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2026-04-15 - 08:01
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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 Apr 15, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1328599481cyclictest1959-21runrttasks22:37:381
1328599481cyclictest1959-21runrttasks22:37:381
46050460irq/122-QManpo12773-2110:48:550
46050460irq/122-QManpo12773-2110:48:550
1328599444cyclictest0-21swapper/100:27:421
1328599444cyclictest0-21swapper/100:27:421
1328599442cyclictest31154-21/usr/sbin/munin21:42:431
1328599442cyclictest31154-21/usr/sbin/munin21:42:431
1328599442cyclictest31154-21/usr/sbin/munin21:42:431
1328599442cyclictest0-21swapper/122:30:431
1328599442cyclictest0-21swapper/122:30:431
1328599441cyclictest32616-21sendmail-msp20:27:401
1328599441cyclictest32616-21sendmail-msp20:27:401
71430rcu_preempt0-21swapper/222:05:122
71430rcu_preempt0-21swapper/222:05:122
71430rcu_preempt0-21swapper/222:05:122
1328599433cyclictest540-21diskstats20:22:351
1328599433cyclictest540-21diskstats20:22:351
1328599433cyclictest12940-21meminfo22:07:411
1328599433cyclictest12940-21meminfo22:07:411
1328599433cyclictest12940-21meminfo22:07:411
1328599432cyclictest7816-21ntp_states20:47:461
1328599432cyclictest7816-21ntp_states20:47:461
1328599432cyclictest20993-21/usr/sbin/munin21:22:491
1328599432cyclictest20993-21/usr/sbin/munin21:22:491
1328599432cyclictest20993-21/usr/sbin/munin21:22:491
1328599432cyclictest14544-21irqstats00:07:411
1328599432cyclictest14544-21irqstats00:07:411
1328599432cyclictest14544-21irqstats00:07:411
1328599432cyclictest0-21swapper/100:22:241
1328599432cyclictest0-21swapper/100:22:241
71420rcu_preempt21135-1kworker/1:0H21:29:551
71420rcu_preempt21135-1kworker/1:0H21:29:551
71420rcu_preempt0-21swapper/219:43:442
71420rcu_preempt0-21swapper/219:43:442
1328599424cyclictest0-21swapper/121:52:331
1328599424cyclictest0-21swapper/121:52:331
1328599424cyclictest0-21swapper/121:52:331
1328599423cyclictest0-21swapper/123:24:561
1328599423cyclictest0-21swapper/123:24:561
1328599423cyclictest0-21swapper/123:24:561
1328599422cyclictest7231-21diskstats21:57:351
1328599422cyclictest7231-21diskstats21:57:351
1328599422cyclictest669-21diskstats23:42:351
1328599422cyclictest669-21diskstats23:42:351
1328599422cyclictest11851-21/usr/sbin/munin00:02:421
1328599422cyclictest11851-21/usr/sbin/munin00:02:421
1328599422cyclictest11851-21/usr/sbin/munin00:02:421
1328599422cyclictest0-21swapper/123:02:461
1328599422cyclictest0-21swapper/123:02:461
71410rcu_preempt0-21swapper/121:35:301
71410rcu_preempt0-21swapper/121:35:301
71410rcu_preempt0-21swapper/000:30:360
71410rcu_preempt0-21swapper/000:30:360
1328599416cyclictest16038-1kworker/1:1H00:16:511
1328599416cyclictest16038-1kworker/1:1H00:16:511
1328599414cyclictest0-21swapper/119:16:271
1328599414cyclictest0-21swapper/119:16:271
1328599413cyclictest0-21swapper/123:17:491
1328599413cyclictest0-21swapper/123:17:491
1328599413cyclictest0-21swapper/122:04:401
1328599413cyclictest0-21swapper/122:04:401
1328599413cyclictest0-21swapper/122:04:401
1328599413cyclictest0-21swapper/121:12:301
1328599413cyclictest0-21swapper/121:12:301
