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2026-05-13 - 15:31
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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 Wed May 13, 2026 12:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1281021000chrt46650irq/116-QMan10:48:553
1281021000chrt46650irq/116-QMan10:48:553
1281021000chrt46650irq/116-QMan10:48:553
198602620chrt46650irq/116-QMan10:48:553
198602620chrt46650irq/116-QMan10:48:553
198602620chrt46650irq/116-QMan10:48:553
32634995022cyclictest12818-21/usr/sbin/munin07:58:040
32634995022cyclictest12818-21/usr/sbin/munin07:58:040
32634995022cyclictest12818-21/usr/sbin/munin07:58:040
71490rcu_preempt16884-21apt-get08:13:080
71490rcu_preempt16884-21apt-get08:13:080
71460rcu_preempt0-21swapper/009:26:050
71460rcu_preempt0-21swapper/009:26:050
71460rcu_preempt0-21swapper/009:26:050
71450rcu_preempt0-21swapper/010:12:130
71450rcu_preempt0-21swapper/010:12:130
71450rcu_preempt0-21swapper/010:12:130
71440rcu_preempt0-21swapper/010:50:380
71440rcu_preempt0-21swapper/010:50:380
71440rcu_preempt0-21swapper/010:50:380
32634994422cyclictest15237-21/usr/sbin/munin09:38:070
32634994422cyclictest15237-21/usr/sbin/munin09:38:070
71420rcu_preempt11640-21sh09:31:203
71420rcu_preempt11640-21sh09:31:203
71420rcu_preempt11640-21sh09:31:203
46050420irq/122-QManpo0-210
46050420irq/122-QManpo0-210
32634994232cyclictest12042-21apt-get10:33:000
32634994232cyclictest12042-21apt-get10:33:000
32634994220cyclictest24166-21ssh10:54:470
32634994220cyclictest24166-21ssh10:54:470
32634994219cyclictest11751-21apt-get11:33:010
32634994219cyclictest11751-21apt-get11:33:010
32634994217cyclictest18780-21sh11:45:100
32634994217cyclictest18780-21sh11:45:100
32634994217cyclictest18780-21sh11:45:100
32634994212cyclictest0-21swapper/011:48:180
32634994212cyclictest0-21swapper/011:48:180
32634994212cyclictest0-21swapper/011:48:180
32634994211cyclictest0-21swapper/012:05:070
32634994211cyclictest0-21swapper/012:05:070
71410rcu_preempt0-21swapper/111:48:131
71410rcu_preempt0-21swapper/111:48:131
71410rcu_preempt0-21swapper/111:48:131
71410rcu_preempt0-21swapper/109:20:221
71410rcu_preempt0-21swapper/109:20:221
71410rcu_preempt0-21swapper/109:20:221
32634994120cyclictest10443-1kworker/0:0H10:31:050
32634994120cyclictest10443-1kworker/0:0H10:31:050
32634994120cyclictest10443-1kworker/0:0H10:31:050
32634994119cyclictest9697-21ntp_states11:28:150
32634994119cyclictest9697-21ntp_states11:28:150
32634994119cyclictest20987-21ntp_states09:48:170
32634994119cyclictest20987-21ntp_states09:48:170
32634994113cyclictest4932-21ssh12:21:120
32634994113cyclictest4932-21ssh12:21:120
32634994113cyclictest4932-21ssh12:21:120
71400rcu_preempt0-21swapper/309:26:023
71400rcu_preempt0-21swapper/309:26:023
71400rcu_preempt0-21swapper/309:26:023
71400rcu_preempt0-21swapper/211:21:242
71400rcu_preempt0-21swapper/211:21:242
71400rcu_preempt0-21swapper/112:40:251
71400rcu_preempt0-21swapper/112:40:251
71400rcu_preempt0-21swapper/111:08:371
71400rcu_preempt0-21swapper/111:08:371
71400rcu_preempt0-21swapper/109:43:201
71400rcu_preempt0-21swapper/109:43:201
71400rcu_preempt0-21swapper/109:43:201
71400rcu_preempt0-21swapper/109:14:421
