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2026-09-08 - 06:12
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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 Tue Sep 08, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71600rcu_preempt30383-21diskstats22:10:100
71600rcu_preempt30383-21diskstats22:10:100
30427994820cyclictest16104-21ssh22:41:191
30427994820cyclictest16104-21ssh22:41:191
30427994820cyclictest16104-21ssh22:41:191
30427994627cyclictest28300-21ssh22:05:291
30427994627cyclictest28300-21ssh22:05:291
71450rcu_preempt0-21swapper/122:25:221
71450rcu_preempt0-21swapper/122:25:221
30427994514cyclictest25306-1kworker/1:1H21:34:251
30427994514cyclictest25306-1kworker/1:1H21:34:251
46050440irq/122-QManpo30229-2110:48:550
46050440irq/122-QManpo30229-2110:48:550
30427994425cyclictest11774-21/usr/sbin/munin20:05:081
30427994425cyclictest11774-21/usr/sbin/munin20:05:081
30427994320cyclictest10019-1kworker/1:0H00:40:141
30427994320cyclictest10019-1kworker/1:0H00:40:141
30427994320cyclictest10019-1kworker/1:0H00:40:141
30427994215cyclictest0-21swapper/122:12:191
30427994215cyclictest0-21swapper/122:12:191
71410rcu_preempt0-21swapper/221:50:052
71410rcu_preempt0-21swapper/221:50:052
71410rcu_preempt0-21swapper/121:19:011
71410rcu_preempt0-21swapper/121:19:011
46650410irq/116-QManpo30034-2110:48:553
46650410irq/116-QManpo30034-2110:48:553
46450410irq/118-QManpo30034-2110:48:552
46450410irq/118-QManpo30034-2110:48:552
30427994125cyclictest2123-21irqstats19:30:111
30427994125cyclictest2123-21irqstats19:30:111
30427994123cyclictest20410-21/usr/sbin/munin22:50:031
30427994123cyclictest20410-21/usr/sbin/munin22:50:031
30427994121cyclictest9336-21/usr/sbin/munin22:30:091
30427994121cyclictest9336-21/usr/sbin/munin22:30:091
30427994121cyclictest9336-21/usr/sbin/munin22:30:091
30427994121cyclictest8178-21grep19:50:191
30427994121cyclictest8178-21grep19:50:191
30427994121cyclictest12969-21/usr/sbin/munin21:40:111
30427994121cyclictest12969-21/usr/sbin/munin21:40:111
30427994120cyclictest26112-21/usr/sbin/munin23:00:211
30427994120cyclictest26112-21/usr/sbin/munin23:00:211
30427994120cyclictest19121-21latency_hist23:44:531
30427994120cyclictest19121-21latency_hist23:44:531
30427994119cyclictest18842-21ssh22:46:061
30427994119cyclictest18842-21ssh22:46:061
30427994116cyclictest0-21swapper/122:03:291
30427994116cyclictest0-21swapper/122:03:291
30427994024cyclictest7385-21/usr/sbin/munin00:20:191
30427994024cyclictest7385-21/usr/sbin/munin00:20:191
30427994020cyclictest28407-21/usr/sbin/munin21:05:101
30427994020cyclictest28407-21/usr/sbin/munin21:05:101
30427994020cyclictest17257-21df_abs20:25:061
30427994020cyclictest17257-21df_abs20:25:061
30427994020cyclictest12329-21apt-get00:30:031
30427994020cyclictest12329-21apt-get00:30:031
30427994020cyclictest12329-21apt-get00:30:031
30427994019cyclictest4232-21sed21:24:521
30427994019cyclictest4232-21sed21:24:521
30427994019cyclictest4232-21sed21:24:521
30427994019cyclictest10961-1kworker/1:0H21:50:091
30427994019cyclictest10961-1kworker/1:0H21:50:091
30427994018cyclictest16511-21unixbench_singl20:20:251
30427994018cyclictest16511-21unixbench_singl20:20:251
