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2026-01-08 - 20:46
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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 Thu Jan 08, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt19-21ksoftirqd/111:58:511
81820rcu_preempt14116-21diskmemload11:20:181
81740rcu_preempt0-21swapper/009:26:330
81720rcu_preempt29475-21apt-get11:31:201
81720rcu_preempt2666-21ssh09:46:201
81720rcu_preempt23197-21apt-get12:16:201
81710rcu_preempt24783-21ssh12:17:500
81700rcu_preempt7656-21ssh10:51:260
81700rcu_preempt5684-21sh10:46:541
81700rcu_preempt19243-21ssh09:18:300
81700rcu_preempt15773-21ssh10:10:040
81700rcu_preempt14116-21diskmemload09:21:210
81700rcu_preempt0-21swapper/007:46:420
81690rcu_preempt32726-21ssh10:38:340
81690rcu_preempt28995-21ssh09:35:560
81690rcu_preempt17502-21apt-get12:06:211
81690rcu_preempt14116-21diskmemload11:41:251
81690rcu_preempt13024-21ssh11:57:010
81680rcu_preempt7094-21ssh09:52:150
81680rcu_preempt24517-21diskmemload09:26:491
81680rcu_preempt2367-21apt-get12:36:211
81680rcu_preempt19675-21ssh11:13:320
81680rcu_preempt11804-21ssh11:00:560
81670rcu_preempt9148-21fw_forwarded_lo11:51:251
81670rcu_preempt3860-21ssh12:37:340
81670rcu_preempt30519-21ssh10:35:410
81670rcu_preempt29996-21apt-get08:01:230
81670rcu_preempt26588-21ssh10:27:220
81670rcu_preempt22152-21ssh11:17:040
81670rcu_preempt0-21swapper/110:04:031
81670rcu_preempt0-21swapper/012:15:350
81670rcu_preempt0-21swapper/011:25:190
81670rcu_preempt0-21swapper/011:01:100
81660rcu_preempt25819-21mailstats07:41:321
81660rcu_preempt1900-21ssh09:44:370
81660rcu_preempt16905-21ssh09:15:300
81660rcu_preempt16453-21ssh12:03:450
81660rcu_preempt147950irq/31-eth0-tx-07:06:230
81660rcu_preempt10045-21ssh11:51:390
81660rcu_preempt0-21swapper/112:21:251
81660rcu_preempt0-21swapper/111:21:181
81660rcu_preempt0-21swapper/109:55:471
81660rcu_preempt0-21swapper/011:34:120
81650rcu_preempt903-21ssh12:32:211
81650rcu_preempt744-21ssh12:31:530
81650rcu_preempt31349-21ssh09:39:050
81650rcu_preempt18910-21ssh12:07:150
81650rcu_preempt1304-21ssh11:37:011
81650rcu_preempt0-21swapper/111:30:351
81650rcu_preempt0-21swapper/110:11:231
81640rcu_preempt0-21swapper/112:14:121
81640rcu_preempt0-21swapper/112:02:531
81640rcu_preempt0-21swapper/111:48:371
81640rcu_preempt0-21swapper/111:11:161
81640rcu_preempt0-21swapper/111:05:171
81640rcu_preempt0-21swapper/110:38:581
81640rcu_preempt0-21swapper/110:29:171
81640rcu_preempt0-21swapper/110:22:481
81640rcu_preempt0-21swapper/110:18:011
81640rcu_preempt0-21swapper/109:40:371
81640rcu_preempt0-21swapper/109:18:031
81640rcu_preempt0-21swapper/107:08:131
81640rcu_preempt0-21swapper/011:45:430
89850630irq/17-ehci_hcd19-21ksoftirqd/109:11:321
81630rcu_preempt21312-21df_inode07:26:240
81630rcu_preempt10267-21users08:51:350
81630rcu_preempt0-21swapper/112:28:211
81630rcu_preempt0-21swapper/110:44:051
