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2026-04-13 - 13:56
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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 376 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
71380rcu_preempt0-21swapper/009:32:330
46050380irq/122-QManpo0-210
46050380irq/122-QManpo0-210
46050380irq/122-QManpo0-210
71370rcu_preempt24684-21ssh10:47:500
71370rcu_preempt24684-21ssh10:47:500
71370rcu_preempt1959-21runrttasks10:34:042
71370rcu_preempt1959-21runrttasks10:34:042
71370rcu_preempt1959-21runrttasks10:34:042
71370rcu_preempt15084-1kworker/3:1H10:37:473
71370rcu_preempt15084-1kworker/3:1H10:37:473
71370rcu_preempt15084-1kworker/3:1H10:37:473
71370rcu_preempt12212-21taskset10:25:472
71370rcu_preempt12212-21taskset10:25:472
71370rcu_preempt0-21swapper/311:19:443
71370rcu_preempt0-21swapper/311:19:443
71370rcu_preempt0-21swapper/308:37:203
71370rcu_preempt0-21swapper/308:37:203
71370rcu_preempt0-21swapper/308:37:203
71370rcu_preempt0-21swapper/308:07:213
71370rcu_preempt0-21swapper/308:07:213
71370rcu_preempt0-21swapper/308:07:213
71370rcu_preempt0-21swapper/212:32:362
71370rcu_preempt0-21swapper/212:32:362
71370rcu_preempt0-21swapper/212:04:432
71370rcu_preempt0-21swapper/212:04:432
71370rcu_preempt0-21swapper/212:04:432
71370rcu_preempt0-21swapper/211:23:232
71370rcu_preempt0-21swapper/211:23:232
71370rcu_preempt0-21swapper/211:23:232
71370rcu_preempt0-21swapper/210:55:452
71370rcu_preempt0-21swapper/210:55:452
71370rcu_preempt0-21swapper/209:44:102
71370rcu_preempt0-21swapper/209:44:102
71370rcu_preempt0-21swapper/209:44:102
71370rcu_preempt0-21swapper/209:12:282
71370rcu_preempt0-21swapper/209:12:282
71370rcu_preempt0-21swapper/208:59:142
71370rcu_preempt0-21swapper/208:59:142
71370rcu_preempt0-21swapper/112:03:511
71370rcu_preempt0-21swapper/112:03:511
71370rcu_preempt0-21swapper/112:03:511
71370rcu_preempt0-21swapper/111:15:071
71370rcu_preempt0-21swapper/111:15:071
71370rcu_preempt0-21swapper/111:15:071
71370rcu_preempt0-21swapper/109:22:261
71370rcu_preempt0-21swapper/109:22:261
71370rcu_preempt0-21swapper/109:22:261
71370rcu_preempt0-21swapper/012:37:370
71370rcu_preempt0-21swapper/012:37:370
71370rcu_preempt0-21swapper/009:26:300
71370rcu_preempt0-21swapper/009:26:300
71370rcu_preempt0-21swapper/009:26:300
46250370irq/120-QManpo0-2110:48:551
46250370irq/120-QManpo0-2110:48:551
46050370irq/122-QManpo22953-10
46050370irq/122-QManpo22953-10
140032370sleep012072-1kworker/0:1H12:25:340
140032370sleep012072-1kworker/0:1H12:25:340
140032370sleep012072-1kworker/0:1H12:25:340
104142370sleep04776-1kworker/0:2H12:18:210
104142370sleep04776-1kworker/0:2H12:18:210
71360rcu_preempt475-21sh10:04:031
71360rcu_preempt475-21sh10:04:031
71360rcu_preempt475-21sh10:04:031
71360rcu_preempt32255-21sendmail-msp11:02:231
71360rcu_preempt32255-21sendmail-msp11:02:231
71360rcu_preempt32255-21sendmail-msp11:02:231
71360rcu_preempt20477-1kworker/1:1H11:48:251
71360rcu_preempt20477-1kworker/1:1H11:48:251
71360rcu_preempt1958-21snmpd12:27:353
71360rcu_preempt1958-21snmpd12:27:353
71360rcu_preempt18978-21ssh09:38:512
71360rcu_preempt18978-21ssh09:38:512
71360rcu_preempt18978-21ssh09:38:512
71360rcu_preempt17540-21ssh11:32:581
71360rcu_preempt17540-21ssh11:32:581
71360rcu_preempt0-21swapper/309:25:583
71360rcu_preempt0-21swapper/309:25:583
71360rcu_preempt0-21swapper/309:25:583
71360rcu_preempt0-21swapper/309:19:463
71360rcu_preempt0-21swapper/309:19:463
71360rcu_preempt0-21swapper/309:19:463
71360rcu_preempt0-21swapper/212:30:022
71360rcu_preempt0-21swapper/212:30:022
71360rcu_preempt0-21swapper/211:37:352
71360rcu_preempt0-21swapper/211:37:352