1328599413cyclictest0-21swapper/100:42:231
1328599413cyclictest0-21swapper/100:42:231
1328599413cyclictest0-21swapper/100:42:231
1328599412cyclictest27682-21ntp_states23:32:441
1328599412cyclictest27682-21ntp_states23:32:441
1328599412cyclictest21882-21users22:22:521
1328599412cyclictest21882-21users22:22:521
1328599412cyclictest0-21swapper/123:58:371
1328599412cyclictest0-21swapper/123:58:371
1328599412cyclictest0-21swapper/119:32:311
1328599412cyclictest0-21swapper/119:32:311
1328599411cyclictest32003-21apt-get22:42:321
1328599411cyclictest32003-21apt-get22:42:321
1328599411cyclictest32003-21apt-get22:42:321
1328599411cyclictest29973-21apt-get23:37:311
1328599411cyclictest29973-21apt-get23:37:311
1328599411cyclictest29973-21apt-get23:37:311
1328599411cyclictest27202-21apt-get20:02:311
1328599411cyclictest27202-21apt-get20:02:311
1328599411cyclictest27202-21apt-get20:02:311
1328599411cyclictest17714-21seq19:27:351
1328599411cyclictest17714-21seq19:27:351
1328599411cyclictest0-21swapper/122:32:321
1328599411cyclictest0-21swapper/122:32:321
1328599411cyclictest0-21swapper/122:32:321
71400rcu_preempt10388-21sendmail-msp19:08:011
71400rcu_preempt10388-21sendmail-msp19:08:011
71400rcu_preempt0-21swapper/222:08:202
71400rcu_preempt0-21swapper/222:08:202
71400rcu_preempt0-21swapper/222:08:202
71400rcu_preempt0-21swapper/021:59:220
71400rcu_preempt0-21swapper/021:59:220
71400rcu_preempt0-21swapper/021:54:130
71400rcu_preempt0-21swapper/021:54:130
71400rcu_preempt0-21swapper/021:54:130
71400rcu_preempt0-21swapper/019:42:390
71400rcu_preempt0-21swapper/019:42:390
46050400irq/122-QManpo23687-2110:48:550
46050400irq/122-QManpo23687-2110:48:550
2299400migration/212955-21taskset19:09:532
2299400migration/212955-21taskset19:09:532
1599400migration/010552-21diskmemload22:02:470
1599400migration/010552-21diskmemload22:02:470
1599400migration/010552-21diskmemload22:02:470
1328599404cyclictest0-21swapper/123:29:591
1328599404cyclictest0-21swapper/123:29:591
1328599404cyclictest0-21swapper/100:35:471
1328599404cyclictest0-21swapper/100:35:471
1328599403cyclictest0-21swapper/123:53:201
1328599403cyclictest0-21swapper/123:53:201
1328599403cyclictest0-21swapper/122:52:451
1328599403cyclictest0-21swapper/122:52:451
1328599403cyclictest0-21swapper/121:02:371
1328599403cyclictest0-21swapper/121:02:371
1328599403cyclictest0-21swapper/121:02:371
1328599403cyclictest0-21swapper/120:57:421
1328599403cyclictest0-21swapper/120:57:421
1328599403cyclictest0-21swapper/100:22:321
1328599403cyclictest0-21swapper/100:22:321
1328599403cyclictest0-21swapper/100:22:321
1328599402cyclictest2520-21df_inode22:47:361
1328599402cyclictest2520-21df_inode22:47:361
1328599402cyclictest23556-21ntp_states19:47:451
1328599402cyclictest23556-21ntp_states19:47:451
1328599402cyclictest13921-21ntp_states23:07:451
1328599402cyclictest13921-21ntp_states23:07:451
1328599402cyclictest13921-21ntp_states23:07:451
1328599402cyclictest13091-21diskstats21:07:371
1328599402cyclictest13091-21diskstats21:07:371
1328599401cyclictest0-21swapper/123:47:341
1328599401cyclictest0-21swapper/123:47:341
1328599401cyclictest0-21swapper/122:14:521
