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2026-04-07 - 12:34
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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 Tue Apr 07, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41492770chrt46450irq/118-QMan10:48:552
41492770chrt46450irq/118-QMan10:48:552
71700rcu_preempt0-21swapper/223:03:422
71700rcu_preempt0-21swapper/223:03:422
71700rcu_preempt0-21swapper/223:03:422
71580rcu_preempt0-21swapper/021:37:280
71580rcu_preempt0-21swapper/021:37:280
71480rcu_preempt0-21swapper/321:28:593
71480rcu_preempt0-21swapper/321:28:593
71480rcu_preempt0-21swapper/123:13:441
71480rcu_preempt0-21swapper/123:13:441
71470rcu_preempt0-21swapper/123:52:161
71470rcu_preempt0-21swapper/123:52:161
71460rcu_preempt0-21swapper/223:23:222
71460rcu_preempt0-21swapper/223:23:222
71460rcu_preempt0-21swapper/200:02:182
71460rcu_preempt0-21swapper/200:02:182
1699450migration/118345-21taskset19:10:491
1699450migration/118345-21taskset19:10:491
71440rcu_preempt0-21swapper/200:33:132
71440rcu_preempt0-21swapper/200:33:132
1858699443cyclictest0-21swapper/100:07:231
1858699443cyclictest0-21swapper/100:07:231
1858699443cyclictest0-21swapper/100:07:231
1858699434cyclictest0-21swapper/123:52:241
1858699434cyclictest0-21swapper/123:52:241
1858699433cyclictest496-21meminfo20:02:321
1858699433cyclictest496-21meminfo20:02:321
1858699433cyclictest0-21swapper/122:07:381
1858699433cyclictest0-21swapper/122:07:381
71420rcu_preempt0-21swapper/123:43:361
71420rcu_preempt0-21swapper/123:43:361
71420rcu_preempt0-21swapper/123:43:361
71420rcu_preempt0-21swapper/119:37:361
71420rcu_preempt0-21swapper/119:37:361
71420rcu_preempt0-21swapper/021:29:000
71420rcu_preempt0-21swapper/021:29:000
1858699424cyclictest0-21swapper/122:56:331
1858699424cyclictest0-21swapper/122:56:331
1858699424cyclictest0-21swapper/122:56:331
1858699424cyclictest0-21swapper/121:14:011
1858699424cyclictest0-21swapper/121:14:011
1858699424cyclictest0-21swapper/100:27:361
1858699424cyclictest0-21swapper/100:27:361
1858699424cyclictest0-21swapper/100:27:361
1858699423cyclictest0-21swapper/122:47:411
1858699423cyclictest0-21swapper/122:47:411
1858699423cyclictest0-21swapper/121:32:341
1858699423cyclictest0-21swapper/121:32:341
1858699422cyclictest5544-21diskstats22:42:261
1858699422cyclictest5544-21diskstats22:42:261
1858699422cyclictest5544-21diskstats22:42:261
1858699422cyclictest17356-21ntp_states21:02:371
1858699422cyclictest17356-21ntp_states21:02:371
18586994216cyclictest0-21swapper/121:59:261
18586994216cyclictest0-21swapper/121:59:261
71410rcu_preempt8423-1kworker/1:0H20:32:211
71410rcu_preempt8423-1kworker/1:0H20:32:211
71410rcu_preempt8423-1kworker/1:0H20:32:211
71410rcu_preempt18497-21cat19:12:120
71410rcu_preempt18497-21cat19:12:120
71410rcu_preempt0-21swapper/119:27:211
71410rcu_preempt0-21swapper/119:27:211
71410rcu_preempt0-21swapper/021:46:080
71410rcu_preempt0-21swapper/021:46:080
71410rcu_preempt0-21swapper/021:46:080
71410rcu_preempt0-21swapper/019:27:330
71410rcu_preempt0-21swapper/019:27:330
1858699416cyclictest20658-21ssh23:09:231
1858699416cyclictest20658-21ssh23:09:231