71390rcu_preempt0-21swapper/123:07:351
71390rcu_preempt0-21swapper/123:07:351
46050390irq/122-QManpo32092-2110:48:550
46050390irq/122-QManpo32092-2110:48:550
30427993921cyclictest1959-21runrttasks23:13:131
30427993921cyclictest1959-21runrttasks23:13:131
30427993920cyclictest30437-21meminfo19:15:131
30427993920cyclictest30437-21meminfo19:15:131
30427993919cyclictest4842-21ssh00:15:261
30427993919cyclictest4842-21ssh00:15:261
30427993919cyclictest23300-21seq21:57:261
30427993919cyclictest23300-21seq21:57:261
30427993919cyclictest22644-21snmpd21:46:091
30427993919cyclictest22644-21snmpd21:46:091
30427993919cyclictest17892-21copy00:39:561
30427993919cyclictest17892-21copy00:39:561
30427993919cyclictest17892-21copy00:39:561
30427993918cyclictest13376-21munin-run23:34:521
30427993918cyclictest13376-21munin-run23:34:521
71380rcu_preempt4214-21sendmail-msp21:25:351
71380rcu_preempt4214-21sendmail-msp21:25:351
71380rcu_preempt4214-21sendmail-msp21:25:351
71380rcu_preempt0-21swapper/322:45:143
71380rcu_preempt0-21swapper/322:45:143
71380rcu_preempt0-21swapper/123:45:101
71380rcu_preempt0-21swapper/123:45:101
71380rcu_preempt0-21swapper/123:45:101
71380rcu_preempt0-21swapper/100:25:081
71380rcu_preempt0-21swapper/100:25:081
71380rcu_preempt0-21swapper/021:59:420
71380rcu_preempt0-21swapper/021:59:420
46050380irq/122-QManpo8366-10
46050380irq/122-QManpo8366-10
46050380irq/122-QManpo18471-2110:48:550
46050380irq/122-QManpo18471-2110:48:550
46050380irq/122-QManpo18471-2110:48:550
46050380irq/122-QManpo17323-2110:48:550
46050380irq/122-QManpo17323-2110:48:550
30427993822cyclictest20074-21df_inode20:35:061
30427993822cyclictest20074-21df_inode20:35:061
30427993821cyclictest12316-21ssh21:38:391
30427993821cyclictest12316-21ssh21:38:391
30427993820cyclictest13553-21apt-get23:35:021
30427993820cyclictest13553-21apt-get23:35:021
30427993819cyclictest9289-21ssh23:26:371
30427993819cyclictest9289-21ssh23:26:371
30427993819cyclictest9289-21ssh23:26:371
30427993819cyclictest23480-1chrt23:51:341
30427993819cyclictest23480-1chrt23:51:341
30427993819cyclictest23480-1chrt23:51:341
30427993819cyclictest22087-21users20:40:211
30427993819cyclictest22087-21users20:40:211
30427993819cyclictest1959-21runrttasks20:04:361
30427993819cyclictest1959-21runrttasks20:04:361
30427993816cyclictest0-21swapper/100:05:041
30427993816cyclictest0-21swapper/100:05:041
30427993815cyclictest0-21swapper/119:20:021
30427993815cyclictest0-21swapper/119:20:021
30427993815cyclictest0-21swapper/119:20:021
71370rcu_preempt3572-21seq23:16:251
71370rcu_preempt3572-21seq23:16:251
71370rcu_preempt0-21swapper/322:17:403
71370rcu_preempt0-21swapper/322:17:403
71370rcu_preempt0-21swapper/200:30:022
71370rcu_preempt0-21swapper/200:30:022
71370rcu_preempt0-21swapper/200:30:022
46050370irq/122-QManpo6148-2110:48:550
46050370irq/122-QManpo6148-2110:48:550
46050370irq/122-QManpo22485-2110:48:550
46050370irq/122-QManpo22485-2110:48:550
46050370irq/122-QManpo16857-2110:48:550
46050370irq/122-QManpo16857-2110:48:550
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
30427993730cyclictest24240-21/usr/sbin/munin22:55:261
30427993730cyclictest24240-21/usr/sbin/munin22:55:261