1328599401cyclictest0-21swapper/122:14:521
71390rcu_preempt26624-21grep19:57:463
71390rcu_preempt26624-21grep19:57:463
71390rcu_preempt26624-21grep19:57:463
71390rcu_preempt0-21swapper/221:56:102
71390rcu_preempt0-21swapper/221:56:102
71390rcu_preempt0-21swapper/221:56:102
71390rcu_preempt0-21swapper/221:28:212
71390rcu_preempt0-21swapper/221:28:212
46050390irq/122-QManpo20926-2110:48:550
46050390irq/122-QManpo20926-2110:48:550
1328599393cyclictest0-21swapper/122:20:041
1328599393cyclictest0-21swapper/122:20:041
1328599393cyclictest0-21swapper/120:33:031
1328599393cyclictest0-21swapper/120:33:031
1328599393cyclictest0-21swapper/120:17:401
1328599393cyclictest0-21swapper/120:17:401
1328599393cyclictest0-21swapper/119:42:331
1328599393cyclictest0-21swapper/119:42:331
1328599392cyclictest28550-21diskstats21:37:361
1328599392cyclictest28550-21diskstats21:37:361
1328599392cyclictest16496-21memory19:22:421
1328599392cyclictest16496-21memory19:22:421
1328599392cyclictest16496-21memory19:22:421
1328599392cyclictest0-21swapper/120:12:361
1328599392cyclictest0-21swapper/120:12:361
1328599391cyclictest16055-21ssh23:12:311
1328599391cyclictest16055-21ssh23:12:311
1328599391cyclictest1411-21apt-get21:47:311
1328599391cyclictest1411-21apt-get21:47:311
13285993919cyclictest27105-21cut20:02:211
13285993919cyclictest27105-21cut20:02:211
13285993919cyclictest27105-21cut20:02:211
71380rcu_preempt3668-21taskset22:49:110
71380rcu_preempt3668-21taskset22:49:110
71380rcu_preempt3133-21sh23:47:320
71380rcu_preempt3133-21sh23:47:320
71380rcu_preempt21693-21sh21:24:442
71380rcu_preempt21693-21sh21:24:442
71380rcu_preempt21693-21sh21:24:442
71380rcu_preempt0-21swapper/320:32:283
71380rcu_preempt0-21swapper/320:32:283
71380rcu_preempt0-21swapper/222:48:532
71380rcu_preempt0-21swapper/222:48:532
71380rcu_preempt0-21swapper/022:41:440
71380rcu_preempt0-21swapper/022:41:440
71380rcu_preempt0-21swapper/022:19:330
71380rcu_preempt0-21swapper/022:19:330
46650380irq/116-QManpo0-2110:48:553
46650380irq/116-QManpo0-2110:48:553
46050380irq/122-QManpo32455-2110:48:550
46050380irq/122-QManpo32455-2110:48:550
46050380irq/122-QManpo32455-2110:48:550
46050380irq/122-QManpo24021-2110:48:550
46050380irq/122-QManpo24021-2110:48:550
46050380irq/122-QManpo11263-2110:48:550
46050380irq/122-QManpo11263-2110:48:550
1328599382cyclictest21500-21munin-run19:42:191
1328599382cyclictest21500-21munin-run19:42:191
1328599382cyclictest17526-21ssh21:17:401
1328599382cyclictest17526-21ssh21:17:401
1328599382cyclictest17526-21ssh21:17:401
1328599381cyclictest0-21swapper/119:17:421
1328599381cyclictest0-21swapper/119:17:421
13285993817cyclictest0-21swapper/119:52:381
13285993817cyclictest0-21swapper/119:52:381
71370rcu_preempt24450-21kworker/2:423:51:052
71370rcu_preempt24450-21kworker/2:423:51:052
71370rcu_preempt23386-21sh23:24:432
71370rcu_preempt23386-21sh23:24:432
71370rcu_preempt23386-21sh23:24:432
71370rcu_preempt13791-21sh22:08:510
71370rcu_preempt13791-21sh22:08:510
71370rcu_preempt13791-21sh22:08:510
71370rcu_preempt11299-21crond21:02:190
71370rcu_preempt11299-21crond21:02:190
71370rcu_preempt0-21swapper/219:32:412
