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2026-05-14 - 04:34
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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 Thu May 14, 2026 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71640rcu_preempt0-21swapper/200:37:192
71640rcu_preempt0-21swapper/200:37:192
71610rcu_preempt0-21swapper/223:28:382
71610rcu_preempt0-21swapper/223:28:382
71580rcu_preempt0-21swapper/300:07:563
71580rcu_preempt0-21swapper/300:07:563
2623599542cyclictest13347-21apt-get20:23:000
2623599542cyclictest13347-21apt-get20:23:000
2623599542cyclictest13347-21apt-get20:23:000
2623599532cyclictest26377-21ntp_states21:08:150
2623599532cyclictest26377-21ntp_states21:08:150
2623599532cyclictest26377-21ntp_states21:08:150
2623599523cyclictest0-21swapper/022:13:450
2623599523cyclictest0-21swapper/022:13:450
2623599523cyclictest0-21swapper/022:13:450
2623599522cyclictest27853-21irqstats00:13:090
2623599522cyclictest27853-21irqstats00:13:090
2623599522cyclictest27853-21irqstats00:13:090
2623599522cyclictest14965-21df_inode20:28:050
2623599522cyclictest14965-21df_inode20:28:050
2623599522cyclictest0-21swapper/023:08:050
2623599522cyclictest0-21swapper/023:08:050
2623599522cyclictest0-21swapper/023:08:050
2623599521cyclictest11786-21ssh23:43:110
2623599521cyclictest11786-21ssh23:43:110
2623599521cyclictest11786-21ssh23:43:110
2623599514cyclictest0-21swapper/000:21:430
2623599514cyclictest0-21swapper/000:21:430
2623599513cyclictest0-21swapper/022:08:070
2623599513cyclictest0-21swapper/022:08:070
2623599513cyclictest0-21swapper/022:08:070
2623599513cyclictest0-21swapper/021:38:530
2623599513cyclictest0-21swapper/021:38:530
2623599513cyclictest0-21swapper/020:03:160
2623599513cyclictest0-21swapper/020:03:160
2623599512cyclictest916-21memory23:23:150
2623599512cyclictest916-21memory23:23:150
2623599512cyclictest916-21memory23:23:150
2623599512cyclictest8585-21diskstats22:38:070
2623599512cyclictest8585-21diskstats22:38:070
2623599512cyclictest3317-21df23:28:030
2623599512cyclictest3317-21df23:28:030
2623599512cyclictest30648-21df_inode19:28:060
2623599512cyclictest30648-21df_inode19:28:060
2623599512cyclictest29538-21ntp_states19:23:150
2623599512cyclictest29538-21ntp_states19:23:150
2623599512cyclictest29538-21ntp_states19:23:150
2623599512cyclictest25874-1kworker/0:1H00:08:580
2623599512cyclictest25874-1kworker/0:1H00:08:580
2623599512cyclictest0-21swapper/019:22:540
2623599512cyclictest0-21swapper/019:22:540
2623599511cyclictest6365-21/usr/sbin/munin19:58:210
2623599511cyclictest6365-21/usr/sbin/munin19:58:210
2623599511cyclictest6365-21/usr/sbin/munin19:58:210
2623599504cyclictest4697-1kworker/0:2H22:50:210
2623599504cyclictest4697-1kworker/0:2H22:50:210
2623599504cyclictest4697-1kworker/0:2H22:50:210
2623599504cyclictest0-21swapper/022:23:270
2623599504cyclictest0-21swapper/022:23:270
2623599504cyclictest0-21swapper/022:23:270
2623599503cyclictest0-21swapper/023:00:070
2623599503cyclictest0-21swapper/023:00:070
2623599503cyclictest0-21swapper/023:00:070
2623599503cyclictest0-21swapper/022:54:160
2623599503cyclictest0-21swapper/022:54:160
2623599503cyclictest0-21swapper/022:54:160
2623599503cyclictest0-21swapper/022:30:440
2623599503cyclictest0-21swapper/022:30:440