30427993729cyclictest22863-21diskstats20:45:091
30427993729cyclictest22863-21diskstats20:45:091
30427993729cyclictest13333-21memory20:10:151
30427993729cyclictest13333-21memory20:10:151
30427993722cyclictest28231-21memory00:00:141
30427993722cyclictest28231-21memory00:00:141
30427993722cyclictest28231-21memory00:00:141
30427993718cyclictest14595-21interrupts20:15:101
30427993718cyclictest14595-21interrupts20:15:101
30427993716cyclictest5058-21apt-get23:20:041
30427993716cyclictest5058-21apt-get23:20:041
30427993715cyclictest3430-21/usr/sbin/munin22:20:111
30427993715cyclictest3430-21/usr/sbin/munin22:20:111
30427993715cyclictest3430-21/usr/sbin/munin22:20:111
113822370sleep04293-1kworker/0:2H22:33:560
113822370sleep04293-1kworker/0:2H22:33:560
113822370sleep04293-1kworker/0:2H22:33:560
100650370irq/38-i2c-mpc0-21swapper/020:37:570
100650370irq/38-i2c-mpc0-21swapper/020:37:570
71360rcu_preempt0-21swapper/321:38:263
71360rcu_preempt0-21swapper/321:38:263
71360rcu_preempt0-21swapper/300:26:163
71360rcu_preempt0-21swapper/300:26:163
71360rcu_preempt0-21swapper/100:10:381
71360rcu_preempt0-21swapper/100:10:381
71360rcu_preempt0-21swapper/023:59:540
71360rcu_preempt0-21swapper/023:59:540
71360rcu_preempt0-21swapper/023:59:540
71360rcu_preempt0-21swapper/022:52:180
71360rcu_preempt0-21swapper/022:52:180
71360rcu_preempt0-21swapper/022:20:290
71360rcu_preempt0-21swapper/022:20:290
71360rcu_preempt0-21swapper/022:20:290
71360rcu_preempt0-21swapper/022:08:200
71360rcu_preempt0-21swapper/022:08:200
71360rcu_preempt0-21swapper/000:36:340
71360rcu_preempt0-21swapper/000:36:340
71360rcu_preempt0-21swapper/000:36:340
46050360irq/122-QManpo8093-2110:48:550
46050360irq/122-QManpo8093-2110:48:550
46050360irq/122-QManpo3256-2110:48:550
46050360irq/122-QManpo3256-2110:48:550
46050360irq/122-QManpo29425-2110:48:550
46050360irq/122-QManpo29425-2110:48:550
46050360irq/122-QManpo24629-2110:48:550
46050360irq/122-QManpo24629-2110:48:550
46050360irq/122-QManpo23463-2110:48:550
46050360irq/122-QManpo23463-2110:48:550
46050360irq/122-QManpo22057-2110:48:550
46050360irq/122-QManpo22057-2110:48:550
46050360irq/122-QManpo22057-2110:48:550
46050360irq/122-QManpo11843-2110:48:550
46050360irq/122-QManpo11843-2110:48:550
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
30427993623cyclictest1959-21runrttasks19:41:031
30427993623cyclictest1959-21runrttasks19:41:031
30427993620cyclictest1959-21runrttasks20:50:201
30427993620cyclictest1959-21runrttasks20:50:201
30427993618cyclictest532-21df19:25:041
30427993618cyclictest532-21df19:25:041
30427993617cyclictest29553-21apt-get21:10:061
30427993617cyclictest29553-21apt-get21:10:061
30427993617cyclictest25495-21ntpdc23:55:191
30427993617cyclictest25495-21ntpdc23:55:191
30427993617cyclictest25495-21ntpdc23:55:191
30427993615cyclictest0-21swapper/122:39:051
30427993615cyclictest0-21swapper/122:39:051
30427993615cyclictest0-21swapper/122:15:121
30427993615cyclictest0-21swapper/122:15:121
71350rcu_preempt0-21swapper/300:06:023
71350rcu_preempt0-21swapper/300:06:023
71350rcu_preempt0-21swapper/221:56:542
71350rcu_preempt0-21swapper/221:56:542
71350rcu_preempt0-21swapper/221:15:182