71370rcu_preempt0-21swapper/219:32:412
71370rcu_preempt0-21swapper/120:42:301
71370rcu_preempt0-21swapper/120:42:301
71370rcu_preempt0-21swapper/120:42:301
71370rcu_preempt0-21swapper/023:22:240
71370rcu_preempt0-21swapper/023:22:240
71370rcu_preempt0-21swapper/023:12:070
71370rcu_preempt0-21swapper/023:12:070
71370rcu_preempt0-21swapper/023:12:070
71370rcu_preempt0-21swapper/000:34:490
71370rcu_preempt0-21swapper/000:34:490
71370rcu_preempt0-21swapper/000:24:210
71370rcu_preempt0-21swapper/000:24:210
71370rcu_preempt0-21swapper/000:24:210
46050370irq/122-QManpo6321-2110:48:550
46050370irq/122-QManpo6321-2110:48:550
46050370irq/122-QManpo6321-2110:48:550
46050370irq/122-QManpo22356-2110:48:550
46050370irq/122-QManpo22356-2110:48:550
46050370irq/122-QManpo22356-2110:48:550
46050370irq/122-QManpo16952-2110:48:550
46050370irq/122-QManpo16952-2110:48:550
46050370irq/122-QManpo16952-2110:48:550
239792370sleep022616-1kworker/0:1H19:48:330
239792370sleep022616-1kworker/0:1H19:48:330
1328599373cyclictest0-21swapper/122:59:191
1328599373cyclictest0-21swapper/122:59:191
1328599372cyclictest0-21swapper/120:40:181
1328599372cyclictest0-21swapper/120:40:181
1328599372cyclictest0-21swapper/120:07:431
1328599372cyclictest0-21swapper/120:07:431
71360rcu_preempt18017-21latency_hist22:17:260
71360rcu_preempt18017-21latency_hist22:17:260
71360rcu_preempt0-21swapper/322:42:323
71360rcu_preempt0-21swapper/322:42:323
71360rcu_preempt0-21swapper/322:42:323
71360rcu_preempt0-21swapper/319:47:213
71360rcu_preempt0-21swapper/319:47:213
71360rcu_preempt0-21swapper/223:45:172
71360rcu_preempt0-21swapper/223:45:172
71360rcu_preempt0-21swapper/221:46:422
71360rcu_preempt0-21swapper/221:46:422
71360rcu_preempt0-21swapper/221:46:422
71360rcu_preempt0-21swapper/200:07:482
71360rcu_preempt0-21swapper/200:07:482
71360rcu_preempt0-21swapper/200:07:482
71360rcu_preempt0-21swapper/200:06:462
71360rcu_preempt0-21swapper/200:06:462
71360rcu_preempt0-21swapper/200:06:462
71360rcu_preempt0-21swapper/020:32:430
71360rcu_preempt0-21swapper/020:32:430
71360rcu_preempt0-21swapper/020:24:200
71360rcu_preempt0-21swapper/020:24:200
71360rcu_preempt0-21swapper/000:10:270
71360rcu_preempt0-21swapper/000:10:270
71360rcu_preempt0-21swapper/000:10:270
71360rcu_preempt0-21swapper/000:00:160
71360rcu_preempt0-21swapper/000:00:160
46050360irq/122-QManpo30920-2110:48:550
46050360irq/122-QManpo30920-2110:48:550
46050360irq/122-QManpo30920-2110:48:550
46050360irq/122-QManpo27906-2110:48:550
46050360irq/122-QManpo27906-2110:48:550
46050360irq/122-QManpo27906-2110:48:550
46050360irq/122-QManpo25777-2110:48:550
46050360irq/122-QManpo25777-2110:48:550
46050360irq/122-QManpo24644-2110:48:550
46050360irq/122-QManpo24644-2110:48:550
46050360irq/122-QManpo22607-2110:48:550
46050360irq/122-QManpo22607-2110:48:550
46050360irq/122-QManpo22607-2110:48:550
46050360irq/122-QManpo1959-2110:48:550
46050360irq/122-QManpo1959-2110:48:550
46050360irq/122-QManpo17550-2110:48:550
46050360irq/122-QManpo17550-2110:48:550
46050360irq/122-QManpo17550-2110:48:550
46050360irq/122-QManpo1021-2110:48:550
46050360irq/122-QManpo1021-2110:48:550
46050360irq/122-QManpo0-210
46050360irq/122-QManpo0-210