2623599503cyclictest0-21swapper/022:30:440
2623599503cyclictest0-21swapper/021:34:370
2623599503cyclictest0-21swapper/021:34:370
2623599503cyclictest0-21swapper/020:48:050
2623599503cyclictest0-21swapper/020:48:050
2623599503cyclictest0-21swapper/020:08:160
2623599503cyclictest0-21swapper/020:08:160
2623599503cyclictest0-21swapper/000:05:150
2623599503cyclictest0-21swapper/000:05:150
2623599502cyclictest6413-21meminfo00:33:110
2623599502cyclictest6413-21meminfo00:33:110
2623599502cyclictest3823-21meminfo21:28:110
2623599502cyclictest3823-21meminfo21:28:110
2623599502cyclictest3823-21meminfo21:28:110
2623599502cyclictest25336-21users21:03:210
2623599502cyclictest25336-21users21:03:210
2623599502cyclictest25336-21users21:03:210
2623599502cyclictest0-21swapper/000:29:370
2623599502cyclictest0-21swapper/000:29:370
2623599502cyclictest0-21swapper/000:29:370
2623599501cyclictest3587-21/usr/sbin/munin19:48:030
2623599501cyclictest3587-21/usr/sbin/munin19:48:030
2623599501cyclictest3587-21/usr/sbin/munin19:48:030
2623599501cyclictest27427-21/usr/sbin/munin23:13:030
2623599501cyclictest27427-21/usr/sbin/munin23:13:030
2623599501cyclictest22919-21apt-get20:58:180
2623599501cyclictest22919-21apt-get20:58:180
2623599501cyclictest2193-21/usr/sbin/munin19:43:130
2623599501cyclictest2193-21/usr/sbin/munin19:43:130
2623599501cyclictest2193-21/usr/sbin/munin19:43:130
2623599501cyclictest1958-21snmpd22:44:080
2623599501cyclictest1958-21snmpd22:44:080
2623599501cyclictest18897-21apt-get20:43:010
2623599501cyclictest18897-21apt-get20:43:010
2623599501cyclictest18897-21apt-get20:43:010
71490rcu_preempt30187-21kworker/1:500:34:571
71490rcu_preempt30187-21kworker/1:500:34:571
2623599493cyclictest0-21swapper/023:48:040
2623599493cyclictest0-21swapper/023:48:040
2623599493cyclictest0-21swapper/023:48:040
2623599493cyclictest0-21swapper/022:19:210
2623599493cyclictest0-21swapper/022:19:210
2623599493cyclictest0-21swapper/021:59:540
2623599493cyclictest0-21swapper/021:59:540
2623599493cyclictest0-21swapper/021:59:540
2623599493cyclictest0-21swapper/021:49:180
2623599493cyclictest0-21swapper/021:49:180
2623599493cyclictest0-21swapper/020:17:500
2623599493cyclictest0-21swapper/020:17:500
2623599493cyclictest0-21swapper/019:38:150
2623599493cyclictest0-21swapper/019:38:150
2623599493cyclictest0-21swapper/019:38:150
2623599492cyclictest30918-21sendmail_mailqu21:18:180
2623599492cyclictest30918-21sendmail_mailqu21:18:180
2623599492cyclictest19903-21/usr/sbin/munin23:58:150
2623599492cyclictest19903-21/usr/sbin/munin23:58:150
2623599492cyclictest17729-21df_inode20:38:060
2623599492cyclictest17729-21df_inode20:38:060
2623599492cyclictest11827-21diskstats21:43:060
2623599492cyclictest11827-21diskstats21:43:060
2623599492cyclictest0-21swapper/019:53:030
2623599492cyclictest0-21swapper/019:53:030
2623599491cyclictest7152-21ssh22:34:530
2623599491cyclictest7152-21ssh22:34:530
2623599491cyclictest685-21/usr/sbin/munin21:23:010
2623599491cyclictest685-21/usr/sbin/munin21:23:010
2623599491cyclictest685-21/usr/sbin/munin21:23:010
2623599491cyclictest23531-21ssh23:05:000
2623599491cyclictest23531-21ssh23:05:000
2623599491cyclictest23324-21sh22:04:220
2623599491cyclictest23324-21sh22:04:220
2623599491cyclictest23324-21sh22:04:220
2623599491cyclictest21668-21/usr/sbin/munin20:53:130
