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2026-06-20 - 18:36
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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 Sat Jun 20, 2026 12:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71800rcu_preempt11913-21apt-get07:43:520
71800rcu_preempt11913-21apt-get07:43:520
71800rcu_preempt11913-21apt-get07:43:520
71740rcu_preempt0-21swapper/009:38:330
71740rcu_preempt0-21swapper/009:38:330
71740rcu_preempt0-21swapper/009:38:330
71540rcu_preempt0-21swapper/211:05:272
71540rcu_preempt0-21swapper/211:05:272
71540rcu_preempt0-21swapper/211:05:272
71510rcu_preempt32008-21unixbench_singl11:09:082
71510rcu_preempt32008-21unixbench_singl11:09:082
71510rcu_preempt32008-21unixbench_singl11:09:082
71510rcu_preempt32008-21unixbench_singl11:09:082
46050450irq/122-QManpo0-210
46050450irq/122-QManpo0-210
71440rcu_preempt0-21swapper/209:48:562
71440rcu_preempt0-21swapper/209:48:562
71440rcu_preempt0-21swapper/209:48:562
71420rcu_preempt12668-21sh10:30:010
71420rcu_preempt12668-21sh10:30:010
71420rcu_preempt12668-21sh10:30:010
46050420irq/122-QManpo1959-2110:48:550
46050420irq/122-QManpo1959-2110:48:550
46050420irq/122-QManpo1959-2110:48:550
71410rcu_preempt24139-1kworker/2:3H08:28:582
71410rcu_preempt24139-1kworker/2:3H08:28:582
71410rcu_preempt20920-21ssh09:43:450
71410rcu_preempt20920-21ssh09:43:450
71410rcu_preempt20920-21ssh09:43:450
71410rcu_preempt0-21swapper/107:34:141
71410rcu_preempt0-21swapper/107:34:141
71410rcu_preempt0-21swapper/010:06:130
71410rcu_preempt0-21swapper/010:06:130
71410rcu_preempt0-21swapper/010:06:130
46050410irq/122-QManpo6203-2110:48:550
46050410irq/122-QManpo6203-2110:48:550
46050410irq/122-QManpo6203-2110:48:550
1599410migration/013780-21/usr/sbin/munin07:48:500
1599410migration/013780-21/usr/sbin/munin07:48:500
1599410migration/013780-21/usr/sbin/munin07:48:500
71400rcu_preempt27641-21sh11:00:341
71400rcu_preempt27641-21sh11:00:341
71400rcu_preempt27641-21sh11:00:341
71400rcu_preempt27641-21sh11:00:341
71400rcu_preempt26903-21wc10:59:010
71400rcu_preempt26903-21wc10:59:010
71400rcu_preempt26903-21wc10:59:010
71400rcu_preempt26903-21wc10:59:010
71400rcu_preempt0-21swapper/209:38:392
71400rcu_preempt0-21swapper/209:38:392
71400rcu_preempt0-21swapper/209:38:392
46050400irq/122-QManpo23039-210
46050400irq/122-QManpo23039-210
46050400irq/122-QManpo23039-210
71390rcu_preempt9638-21diskmemload09:23:292
71390rcu_preempt9638-21diskmemload09:23:292
71390rcu_preempt9638-21diskmemload09:23:292
71390rcu_preempt0-21swapper/209:04:592
71390rcu_preempt0-21swapper/209:04:592
71390rcu_preempt0-21swapper/009:03:300
71390rcu_preempt0-21swapper/009:03:300
46050390irq/122-QManpo7501-2110:48:550
46050390irq/122-QManpo7501-2110:48:550
46050390irq/122-QManpo7501-2110:48:550
46050390irq/122-QManpo0-210
46050390irq/122-QManpo0-210
71380rcu_preempt8558-1kworker/1:0H09:24:171
71380rcu_preempt8558-1kworker/1:0H09:24:171
71380rcu_preempt6159-21ssh09:15:230