1858699416cyclictest20658-21ssh23:09:231
1858699413cyclictest0-21swapper/123:18:361
1858699413cyclictest0-21swapper/123:18:361
1858699413cyclictest0-21swapper/122:59:591
1858699413cyclictest0-21swapper/122:59:591
1858699413cyclictest0-21swapper/122:59:591
1858699413cyclictest0-21swapper/122:37:311
1858699413cyclictest0-21swapper/122:37:311
1858699413cyclictest0-21swapper/122:20:311
1858699413cyclictest0-21swapper/122:20:311
1858699413cyclictest0-21swapper/122:07:111
1858699413cyclictest0-21swapper/122:07:111
1858699412cyclictest31911-21/usr/sbin/munin22:32:381
1858699412cyclictest31911-21/usr/sbin/munin22:32:381
1858699412cyclictest1833-21diskstats00:32:261
1858699412cyclictest1833-21diskstats00:32:261
1858699412cyclictest11140-21munin-run20:42:111
1858699412cyclictest11140-21munin-run20:42:111
1858699412cyclictest11140-21munin-run20:42:111
1858699412cyclictest0-21swapper/123:59:421
1858699412cyclictest0-21swapper/123:59:421
1858699412cyclictest0-21swapper/123:59:421
18586994118cyclictest0-21swapper/100:17:351
18586994118cyclictest0-21swapper/100:17:351
18586994118cyclictest0-21swapper/100:17:351
18586994117cyclictest0-21swapper/121:31:561
18586994117cyclictest0-21swapper/121:31:561
18586994116cyclictest0-21swapper/122:30:121
18586994116cyclictest0-21swapper/122:30:121
18586994116cyclictest0-21swapper/100:12:351
18586994116cyclictest0-21swapper/100:12:351
18586994116cyclictest0-21swapper/100:12:351
71400rcu_preempt2061-21/usr/sbin/munin21:37:373
71400rcu_preempt2061-21/usr/sbin/munin21:37:373
71400rcu_preempt1952-21memory20:07:320
71400rcu_preempt1952-21memory20:07:320
71400rcu_preempt0-21swapper/223:34:282
71400rcu_preempt0-21swapper/223:34:282
71400rcu_preempt0-21swapper/221:48:092
71400rcu_preempt0-21swapper/221:48:092
71400rcu_preempt0-21swapper/221:48:092
71400rcu_preempt0-21swapper/023:18:010
71400rcu_preempt0-21swapper/023:18:010
71400rcu_preempt0-21swapper/021:05:000
71400rcu_preempt0-21swapper/021:05:000
1858699403cyclictest0-21swapper/121:17:391
1858699403cyclictest0-21swapper/121:17:391
1858699403cyclictest0-21swapper/100:25:241
1858699403cyclictest0-21swapper/100:25:241
1858699403cyclictest0-21swapper/100:25:241
1858699402cyclictest4066-21apt-get21:42:351
1858699402cyclictest4066-21apt-get21:42:351
1858699402cyclictest4066-21apt-get21:42:351
1858699402cyclictest26992-21/usr/sbin/munin19:42:241
1858699402cyclictest26992-21/usr/sbin/munin19:42:241
1858699402cyclictest14056-21/usr/sbin/munin20:52:221
1858699402cyclictest14056-21/usr/sbin/munin20:52:221
1858699402cyclictest14056-21/usr/sbin/munin20:52:221
1858699402cyclictest0-21swapper/122:22:261
1858699402cyclictest0-21swapper/122:22:261
1858699402cyclictest0-21swapper/122:22:261
1858699402cyclictest0-21swapper/121:12:111
1858699402cyclictest0-21swapper/121:12:111
71390rcu_preempt22020-1kworker/0:2H22:23:480
71390rcu_preempt22020-1kworker/0:2H22:23:480
71390rcu_preempt22020-1kworker/0:2H22:23:480
71390rcu_preempt19604-21sh00:06:070
71390rcu_preempt19604-21sh00:06:070
71390rcu_preempt19579-21/usr/sbin/munin23:07:332
71390rcu_preempt19579-21/usr/sbin/munin23:07:332
71390rcu_preempt19579-21/usr/sbin/munin23:07:332
71390rcu_preempt0-21swapper/021:23:340