2623599491cyclictest21668-21/usr/sbin/munin20:53:130
2623599491cyclictest19134-21ssh21:57:300
2623599491cyclictest19134-21ssh21:57:300
2623599491cyclictest19134-21ssh21:57:300
2623599491cyclictest19134-21ssh21:57:300
2623599491cyclictest18987-21ssh23:57:260
2623599491cyclictest18987-21ssh23:57:260
26235994918cyclictest0-21swapper/023:18:150
26235994918cyclictest0-21swapper/023:18:150
71480rcu_preempt0-21swapper/019:12:520
71480rcu_preempt0-21swapper/019:12:520
2623599483cyclictest0-21swapper/023:33:110
2623599483cyclictest0-21swapper/023:33:110
2623599482cyclictest29312-21ssh21:16:010
2623599482cyclictest29312-21ssh21:16:010
2623599482cyclictest1212-21ntp_states00:23:170
2623599482cyclictest1212-21ntp_states00:23:170
2623599482cyclictest1212-21ntp_states00:23:170
2623599482cyclictest10595-21taskset23:41:250
2623599482cyclictest10595-21taskset23:41:250
2623599481cyclictest8637-21apt-get00:38:000
2623599481cyclictest8637-21apt-get00:38:000
2623599481cyclictest8637-21apt-get00:38:000
71470rcu_preempt0-21swapper/121:55:141
71470rcu_preempt0-21swapper/121:55:141
71470rcu_preempt0-21swapper/121:55:141
71470rcu_preempt0-21swapper/121:55:141
2623599473cyclictest0-21swapper/019:33:110
2623599473cyclictest0-21swapper/019:33:110
2623599473cyclictest0-21swapper/019:13:160
2623599473cyclictest0-21swapper/019:13:160
2623599473cyclictest0-21swapper/019:13:160
2623599471cyclictest13213-21sendmail-msp20:22:540
2623599471cyclictest13213-21sendmail-msp20:22:540
26235994718cyclictest0-21swapper/020:33:140
26235994718cyclictest0-21swapper/020:33:140
71460rcu_preempt15062-1kworker/1:4H19:08:341
71460rcu_preempt15062-1kworker/1:4H19:08:341
26237994510cyclictest0-21swapper/223:05:562
26237994510cyclictest0-21swapper/223:05:562
71440rcu_preempt0-21swapper/123:32:451
71440rcu_preempt0-21swapper/123:32:451
71440rcu_preempt0-21swapper/120:58:491
71440rcu_preempt0-21swapper/120:58:491
71440rcu_preempt0-21swapper/100:23:421
71440rcu_preempt0-21swapper/100:23:421
71440rcu_preempt0-21swapper/100:23:421
71440rcu_preempt0-21swapper/100:14:251
71440rcu_preempt0-21swapper/100:14:251
71440rcu_preempt0-21swapper/100:14:251
71430rcu_preempt0-21swapper/223:38:152
71430rcu_preempt0-21swapper/223:38:152
71430rcu_preempt0-21swapper/221:52:022
71430rcu_preempt0-21swapper/221:52:022
26237994312cyclictest30439-21diskstats00:18:082
26237994312cyclictest30439-21diskstats00:18:082
26237994310cyclictest0-21swapper/221:47:042
26237994310cyclictest0-21swapper/221:47:042
71420rcu_preempt27201-21kworker/u8:222:34:242
71420rcu_preempt27201-21kworker/u8:222:34:242
71420rcu_preempt0-21swapper/119:57:591
71420rcu_preempt0-21swapper/119:57:591
71420rcu_preempt0-21swapper/119:57:591
2623799429cyclictest0-21swapper/223:43:302
2623799429cyclictest0-21swapper/223:43:302
2623799429cyclictest0-21swapper/223:43:302
71410rcu_preempt26594-21sh00:10:391
71410rcu_preempt26594-21sh00:10:391
71410rcu_preempt0-21swapper/323:53:053
71410rcu_preempt0-21swapper/323:53:053
71410rcu_preempt0-21swapper/123:49:181
71410rcu_preempt0-21swapper/123:49:181
71410rcu_preempt0-21swapper/123:49:181
71410rcu_preempt0-21swapper/123:13:111
71410rcu_preempt0-21swapper/123:13:111
71410rcu_preempt0-21swapper/122:28:121
71410rcu_preempt0-21swapper/122:28:121
71410rcu_preempt0-21swapper/122:28:121
