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2026-03-06 - 19:58
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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 Fri Mar 06, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71450rcu_preempt2987-21copy08:06:530
71450rcu_preempt2987-21copy08:06:530
71450rcu_preempt2987-21copy08:06:530
46650440irq/116-QManpo1369-213
46650440irq/116-QManpo1369-213
71430rcu_preempt0-21swapper/009:51:450
71430rcu_preempt0-21swapper/009:51:450
20106994317cyclictest1743-21aten_r4power_po08:01:490
20106994317cyclictest1743-21aten_r4power_po08:01:490
20106994317cyclictest1743-21aten_r4power_po08:01:490
20106994314cyclictest0-21swapper/007:16:560
20106994314cyclictest0-21swapper/007:16:560
20106994222cyclictest11806-21diskstats11:46:510
20106994222cyclictest11806-21diskstats11:46:510
20106994222cyclictest11806-21diskstats11:46:510
71410rcu_preempt8896-21if_eth309:46:552
71410rcu_preempt8896-21if_eth309:46:552
71410rcu_preempt19231-21sed07:06:562
71410rcu_preempt19231-21sed07:06:562
71410rcu_preempt10646-21sh11:44:353
71410rcu_preempt10646-21sh11:44:353
71410rcu_preempt0-21swapper/011:01:400
71410rcu_preempt0-21swapper/011:01:400
71410rcu_preempt0-21swapper/011:01:400
20106994120cyclictest23692-21ssh10:12:070
20106994120cyclictest23692-21ssh10:12:070
20106994120cyclictest19972-21diskstats09:06:520
20106994120cyclictest19972-21diskstats09:06:520
20106994119cyclictest6459-21ntp_states09:42:030
20106994119cyclictest6459-21ntp_states09:42:030
20106994119cyclictest14490-21interrupts08:46:540
20106994119cyclictest14490-21interrupts08:46:540
20106994119cyclictest14490-21interrupts08:46:540
20106994117cyclictest0-21swapper/008:51:560
20106994117cyclictest0-21swapper/008:51:560
71400rcu_preempt0-21swapper/012:24:320
71400rcu_preempt0-21swapper/012:24:320
71400rcu_preempt0-21swapper/010:36:210
71400rcu_preempt0-21swapper/010:36:210
71400rcu_preempt0-21swapper/009:22:350
71400rcu_preempt0-21swapper/009:22:350
71400rcu_preempt0-21swapper/009:22:350
20106994021cyclictest7316-21ssh10:41:410
20106994021cyclictest7316-21ssh10:41:410
20106994020cyclictest9052-21ssh12:38:300
20106994020cyclictest9052-21ssh12:38:300
20106994020cyclictest28827-21df_abs12:16:500
20106994020cyclictest28827-21df_abs12:16:500
20106994020cyclictest28827-21df_abs12:16:500
20106994020cyclictest18094-21users10:02:050
20106994020cyclictest18094-21users10:02:050
20106994020cyclictest18094-21users10:02:050
20106994019cyclictest25572-21/usr/sbin/munin10:16:540
20106994019cyclictest25572-21/usr/sbin/munin10:16:540
20106994019cyclictest23349-21memory07:21:570
20106994019cyclictest23349-21memory07:21:570
20106994019cyclictest23349-21memory07:21:570
20106994019cyclictest20032-21ssh11:03:220
20106994019cyclictest20032-21ssh11:03:220
20106994019cyclictest13767-21unixbench_multi10:52:060
20106994019cyclictest13767-21unixbench_multi10:52:060
20106994019cyclictest11570-21df08:36:490
20106994019cyclictest11570-21df08:36:490
20106994019cyclictest11570-21df08:36:490
20106994017cyclictest8051-21grep08:22:040
20106994017cyclictest8051-21grep08:22:040
71390rcu_preempt24728-1kworker/1:3H09:56:401
71390rcu_preempt24728-1kworker/1:3H09:56:401