71380rcu_preempt6159-21ssh09:15:230
71380rcu_preempt6159-21ssh09:15:230
71380rcu_preempt21363-1kworker/1:3H12:10:211
71380rcu_preempt21363-1kworker/1:3H12:10:211
71380rcu_preempt0-21swapper/210:04:392
71380rcu_preempt0-21swapper/210:04:392
71380rcu_preempt0-21swapper/210:04:392
71380rcu_preempt0-21swapper/209:44:022
71380rcu_preempt0-21swapper/209:44:022
71380rcu_preempt0-21swapper/209:44:022
71380rcu_preempt0-21swapper/110:19:261
71380rcu_preempt0-21swapper/110:19:261
46050380irq/122-QManpo9011-2110:48:550
46050380irq/122-QManpo9011-2110:48:550
46050380irq/122-QManpo9011-2110:48:550
46050380irq/122-QManpo11868-2110:48:550
46050380irq/122-QManpo11868-2110:48:550
46050380irq/122-QManpo11868-2110:48:550
46050380irq/122-QManpo0-210
99750370irq/38-i2c-mpc4805-21diskstats12:23:471
99750370irq/38-i2c-mpc4805-21diskstats12:23:471
71370rcu_preempt26721-21sh12:03:361
71370rcu_preempt26721-21sh12:03:361
71370rcu_preempt0-21swapper/210:09:052
71370rcu_preempt0-21swapper/210:09:052
71370rcu_preempt0-21swapper/112:19:211
71370rcu_preempt0-21swapper/112:19:211
71370rcu_preempt0-21swapper/112:19:211
71370rcu_preempt0-21swapper/109:49:261
71370rcu_preempt0-21swapper/109:49:261
71370rcu_preempt0-21swapper/109:49:261
71370rcu_preempt0-21swapper/012:17:040
71370rcu_preempt0-21swapper/012:17:040
71370rcu_preempt0-21swapper/012:17:040
71370rcu_preempt0-21swapper/012:09:340
71370rcu_preempt0-21swapper/012:09:340
71370rcu_preempt0-21swapper/010:10:490
71370rcu_preempt0-21swapper/010:10:490
71370rcu_preempt0-21swapper/009:12:170
71370rcu_preempt0-21swapper/009:12:170
71370rcu_preempt0-21swapper/009:12:170
71370rcu_preempt0-21swapper/007:56:160
71370rcu_preempt0-21swapper/007:56:160
46450370irq/118-QManpo0-2110:48:552
46450370irq/118-QManpo0-2110:48:552
46050370irq/122-QManpo6200-2110:48:550
46050370irq/122-QManpo6200-2110:48:550
46050370irq/122-QManpo4126-210
46050370irq/122-QManpo4126-210
46050370irq/122-QManpo4126-210
46050370irq/122-QManpo23872-2110:48:550
46050370irq/122-QManpo23872-2110:48:550
46050370irq/122-QManpo23872-2110:48:550
46050370irq/122-QManpo22270-210
46050370irq/122-QManpo22270-210
46050370irq/122-QManpo22270-210
46050370irq/122-QManpo2109-2110:48:550
46050370irq/122-QManpo2109-2110:48:550
46050370irq/122-QManpo19675-2110:48:550
46050370irq/122-QManpo19675-2110:48:550
46050370irq/122-QManpo17068-2110:48:550
46050370irq/122-QManpo17068-2110:48:550
46050370irq/122-QManpo17068-2110:48:550
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
71360rcu_preempt3533-21crond07:13:291
71360rcu_preempt3533-21crond07:13:291
71360rcu_preempt31873-21wget12:13:421
71360rcu_preempt31873-21wget12:13:421
71360rcu_preempt31873-21wget12:13:421
71360rcu_preempt29994-21runrttasks10:01:062
71360rcu_preempt29994-21runrttasks10:01:062
71360rcu_preempt27009-1kworker/1:1H09:58:551
71360rcu_preempt27009-1kworker/1:1H09:58:551
71360rcu_preempt25707-21sh10:57:071
71360rcu_preempt25707-21sh10:57:071
71360rcu_preempt25707-21sh10:57:071
71360rcu_preempt25707-21sh10:57:071
