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2026-05-17 - 17:37

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Phytec
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 792 highest latencies:
System rackbslot5s.osadl.org (updated Sun May 17, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1735530996836,27cyclictest311ktimers/208:30:102
1735530995627,8cyclictest1823667-21sh11:25:002
1735530995418,12cyclictest311ktimers/210:45:122
173552199540,47cyclictest0-21swapper/009:55:120
1735532995344,5cyclictest1835816-21munin-run12:00:003
1735521995018,13cyclictest1774741-21grep09:00:260
1735521995011,19cyclictest0-21swapper/008:18:050
1735530994938,8cyclictest1739482-21sendmail07:20:012
1735521994939,7cyclictest1849469-21sendmail12:40:000
1735521994816,14cyclictest1780066-21sed09:15:250
1735521994613,16cyclictest1762584-21mailstats08:25:240
1735532994533,8cyclictest1787019-21grep09:35:263
173552199455,21cyclictest0-21swapper/007:25:000
173552199455,21cyclictest0-21swapper/007:25:000
1735532994434,7cyclictest1843945-21grep12:20:263
1735532994434,7cyclictest1843945-21grep12:20:253
1735521994431,8cyclictest1815387-21apt-get11:00:120
1735521994425,5cyclictest1750328-21latency07:50:180
1735532994235,4cyclictest1777206-21cut09:10:013
1735525994231,7cyclictest1782745-21cut09:25:151
1735525994227,9cyclictest231ktimers/108:00:151
1735521994214,11cyclictest1840425-21timerwakeupswit12:10:250
1735521994214,11cyclictest1840425-21timerwakeupswit12:10:250
1735525994129,8cyclictest1793847-21grep09:55:261
1735525994129,8cyclictest1768672-21sort08:45:001
1735521994131,7cyclictest1828812-21cron11:38:010
1735521994116,8cyclictest1739204-21runrttasks07:17:030
1735532994031,6cyclictest1811318-21unixbench_singl10:45:253
1735525994033,4cyclictest1773783-21munin-plugin-st09:00:011
1735521994033,4cyclictest1842630-21auditctl12:20:000
1735521994033,4cyclictest1842630-21auditctl12:20:000
1735521994033,4cyclictest1797888-21munin-plugin-st10:10:000
1735521994017,5cyclictest1817198-21df_inode11:05:150
1735525993933,4cyclictest1783645-21kworker/u8:2+events_unbound10:04:521
1735525993928,7cyclictest1759946-21sendmail08:20:011
1735521993925,11cyclictest1829764-21/usr/sbin/munin11:40:190
1735521993924,11cyclictest1821008-21/usr/sbin/munin11:15:200
1735521993922,13cyclictest1786967-21unixbench_multi09:35:260
1735521993914,9cyclictest1836059-21apt-get12:00:110
1735521993825,10cyclictest1809854-21cron10:43:010
1735521993824,11cyclictest1755570-21/usr/sbin/munin08:05:210
1735521993820,11cyclictest0-21swapper/010:20:130
1735521993820,11cyclictest0-21swapper/010:20:130
1735521993817,3cyclictest1795283-21ntp_states10:00:230
1735532993730,4cyclictest1780619-21sh09:20:003
1735532993726,7cyclictest1775078-21grep09:00:283
1735530993726,7cyclictest1813028-21grep10:50:252
1735530993725,8cyclictest1835338-21grep11:55:242
1735525993721,5cyclictest1802782-21kworker/u8:0+events_unbound11:05:551
1735521993726,7cyclictest1781198-21/usr/sbin/munin09:20:160
1735521993721,11cyclictest1798112-21apt-get10:10:120
1735521993713,9cyclictest1768654-21date08:45:000
1735521993711,9cyclictest1773418-21chrt08:55:520
1735532993626,6cyclictest1740711-21grep07:20:243
1735532993626,6cyclictest1740711-21grep07:20:243
1735532993623,8cyclictest0-21swapper/310:50:243