71390rcu_preempt1369-21kworker/u8:007:41:451
71390rcu_preempt1369-21kworker/u8:007:41:451
71390rcu_preempt0-21swapper/311:31:403
71390rcu_preempt0-21swapper/311:31:403
71390rcu_preempt0-21swapper/209:16:462
71390rcu_preempt0-21swapper/209:16:462
71390rcu_preempt0-21swapper/209:16:462
71390rcu_preempt0-21swapper/012:02:290
71390rcu_preempt0-21swapper/012:02:290
71390rcu_preempt0-21swapper/009:01:480
71390rcu_preempt0-21swapper/009:01:480
71390rcu_preempt0-21swapper/008:42:210
71390rcu_preempt0-21swapper/008:42:210
20106993921cyclictest1039-21users09:32:060
20106993921cyclictest1039-21users09:32:060
20106993919cyclictest28631-21df10:21:500
20106993919cyclictest28631-21df10:21:500
20106993919cyclictest28631-21df10:21:500
20106993919cyclictest27968-21ssh12:15:200
20106993919cyclictest27968-21ssh12:15:200
20106993919cyclictest24136-21ssh11:11:400
20106993919cyclictest24136-21ssh11:11:400
20106993919cyclictest24136-21ssh11:11:400
20106993919cyclictest23837-21users12:07:030
20106993919cyclictest23837-21users12:07:030
20106993919cyclictest23837-21users12:07:030
20106993918cyclictest8838-21ssh11:41:440
20106993918cyclictest8838-21ssh11:41:440
20106993918cyclictest31409-21diskstats10:26:530
20106993918cyclictest31409-21diskstats10:26:530
20106993918cyclictest31409-21diskstats10:26:530
20106993917cyclictest30503-21ntp_states11:22:010
20106993917cyclictest30503-21ntp_states11:22:010
20106993916cyclictest5684-21munin-run09:41:350
20106993916cyclictest5684-21munin-run09:41:350
20106993916cyclictest0-21swapper/011:52:290
20106993916cyclictest0-21swapper/011:52:290
71380rcu_preempt32221-1kworker/3:0H07:56:453
71380rcu_preempt32221-1kworker/3:0H07:56:453
71380rcu_preempt18474-21sendmail-msp11:02:011
71380rcu_preempt18474-21sendmail-msp11:02:011
71380rcu_preempt18185-1kworker/1:2H10:11:471
71380rcu_preempt18185-1kworker/1:2H10:11:471
71380rcu_preempt0-21swapper/209:14:592
71380rcu_preempt0-21swapper/209:14:592
71380rcu_preempt0-21swapper/110:28:231
71380rcu_preempt0-21swapper/110:28:231
71380rcu_preempt0-21swapper/110:28:231
71380rcu_preempt0-21swapper/110:05:351
71380rcu_preempt0-21swapper/110:05:351
71380rcu_preempt0-21swapper/110:05:351
71380rcu_preempt0-21swapper/011:31:460
71380rcu_preempt0-21swapper/011:31:460
71380rcu_preempt0-21swapper/009:27:070
71380rcu_preempt0-21swapper/009:27:070
71380rcu_preempt0-21swapper/009:27:070
71380rcu_preempt0-21swapper/007:40:390
71380rcu_preempt0-21swapper/007:40:390
71380rcu_preempt0-21swapper/007:40:390
46650380irq/116-QManpo0-2110:48:553
46650380irq/116-QManpo0-2110:48:553
20106993819cyclictest7119-21munin-run08:21:360
20106993819cyclictest7119-21munin-run08:21:360
20106993819cyclictest7119-21munin-run08:21:360
20106993819cyclictest18212-21munin-run09:01:360
20106993819cyclictest18212-21munin-run09:01:360
20106993819cyclictest18212-21munin-run09:01:360
20106993818cyclictest24360-21diskstats09:16:540
20106993818cyclictest24360-21diskstats09:16:540
20106993818cyclictest24360-21diskstats09:16:540
20106993818cyclictest14277-21apt-get09:56:460
20106993818cyclictest14277-21apt-get09:56:460
20106993817cyclictest6221-21diskstats11:36:520
20106993817cyclictest6221-21diskstats11:36:520
20106993817cyclictest6221-21diskstats11:36:520
