqd/108:35:501
81580rcu_preempt2460-21ssh12:00:560
81580rcu_preempt22829-21ssh10:42:440
81580rcu_preempt2192-21snmpd10:21:120
81580rcu_preempt19053-21ssh11:33:100
81580rcu_preempt0-21swapper/111:59:211
81580rcu_preempt0-21swapper/108:00:561
81580rcu_preempt0-21swapper/107:37:191
81580rcu_preempt0-21swapper/010:46:110
81580rcu_preempt0-21swapper/009:31:270
81570rcu_preempt8312-21sensors07:21:011
81570rcu_preempt0-21swapper/112:33:351
81570rcu_preempt0-21swapper/010:54:160
81570rcu_preempt0-21swapper/009:53:420
81570rcu_preempt0-21swapper/008:20:570
81570rcu_preempt0-21swapper/007:47:010
81560rcu_preempt9921-21ssh11:16:090
81560rcu_preempt31291-21munin-run08:55:380
81560rcu_preempt0-21swapper/109:13:591
81560rcu_preempt0-21swapper/108:55:481
81560rcu_preempt0-21swapper/108:40:541
81560rcu_preempt0-21swapper/108:34:041
81560rcu_preempt0-21swapper/107:45:551
81560rcu_preempt0-21swapper/008:10:550
146550560irq/30-eth0-tx-0-21swapper/009:13:550
81550rcu_preempt0-21swapper/108:51:161
81550rcu_preempt0-21swapper/009:01:060
81550rcu_preempt0-21swapper/007:25:350
81540rcu_preempt0-21swapper/107:58:031
81540rcu_preempt0-21swapper/012:14:350
81530rcu_preempt0-21swapper/008:25:390
81530rcu_preempt0-21swapper/007:27:490
81520rcu_preempt6859-21ntp_states07:16:001
81520rcu_preempt0-21swapper/007:51:590
81510rcu_preempt30036-21munin-run08:50:380
81510rcu_preempt0-21swapper/008:35:380
81500rcu_preempt2066-21irqstats09:05:581
81500rcu_preempt0-21swapper/007:59:490
81500rcu_preempt0-21swapper/007:19:170
81460rcu_preempt0-21swapper/108:25:551
6008994138cyclictest945-21usb-storage08:05:561
1599390migration/031692-21/usr/sbin/munin08:55:540
81370rcu_preempt22072-21/usr/sbin/munin08:16:010
81370rcu_preempt22072-21/usr/sbin/munin08:16:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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