71360rcu_preempt13350-21sh12:39:512
71360rcu_preempt13350-21sh12:39:512
71360rcu_preempt0-21swapper/211:49:092
71360rcu_preempt0-21swapper/211:49:092
71360rcu_preempt0-21swapper/211:49:092
71360rcu_preempt0-21swapper/211:15:242
71360rcu_preempt0-21swapper/211:15:242
71360rcu_preempt0-21swapper/211:15:242
71360rcu_preempt0-21swapper/210:39:032
71360rcu_preempt0-21swapper/210:39:032
71360rcu_preempt0-21swapper/210:39:032
71360rcu_preempt0-21swapper/209:56:442
71360rcu_preempt0-21swapper/209:56:442
71360rcu_preempt0-21swapper/209:56:442
71360rcu_preempt0-21swapper/112:29:501
71360rcu_preempt0-21swapper/112:29:501
71360rcu_preempt0-21swapper/112:29:501
71360rcu_preempt0-21swapper/111:54:531
71360rcu_preempt0-21swapper/111:54:531
71360rcu_preempt0-21swapper/111:54:531
71360rcu_preempt0-21swapper/111:12:011
71360rcu_preempt0-21swapper/111:12:011
71360rcu_preempt0-21swapper/111:12:011
71360rcu_preempt0-21swapper/111:12:011
71360rcu_preempt0-21swapper/110:13:451
71360rcu_preempt0-21swapper/110:13:451
71360rcu_preempt0-21swapper/110:13:451
71360rcu_preempt0-21swapper/108:04:191
71360rcu_preempt0-21swapper/108:04:191
71360rcu_preempt0-21swapper/107:32:071
71360rcu_preempt0-21swapper/107:32:071
71360rcu_preempt0-21swapper/012:05:550
71360rcu_preempt0-21swapper/012:05:550
71360rcu_preempt0-21swapper/011:18:260
71360rcu_preempt0-21swapper/011:18:260
71360rcu_preempt0-21swapper/011:18:260
71360rcu_preempt0-21swapper/010:56:440
71360rcu_preempt0-21swapper/010:56:440
71360rcu_preempt0-21swapper/010:56:440
71360rcu_preempt0-21swapper/010:56:440
71360rcu_preempt0-21swapper/010:46:440
71360rcu_preempt0-21swapper/010:46:440
71360rcu_preempt0-21swapper/010:46:440
46050360irq/122-QManpo8900-2110:48:550
46050360irq/122-QManpo8900-2110:48:550
46050360irq/122-QManpo8900-2110:48:550
46050360irq/122-QManpo6646-2110:48:550
46050360irq/122-QManpo6646-2110:48:550
46050360irq/122-QManpo6646-2110:48:550
46050360irq/122-QManpo28966-210
46050360irq/122-QManpo28966-210
46050360irq/122-QManpo25980-210
46050360irq/122-QManpo25980-210
46050360irq/122-QManpo23431-210
46050360irq/122-QManpo23431-210
46050360irq/122-QManpo17630-2110:48:550
46050360irq/122-QManpo17630-2110:48:550
46050360irq/122-QManpo10699-210
46050360irq/122-QManpo10699-210
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
3688993630cyclictest11576-21df10:28:441
3688993630cyclictest11576-21df10:28:441
3688993630cyclictest11576-21df10:28:441
89992350sleep07382-1kworker/0:2H07:32:040
89992350sleep07382-1kworker/0:2H07:32:040
71350rcu_preempt507-21sh11:12:220
71350rcu_preempt507-21sh11:12:220
71350rcu_preempt507-21sh11:12:220
71350rcu_preempt507-21sh11:12:220
71350rcu_preempt4578-21crond09:13:281
71350rcu_preempt4578-21crond09:13:281
71350rcu_preempt4578-21crond09:13:281
71350rcu_preempt25896-1kworker/0:2H11:08:320
71350rcu_preempt25896-1kworker/0:2H11:08:320
71350rcu_preempt25896-1kworker/0:2H11:08:320
71350rcu_preempt25753-21ssh12:01:160
71350rcu_preempt25753-21ssh12:01:160