20106993816cyclictest17514-21df_abs11:56:510
20106993816cyclictest17514-21df_abs11:56:510
20106993816cyclictest17514-21df_abs11:56:510
20106993816cyclictest0-21swapper/011:29:020
20106993816cyclictest0-21swapper/011:29:020
20106993816cyclictest0-21swapper/011:15:050
20106993816cyclictest0-21swapper/011:15:050
20106993816cyclictest0-21swapper/011:15:050
20106993816cyclictest0-21swapper/010:51:380
20106993816cyclictest0-21swapper/010:51:380
20106993816cyclictest0-21swapper/010:42:040
20106993816cyclictest0-21swapper/010:42:040
20106993816cyclictest0-21swapper/009:47:310
20106993816cyclictest0-21swapper/009:47:310
20106993815cyclictest0-21swapper/011:17:000
20106993815cyclictest0-21swapper/011:17:000
20106993815cyclictest0-21swapper/011:17:000
20106993815cyclictest0-21swapper/008:26:540
20106993815cyclictest0-21swapper/008:26:540
81370rcu_sched0-21swapper/308:42:013
81370rcu_sched0-21swapper/308:42:013
71370rcu_preempt29936-21apt-get11:21:471
71370rcu_preempt29936-21apt-get11:21:471
71370rcu_preempt27640-21ssh09:22:041
71370rcu_preempt27640-21ssh09:22:041
71370rcu_preempt27640-21ssh09:22:041
71370rcu_preempt23089-21ssh11:09:111
71370rcu_preempt23089-21ssh11:09:111
71370rcu_preempt23089-21ssh11:09:111
71370rcu_preempt0-21swapper/310:41:363
71370rcu_preempt0-21swapper/310:41:363
71370rcu_preempt0-21swapper/310:03:353
71370rcu_preempt0-21swapper/310:03:353
71370rcu_preempt0-21swapper/310:03:353
71370rcu_preempt0-21swapper/210:31:392
71370rcu_preempt0-21swapper/210:31:392
71370rcu_preempt0-21swapper/210:31:392
71370rcu_preempt0-21swapper/111:44:511
71370rcu_preempt0-21swapper/111:44:511
71370rcu_preempt0-21swapper/110:25:241
71370rcu_preempt0-21swapper/110:25:241
71370rcu_preempt0-21swapper/110:25:241
71370rcu_preempt0-21swapper/109:31:291
71370rcu_preempt0-21swapper/109:31:291
71370rcu_preempt0-21swapper/109:31:291
46050370irq/122-QManpo0-210
46050370irq/122-QManpo0-210
20106993717cyclictest24055-21date09:16:430
20106993716cyclictest29028-21open_files07:42:020
20106993716cyclictest29028-21open_files07:42:020
20106993716cyclictest24326-21/usr/sbin/munin07:27:010
20106993716cyclictest24326-21/usr/sbin/munin07:27:010
20106993715cyclictest0-21swapper/012:32:090
20106993715cyclictest0-21swapper/012:32:090
20106993714cyclictest0-21swapper/012:26:550
20106993714cyclictest0-21swapper/012:26:550
20106993714cyclictest0-21swapper/007:12:020
20106993714cyclictest0-21swapper/007:12:020
71360rcu_preempt8115-21ntp_states12:37:002
71360rcu_preempt8115-21ntp_states12:37:002
71360rcu_preempt31031-1kworker/2:2H11:31:582
71360rcu_preempt31031-1kworker/2:2H11:31:582
71360rcu_preempt22443-1kworker/3:0H12:23:433
71360rcu_preempt22443-1kworker/3:0H12:23:433
71360rcu_preempt21177-1kworker/1:1H12:04:341
71360rcu_preempt21177-1kworker/1:1H12:04:341
71360rcu_preempt19713-21copy10:06:472
71360rcu_preempt19713-21copy10:06:472
71360rcu_preempt17691-21/usr/sbin/munin10:01:592
71360rcu_preempt17691-21/usr/sbin/munin10:01:592
71360rcu_preempt17691-21/usr/sbin/munin10:01:592
71360rcu_preempt0-21swapper/310:24:053
71360rcu_preempt0-21swapper/310:24:053
71360rcu_preempt0-21swapper/310:24:053
71360rcu_preempt0-21swapper/310:07:033
71360rcu_preempt0-21swapper/310:07:033