2623799419cyclictest0-21swapper/222:18:062
2623799419cyclictest0-21swapper/222:18:062
26237994123cyclictest24201-21ssh00:06:272
26237994123cyclictest24201-21ssh00:06:272
26237994118cyclictest16479-21munin-run23:52:522
26237994118cyclictest16479-21munin-run23:52:522
26237994118cyclictest16479-21munin-run23:52:522
71400rcu_preempt0-21swapper/323:38:143
71400rcu_preempt0-21swapper/323:38:143
71400rcu_preempt0-21swapper/219:09:102
71400rcu_preempt0-21swapper/219:09:102
71400rcu_preempt0-21swapper/121:31:451
71400rcu_preempt0-21swapper/121:31:451
71400rcu_preempt0-21swapper/121:31:451
71400rcu_preempt0-21swapper/119:57:531
71400rcu_preempt0-21swapper/119:57:531
46650400irq/116-QManpo22907-2110:48:553
46650400irq/116-QManpo22907-2110:48:553
2623799409cyclictest0-21swapper/223:02:142
2623799409cyclictest0-21swapper/223:02:142
2623799409cyclictest0-21swapper/223:02:142
26237994010cyclictest0-21swapper/221:56:022
26237994010cyclictest0-21swapper/221:56:022
26237994010cyclictest0-21swapper/221:56:022
26237994010cyclictest0-21swapper/221:56:022
71390rcu_preempt26031-21diskmemload23:09:322
71390rcu_preempt26031-21diskmemload23:09:322
71390rcu_preempt26031-21diskmemload23:09:322
71390rcu_preempt12371-1kworker/2:1H22:44:562
71390rcu_preempt12371-1kworker/2:1H22:44:562
71390rcu_preempt0-21swapper/219:57:592
71390rcu_preempt0-21swapper/219:57:592
71390rcu_preempt0-21swapper/219:57:592
71390rcu_preempt0-21swapper/200:17:552
71390rcu_preempt0-21swapper/200:17:552
71390rcu_preempt0-21swapper/200:17:552
71390rcu_preempt0-21swapper/121:27:221
71390rcu_preempt0-21swapper/121:27:221
71390rcu_preempt0-21swapper/121:27:221
71390rcu_preempt0-21swapper/121:17:131
71390rcu_preempt0-21swapper/121:17:131
71390rcu_preempt0-21swapper/120:03:471
71390rcu_preempt0-21swapper/120:03:471
26237993921cyclictest6737-21users23:33:202
26237993921cyclictest6737-21users23:33:202
26237993915cyclictest0-21swapper/220:03:162
26237993915cyclictest0-21swapper/220:03:162
71380rcu_preempt6133-21/usr/sbin/munin23:33:091
71380rcu_preempt6133-21/usr/sbin/munin23:33:091
71380rcu_preempt4696-1kworker/3:2H22:32:343
71380rcu_preempt4696-1kworker/3:2H22:32:343
71380rcu_preempt4696-1kworker/3:2H22:32:343
71380rcu_preempt23066-21apt-get20:58:022
71380rcu_preempt23066-21apt-get20:58:022
71380rcu_preempt21852-21sendmail-msp23:05:061
71380rcu_preempt21852-21sendmail-msp23:05:061
71380rcu_preempt12692-1kworker/2:4H22:08:182
71380rcu_preempt12692-1kworker/2:4H22:08:182
71380rcu_preempt12692-1kworker/2:4H22:08:182
71380rcu_preempt12685-1kworker/1:2H21:50:291
71380rcu_preempt12685-1kworker/1:2H21:50:291
71380rcu_preempt0-21swapper/323:47:253
71380rcu_preempt0-21swapper/323:47:253
71380rcu_preempt0-21swapper/323:47:253
71380rcu_preempt0-21swapper/322:25:263
71380rcu_preempt0-21swapper/322:25:263
71380rcu_preempt0-21swapper/322:25:263
71380rcu_preempt0-21swapper/300:30:263
71380rcu_preempt0-21swapper/300:30:263
71380rcu_preempt0-21swapper/300:30:263
71380rcu_preempt0-21swapper/221:14:322
71380rcu_preempt0-21swapper/221:14:322
71380rcu_preempt0-21swapper/220:22:532
71380rcu_preempt0-21swapper/220:22:532
71380rcu_preempt0-21swapper/123:44:211
71380rcu_preempt0-21swapper/123:44:211
71380rcu_preempt0-21swapper/123:44:211
71380rcu_preempt0-21swapper/122:51:221