81630rcu_preempt0-21swapper/109:36:011
81630rcu_preempt0-21swapper/108:08:441
81630rcu_preempt0-21swapper/107:16:271
81620rcu_preempt7140-21irqstats08:41:280
81620rcu_preempt5040-21python08:31:350
81620rcu_preempt24732-21users07:36:340
81620rcu_preempt0-21swapper/111:09:481
81620rcu_preempt0-21swapper/110:35:591
81620rcu_preempt0-21swapper/110:06:341
81620rcu_preempt0-21swapper/109:56:401
81620rcu_preempt0-21swapper/109:07:331
81620rcu_preempt0-21swapper/108:56:281
81620rcu_preempt0-21swapper/108:22:321
81620rcu_preempt0-21swapper/108:06:001
81620rcu_preempt0-21swapper/107:53:201
81620rcu_preempt0-21swapper/107:26:341
81610rcu_preempt0-21swapper/110:56:211
81610rcu_preempt0-21swapper/108:48:141
81610rcu_preempt0-21swapper/108:36:181
81610rcu_preempt0-21swapper/107:59:531
81610rcu_preempt0-21swapper/107:47:541
81600rcu_preempt454-21df_inode08:16:240
81600rcu_preempt2957-21fw_conntrack09:46:240
81600rcu_preempt22392-21diskstats10:21:240
81590rcu_preempt9576-21ssh09:59:210
89850580irq/17-ehci_hcd21610-21ssh10:20:200
81580rcu_preempt7635-21rm11:48:180
81570rcu_preempt26360-21df_inode12:21:230
81570rcu_preempt0-21swapper/108:31:311
81570rcu_preempt0-21swapper/011:10:340
89850560irq/17-ehci_hcd0-21swapper/107:36:521
81560rcu_preempt31678-21fw_conntrack08:11:210
81560rcu_preempt28198-21ssh11:28:040
89850550irq/17-ehci_hcd945-21usb-storage08:11:311
81550rcu_preempt6463-21users08:36:340
81550rcu_preempt3579-21ntp_states08:26:310
81550rcu_preempt12678-21ssh10:04:400
81550rcu_preempt0-21swapper/109:46:101
81540rcu_preempt3625-21ssh10:44:260
81540rcu_preempt31019-21ssh12:28:520
81540rcu_preempt0-21swapper/108:44:171
81530rcu_preempt1774-21ssh11:38:240
81520rcu_preempt16679-21fw_forwarded_lo10:11:260
81520rcu_preempt14116-21diskmemload10:53:201
81520rcu_preempt13706-21ntp_states09:06:300
81520rcu_preempt10921-21irqstats08:56:290
81520rcu_preempt10311-21munin-run08:56:091
147850520irq/30-eth0-tx-945-21usb-storage07:52:550
81490rcu_preempt14116-21diskmemload10:47:200
81480rcu_preempt0-21swapper/107:21:251
81480rcu_preempt0-21swapper/107:11:291
81470rcu_preempt20995-21latency09:21:291
81470rcu_preempt0-21swapper/108:26:211
17134994643cyclictest945-21usb-storage08:21:310
17134994643cyclictest945-21usb-storage07:22:340
81440rcu_preempt0-21swapper/109:01:331
81440rcu_preempt0-21swapper/107:31:231
89850420irq/17-ehci_hcd945-21usb-storage09:01:230
17134994240cyclictest945-21usb-storage08:46:240
81410rcu_preempt0-21swapper/108:18:421
147950410irq/31-eth0-tx-0-21swapper/007:16:330
89850380irq/17-ehci_hcd945-21usb-storage07:12:240
1599380migration/028712-21/usr/sbin/munin07:56:190
89850370irq/17-ehci_hcd0-21swapper/007:42:450
17134993734cyclictest945-21usb-storage07:34:370
89850350irq/17-ehci_hcd945-21usb-storage08:10:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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