71360rcu_preempt0-21swapper/210:16:542
71360rcu_preempt0-21swapper/210:16:542
71360rcu_preempt0-21swapper/209:58:342
71360rcu_preempt0-21swapper/209:58:342
71360rcu_preempt0-21swapper/209:30:292
71360rcu_preempt0-21swapper/209:30:292
71360rcu_preempt0-21swapper/209:30:292
71360rcu_preempt0-21swapper/112:22:101
71360rcu_preempt0-21swapper/112:22:101
71360rcu_preempt0-21swapper/112:00:171
71360rcu_preempt0-21swapper/112:00:171
71360rcu_preempt0-21swapper/112:00:171
71360rcu_preempt0-21swapper/111:31:401
71360rcu_preempt0-21swapper/111:31:401
71360rcu_preempt0-21swapper/111:12:191
71360rcu_preempt0-21swapper/111:12:191
71360rcu_preempt0-21swapper/111:12:191
71360rcu_preempt0-21swapper/110:42:131
71360rcu_preempt0-21swapper/110:42:131
20106993628cyclictest25712-21apt-get07:31:460
20106993628cyclictest25712-21apt-get07:31:460
20106993617cyclictest4513-21tr08:11:480
20106993617cyclictest4513-21tr08:11:480
20106993617cyclictest22334-21ssh09:12:350
20106993615cyclictest0-21swapper/007:51:490
20106993615cyclictest0-21swapper/007:51:490
20106993613cyclictest0-21swapper/008:36:350
20106993613cyclictest0-21swapper/008:36:350
71350rcu_preempt28368-21sh09:23:262
71350rcu_preempt28368-21sh09:23:262
71350rcu_preempt28368-21sh09:23:262
71350rcu_preempt23865-21diskmemload09:16:333
71350rcu_preempt23865-21diskmemload09:16:333
71350rcu_preempt21625-21sh09:11:571
71350rcu_preempt21625-21sh09:11:571
71350rcu_preempt19857-21sh11:02:523
71350rcu_preempt19857-21sh11:02:523
71350rcu_preempt16351-21ssh09:59:591
71350rcu_preempt16351-21ssh09:59:591
71350rcu_preempt1428-21apt-get10:32:003
71350rcu_preempt1428-21apt-get10:32:003
71350rcu_preempt0-21swapper/311:47:033
71350rcu_preempt0-21swapper/311:47:033
71350rcu_preempt0-21swapper/311:47:033
71350rcu_preempt0-21swapper/311:16:503
71350rcu_preempt0-21swapper/311:16:503
71350rcu_preempt0-21swapper/311:16:503
71350rcu_preempt0-21swapper/307:31:403
71350rcu_preempt0-21swapper/307:31:403
71350rcu_preempt0-21swapper/210:44:302
71350rcu_preempt0-21swapper/210:44:302
71350rcu_preempt0-21swapper/208:06:452
71350rcu_preempt0-21swapper/208:06:452
71350rcu_preempt0-21swapper/208:06:452
71350rcu_preempt0-21swapper/208:02:082
71350rcu_preempt0-21swapper/208:02:082
71350rcu_preempt0-21swapper/208:02:082
71350rcu_preempt0-21swapper/207:22:332
71350rcu_preempt0-21swapper/207:22:332
71350rcu_preempt0-21swapper/207:22:332
71350rcu_preempt0-21swapper/112:15:451
71350rcu_preempt0-21swapper/112:15:451
71350rcu_preempt0-21swapper/111:52:551
71350rcu_preempt0-21swapper/111:52:551
71350rcu_preempt0-21swapper/111:50:391
71350rcu_preempt0-21swapper/111:50:391
71350rcu_preempt0-21swapper/111:50:391
71350rcu_preempt0-21swapper/111:17:031
71350rcu_preempt0-21swapper/111:17:031
71350rcu_preempt0-21swapper/111:17:031
71350rcu_preempt0-21swapper/110:51:471
71350rcu_preempt0-21swapper/110:51:471
71350rcu_preempt0-21swapper/110:37:431
71350rcu_preempt0-21swapper/110:37:431
71350rcu_preempt0-21swapper/110:07:151
71350rcu_preempt0-21swapper/110:07:151
71350rcu_preempt0-21swapper/109:45:551
71350rcu_preempt0-21swapper/109:45:551
71350rcu_preempt0-21swapper/109:19:551
71350rcu_preempt0-21swapper/109:19:551
71350rcu_preempt0-21swapper/109:19:551