1735525993628,4cyclictest1829008-21sendmail11:40:001
1735521993624,9cyclictest1807409-21/usr/sbin/munin10:35:200
1735521993624,7cyclictest1813905-21/usr/sbin/munin10:55:180
1735521993624,7cyclictest1763882-21if_eth108:30:170
1735521993623,10cyclictest1824818-21/usr/sbin/munin11:25:230
1735521993623,10cyclictest1813336-21cron10:54:000
1735521993623,10cyclictest121ktimers/009:50:130
1735521993620,12cyclictest0-21swapper/008:10:140
1735521993620,11cyclictest1782651-21/usr/sbin/munin09:25:130
1735521993617,4cyclictest1822658-21meminfo11:20:200
1735521993617,12cyclictest0-21swapper/011:55:110
1735521993616,15cyclictest1765640-21kernelversion08:35:180
1735521993612,21cyclictest1746696-21fschecks_count07:40:170
1735530993524,7cyclictest1789158-21munin-run09:45:002
1735525993529,4cyclictest1811515-21kworker/u8:1+events_unbound11:10:051
1735525993523,8cyclictest1736729-21grep07:10:261
1735525993514,8cyclictest24-21ksoftirqd/109:05:121
1735525993514,12cyclictest131rcu_preempt10:30:011
1735525993514,12cyclictest131rcu_preempt10:30:011
1735525993513,7cyclictest131rcu_preempt07:25:131
1735521993525,7cyclictest1845118-21/usr/sbin/munin12:25:200
1735521993525,7cyclictest1826094-21/usr/sbin/munin11:30:170
1735521993525,7cyclictest1819130-21/usr/sbin/munin11:10:200
1735521993525,7cyclictest1805676-21/usr/sbin/munin10:30:200
1735521993525,7cyclictest1778276-21/usr/sbin/munin09:10:220
1735521993525,7cyclictest1769087-21/usr/sbin/munin08:45:160
1735521993525,7cyclictest1761533-21sshd08:23:560
1735521993525,7cyclictest1749519-21cron07:48:000
1735521993523,7cyclictest1831390-21meminfo11:45:190
1735521993523,7cyclictest1831390-21meminfo11:45:180
1735521993523,7cyclictest1745080-21/usr/sbin/munin07:35:160
1735521993518,4cyclictest1843116-21perl12:20:160
1735521993518,4cyclictest1843116-21perl12:20:160
1735521993517,14cyclictest164-21systemd-journal08:54:460
1735532993427,5cyclictest1804707-21munin-run10:29:593
1735532993427,5cyclictest1804707-21munin-run10:29:593
1735532993422,7cyclictest0-21swapper/312:15:253
1735532993422,7cyclictest0-21swapper/312:15:253
1735525993425,6cyclictest1780613-21munin-plugin-st09:20:011
1735525993423,7cyclictest1790445-21grep09:45:251
173552599341,18cyclictest0-21swapper/112:10:131
173552599341,18cyclictest0-21swapper/112:10:131
1735521993424,7cyclictest1751627-21/usr/sbin/munin07:55:110
1735521993423,8cyclictest1754225-21/usr/sbin/munin08:00:280
1735521993423,7cyclictest1735683-21/usr/sbin/munin07:10:130
1735521993422,9cyclictest1784812-21/usr/sbin/munin09:30:200
1735521993422,9cyclictest1784812-21/usr/sbin/munin09:30:200
1735521993422,9cyclictest1741745-21/usr/sbin/munin07:25:180
1735521993421,9cyclictest1800253-21/usr/sbin/munin10:15:180
1735521993416,15cyclictest1810491-21fschecks_time10:45:160
1735521993414,17cyclictest1846620-21sshd12:30:170
1735521993412,9cyclictest645-21runrttasks09:06:570
1735532993325,4cyclictest0-21swapper/309:40:173
1735532993325,4cyclictest0-21swapper/307:25:263
1735532993323,7cyclictest1802552-21grep10:20:263
1735532993323,7cyclictest1802552-21grep10:20:263
1735532993323,7cyclictest1759940-21sendmail08:20:003
1735532993322,6cyclictest0-21swapper/308:30:253
1735530993325,4cyclictest0-21swapper/210:40:002
1735530993325,4cyclictest0-21swapper/210:30:242
