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2026-06-28 - 21:20
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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 all highest latencies:
System rackcslot3.osadl.org (updated Sun Jun 28, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
899501050irq/17-ehci_hcd945-21usb-storage07:13:310
81810rcu_preempt19-21ksoftirqd/109:45:591
146650790irq/31-eth0-tx-41ktimersoftd/012:38:040
81770rcu_preempt0-21swapper/107:10:211
81750rcu_preempt0-21swapper/111:50:531
89950740irq/17-ehci_hcd3558-21ssh12:25:121
81720rcu_preempt13874-21sh10:40:330
81720rcu_preempt0-21swapper/011:28:080
81720rcu_preempt0-21swapper/010:30:560
146250720irq/28-eth0-rx-41ktimersoftd/011:34:450
81700rcu_preempt28399-1kworker/0:2H09:23:170
81700rcu_preempt0-21swapper/011:20:150
81700rcu_preempt0-21swapper/010:17:090
81690rcu_preempt15101-21sh09:43:430
81690rcu_preempt0-21swapper/108:10:271
81680rcu_preempt27317-21sh12:07:590
81680rcu_preempt2405-21sh12:21:300
81680rcu_preempt11368-21apt-get07:55:130
81680rcu_preempt0-21swapper/110:55:261
81680rcu_preempt0-21swapper/109:19:131
81680rcu_preempt0-21swapper/107:25:151
81670rcu_preempt30896-21sshd11:14:270
81670rcu_preempt3-21ksoftirqd/009:58:460
81670rcu_preempt0-21swapper/109:37:301
81660rcu_preempt30957-21ssh11:14:391
81660rcu_preempt24897-21ssh11:01:521
81660rcu_preempt0-21swapper/110:01:141
81650rcu_preempt0-21swapper/108:50:521
81650rcu_preempt0-21swapper/107:47:461
81650rcu_preempt0-21swapper/012:12:360
81650rcu_preempt0-21swapper/011:19:420
81640rcu_preempt0-21swapper/110:10:451
81630rcu_preempt28795-21ssh10:09:171
81630rcu_preempt12246-21ntp_states12:40:270
81630rcu_preempt10248-21ssh09:35:110
81630rcu_preempt0-21swapper/112:06:531
81630rcu_preempt0-21swapper/108:15:161
81630rcu_preempt0-21swapper/012:15:160
81630rcu_preempt0-21swapper/010:53:510
81630rcu_preempt0-21swapper/009:05:180
81630rcu_preempt0-21swapper/008:40:030
81620rcu_preempt7762-21ssh12:31:541
81620rcu_preempt6503-21ssh10:27:221
81620rcu_preempt6013-21switchtime07:30:290
81620rcu_preempt5946-21ssh11:27:381
81620rcu_preempt32029-21df_abs10:15:171
81620rcu_preempt23335-21ssh09:59:041
81620rcu_preempt2192-21snmpd12:15:321
81620rcu_preempt13346-21ntpq08:00:241
81620rcu_preempt0-21swapper/110:51:151
81620rcu_preempt0-21swapper/107:55:231
81620rcu_preempt0-21swapper/007:35:240
81610rcu_preempt9101-21ssh09:31:511
81610rcu_preempt15892-21uname10:45:220
81610rcu_preempt0-21swapper/111:18:571
81610rcu_preempt0-21swapper/111:09:411
81610rcu_preempt0-21swapper/110:20:191
81610rcu_preempt0-21swapper/012:03:310
81600rcu_preempt7811-21ssh12:32:040
81600rcu_preempt24544-21ssh12:02:381
81600rcu_preempt0-21swapper/111:57:491
81600rcu_preempt0-21swapper/111:42:471
81600rcu_preempt0-21swapper/111:23:351
81600rcu_preempt0-21swapper/110:30:461
81600rcu_preempt0-21swapper/109:53:391
81600rcu_preempt0-21swapper/107:35:171
81600rcu_preempt0-21swapper/009:34:390
146450600irq/29-eth0-rx-13379-21kworker/0:009:49:260
81590rcu_preempt9990-21apt10:35:141
81590rcu_preempt19176-21ssh11:52:230
81590rcu_preempt16075-21ssh11:45:461
81590rcu_preempt15048-21ssh09:43:291
81590rcu_preempt11335-21ssh11:38:010
81590rcu_preempt10672-21ssh11:35:341
81590rcu_preempt0-21swapper/112:12:281
81590rcu_preempt0-21swapper/111:30:041
81590rcu_preempt0-21swapper/109:21:021
81590rcu_preempt0-21swapper/107:44:151
81590rcu_preempt0-21swapper/011:47:010
81590rcu_preempt0-21swapper/011:01:200
81590rcu_preempt0-21swapper/010:02:490
81580rcu_preempt27250-21ssh11:06:050
81580rcu_preempt2442-21if_can110:20:190
81580rcu_preempt14587-21ssh10:42:541
81580rcu_preempt11298-21ssh10:36:000
81580rcu_preempt10328-21ssh12:36:231
81580rcu_preempt0-21swapper/112:41:231
81580rcu_preempt0-21swapper/110:48:471
81580rcu_preempt0-21swapper/108:44:011
81580rcu_preempt0-21swapper/107:15:181
81580rcu_preempt0-21swapper/011:58:450
81580rcu_preempt0-21swapper/010:56:080
81580rcu_preempt0-21swapper/009:15:200
81580rcu_preempt0-21swapper/008:50:170
81580rcu_preempt0-21swapper/007:45:210
81570rcu_preempt13506-21mailstats08:00:270
81570rcu_preempt0-21swapper/109:26:441
81570rcu_preempt0-21swapper/108:58:511
81570rcu_preempt0-21swapper/108:38:081
81570rcu_preempt0-21swapper/108:25:551
81570rcu_preempt0-21swapper/108:20:271
81570rcu_preempt0-21swapper/108:08:041
81570rcu_preempt0-21swapper/010:10:510
81570rcu_preempt0-21swapper/009:28:400
81570rcu_preempt0-21swapper/009:00:530
81570rcu_preempt0-21swapper/008:35:300
1089995749cyclictest945-21usb-storage07:20:431
81560rcu_preempt31492-21diskmemload12:21:101
81560rcu_preempt30936-21memory09:10:221
81560rcu_preempt20131-21ssh09:52:260
81560rcu_preempt0-21swapper/107:54:581
81560rcu_preempt0-21swapper/010:07:220
81560rcu_preempt0-21swapper/008:55:220
81560rcu_preempt0-21swapper/007:50:230
81550rcu_preempt8734-21grep07:45:030
81550rcu_preempt6140-21ssh10:26:020
81550rcu_preempt19390-21if_eth108:25:210
81550rcu_preempt0-21swapper/109:01:141
81550rcu_preempt0-21swapper/108:33:191
81550rcu_preempt0-21swapper/012:25:050
81550rcu_preempt0-21swapper/008:10:190
81550rcu_preempt0-21swapper/007:19:280
81540rcu_preempt13363-21ssh11:40:470
81540rcu_preempt0-21swapper/008:45:270
81530rcu_preempt0-21swapper/109:06:221
81530rcu_preempt0-21swapper/008:20:340
81530rcu_preempt0-21swapper/008:16:270
81530rcu_preempt0-21swapper/008:05:380
81530rcu_preempt0-21swapper/007:29:270
81520rcu_preempt20963-21open_inodes08:30:260
81520rcu_preempt0-21swapper/009:13:540
1089995243cyclictest945-21usb-storage08:46:301
81500rcu_preempt2792-21fw_conntrack07:20:180
1089994845cyclictest945-21usb-storage07:30:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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