71400rcu_preempt0-21swapper/109:14:421
71400rcu_preempt0-21swapper/109:14:421
71400rcu_preempt0-21swapper/108:09:261
71400rcu_preempt0-21swapper/108:09:261
71400rcu_preempt0-21swapper/012:02:210
71400rcu_preempt0-21swapper/012:02:210
71400rcu_preempt0-21swapper/011:16:030
71400rcu_preempt0-21swapper/011:16:030
71400rcu_preempt0-21swapper/011:16:030
32634994021cyclictest22727-21df_inode11:53:080
32634994021cyclictest22727-21df_inode11:53:080
32634994020cyclictest7097-21ntp_states11:23:170
32634994020cyclictest7097-21ntp_states11:23:170
32634994020cyclictest13794-21meminfo12:38:100
32634994020cyclictest13794-21meminfo12:38:100
32634994019cyclictest16136-21ntp_states08:08:130
32634994019cyclictest16136-21ntp_states08:08:130
32634994017cyclictest26078-21sendmail_mailst10:58:160
32634994017cyclictest26078-21sendmail_mailst10:58:160
32634994017cyclictest11344-21ntpq12:33:170
32634994017cyclictest11344-21ntpq12:33:170
32634994017cyclictest11344-21ntpq12:33:170
32634994016cyclictest6649-21sendmail-msp10:26:280
32634994016cyclictest6649-21sendmail-msp10:26:280
32634994016cyclictest0-21swapper/011:08:030
32634994016cyclictest0-21swapper/011:08:030
32634994016cyclictest0-21swapper/009:33:130
32634994016cyclictest0-21swapper/009:33:130
32634994012cyclictest17804-21ssh09:42:590
32634994012cyclictest17804-21ssh09:42:590
32634994012cyclictest17804-21ssh09:42:590
71390rcu_preempt14971-21sh09:37:593
71390rcu_preempt14971-21sh09:37:593
71390rcu_preempt0-21swapper/312:18:013
71390rcu_preempt0-21swapper/208:02:542
71390rcu_preempt0-21swapper/208:02:542
71390rcu_preempt0-21swapper/208:02:542
71390rcu_preempt0-21swapper/112:33:371
71390rcu_preempt0-21swapper/112:33:371
71390rcu_preempt0-21swapper/112:33:371
71390rcu_preempt0-21swapper/112:28:191
71390rcu_preempt0-21swapper/112:28:191
71390rcu_preempt0-21swapper/112:25:161
71390rcu_preempt0-21swapper/112:25:161
71390rcu_preempt0-21swapper/112:25:161
71390rcu_preempt0-21swapper/110:55:391
71390rcu_preempt0-21swapper/110:55:391
71390rcu_preempt0-21swapper/110:06:041
71390rcu_preempt0-21swapper/110:06:041
71390rcu_preempt0-21swapper/011:42:500
71390rcu_preempt0-21swapper/011:42:500
32634993929cyclictest30924-21apt-get09:03:000
32634993929cyclictest30924-21apt-get09:03:000
32634993929cyclictest30924-21apt-get09:03:000
32634993920cyclictest4028-21irqstats11:18:080
32634993920cyclictest4028-21irqstats11:18:080
32634993919cyclictest9732-21runrttasks07:45:560
32634993919cyclictest9732-21runrttasks07:45:560
32634993919cyclictest801-21df12:13:040
32634993919cyclictest801-21df12:13:040
32634993919cyclictest801-21df12:13:040
32634993918cyclictest30606-21ssh10:06:510
32634993918cyclictest30606-21ssh10:06:510
32634993918cyclictest20745-21runrttasks08:23:500
32634993918cyclictest20745-21runrttasks08:23:500
32634993918cyclictest20745-21runrttasks08:23:500
32634993917cyclictest10641-21users09:28:180
32634993917cyclictest10641-21users09:28:180
32634993917cyclictest10641-21users09:28:180
32634993917cyclictest0-21swapper/009:08:100
32634993917cyclictest0-21swapper/009:08:100
32634993917cyclictest0-21swapper/008:18:140
32634993917cyclictest0-21swapper/008:18:140
32634993915cyclictest0-21swapper/012:28:160
32634993915cyclictest0-21swapper/012:28:160