71390rcu_preempt0-21swapper/021:23:340
71390rcu_preempt0-21swapper/021:23:340
71390rcu_preempt0-21swapper/000:25:210
71390rcu_preempt0-21swapper/000:25:210
71390rcu_preempt0-21swapper/000:25:210
1858699393cyclictest0-21swapper/123:37:191
1858699393cyclictest0-21swapper/123:37:191
1858699393cyclictest0-21swapper/123:32:391
1858699393cyclictest0-21swapper/123:32:391
1858699393cyclictest0-21swapper/121:52:101
1858699393cyclictest0-21swapper/121:52:101
1858699393cyclictest0-21swapper/121:52:101
1858699393cyclictest0-21swapper/100:05:351
1858699393cyclictest0-21swapper/100:05:351
1858699392cyclictest26529-21ssh21:22:551
1858699392cyclictest26529-21ssh21:22:551
1858699392cyclictest26529-21ssh21:22:551
1858699392cyclictest18123-21ssh23:04:441
1858699392cyclictest18123-21ssh23:04:441
1858699392cyclictest18123-21ssh23:04:441
1858699392cyclictest0-21swapper/123:27:101
1858699392cyclictest0-21swapper/123:27:101
1858699392cyclictest0-21swapper/121:56:441
1858699392cyclictest0-21swapper/121:56:441
1858699392cyclictest0-21swapper/121:56:441
1858699391cyclictest1958-21snmpd20:26:291
1858699391cyclictest1958-21snmpd20:26:291
1858699391cyclictest18611-21/usr/sbin/munin19:12:331
1858699391cyclictest18611-21/usr/sbin/munin19:12:331
18586993917cyclictest0-21swapper/121:38:081
18586993917cyclictest0-21swapper/121:38:081
18586993915cyclictest0-21swapper/120:47:021
18586993915cyclictest0-21swapper/120:47:021
18586993915cyclictest0-21swapper/120:02:121
18586993915cyclictest0-21swapper/120:02:121
18586993915cyclictest0-21swapper/120:02:121
71380rcu_preempt4263-21apt-get21:42:232
71380rcu_preempt4263-21apt-get21:42:232
71380rcu_preempt4263-21apt-get21:42:232
71380rcu_preempt20665-21ssh21:12:410
71380rcu_preempt20665-21ssh21:12:410
71380rcu_preempt0-21swapper/320:32:303
71380rcu_preempt0-21swapper/320:32:303
71380rcu_preempt0-21swapper/320:32:303
71380rcu_preempt0-21swapper/023:43:220
71380rcu_preempt0-21swapper/023:43:220
71380rcu_preempt0-21swapper/023:43:220
46050380irq/122-QManpo21458-2110:48:550
46050380irq/122-QManpo21458-2110:48:550
46050380irq/122-QManpo21458-2110:48:550
46050380irq/122-QManpo0-210
46050380irq/122-QManpo0-210
46050380irq/122-QManpo0-210
18586993815cyclictest0-21swapper/100:40:571
18586993815cyclictest0-21swapper/100:40:571
18586993815cyclictest0-21swapper/100:40:571
18586993813cyclictest0-21swapper/120:22:111
18586993813cyclictest0-21swapper/120:22:111
71370rcu_preempt9723-21ssh23:47:420
71370rcu_preempt9723-21ssh23:47:420
71370rcu_preempt7669-21sh22:46:520
71370rcu_preempt7669-21sh22:46:520
71370rcu_preempt7669-21sh22:46:520
71370rcu_preempt17325-21sendmail-msp00:08:342
71370rcu_preempt17325-21sendmail-msp00:08:342
71370rcu_preempt17325-21sendmail-msp00:08:342
71370rcu_preempt17325-21sendmail-msp00:08:320
71370rcu_preempt17325-21sendmail-msp00:08:320
71370rcu_preempt17325-21sendmail-msp00:08:320
71370rcu_preempt16041-21runrttasks23:01:350
71370rcu_preempt16041-21runrttasks23:01:350
71370rcu_preempt16041-21runrttasks23:01:350
71370rcu_preempt0-21swapper/222:22:272
71370rcu_preempt0-21swapper/222:22:272
71370rcu_preempt0-21swapper/222:22:272
71370rcu_preempt0-21swapper/023:58:200