71350rcu_preempt0-21swapper/221:15:182
71350rcu_preempt0-21swapper/023:47:490
71350rcu_preempt0-21swapper/023:47:490
71350rcu_preempt0-21swapper/023:47:490
71350rcu_preempt0-21swapper/021:17:190
71350rcu_preempt0-21swapper/021:17:190
46050350irq/122-QManpo32046-2110:48:550
46050350irq/122-QManpo32046-2110:48:550
46050350irq/122-QManpo24542-2110:48:550
46050350irq/122-QManpo24542-2110:48:550
46050350irq/122-QManpo16938-2110:48:550
46050350irq/122-QManpo16938-2110:48:550
46050350irq/122-QManpo14109-2110:48:550
46050350irq/122-QManpo14109-2110:48:550
46050350irq/122-QManpo13145-2110:48:550
46050350irq/122-QManpo13145-2110:48:550
45872351sleep04650-21df_inode21:25:100
45872351sleep04650-21df_inode21:25:100
45872351sleep04650-21df_inode21:25:100
30427993520cyclictest25386-21/usr/sbin/munin20:55:161
30427993520cyclictest25386-21/usr/sbin/munin20:55:161
30427993517cyclictest6208-21df_inode19:45:051
30427993517cyclictest6208-21df_inode19:45:051
30427993517cyclictest4059-21users19:35:211
30427993517cyclictest4059-21users19:35:211
30427993517cyclictest26999-21df_inode21:00:061
30427993517cyclictest26999-21df_inode21:00:061
30427993517cyclictest18703-21diskstats20:30:081
30427993517cyclictest18703-21diskstats20:30:081
164752350sleep04293-1kworker/0:2H22:42:170
164752350sleep04293-1kworker/0:2H22:42:170
164752350sleep04293-1kworker/0:2H22:42:170
71340rcu_preempt10068-21runrttasks19:59:543
71340rcu_preempt10068-21runrttasks19:59:543
71340rcu_preempt0-21swapper/323:44:323
71340rcu_preempt0-21swapper/323:44:323
71340rcu_preempt0-21swapper/322:06:463
71340rcu_preempt0-21swapper/322:06:463
71340rcu_preempt0-21swapper/300:41:123
71340rcu_preempt0-21swapper/300:41:123
71340rcu_preempt0-21swapper/300:41:123
71340rcu_preempt0-21swapper/223:09:032
71340rcu_preempt0-21swapper/223:09:032
71340rcu_preempt0-21swapper/221:06:482
71340rcu_preempt0-21swapper/221:06:482
71340rcu_preempt0-21swapper/219:30:202
71340rcu_preempt0-21swapper/219:30:202
71340rcu_preempt0-21swapper/021:52:450
71340rcu_preempt0-21swapper/021:52:450
71340rcu_preempt0-21swapper/019:32:110
71340rcu_preempt0-21swapper/019:32:110
55102340sleep028149-1kworker/0:0H19:41:010
55102340sleep028149-1kworker/0:0H19:41:010
46050340irq/122-QManpo9397-2110:48:550
46050340irq/122-QManpo9397-2110:48:550
46050340irq/122-QManpo9002-2110:48:550
46050340irq/122-QManpo9002-2110:48:550
46050340irq/122-QManpo32685-2110:48:550
46050340irq/122-QManpo32685-2110:48:550
46050340irq/122-QManpo32685-2110:48:550
46050340irq/122-QManpo27875-10
46050340irq/122-QManpo27875-10
46050340irq/122-QManpo27875-10
46050340irq/122-QManpo17643-2110:48:550
46050340irq/122-QManpo17643-2110:48:550
46050340irq/122-QManpo1746-2110:48:550
46050340irq/122-QManpo1746-2110:48:550
46050340irq/122-QManpo1746-2110:48:550
46050340irq/122-QManpo14867-10
46050340irq/122-QManpo14867-10
46050340irq/122-QManpo13234-2110:48:550
46050340irq/122-QManpo13234-2110:48:550
46050340irq/122-QManpo0-210
46050340irq/122-QManpo0-210
120502340sleep08366-1kworker/0:2H21:37:570
120502340sleep08366-1kworker/0:2H21:37:570
71330rcu_preempt28758-21taskset23:04:502
71330rcu_preempt28758-21taskset23:04:502
71330rcu_preempt11456-21kworker/2:121:26:192