71360rcu_preempt0-21swapper/211:09:292
71360rcu_preempt0-21swapper/211:09:292
71360rcu_preempt0-21swapper/211:09:292
71360rcu_preempt0-21swapper/210:46:022
71360rcu_preempt0-21swapper/210:46:022
71360rcu_preempt0-21swapper/210:46:022
71360rcu_preempt0-21swapper/209:48:482
71360rcu_preempt0-21swapper/209:48:482
71360rcu_preempt0-21swapper/209:26:252
71360rcu_preempt0-21swapper/209:26:252
71360rcu_preempt0-21swapper/209:26:252
71360rcu_preempt0-21swapper/207:50:042
71360rcu_preempt0-21swapper/207:50:042
71360rcu_preempt0-21swapper/207:34:502
71360rcu_preempt0-21swapper/207:34:502
71360rcu_preempt0-21swapper/207:23:272
71360rcu_preempt0-21swapper/207:23:272
71360rcu_preempt0-21swapper/207:15:092
71360rcu_preempt0-21swapper/207:15:092
71360rcu_preempt0-21swapper/112:09:561
71360rcu_preempt0-21swapper/112:09:561
71360rcu_preempt0-21swapper/111:02:271
71360rcu_preempt0-21swapper/111:02:271
71360rcu_preempt0-21swapper/111:02:271
71360rcu_preempt0-21swapper/110:45:311
71360rcu_preempt0-21swapper/110:45:311
71360rcu_preempt0-21swapper/110:45:311
71360rcu_preempt0-21swapper/109:42:371
71360rcu_preempt0-21swapper/109:42:371
71360rcu_preempt0-21swapper/109:42:371
71360rcu_preempt0-21swapper/011:40:520
71360rcu_preempt0-21swapper/011:40:520
71360rcu_preempt0-21swapper/011:29:330
71360rcu_preempt0-21swapper/011:29:330
71360rcu_preempt0-21swapper/011:29:330
71360rcu_preempt0-21swapper/011:03:330
71360rcu_preempt0-21swapper/011:03:330
71360rcu_preempt0-21swapper/011:03:330
71360rcu_preempt0-21swapper/009:53:290
71360rcu_preempt0-21swapper/009:53:290
71360rcu_preempt0-21swapper/009:48:210
71360rcu_preempt0-21swapper/009:48:210
71360rcu_preempt0-21swapper/009:47:260
46050360irq/122-QManpo567-2110:48:550
46050360irq/122-QManpo567-2110:48:550
46050360irq/122-QManpo32762-2110:48:550
46050360irq/122-QManpo32762-2110:48:550
46050360irq/122-QManpo32762-2110:48:550
46050360irq/122-QManpo16541-2110:48:550
46050360irq/122-QManpo16541-2110:48:550
46050360irq/122-QManpo13518-2110:48:550
46050360irq/122-QManpo13518-2110:48:550
46050360irq/122-QManpo13518-2110:48:550
46050360irq/122-QManpo12726-2110:48:550
46050360irq/122-QManpo12726-2110:48:550
46050360irq/122-QManpo10809-2110:48:550
46050360irq/122-QManpo10809-2110:48:550
46050360irq/122-QManpo10139-2110:48:550
46050360irq/122-QManpo10139-2110:48:550
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
99750350irq/38-i2c-mpc0-21swapper/108:16:221
99750350irq/38-i2c-mpc0-21swapper/108:16:221
71350rcu_preempt30031-21chrt11:56:392
71350rcu_preempt30031-21chrt11:56:392
71350rcu_preempt27611-21taskset08:42:253
71350rcu_preempt27611-21taskset08:42:253
71350rcu_preempt27611-21taskset08:42:253
71350rcu_preempt26757-21users09:52:482
71350rcu_preempt26757-21users09:52:482
71350rcu_preempt23370-21latency_hist08:27:220
71350rcu_preempt23370-21latency_hist08:27:220
71350rcu_preempt23370-21latency_hist08:27:220
71350rcu_preempt21934-1sh12:39:322
71350rcu_preempt21934-1sh12:39:322
71350rcu_preempt1622-21munin-plugin-st10:07:182
71350rcu_preempt1622-21munin-plugin-st10:07:182
71350rcu_preempt1622-21munin-plugin-st10:07:182
71350rcu_preempt11745-21proc_pri11:22:421
71350rcu_preempt11745-21proc_pri11:22:421
71350rcu_preempt11745-21proc_pri11:22:421
71350rcu_preempt0-21swapper/311:55:013
71350rcu_preempt0-21swapper/311:55:013
71350rcu_preempt0-21swapper/311:30:263
71350rcu_preempt0-21swapper/311:30:263
71350rcu_preempt0-21swapper/311:30:263
71350rcu_preempt0-21swapper/310:53:423
71350rcu_preempt0-21swapper/310:53:423
71350rcu_preempt0-21swapper/309:30:433
71350rcu_preempt0-21swapper/309:30:433
71350rcu_preempt0-21swapper/309:30:433
71350rcu_preempt0-21swapper/212:17:592
71350rcu_preempt0-21swapper/212:17:592