71370rcu_preempt0-21swapper/023:58:200
71370rcu_preempt0-21swapper/023:58:200
71370rcu_preempt0-21swapper/022:37:440
71370rcu_preempt0-21swapper/022:37:440
71370rcu_preempt0-21swapper/022:08:010
71370rcu_preempt0-21swapper/022:08:010
71370rcu_preempt0-21swapper/022:07:040
71370rcu_preempt0-21swapper/022:07:040
71370rcu_preempt0-21swapper/021:54:470
71370rcu_preempt0-21swapper/021:54:470
71370rcu_preempt0-21swapper/021:54:470
71370rcu_preempt0-21swapper/021:32:440
71370rcu_preempt0-21swapper/021:32:440
71370rcu_preempt0-21swapper/000:28:340
71370rcu_preempt0-21swapper/000:28:340
71370rcu_preempt0-21swapper/000:28:340
46050370irq/122-QManpo26857-2110:48:550
46050370irq/122-QManpo26857-2110:48:550
260062370chrt22020-1kworker/0:2H22:21:200
260062370chrt22020-1kworker/0:2H22:21:200
1858699371cyclictest0-21swapper/122:14:311
1858699371cyclictest0-21swapper/122:14:311
1858699371cyclictest0-21swapper/122:14:311
18586993712cyclictest21262-21sendmail-msp19:23:551
18586993712cyclictest21262-21sendmail-msp19:23:551
18586993712cyclictest21262-21sendmail-msp19:23:551
71360rcu_preempt3161-21df_inode20:12:250
71360rcu_preempt3161-21df_inode20:12:250
71360rcu_preempt30142-21sh22:27:420
71360rcu_preempt30142-21sh22:27:420
71360rcu_preempt26365-21grep21:22:423
71360rcu_preempt26365-21grep21:22:423
71360rcu_preempt26365-21grep21:22:423
71360rcu_preempt17845-21sh23:03:550
71360rcu_preempt17845-21sh23:03:550
71360rcu_preempt17845-21sh23:03:550
71360rcu_preempt0-21swapper/223:47:212
71360rcu_preempt0-21swapper/223:47:212
71360rcu_preempt0-21swapper/223:17:142
71360rcu_preempt0-21swapper/223:17:142
71360rcu_preempt0-21swapper/023:28:250
71360rcu_preempt0-21swapper/023:28:250
71360rcu_preempt0-21swapper/023:28:250
71360rcu_preempt0-21swapper/021:50:230
71360rcu_preempt0-21swapper/021:50:230
71360rcu_preempt0-21swapper/021:50:230
71360rcu_preempt0-21swapper/020:57:220
71360rcu_preempt0-21swapper/020:57:220
71360rcu_preempt0-21swapper/020:32:310
71360rcu_preempt0-21swapper/020:32:310
71360rcu_preempt0-21swapper/020:32:310
71360rcu_preempt0-21swapper/020:23:440
71360rcu_preempt0-21swapper/020:23:440
46050360irq/122-QManpo25438-2110:48:550
46050360irq/122-QManpo25438-2110:48:550
46050360irq/122-QManpo2146-2110:48:550
46050360irq/122-QManpo2146-2110:48:550
46050360irq/122-QManpo18098-2110:48:550
46050360irq/122-QManpo18098-2110:48:550
46050360irq/122-QManpo11155-2110:48:550
46050360irq/122-QManpo11155-2110:48:550
71350rcu_preempt8443-21latency_hist20:32:151
71350rcu_preempt8443-21latency_hist20:32:151
71350rcu_preempt18044-21sed19:07:372
71350rcu_preempt18044-21sed19:07:372
71350rcu_preempt1226-21sh21:37:122
71350rcu_preempt1226-21sh21:37:122
71350rcu_preempt0-21swapper/223:18:152
71350rcu_preempt0-21swapper/223:18:152
71350rcu_preempt0-21swapper/222:27:282
71350rcu_preempt0-21swapper/222:27:282
71350rcu_preempt0-21swapper/221:57:292
71350rcu_preempt0-21swapper/221:57:292
71350rcu_preempt0-21swapper/220:22:262
71350rcu_preempt0-21swapper/220:22:262
71350rcu_preempt0-21swapper/200:19:362
71350rcu_preempt0-21swapper/200:19:362
71350rcu_preempt0-21swapper/200:19:362
71350rcu_preempt0-21swapper/020:02:590
71350rcu_preempt0-21swapper/020:02:590
