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2026-04-13 - 17:37
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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 100 highest latencies:
System rack4slot4.osadl.org (updated Mon Apr 13, 2026 12:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71760rcu_preempt0-21swapper/212:17:232
71760rcu_preempt0-21swapper/212:17:232
71760rcu_preempt0-21swapper/212:17:232
71630rcu_preempt0-21swapper/011:56:290
71630rcu_preempt0-21swapper/011:56:290
71600rcu_preempt0-21swapper/011:23:550
71600rcu_preempt0-21swapper/011:23:550
71600rcu_preempt0-21swapper/011:23:550
71530rcu_preempt0-21swapper/010:55:420
71530rcu_preempt0-21swapper/010:55:420
71500rcu_preempt0-21swapper/010:25:450
71500rcu_preempt0-21swapper/010:25:450
71490rcu_preempt0-21swapper/007:30:470
71490rcu_preempt0-21swapper/007:30:470
71440rcu_preempt4758-1kworker/1:0H09:42:181
71440rcu_preempt4758-1kworker/1:0H09:42:181
71440rcu_preempt4758-1kworker/1:0H09:42:181
71440rcu_preempt0-21swapper/210:47:322
71440rcu_preempt0-21swapper/210:47:322
257099443cyclictest11158-21df_inode07:42:332
257099443cyclictest11158-21df_inode07:42:332
257099443cyclictest11158-21df_inode07:42:332
71410rcu_preempt3418-1diskmemload12:07:422
71410rcu_preempt3418-1diskmemload12:07:422
71410rcu_preempt1402-21sh12:02:413
71410rcu_preempt1402-21sh12:02:413
71410rcu_preempt1402-21sh12:02:413
71410rcu_preempt0-21swapper/212:24:432
71410rcu_preempt0-21swapper/212:24:432
71410rcu_preempt0-21swapper/212:24:432
71410rcu_preempt0-21swapper/211:28:542
71410rcu_preempt0-21swapper/211:28:542
71410rcu_preempt0-21swapper/211:28:542
46450410irq/118-QManpo1244-2110:48:552
46450410irq/118-QManpo1244-2110:48:552
71400rcu_preempt2970-1kworker/3:0H10:25:123
71400rcu_preempt2970-1kworker/3:0H10:25:123
71400rcu_preempt10551-1kworker/1:3H09:27:481
71400rcu_preempt10551-1kworker/1:3H09:27:481
71400rcu_preempt10551-1kworker/1:3H09:27:481
71400rcu_preempt0-21swapper/211:03:472
71400rcu_preempt0-21swapper/211:03:472
71400rcu_preempt0-21swapper/211:03:472
71400rcu_preempt0-21swapper/108:04:251
71400rcu_preempt0-21swapper/108:04:251
71400rcu_preempt0-21swapper/108:04:251
100650400irq/38-i2c-mpc18109-21ssh10:36:540
100650400irq/38-i2c-mpc18109-21ssh10:36:540
100650400irq/38-i2c-mpc18109-21ssh10:36:540
71390rcu_preempt22911-21/usr/sbin/munin08:22:472
71390rcu_preempt22911-21/usr/sbin/munin08:22:472
71390rcu_preempt22911-21/usr/sbin/munin08:22:472
71390rcu_preempt15240-21ssh10:31:532
71390rcu_preempt15240-21ssh10:31:532
71390rcu_preempt0-21swapper/312:17:383
71390rcu_preempt0-21swapper/312:17:383
71390rcu_preempt0-21swapper/208:07:322
71390rcu_preempt0-21swapper/208:07:322
71390rcu_preempt0-21swapper/108:42:261
71390rcu_preempt0-21swapper/108:42:261
71390rcu_preempt0-21swapper/108:42:261
71390rcu_preempt0-21swapper/108:32:521
71390rcu_preempt0-21swapper/108:32:521
71390rcu_preempt0-21swapper/108:32:521
71390rcu_preempt0-21swapper/009:17:530
71390rcu_preempt0-21swapper/009:17:530
71390rcu_preempt0-21swapper/009:17:530
71390rcu_preempt0-21swapper/009:12:450
71390rcu_preempt0-21swapper/009:12:450
71390rcu_preempt0-21swapper/008:44:520
71390rcu_preempt0-21swapper/008:44:520
71390rcu_preempt0-21swapper/008:44:520
46050390irq/122-QManpo0-210
46050390irq/122-QManpo0-210
71380rcu_preempt29601-1wget10:57:322
71380rcu_preempt29601-1wget10:57:322
71380rcu_preempt29601-1wget10:57:322
71380rcu_preempt25441-1kworker/3:0H11:48:303
71380rcu_preempt25441-1kworker/3:0H11:48:303
71380rcu_preempt23880-21copy10:47:220
71380rcu_preempt23880-21copy10:47:220
71380rcu_preempt23880-21copy10:47:220
71380rcu_preempt0-21swapper/312:16:513
71380rcu_preempt0-21swapper/312:16:513
71380rcu_preempt0-21swapper/312:16:513
71380rcu_preempt0-21swapper/311:32:303
71380rcu_preempt0-21swapper/311:32:303
71380rcu_preempt0-21swapper/210:00:372
71380rcu_preempt0-21swapper/210:00:372
71380rcu_preempt0-21swapper/209:31:302
71380rcu_preempt0-21swapper/209:31:302
71380rcu_preempt0-21swapper/209:31:302
71380rcu_preempt0-21swapper/209:12:192
71380rcu_preempt0-21swapper/209:12:192
71380rcu_preempt0-21swapper/110:29:111
71380rcu_preempt0-21swapper/110:29:111
71380rcu_preempt0-21swapper/110:26:011
71380rcu_preempt0-21swapper/110:26:011
71380rcu_preempt0-21swapper/009:32:330
71380rcu_preempt0-21swapper/009:32:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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