71350rcu_preempt0-21swapper/211:47:342
71350rcu_preempt0-21swapper/211:47:342
71350rcu_preempt0-21swapper/211:42:322
71350rcu_preempt0-21swapper/211:42:322
71350rcu_preempt0-21swapper/210:39:222
71350rcu_preempt0-21swapper/210:39:222
71350rcu_preempt0-21swapper/210:39:222
71350rcu_preempt0-21swapper/210:12:542
71350rcu_preempt0-21swapper/210:12:542
71350rcu_preempt0-21swapper/210:12:542
71350rcu_preempt0-21swapper/210:11:492
71350rcu_preempt0-21swapper/210:11:492
71350rcu_preempt0-21swapper/210:11:492
71350rcu_preempt0-21swapper/209:37:182
71350rcu_preempt0-21swapper/209:37:182
71350rcu_preempt0-21swapper/209:37:182
71350rcu_preempt0-21swapper/209:19:442
71350rcu_preempt0-21swapper/209:19:442
71350rcu_preempt0-21swapper/209:19:442
71350rcu_preempt0-21swapper/208:49:532
71350rcu_preempt0-21swapper/208:49:532
71350rcu_preempt0-21swapper/208:37:262
71350rcu_preempt0-21swapper/208:37:262
71350rcu_preempt0-21swapper/111:52:411
71350rcu_preempt0-21swapper/111:52:411
71350rcu_preempt0-21swapper/111:45:031
71350rcu_preempt0-21swapper/111:45:031
71350rcu_preempt0-21swapper/012:34:000
71350rcu_preempt0-21swapper/012:34:000
71350rcu_preempt0-21swapper/011:49:480
71350rcu_preempt0-21swapper/011:49:480
46050350irq/122-QManpo30921-2110:48:550
46050350irq/122-QManpo30921-2110:48:550
46050350irq/122-QManpo30921-2110:48:550
46050350irq/122-QManpo18959-2110:48:550
46050350irq/122-QManpo18959-2110:48:550
46050350irq/122-QManpo18959-2110:48:550
46050350irq/122-QManpo18720-2110:48:550
46050350irq/122-QManpo18720-2110:48:550
46050350irq/122-QManpo18720-2110:48:550
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
1599350migration/014909-21taskset07:57:010
1599350migration/014909-21taskset07:57:010
1599350migration/012288-21taskset07:47:230
1599350migration/012288-21taskset07:47:230
107362350chrt4414-1kworker/0:0H11:21:450
107362350chrt4414-1kworker/0:0H11:21:450
71340rcu_preempt27128-21ssh10:52:381
71340rcu_preempt27128-21ssh10:52:381
71340rcu_preempt2565-21cyclictest10:17:482
71340rcu_preempt2565-21cyclictest10:17:482
71340rcu_preempt23367-21sh10:45:573
71340rcu_preempt23367-21sh10:45:573
71340rcu_preempt23367-21sh10:45:573
71340rcu_preempt22050-21/usr/sbin/munin08:22:301
71340rcu_preempt22050-21/usr/sbin/munin08:22:301
71340rcu_preempt22050-21/usr/sbin/munin08:22:301
71340rcu_preempt14533-21sh12:27:091
71340rcu_preempt14533-21sh12:27:091
71340rcu_preempt14533-21sh12:27:091
71340rcu_preempt0-21swapper/311:09:553
71340rcu_preempt0-21swapper/311:09:553
71340rcu_preempt0-21swapper/311:09:553
71340rcu_preempt0-21swapper/310:49:193
71340rcu_preempt0-21swapper/310:49:193
71340rcu_preempt0-21swapper/309:58:563
71340rcu_preempt0-21swapper/309:58:563
71340rcu_preempt0-21swapper/309:12:583
71340rcu_preempt0-21swapper/309:12:583
71340rcu_preempt0-21swapper/307:47:553
71340rcu_preempt0-21swapper/307:47:553
71340rcu_preempt0-21swapper/307:43:143
71340rcu_preempt0-21swapper/307:43:143
71340rcu_preempt0-21swapper/307:43:143
71340rcu_preempt0-21swapper/211:57:432
71340rcu_preempt0-21swapper/211:57:432
71340rcu_preempt0-21swapper/211:57:432
71340rcu_preempt0-21swapper/208:43:372
71340rcu_preempt0-21swapper/208:43:372
71340rcu_preempt0-21swapper/208:43:372
71340rcu_preempt0-21swapper/207:57:532
71340rcu_preempt0-21swapper/207:57:532
71340rcu_preempt0-21swapper/207:57:532
71340rcu_preempt0-21swapper/112:34:241
71340rcu_preempt0-21swapper/112:34:241
71340rcu_preempt0-21swapper/111:58:341
71340rcu_preempt0-21swapper/111:58:341
71340rcu_preempt0-21swapper/111:58:341
71340rcu_preempt0-21swapper/111:31:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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