46450350irq/118-QManpo28415-2110:48:552
46450350irq/118-QManpo28415-2110:48:552
46450350irq/118-QManpo28415-2110:48:552
46050350irq/122-QManpo24126-2110:48:550
46050350irq/122-QManpo24126-2110:48:550
46050350irq/122-QManpo23169-2110:48:550
46050350irq/122-QManpo23169-2110:48:550
46050350irq/122-QManpo0-210
46050350irq/122-QManpo0-210
1858699353cyclictest0-21swapper/123:31:221
1858699353cyclictest0-21swapper/123:31:221
1858699353cyclictest0-21swapper/123:31:221
71340rcu_preempt3497-21apt-get23:37:220
71340rcu_preempt3497-21apt-get23:37:220
71340rcu_preempt16906-21aten_r4power_po21:02:242
71340rcu_preempt16906-21aten_r4power_po21:02:242
71340rcu_preempt0-21swapper/323:52:233
71340rcu_preempt0-21swapper/323:52:233
71340rcu_preempt0-21swapper/222:16:312
71340rcu_preempt0-21swapper/222:16:312
71340rcu_preempt0-21swapper/222:16:312
71340rcu_preempt0-21swapper/221:27:502
71340rcu_preempt0-21swapper/221:27:502
71340rcu_preempt0-21swapper/219:27:222
71340rcu_preempt0-21swapper/219:27:222
71340rcu_preempt0-21swapper/000:37:580
71340rcu_preempt0-21swapper/000:37:580
71340rcu_preempt0-21swapper/000:37:580
71340rcu_preempt0-21swapper/000:16:570
71340rcu_preempt0-21swapper/000:16:570
71340rcu_preempt0-21swapper/000:16:570
46650340irq/116-QManpo0-2110:48:553
46650340irq/116-QManpo0-2110:48:553
46050340irq/122-QManpo9891-10
46050340irq/122-QManpo9891-10
46050340irq/122-QManpo9891-10
46050340irq/122-QManpo32180-2110:48:550
46050340irq/122-QManpo32180-2110:48:550
46050340irq/122-QManpo24826-2110:48:550
46050340irq/122-QManpo24826-2110:48:550
46050340irq/122-QManpo24826-2110:48:550
46050340irq/122-QManpo20111-2110:48:550
46050340irq/122-QManpo20111-2110:48:550
46050340irq/122-QManpo20111-2110:48:550
46050340irq/122-QManpo1370-2110:48:550
46050340irq/122-QManpo1370-2110:48:550
71330rcu_preempt29763-21apt-get19:52:210
71330rcu_preempt29763-21apt-get19:52:210
71330rcu_preempt29763-21apt-get19:52:210
71330rcu_preempt27827-21sh21:26:422
71330rcu_preempt27827-21sh21:26:422
71330rcu_preempt27827-21sh21:26:422
71330rcu_preempt24575-21ssh21:20:202
71330rcu_preempt24575-21ssh21:20:202
71330rcu_preempt0-21swapper/222:55:102
71330rcu_preempt0-21swapper/222:55:102
71330rcu_preempt0-21swapper/222:55:102
71330rcu_preempt0-21swapper/222:51:592
71330rcu_preempt0-21swapper/222:51:592
71330rcu_preempt0-21swapper/222:19:542
71330rcu_preempt0-21swapper/222:19:542
71330rcu_preempt0-21swapper/220:05:562
71330rcu_preempt0-21swapper/220:05:562
71330rcu_preempt0-21swapper/219:57:342
71330rcu_preempt0-21swapper/219:57:342
71330rcu_preempt0-21swapper/219:57:342
71330rcu_preempt0-21swapper/219:35:072
71330rcu_preempt0-21swapper/219:35:072
71330rcu_preempt0-21swapper/219:35:072
71330rcu_preempt0-21swapper/200:40:592
71330rcu_preempt0-21swapper/200:40:592
71330rcu_preempt0-21swapper/200:40:592
71330rcu_preempt0-21swapper/119:17:361
71330rcu_preempt0-21swapper/119:17:361
71330rcu_preempt0-21swapper/119:17:361
71330rcu_preempt0-21swapper/022:56:530
71330rcu_preempt0-21swapper/022:56:530
71330rcu_preempt0-21swapper/022:56:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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