71350rcu_preempt25753-21ssh12:01:160
71350rcu_preempt17800-21apt-get09:38:581
71350rcu_preempt17800-21apt-get09:38:581
71350rcu_preempt17800-21apt-get09:38:581
71350rcu_preempt17734-1kworker/1:2H11:51:441
71350rcu_preempt17734-1kworker/1:2H11:51:441
71350rcu_preempt17734-1kworker/1:2H11:51:441
71350rcu_preempt0-21swapper/212:28:092
71350rcu_preempt0-21swapper/212:28:092
71350rcu_preempt0-21swapper/212:20:512
71350rcu_preempt0-21swapper/212:20:512
71350rcu_preempt0-21swapper/212:20:512
71350rcu_preempt0-21swapper/212:17:492
71350rcu_preempt0-21swapper/212:17:492
71350rcu_preempt0-21swapper/212:17:492
71350rcu_preempt0-21swapper/210:16:272
71350rcu_preempt0-21swapper/210:16:272
71350rcu_preempt0-21swapper/210:16:272
71350rcu_preempt0-21swapper/209:15:532
71350rcu_preempt0-21swapper/209:15:532
71350rcu_preempt0-21swapper/209:15:532
71350rcu_preempt0-21swapper/112:03:541
71350rcu_preempt0-21swapper/112:03:541
71350rcu_preempt0-21swapper/110:12:561
71350rcu_preempt0-21swapper/110:12:561
71350rcu_preempt0-21swapper/109:34:541
71350rcu_preempt0-21swapper/109:34:541
71350rcu_preempt0-21swapper/109:34:541
71350rcu_preempt0-21swapper/107:43:411
71350rcu_preempt0-21swapper/107:43:411
71350rcu_preempt0-21swapper/107:43:411
46050350irq/122-QManpo6706-2110:48:550
46050350irq/122-QManpo6706-2110:48:550
46050350irq/122-QManpo2822-2110:48:550
46050350irq/122-QManpo2822-2110:48:550
46050350irq/122-QManpo2822-2110:48:550
46050350irq/122-QManpo23180-2110:48:550
46050350irq/122-QManpo23180-2110:48:550
46050350irq/122-QManpo23180-2110:48:550
46050350irq/122-QManpo18338-210
46050350irq/122-QManpo18338-210
46050350irq/122-QManpo18338-210
46050350irq/122-QManpo16756-2110:48:550
46050350irq/122-QManpo16756-2110:48:550
46050350irq/122-QManpo16756-2110:48:550
46050350irq/122-QManpo10035-2110:48:550
46050350irq/122-QManpo10035-2110:48:550
46050350irq/122-QManpo0-210
71340rcu_preempt6844-21memory11:23:561
71340rcu_preempt6844-21memory11:23:561
71340rcu_preempt6844-21memory11:23:561
71340rcu_preempt4188-1kworker/0:0H12:24:550
71340rcu_preempt4188-1kworker/0:0H12:24:550
71340rcu_preempt26600-21sendmail-msp12:36:081
71340rcu_preempt26600-21sendmail-msp12:36:081
71340rcu_preempt26600-21sendmail-msp12:36:081
71340rcu_preempt22417-21/usr/sbin/munin08:18:551
71340rcu_preempt22417-21/usr/sbin/munin08:18:551
71340rcu_preempt22417-21/usr/sbin/munin08:18:551
71340rcu_preempt1959-21runrttasks10:23:481
71340rcu_preempt1959-21runrttasks10:23:481
71340rcu_preempt1959-21runrttasks10:23:481
71340rcu_preempt18431-21sh10:42:051
71340rcu_preempt18431-21sh10:42:051
71340rcu_preempt18431-21sh10:42:051
71340rcu_preempt0-21swapper/311:19:163
71340rcu_preempt0-21swapper/311:19:163
71340rcu_preempt0-21swapper/212:07:442
71340rcu_preempt0-21swapper/212:07:442
71340rcu_preempt0-21swapper/111:59:391
71340rcu_preempt0-21swapper/111:42:421
71340rcu_preempt0-21swapper/111:42:421
71340rcu_preempt0-21swapper/111:42:421
71340rcu_preempt0-21swapper/111:31:201
71340rcu_preempt0-21swapper/111:31:201