20106993519cyclictest19673-21apt-get10:06:570
20106993519cyclictest19673-21apt-get10:06:570
20106993516cyclictest31097-21sshd07:51:130
20106993516cyclictest31097-21sshd07:51:130
20106993516cyclictest31097-21sshd07:51:130
20106993513cyclictest0-21swapper/008:01:240
20106993513cyclictest0-21swapper/008:01:240
71340rcu_preempt32087-21chrt10:27:053
71340rcu_preempt32087-21chrt10:27:053
71340rcu_preempt32087-21chrt10:27:053
71340rcu_preempt31348-21ssh12:21:363
71340rcu_preempt31348-21ssh12:21:363
71340rcu_preempt31348-21ssh12:21:363
71340rcu_preempt31031-1kworker/2:2H11:22:342
71340rcu_preempt31031-1kworker/2:2H11:22:342
71340rcu_preempt29108-21sh09:25:383
71340rcu_preempt29108-21sh09:25:383
71340rcu_preempt29108-21sh09:25:383
71340rcu_preempt26945-1kworker/1:1H11:32:061
71340rcu_preempt26945-1kworker/1:1H11:32:061
71340rcu_preempt1958-21snmpd09:47:021
71340rcu_preempt1958-21snmpd09:47:021
71340rcu_preempt19122-21runrttasks11:02:012
71340rcu_preempt19122-21runrttasks11:02:012
71340rcu_preempt18557-21ssh11:01:401
71340rcu_preempt18557-21ssh11:01:401
71340rcu_preempt18557-21ssh11:01:401
71340rcu_preempt1616-21apt-get10:31:471
71340rcu_preempt1616-21apt-get10:31:471
71340rcu_preempt0-21swapper/311:22:403
71340rcu_preempt0-21swapper/311:22:403
71340rcu_preempt0-21swapper/309:32:313
71340rcu_preempt0-21swapper/309:32:313
71340rcu_preempt0-21swapper/308:11:463
71340rcu_preempt0-21swapper/308:11:463
71340rcu_preempt0-21swapper/212:34:072
71340rcu_preempt0-21swapper/212:34:072
71340rcu_preempt0-21swapper/212:21:402
71340rcu_preempt0-21swapper/212:21:402
71340rcu_preempt0-21swapper/212:21:402
71340rcu_preempt0-21swapper/212:11:112
71340rcu_preempt0-21swapper/212:11:112
71340rcu_preempt0-21swapper/212:11:112
71340rcu_preempt0-21swapper/210:36:492
71340rcu_preempt0-21swapper/210:36:492
71340rcu_preempt0-21swapper/209:01:362
71340rcu_preempt0-21swapper/209:01:362
71340rcu_preempt0-21swapper/209:01:362
71340rcu_preempt0-21swapper/208:14:072
71340rcu_preempt0-21swapper/208:14:072
71340rcu_preempt0-21swapper/112:38:311
71340rcu_preempt0-21swapper/112:38:311
71340rcu_preempt0-21swapper/112:16:571
71340rcu_preempt0-21swapper/112:16:571
71340rcu_preempt0-21swapper/112:16:571
71340rcu_preempt0-21swapper/108:47:041
71340rcu_preempt0-21swapper/108:47:041
71340rcu_preempt0-21swapper/108:47:041
71340rcu_preempt0-21swapper/108:22:371
71340rcu_preempt0-21swapper/108:22:371
71340rcu_preempt0-21swapper/107:31:371
71340rcu_preempt0-21swapper/107:31:371
1699340migration/119171-21/usr/sbin/munin07:06:541
1699340migration/119171-21/usr/sbin/munin07:06:541
71330rcu_preempt3629-21ps09:37:011
71330rcu_preempt3629-21ps09:37:011
71330rcu_preempt31062-21kworker/1:008:02:391
71330rcu_preempt31062-21kworker/1:008:02:391
71330rcu_preempt31062-21kworker/1:008:02:391
71330rcu_preempt28453-21apt-get10:21:462
71330rcu_preempt28453-21apt-get10:21:462
71330rcu_preempt28453-21apt-get10:21:462
71330rcu_preempt27946-1kworker/2:0H09:41:552
71330rcu_preempt27946-1kworker/2:0H09:41:552
71330rcu_preempt26650-1kworker/1:2H07:56:551
71330rcu_preempt26650-1kworker/1:2H07:56:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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