71380rcu_preempt0-21swapper/122:51:221
71380rcu_preempt0-21swapper/122:51:221
71380rcu_preempt0-21swapper/122:23:031
71380rcu_preempt0-21swapper/122:23:031
71380rcu_preempt0-21swapper/122:23:031
71380rcu_preempt0-21swapper/122:00:461
71380rcu_preempt0-21swapper/122:00:461
71380rcu_preempt0-21swapper/122:00:461
2623799389cyclictest0-21swapper/223:13:162
2623799389cyclictest0-21swapper/223:13:162
26237993819cyclictest1079-21meminfo00:23:122
26237993819cyclictest1079-21meminfo00:23:122
26237993819cyclictest1079-21meminfo00:23:122
26237993818cyclictest0-21swapper/222:26:592
26237993818cyclictest0-21swapper/222:26:592
26237993818cyclictest0-21swapper/222:26:592
26237993817cyclictest8944-21diskstats21:38:062
26237993817cyclictest8944-21diskstats21:38:062
26237993817cyclictest30928-21ntp_states19:28:172
26237993817cyclictest30928-21ntp_states19:28:172
26237993816cyclictest3279-21df_inode22:28:062
26237993816cyclictest3279-21df_inode22:28:062
26237993816cyclictest3279-21df_inode22:28:062
26237993815cyclictest0-21swapper/223:53:012
26237993815cyclictest0-21swapper/223:53:012
71370rcu_preempt5540-21ssh21:31:552
71370rcu_preempt5540-21ssh21:31:552
71370rcu_preempt5540-21ssh21:31:552
71370rcu_preempt23500-21ssh22:04:541
71370rcu_preempt23500-21ssh22:04:541
71370rcu_preempt23500-21ssh22:04:541
71370rcu_preempt19866-21ssh21:58:133
71370rcu_preempt19866-21ssh21:58:133
71370rcu_preempt19866-21ssh21:58:133
71370rcu_preempt11829-21copy20:18:031
71370rcu_preempt11829-21copy20:18:031
71370rcu_preempt0-21swapper/323:10:263
71370rcu_preempt0-21swapper/323:10:263
71370rcu_preempt0-21swapper/323:10:263
71370rcu_preempt0-21swapper/321:33:073
71370rcu_preempt0-21swapper/321:33:073
71370rcu_preempt0-21swapper/223:22:252
71370rcu_preempt0-21swapper/223:22:252
71370rcu_preempt0-21swapper/221:18:022
71370rcu_preempt0-21swapper/221:18:022
71370rcu_preempt0-21swapper/200:30:512
71370rcu_preempt0-21swapper/200:30:512
71370rcu_preempt0-21swapper/200:30:512
71370rcu_preempt0-21swapper/123:53:351
71370rcu_preempt0-21swapper/123:53:351
71370rcu_preempt0-21swapper/123:24:181
71370rcu_preempt0-21swapper/123:24:181
71370rcu_preempt0-21swapper/123:24:181
71370rcu_preempt0-21swapper/123:08:551
71370rcu_preempt0-21swapper/123:08:551
71370rcu_preempt0-21swapper/123:08:551
71370rcu_preempt0-21swapper/122:43:201
71370rcu_preempt0-21swapper/122:43:201
71370rcu_preempt0-21swapper/122:34:061
71370rcu_preempt0-21swapper/122:34:061
71370rcu_preempt0-21swapper/122:14:241
71370rcu_preempt0-21swapper/122:14:241
71370rcu_preempt0-21swapper/122:14:241
71370rcu_preempt0-21swapper/121:40:381
71370rcu_preempt0-21swapper/121:40:381
71370rcu_preempt0-21swapper/121:35:111
71370rcu_preempt0-21swapper/121:35:111
71370rcu_preempt0-21swapper/100:40:051
71370rcu_preempt0-21swapper/100:40:051
71370rcu_preempt0-21swapper/100:40:051
71370rcu_preempt0-21swapper/100:18:101
71370rcu_preempt0-21swapper/100:18:101
71370rcu_preempt0-21swapper/100:04:491
71370rcu_preempt0-21swapper/100:04:491
46250370irq/120-QManpo1959-2110:48:551
46250370irq/120-QManpo1959-2110:48:551
46250370irq/120-QManpo1959-2110:48:551
2623799379cyclictest26170-21irqstats21:08:102
2623799379cyclictest26170-21irqstats21:08:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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