2899390migration/332401-21taskset07:11:473
2899390migration/332401-21taskset07:11:473
71380rcu_preempt30305-21diskmemload11:06:531
71380rcu_preempt30305-21diskmemload11:06:531
71380rcu_preempt17580-21kworker/2:008:23:022
71380rcu_preempt17580-21kworker/2:008:23:022
71380rcu_preempt17580-21kworker/2:008:23:022
71380rcu_preempt14162-21latency_hist08:02:531
71380rcu_preempt14162-21latency_hist08:02:531
71380rcu_preempt14162-21latency_hist08:02:531
71380rcu_preempt0-21swapper/311:16:393
71380rcu_preempt0-21swapper/311:16:393
71380rcu_preempt0-21swapper/311:16:393
71380rcu_preempt0-21swapper/310:42:123
71380rcu_preempt0-21swapper/310:42:123
71380rcu_preempt0-21swapper/310:42:123
71380rcu_preempt0-21swapper/308:26:103
71380rcu_preempt0-21swapper/308:26:103
71380rcu_preempt0-21swapper/308:26:103
71380rcu_preempt0-21swapper/112:12:141
71380rcu_preempt0-21swapper/112:12:141
71380rcu_preempt0-21swapper/112:12:141
71380rcu_preempt0-21swapper/112:12:141
71380rcu_preempt0-21swapper/110:44:331
71380rcu_preempt0-21swapper/110:44:331
71380rcu_preempt0-21swapper/110:44:331
71380rcu_preempt0-21swapper/110:35:171
71380rcu_preempt0-21swapper/110:35:171
71380rcu_preempt0-21swapper/010:13:330
71380rcu_preempt0-21swapper/010:13:330
32634993819cyclictest25235-21munin-run08:42:500
32634993819cyclictest25235-21munin-run08:42:500
32634993818cyclictest6970-21cat09:22:530
32634993818cyclictest6970-21cat09:22:530
32634993818cyclictest6970-21cat09:22:530
32634993818cyclictest1958-21snmpd09:13:520
32634993818cyclictest1958-21snmpd09:13:520
32634993818cyclictest1958-21snmpd09:13:520
32634993818cyclictest14650-21meminfo08:03:140
32634993818cyclictest14650-21meminfo08:03:140
32634993818cyclictest14650-21meminfo08:03:140
32634993818cyclictest10439-21meminfo07:48:090
32634993818cyclictest10439-21meminfo07:48:090
32634993818cyclictest10439-21meminfo07:48:090
32634993817cyclictest3560-21ntp_states07:23:150
32634993817cyclictest3560-21ntp_states07:23:150
32634993817cyclictest3560-21ntp_states07:23:150
32634993817cyclictest2914-21sendmail-msp07:38:030
32634993817cyclictest2914-21sendmail-msp07:38:030
32634993817cyclictest2914-21sendmail-msp07:38:030
32634993817cyclictest27392-21/usr/sbin/munin08:48:170
32634993817cyclictest27392-21/usr/sbin/munin08:48:170
32634993816cyclictest7561-21ssh12:26:280
32634993816cyclictest7561-21ssh12:26:280
32634993816cyclictest7561-21ssh12:26:280
32634993816cyclictest26545-21chrt08:47:010
32634993816cyclictest26545-21chrt08:47:010
32634993816cyclictest0-21swapper/010:38:010
32634993816cyclictest0-21swapper/010:38:010
32634993816cyclictest0-21swapper/010:38:010
32634993816cyclictest0-21swapper/008:53:130
32634993816cyclictest0-21swapper/008:53:130
32634993815cyclictest0-21swapper/012:08:240
32634993815cyclictest0-21swapper/012:08:240
32634993815cyclictest0-21swapper/012:08:240
32634993815cyclictest0-21swapper/012:08:240
71370rcu_preempt0-21swapper/311:25:333
71370rcu_preempt0-21swapper/311:25:333
71370rcu_preempt0-21swapper/308:04:593
71370rcu_preempt0-21swapper/308:04:593
71370rcu_preempt0-21swapper/308:04:593
71370rcu_preempt0-21swapper/307:51:203
71370rcu_preempt0-21swapper/307:51:203
71370rcu_preempt0-21swapper/307:51:203