1328599362cyclictest8854-21df20:52:341
1328599362cyclictest8854-21df20:52:341
71350rcu_preempt0-21swapper/323:11:043
71350rcu_preempt0-21swapper/323:11:043
71350rcu_preempt0-21swapper/323:11:043
71350rcu_preempt0-21swapper/300:03:123
71350rcu_preempt0-21swapper/300:03:123
71350rcu_preempt0-21swapper/300:03:123
71350rcu_preempt0-21swapper/223:33:102
71350rcu_preempt0-21swapper/223:33:102
71350rcu_preempt0-21swapper/222:31:402
71350rcu_preempt0-21swapper/222:31:402
71350rcu_preempt0-21swapper/222:23:362
71350rcu_preempt0-21swapper/222:23:362
71350rcu_preempt0-21swapper/220:42:442
71350rcu_preempt0-21swapper/220:42:442
71350rcu_preempt0-21swapper/220:42:442
71350rcu_preempt0-21swapper/220:33:492
71350rcu_preempt0-21swapper/220:33:492
71350rcu_preempt0-21swapper/219:37:322
71350rcu_preempt0-21swapper/219:37:322
71350rcu_preempt0-21swapper/022:55:360
71350rcu_preempt0-21swapper/022:55:360
71350rcu_preempt0-21swapper/019:52:310
71350rcu_preempt0-21swapper/019:52:310
71350rcu_preempt0-21swapper/000:40:410
71350rcu_preempt0-21swapper/000:40:410
71350rcu_preempt0-21swapper/000:40:410
46650350irq/116-QManpo11328-2110:48:553
46650350irq/116-QManpo11328-2110:48:553
46650350irq/116-QManpo11328-2110:48:553
46050350irq/122-QManpo829-2110:48:550
46050350irq/122-QManpo829-2110:48:550
46050350irq/122-QManpo829-2110:48:550
46050350irq/122-QManpo7711-2110:48:550
46050350irq/122-QManpo7711-2110:48:550
46050350irq/122-QManpo6623-2110:48:550
46050350irq/122-QManpo6623-2110:48:550
46050350irq/122-QManpo28757-2110:48:550
46050350irq/122-QManpo28757-2110:48:550
46050350irq/122-QManpo28736-2110:48:550
46050350irq/122-QManpo28736-2110:48:550
46050350irq/122-QManpo21190-10
46050350irq/122-QManpo21190-10
46050350irq/122-QManpo1668-2110:48:550
46050350irq/122-QManpo1668-2110:48:550
46050350irq/122-QManpo10548-2110:48:550
46050350irq/122-QManpo10548-2110:48:550
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
71340rcu_preempt8994-21sh22:58:252
71340rcu_preempt8994-21sh22:58:252
71340rcu_preempt16802-21ssh22:14:332
71340rcu_preempt16802-21ssh22:14:332
71340rcu_preempt13120-21sh23:07:142
71340rcu_preempt13120-21sh23:07:142
71340rcu_preempt0-21swapper/323:31:183
71340rcu_preempt0-21swapper/323:31:183
71340rcu_preempt0-21swapper/223:37:292
71340rcu_preempt0-21swapper/223:37:292
71340rcu_preempt0-21swapper/223:37:292
71340rcu_preempt0-21swapper/223:07:522
71340rcu_preempt0-21swapper/223:07:522
71340rcu_preempt0-21swapper/223:07:522
71340rcu_preempt0-21swapper/222:40:122
71340rcu_preempt0-21swapper/222:40:122
71340rcu_preempt0-21swapper/221:39:222
71340rcu_preempt0-21swapper/221:39:222
71340rcu_preempt0-21swapper/221:32:292
71340rcu_preempt0-21swapper/221:32:292
71340rcu_preempt0-21swapper/220:22:502
71340rcu_preempt0-21swapper/220:22:502
71340rcu_preempt0-21swapper/200:19:292
71340rcu_preempt0-21swapper/200:19:292
71340rcu_preempt0-21swapper/020:02:510
71340rcu_preempt0-21swapper/020:02:510
71340rcu_preempt0-21swapper/020:02:510
71340rcu_preempt0-21swapper/020:01:330
71340rcu_preempt0-21swapper/020:01:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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