71340rcu_preempt0-21swapper/109:47:031
71340rcu_preempt0-21swapper/109:47:031
71340rcu_preempt0-21swapper/109:47:031
71340rcu_preempt0-21swapper/109:32:181
71340rcu_preempt0-21swapper/109:32:181
71340rcu_preempt0-21swapper/108:12:251
71340rcu_preempt0-21swapper/108:12:251
71340rcu_preempt0-21swapper/107:25:581
71340rcu_preempt0-21swapper/107:25:581
71340rcu_preempt0-21swapper/107:13:521
71340rcu_preempt0-21swapper/107:13:521
71340rcu_preempt0-21swapper/009:24:070
71340rcu_preempt0-21swapper/009:24:070
71340rcu_preempt0-21swapper/008:48:500
71340rcu_preempt0-21swapper/008:48:500
71340rcu_preempt0-21swapper/007:16:400
71340rcu_preempt0-21swapper/007:16:400
46050340irq/122-QManpo24443-2110:48:550
46050340irq/122-QManpo24443-2110:48:550
46050340irq/122-QManpo0-210
46050340irq/122-QManpo0-210
46050340irq/122-QManpo0-210
46050340irq/122-QManpo0-210
46050340irq/122-QManpo0-210
71330rcu_preempt7345-21ssh10:19:522
71330rcu_preempt7345-21ssh10:19:522
71330rcu_preempt29661-21runrttasks08:44:112
71330rcu_preempt29661-21runrttasks08:44:112
71330rcu_preempt29661-21runrttasks08:44:112
71330rcu_preempt27551-21ssh11:00:152
71330rcu_preempt27551-21ssh11:00:152
71330rcu_preempt27551-21ssh11:00:152
71330rcu_preempt27551-21ssh11:00:152
71330rcu_preempt15967-21taskset07:57:022
71330rcu_preempt15967-21taskset07:57:022
71330rcu_preempt13006-21ps09:28:572
71330rcu_preempt13006-21ps09:28:572
71330rcu_preempt12901-21head07:44:012
71330rcu_preempt12901-21head07:44:012
71330rcu_preempt12901-21head07:44:012
71330rcu_preempt0-21swapper/212:00:422
71330rcu_preempt0-21swapper/212:00:422
71330rcu_preempt0-21swapper/212:00:422
71330rcu_preempt0-21swapper/211:34:222
71330rcu_preempt0-21swapper/211:34:222
71330rcu_preempt0-21swapper/211:34:222
71330rcu_preempt0-21swapper/210:56:262
71330rcu_preempt0-21swapper/210:56:262
71330rcu_preempt0-21swapper/210:56:262
71330rcu_preempt0-21swapper/210:56:262
71330rcu_preempt0-21swapper/210:27:192
71330rcu_preempt0-21swapper/210:27:192
71330rcu_preempt0-21swapper/210:27:192
71330rcu_preempt0-21swapper/208:59:522
71330rcu_preempt0-21swapper/208:59:522
71330rcu_preempt0-21swapper/208:08:412
71330rcu_preempt0-21swapper/208:08:412
71330rcu_preempt0-21swapper/207:51:482
71330rcu_preempt0-21swapper/207:51:482
71330rcu_preempt0-21swapper/207:51:482
71330rcu_preempt0-21swapper/111:35:511
71330rcu_preempt0-21swapper/111:35:511
71330rcu_preempt0-21swapper/111:35:511
71330rcu_preempt0-21swapper/111:19:251
71330rcu_preempt0-21swapper/111:19:251
71330rcu_preempt0-21swapper/111:04:201
71330rcu_preempt0-21swapper/111:04:201
71330rcu_preempt0-21swapper/111:04:201
71330rcu_preempt0-21swapper/110:35:471
71330rcu_preempt0-21swapper/110:35:471
71330rcu_preempt0-21swapper/110:35:471
71330rcu_preempt0-21swapper/109:20:501
71330rcu_preempt0-21swapper/109:20:501
71330rcu_preempt0-21swapper/109:20:501
71330rcu_preempt0-21swapper/109:14:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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