71330rcu_preempt11456-21kworker/2:121:26:192
71330rcu_preempt11456-21kworker/2:121:26:192
71330rcu_preempt0-21swapper/323:45:053
71330rcu_preempt0-21swapper/323:45:053
71330rcu_preempt0-21swapper/323:45:053
71330rcu_preempt0-21swapper/323:21:583
71330rcu_preempt0-21swapper/323:21:583
71330rcu_preempt0-21swapper/322:59:503
71330rcu_preempt0-21swapper/322:59:503
71330rcu_preempt0-21swapper/321:54:463
71330rcu_preempt0-21swapper/321:54:463
71330rcu_preempt0-21swapper/320:07:313
71330rcu_preempt0-21swapper/320:07:313
71330rcu_preempt0-21swapper/223:17:512
71330rcu_preempt0-21swapper/223:17:512
71330rcu_preempt0-21swapper/222:45:422
71330rcu_preempt0-21swapper/222:45:422
71330rcu_preempt0-21swapper/222:44:452
71330rcu_preempt0-21swapper/222:44:452
71330rcu_preempt0-21swapper/222:44:452
71330rcu_preempt0-21swapper/222:35:132
71330rcu_preempt0-21swapper/222:35:132
71330rcu_preempt0-21swapper/221:43:112
71330rcu_preempt0-21swapper/221:43:112
71330rcu_preempt0-21swapper/221:21:292
71330rcu_preempt0-21swapper/221:21:292
71330rcu_preempt0-21swapper/221:21:292
71330rcu_preempt0-21swapper/220:21:512
71330rcu_preempt0-21swapper/220:21:512
71330rcu_preempt0-21swapper/200:05:222
71330rcu_preempt0-21swapper/200:05:222
71330rcu_preempt0-21swapper/200:03:272
71330rcu_preempt0-21swapper/200:03:272
71330rcu_preempt0-21swapper/200:03:272
71330rcu_preempt0-21swapper/023:31:120
71330rcu_preempt0-21swapper/023:31:120
71330rcu_preempt0-21swapper/020:49:590
71330rcu_preempt0-21swapper/020:49:590
46650330irq/116-QManpo0-2110:48:553
46650330irq/116-QManpo0-2110:48:553
46050330irq/122-QManpo8532-2110:48:550
46050330irq/122-QManpo8532-2110:48:550
46050330irq/122-QManpo8532-2110:48:550
46050330irq/122-QManpo12928-10
46050330irq/122-QManpo12928-10
46050330irq/122-QManpo0-210
46050330irq/122-QManpo0-210
46050330irq/122-QManpo0-210
46050330irq/122-QManpo0-210
46050330irq/122-QManpo0-210
46050330irq/122-QManpo0-210
30427993324cyclictest8744-21apt-get19:55:041
30427993324cyclictest8744-21apt-get19:55:041
71320rcu_preempt2899migration/322:32:543
71320rcu_preempt2899migration/322:32:543
71320rcu_preempt2899migration/322:32:543
71320rcu_preempt18189-21runrttasks20:28:122
71320rcu_preempt18189-21runrttasks20:28:122
71320rcu_preempt0-21swapper/323:15:463
71320rcu_preempt0-21swapper/323:15:463
71320rcu_preempt0-21swapper/322:26:013
71320rcu_preempt0-21swapper/322:26:013
71320rcu_preempt0-21swapper/322:13:193
71320rcu_preempt0-21swapper/322:13:193
71320rcu_preempt0-21swapper/322:03:513
71320rcu_preempt0-21swapper/322:03:513
71320rcu_preempt0-21swapper/321:21:213
71320rcu_preempt0-21swapper/321:21:213
71320rcu_preempt0-21swapper/321:21:213
71320rcu_preempt0-21swapper/223:51:082
71320rcu_preempt0-21swapper/223:51:082
71320rcu_preempt0-21swapper/223:51:082
71320rcu_preempt0-21swapper/223:40:472
71320rcu_preempt0-21swapper/223:40:472
71320rcu_preempt0-21swapper/223:12:202
71320rcu_preempt0-21swapper/223:12:202
71320rcu_preempt0-21swapper/222:16:242
71320rcu_preempt0-21swapper/222:16:242
71320rcu_preempt0-21swapper/221:35:532
71320rcu_preempt0-21swapper/221:35:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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