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2025-12-28 - 15:55
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sun Dec 28, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt14122-21missed_timers12:26:021
81740rcu_preempt24482-21cat08:46:041
81700rcu_preempt0-21swapper/008:50:380
81690rcu_preempt23599-1kworker/1:1H09:54:531
81690rcu_preempt22509-1kworker/1:0H11:53:551
81680rcu_preempt0-21swapper/111:37:571
81680rcu_preempt0-21swapper/107:50:561
81680rcu_preempt0-21swapper/010:26:090
81670rcu_preempt8087-21df_inode12:15:561
81670rcu_preempt29806-21diskmemload11:58:421
81670rcu_preempt0-21swapper/109:26:031
81670rcu_preempt0-21swapper/109:21:391
81670rcu_preempt0-21swapper/011:41:230
81660rcu_preempt32132-21df_abs07:10:531
81660rcu_preempt14918-21awk11:30:580
81660rcu_preempt0-21swapper/110:36:061
81660rcu_preempt0-21swapper/108:40:491
81660rcu_preempt0-21swapper/012:26:270
81660rcu_preempt0-21swapper/011:45:570
81650rcu_preempt20330-21ssh10:44:210
81650rcu_preempt20289-21ssh10:44:121
81650rcu_preempt14315-21sendmail_mailqu08:06:030
81650rcu_preempt0-21swapper/111:12:111
81650rcu_preempt0-21swapper/110:31:511
81650rcu_preempt0-21swapper/110:19:161
81640rcu_preempt9278-21mailstats07:46:031
81640rcu_preempt21109-21df_abs10:45:541
81640rcu_preempt0-21swapper/111:09:271
81640rcu_preempt0-21swapper/109:36:571
81630rcu_preempt28027-21ssh10:56:101
81630rcu_preempt22455-21ssh11:44:271
81630rcu_preempt12456-21df_abs08:00:550
81630rcu_preempt0-21swapper/109:47:321
81630rcu_preempt0-21swapper/011:58:430
81630rcu_preempt0-21swapper/009:32:050
81620rcu_preempt9232-21ssh10:25:390
81620rcu_preempt3393-21cpu07:25:511
81620rcu_preempt2129-21ssh09:16:501
81620rcu_preempt0-21swapper/111:03:351
81620rcu_preempt0-21swapper/107:43:511
81620rcu_preempt0-21swapper/009:43:030
81620rcu_preempt0-21swapper/007:45:520
147950620irq/31-eth0-tx-0-21swapper/011:07:430
81610rcu_preempt30025-21ssh10:05:431
81610rcu_preempt11518-21cut12:21:030
81610rcu_preempt0-21swapper/109:58:511
81610rcu_preempt0-21swapper/107:40:391
81610rcu_preempt0-21swapper/107:34:521
81610rcu_preempt0-21swapper/012:11:050
81600rcu_preempt2741-21ssh10:14:061
81600rcu_preempt12260-21ssh12:22:361
81600rcu_preempt0-21swapper/110:55:381
81600rcu_preempt0-21swapper/109:42:471
81600rcu_preempt0-21swapper/012:04:260
81600rcu_preempt0-21swapper/011:27:490
81600rcu_preempt0-21swapper/010:54:130
81600rcu_preempt0-21swapper/009:00:590
81600rcu_preempt0-21swapper/008:40:540
81590rcu_preempt8550-21ssh09:28:210
81590rcu_preempt8266-21ssh11:20:101
81590rcu_preempt25123-21ssh11:49:011
81590rcu_preempt20464-21ssh12:36:211
81590rcu_preempt16746-21ssh11:34:531
81590rcu_preempt13096-21ssh11:27:071
81590rcu_preempt0-21swapper/111:20:581
81590rcu_preempt0-21swapper/110:25:461
81590rcu_preempt0-21swapper/108:50:451
81590rcu_preempt0-21swapper/108:06:041
81580rcu_preempt7934-21ssh10:21:541
81580rcu_preempt3907-21ssh11:11:040
81580rcu_preempt30262-21df_inode09:10:531
81580rcu_preempt28769-21ssh10:58:360
81580rcu_preempt23284-21ssh10:49:540
81580rcu_preempt21064-21latency_hist08:35:390
81580rcu_preempt21052-21ssh09:50:120
81580rcu_preempt18966-21ssh11:37:590
81580rcu_preempt0-21swapper/112:11:271
81580rcu_preempt0-21swapper/112:08:171
81580rcu_preempt0-21swapper/109:30:491
81580rcu_preempt0-21swapper/108:55:561
81580rcu_preempt0-21swapper/011:21:030
81580rcu_preempt0-21swapper/010:37:560
81580rcu_preempt0-21swapper/009:56:070
81570rcu_preempt8322-21ssh11:20:210
81570rcu_preempt3042-21ssh09:19:160
81570rcu_preempt29856-21ssh10:05:370
81570rcu_preempt27580-21ssh10:00:591
81570rcu_preempt18780-21diskstats08:25:541
81570rcu_preempt18099-21ssh12:32:551
81570rcu_preempt14579-21ssh10:34:380
81570rcu_preempt0-21swapper/112:01:111
81570rcu_preempt0-21swapper/109:05:511
81570rcu_preempt0-21swapper/012:34:230
81570rcu_preempt0-21swapper/012:16:270
81570rcu_preempt0-21swapper/009:11:200
81570rcu_preempt0-21swapper/008:51:010
81570rcu_preempt0-21swapper/007:26:010
147650570irq/28-eth0-rx-2138-21snmpd07:05:560
81560rcu_preempt5744-21ssh10:19:070
81560rcu_preempt25611-21kworker/1:007:05:591
81560rcu_preempt0-21swapper/108:30:581
81560rcu_preempt0-21swapper/012:36:230
81560rcu_preempt0-21swapper/011:51:050
81560rcu_preempt0-21swapper/008:31:450
81550rcu_preempt5014-21ssh09:21:160
81550rcu_preempt14359-21ssh09:37:470
81550rcu_preempt11390-21if_eth107:55:581
81550rcu_preempt0-21swapper/108:15:581
81550rcu_preempt0-21swapper/108:03:251
81550rcu_preempt0-21swapper/010:15:330
81550rcu_preempt0-21swapper/009:51:020
81540rcu_preempt4299-21ssh12:09:350
81540rcu_preempt31678-21ssh11:04:060
81540rcu_preempt15833-21sshd08:11:081
81540rcu_preempt1537-21ntp_states07:16:021
81540rcu_preempt0-21swapper/008:30:000
81540rcu_preempt0-21swapper/007:40:560
31828995444cyclictest945-21usb-storage09:04:431
81530rcu_preempt30035-21ssh10:05:450
81530rcu_preempt0-21swapper/108:35:531
81530rcu_preempt0-21swapper/108:23:181
81530rcu_preempt0-21swapper/008:13:260
81520rcu_preempt0-21swapper/007:10:590
81510rcu_preempt0-21swapper/008:57:220
81500rcu_preempt0-21swapper/007:53:310
81490rcu_preempt0-21swapper/107:21:051
81490rcu_preempt0-21swapper/007:57:230
81480rcu_preempt5366-21ntp_states07:31:000
89850430irq/17-ehci_hcd6591-21awk07:36:020
81430rcu_preempt2117-21apt-get07:21:010
31827994212cyclictest0-21swapper/008:16:370
31827994211cyclictest0-21swapper/009:10:230
31827994010cyclictest0-21swapper/007:18:070
89850360irq/17-ehci_hcd945-21usb-storage08:22:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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