71370rcu_preempt0-21swapper/112:20:281
71370rcu_preempt0-21swapper/112:20:281
71370rcu_preempt0-21swapper/112:20:281
71370rcu_preempt0-21swapper/111:56:051
71370rcu_preempt0-21swapper/111:56:051
71370rcu_preempt0-21swapper/111:47:131
71370rcu_preempt0-21swapper/111:47:131
71370rcu_preempt0-21swapper/111:47:131
71370rcu_preempt0-21swapper/111:28:191
71370rcu_preempt0-21swapper/111:28:191
71370rcu_preempt0-21swapper/111:27:141
71370rcu_preempt0-21swapper/111:27:141
71370rcu_preempt0-21swapper/108:29:311
71370rcu_preempt0-21swapper/108:29:311
71370rcu_preempt0-21swapper/011:04:470
71370rcu_preempt0-21swapper/011:04:470
71370rcu_preempt0-21swapper/007:33:150
71370rcu_preempt0-21swapper/007:33:150
71370rcu_preempt0-21swapper/007:33:150
71370rcu_preempt0-21swapper/007:33:150
32634993718cyclictest23462-21meminfo09:53:110
32634993718cyclictest23462-21meminfo09:53:110
32634993718cyclictest23462-21meminfo09:53:110
32634993717cyclictest21211-21apt-get08:28:010
32634993717cyclictest21211-21apt-get08:28:010
32634993716cyclictest0-21swapper/010:43:010
32634993716cyclictest0-21swapper/010:43:010
32634993716cyclictest0-21swapper/010:43:010
71360rcu_preempt17728-21kworker/3:409:43:043
71360rcu_preempt17728-21kworker/3:409:43:043
71360rcu_preempt17728-21kworker/3:409:43:043
71360rcu_preempt10861-1kworker/3:2H11:33:113
71360rcu_preempt10861-1kworker/3:2H11:33:113
71360rcu_preempt0-21swapper/312:25:393
71360rcu_preempt0-21swapper/312:25:393
71360rcu_preempt0-21swapper/312:25:393
71360rcu_preempt0-21swapper/311:44:493
71360rcu_preempt0-21swapper/311:44:493
71360rcu_preempt0-21swapper/311:44:493
71360rcu_preempt0-21swapper/307:36:053
71360rcu_preempt0-21swapper/307:36:053
71360rcu_preempt0-21swapper/307:36:053
71360rcu_preempt0-21swapper/307:36:053
71360rcu_preempt0-21swapper/307:27:523
71360rcu_preempt0-21swapper/307:27:523
71360rcu_preempt0-21swapper/307:27:523
71360rcu_preempt0-21swapper/209:32:212
71360rcu_preempt0-21swapper/209:32:212
71360rcu_preempt0-21swapper/209:32:212
71360rcu_preempt0-21swapper/112:06:161
71360rcu_preempt0-21swapper/112:06:161
71360rcu_preempt0-21swapper/112:01:581
71360rcu_preempt0-21swapper/112:01:581
71360rcu_preempt0-21swapper/111:15:031
71360rcu_preempt0-21swapper/111:15:031
71360rcu_preempt0-21swapper/111:15:031
71360rcu_preempt0-21swapper/110:09:051
71360rcu_preempt0-21swapper/110:09:051
71360rcu_preempt0-21swapper/110:09:051
71360rcu_preempt0-21swapper/109:50:531
71360rcu_preempt0-21swapper/109:50:531
71360rcu_preempt0-21swapper/109:38:021
71360rcu_preempt0-21swapper/109:38:021
71360rcu_preempt0-21swapper/109:35:281
71360rcu_preempt0-21swapper/109:35:281
71360rcu_preempt0-21swapper/107:49:481
71360rcu_preempt0-21swapper/107:49:481
71360rcu_preempt0-21swapper/107:49:481
71360rcu_preempt0-21swapper/107:26:021
71360rcu_preempt0-21swapper/107:26:021
71360rcu_preempt0-21swapper/107:26:021
71360rcu_preempt0-21swapper/010:22:440
71360rcu_preempt0-21swapper/010:22:440
32634993619cyclictest11935-21ntp_states07:53:160
32634993619cyclictest11935-21ntp_states07:53:160
32634993616cyclictest4949-21awk07:28:220
32634993616cyclictest4949-21awk07:28:220
32634993616cyclictest4949-21awk07:28:220
32634993615cyclictest27479-21runrttasks10:00:370
