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2025-11-20 - 19:57
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Thu Nov 20, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151850940irq/30-eth0-tx-14586-21kworker/1:109:34:541
81770rcu_preempt16912-21ssh09:30:171
89250730irq/17-ehci_hcd946-21usb-storage10:15:121
81730rcu_preempt16778-21head09:30:140
81710rcu_preempt14512-21sshd09:25:451
81700rcu_preempt19716-21ssh09:35:140
81700rcu_preempt0-21swapper/010:40:130
81690rcu_preempt0-21swapper/111:38:531
81690rcu_preempt0-21swapper/107:05:241
81690rcu_preempt0-21swapper/010:58:420
90050680irq/17-ehci_hcd946-21usb-storage07:50:180
81680rcu_preempt8734-21users07:15:220
81680rcu_preempt5026-1kworker/0:2H10:07:280
81680rcu_preempt11017-21ssh10:16:520
81680rcu_preempt0-21swapper/112:00:081
81680rcu_preempt0-21swapper/111:22:561
81670rcu_preempt4247-21munin-run09:09:530
81670rcu_preempt4123-21ssh12:00:150
81670rcu_preempt30075-21munin-run11:49:530
81670rcu_preempt26151-21ssh09:46:330
81670rcu_preempt11449-21ssh11:15:160
81660rcu_preempt24418-21latency_hist09:44:541
81660rcu_preempt20438-21apt10:34:530
81660rcu_preempt0-21swapper/111:30:101
81660rcu_preempt0-21swapper/111:27:191
81660rcu_preempt0-21swapper/110:37:101
81660rcu_preempt0-21swapper/108:35:341
81660rcu_preempt0-21swapper/011:41:370
81650rcu_preempt7184-21rm09:14:421
81650rcu_preempt11197-21awk09:20:141
81650rcu_preempt0-21swapper/112:21:241
81650rcu_preempt0-21swapper/110:50:371
81650rcu_preempt0-21swapper/009:17:340
81650rcu_preempt0-21swapper/007:05:100
81640rcu_preempt25259-21munin-run08:24:541
81640rcu_preempt0-21swapper/111:46:211
81640rcu_preempt0-21swapper/110:56:331
81640rcu_preempt0-21swapper/110:24:051
81640rcu_preempt0-21swapper/108:52:241
81640rcu_preempt0-21swapper/107:15:161
81640rcu_preempt0-21swapper/009:10:190
81630rcu_preempt28710-21sh09:50:311
81630rcu_preempt2235-21snmpd09:45:581
81630rcu_preempt13820-21if_eth011:20:130
81630rcu_preempt0-21swapper/111:42:051
81630rcu_preempt0-21swapper/111:00:501
81630rcu_preempt0-21swapper/110:33:191
81630rcu_preempt0-21swapper/108:45:081
81630rcu_preempt0-21swapper/107:30:101
81630rcu_preempt0-21swapper/107:10:151
81630rcu_preempt0-21swapper/010:29:340
90050620irq/17-ehci_hcd946-21usb-storage08:15:191
81620rcu_preempt3180-21threads11:00:200
81620rcu_preempt23894-21ssh12:38:030
81620rcu_preempt18941-21munin-run07:59:540
81620rcu_preempt13831-21munin-run07:39:540
81620rcu_preempt10057-21ssh11:13:361
81620rcu_preempt0-21swapper/112:30:421
81620rcu_preempt0-21swapper/109:55:371
81620rcu_preempt0-21swapper/108:10:521
81620rcu_preempt0-21swapper/010:12:590
81610rcu_preempt6639-21ssh11:06:351
81610rcu_preempt0-21swapper/112:27:331
81610rcu_preempt0-21swapper/110:26:221
81610rcu_preempt0-21swapper/108:25:091
81610rcu_preempt0-21swapper/108:03:321
81610rcu_preempt0-21swapper/107:20:061
81610rcu_preempt0-21swapper/011:05:100
81600rcu_preempt8638-21sed09:15:281
81600rcu_preempt7684-21ssh10:10:281
81600rcu_preempt0-21swapper/107:44:541
81600rcu_preempt0-21swapper/107:28:171
81600rcu_preempt0-21swapper/012:08:510
81600rcu_preempt0-21swapper/008:55:290
81600rcu_preempt0-21swapper/007:23:030
81590rcu_preempt31636-21ssh09:55:340
81590rcu_preempt27457-21ssh10:45:561
81590rcu_preempt0-21swapper/112:35:091
81590rcu_preempt0-21swapper/112:15:021
81590rcu_preempt0-21swapper/111:17:541
81590rcu_preempt0-21swapper/110:41:221
81590rcu_preempt0-21swapper/110:07:561
81590rcu_preempt0-21swapper/110:00:301
81590rcu_preempt0-21swapper/012:32:190
81590rcu_preempt0-21swapper/011:56:080
81590rcu_preempt0-21swapper/007:42:550
81590rcu_preempt0-21swapper/007:27:530
81580rcu_preempt6473-21ssh12:05:111
81580rcu_preempt10730-21fw_conntrack09:20:090
81580rcu_preempt0-21swapper/112:10:151
81580rcu_preempt0-21swapper/009:40:090
81580rcu_preempt0-21swapper/008:40:080
81580rcu_preempt0-21swapper/008:25:230
81570rcu_preempt31858-21ssh11:51:531
81570rcu_preempt30142-21ssh10:50:240
81570rcu_preempt15084-21ssh09:27:310
81570rcu_preempt12576-21munin-run07:34:540
81570rcu_preempt0-21swapper/111:54:581
81570rcu_preempt0-21swapper/108:40:081
81570rcu_preempt0-21swapper/008:30:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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