32634993615cyclictest27479-21runrttasks10:00:370
71350rcu_preempt9792-1kworker/1:3H08:03:001
71350rcu_preempt9792-1kworker/1:3H08:03:001
71350rcu_preempt9792-1kworker/1:3H08:03:001
71350rcu_preempt32325-21sh12:11:073
71350rcu_preempt32325-21sh12:11:073
71350rcu_preempt32325-21sh12:11:073
71350rcu_preempt32325-21sh12:11:073
71350rcu_preempt17539-21wget10:43:012
71350rcu_preempt17539-21wget10:43:012
71350rcu_preempt17539-21wget10:43:012
71350rcu_preempt15680-1kworker/3:1H12:01:283
71350rcu_preempt15680-1kworker/3:1H12:01:283
71350rcu_preempt14735-1ssh12:39:353
71350rcu_preempt14735-1ssh12:39:353
71350rcu_preempt0-21swapper/312:15:183
71350rcu_preempt0-21swapper/312:15:183
71350rcu_preempt0-21swapper/311:42:243
71350rcu_preempt0-21swapper/311:42:243
71350rcu_preempt0-21swapper/311:28:523
71350rcu_preempt0-21swapper/311:28:523
71350rcu_preempt0-21swapper/311:19:313
71350rcu_preempt0-21swapper/311:19:313
71350rcu_preempt0-21swapper/310:55:193
71350rcu_preempt0-21swapper/310:55:193
71350rcu_preempt0-21swapper/309:33:583
71350rcu_preempt0-21swapper/309:33:583
71350rcu_preempt0-21swapper/308:59:023
71350rcu_preempt0-21swapper/308:59:023
71350rcu_preempt0-21swapper/308:59:023
71350rcu_preempt0-21swapper/308:12:103
71350rcu_preempt0-21swapper/308:12:103
71350rcu_preempt0-21swapper/211:36:392
71350rcu_preempt0-21swapper/211:36:392
71350rcu_preempt0-21swapper/210:41:182
71350rcu_preempt0-21swapper/210:41:182
71350rcu_preempt0-21swapper/210:41:182
71350rcu_preempt0-21swapper/210:28:152
71350rcu_preempt0-21swapper/210:28:152
71350rcu_preempt0-21swapper/210:28:152
71350rcu_preempt0-21swapper/112:16:301
71350rcu_preempt0-21swapper/112:16:301
71350rcu_preempt0-21swapper/112:16:301
71350rcu_preempt0-21swapper/111:36:551
71350rcu_preempt0-21swapper/111:36:551
71350rcu_preempt0-21swapper/110:49:591
71350rcu_preempt0-21swapper/110:49:591
71350rcu_preempt0-21swapper/110:49:591
71350rcu_preempt0-21swapper/110:32:331
71350rcu_preempt0-21swapper/110:32:331
71350rcu_preempt0-21swapper/110:32:331
71350rcu_preempt0-21swapper/110:25:301
71350rcu_preempt0-21swapper/110:25:301
71350rcu_preempt0-21swapper/110:22:121
71350rcu_preempt0-21swapper/110:22:121
71350rcu_preempt0-21swapper/109:28:091
71350rcu_preempt0-21swapper/109:28:091
71350rcu_preempt0-21swapper/109:28:091
71350rcu_preempt0-21swapper/109:11:481
71350rcu_preempt0-21swapper/109:11:481
71350rcu_preempt0-21swapper/109:06:061
71350rcu_preempt0-21swapper/109:06:061
71350rcu_preempt0-21swapper/109:06:061
71350rcu_preempt0-21swapper/107:53:451
71350rcu_preempt0-21swapper/107:53:451
71350rcu_preempt0-21swapper/107:39:001
71350rcu_preempt0-21swapper/107:39:001
71350rcu_preempt0-21swapper/107:39:001
71350rcu_preempt0-21swapper/107:36:421
71350rcu_preempt0-21swapper/107:36:421
71350rcu_preempt0-21swapper/107:36:421
71350rcu_preempt0-21swapper/107:36:421
46450350irq/118-QManpo0-2110:48:552
46450350irq/118-QManpo0-2110:48:552
32634993515cyclictest0-21swapper/007:18:020
32634993515cyclictest0-21swapper/007:18:020
32634993513cyclictest0-21swapper/008:33:150
32634993513cyclictest0-21swapper/008:33:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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