1735530993323,6cyclictest1759478-21grep08:15:242
1735525993325,4cyclictest0-21swapper/112:20:251
1735525993325,4cyclictest0-21swapper/112:20:251
1735525993324,6cyclictest231ktimers/111:30:131
1735525993320,8cyclictest0-21swapper/108:40:001
1735525993320,5cyclictest631270-21kworker/u8:3+events_unbound07:45:271
1735525993319,9cyclictest231ktimers/107:30:121
1735525993314,10cyclictest24-21ksoftirqd/112:30:111
1735525993312,5cyclictest1770374-21latency_hist08:50:011
1735525993312,11cyclictest24-21ksoftirqd/107:40:271
173552599331,18cyclictest0-21swapper/107:15:131
1735525993310,15cyclictest24-21ksoftirqd/107:25:011
1735525993310,15cyclictest24-21ksoftirqd/107:25:011
1735521993323,7cyclictest1837758-21apt-get12:05:090
1735521993323,7cyclictest1788126-21/usr/sbin/munin09:40:190
1735521993319,11cyclictest1789378-21/usr/sbin/munin09:45:210
1735532993226,3cyclictest0-21swapper/310:40:013
1735532993224,4cyclictest0-21swapper/307:15:043
1735530993225,4cyclictest0-21swapper/211:20:002
1735530993224,4cyclictest0-21swapper/209:50:002
1735530993223,6cyclictest1804729-21grep10:30:002
1735530993223,6cyclictest1804729-21grep10:30:002
1735530993222,7cyclictest1802526-21grep10:20:262
1735530993222,7cyclictest1802526-21grep10:20:252
1735530993222,6cyclictest0-21swapper/209:20:012
1735530993221,7cyclictest1736687-21grep07:10:272
173552599328,14cyclictest131rcu_preempt08:20:261
1735525993224,4cyclictest0-21swapper/108:10:001
173552599321,10cyclictest24-21ksoftirqd/109:30:121
173552599321,10cyclictest24-21ksoftirqd/109:30:111
1735521993222,7cyclictest1743671-21ntp_states07:30:200
1735532993122,6cyclictest1797421-21grep10:05:253
1735530993124,3cyclictest0-21swapper/209:55:252
1735530993121,6cyclictest1843948-21unixbench_singl12:20:262
1735530993121,6cyclictest1843948-21unixbench_singl12:20:262
1735530993119,9cyclictest311ktimers/207:55:122
1735525993123,4cyclictest0-21swapper/107:50:251
1735525993121,5cyclictest0-21swapper/111:45:101
1735525993121,5cyclictest0-21swapper/111:45:101
1735525993119,8cyclictest0-21swapper/111:59:591
1735525993111,12cyclictest24-21ksoftirqd/109:40:271
1735525993111,11cyclictest24-21ksoftirqd/110:55:271
1735532993023,4cyclictest1831989-21unixbench_singl11:45:243
1735532993023,4cyclictest1831989-21unixbench_singl11:45:243
1735532993023,3cyclictest0-21swapper/308:00:013
1735532993022,4cyclictest0-21swapper/309:30:163
1735532993022,4cyclictest0-21swapper/309:30:163
1735532993021,6cyclictest1830228-21grep11:40:253
1735532993021,5cyclictest1809607-21head10:40:263
1735530993023,3cyclictest0-21swapper/208:45:262
1735530993022,4cyclictest0-21swapper/212:20:002
1735530993022,4cyclictest0-21swapper/212:20:002
1735530993021,6cyclictest0-21swapper/209:05:172
1735530993021,6cyclictest0-21swapper/208:25:162
173552599309,13cyclictest131rcu_preempt09:50:211
1735525993024,4cyclictest1795802-21kworker/u8:0+events_unbound10:11:291
1735525993023,5cyclictest1813380-21kworker/u8:2+events_unbound10:54:371
1735525993023,4cyclictest0-21swapper/112:15:241
1735525993023,4cyclictest0-21swapper/112:15:241
1735525993021,6cyclictest231ktimers/108:25:141
1735532992921,4cyclictest0-21swapper/308:25:003
1735530992920,5cyclictest0-21swapper/211:00:002
1735530992919,6cyclictest1819800-21grep11:10:282
1735525992923,4cyclictest1802782-21kworker/u8:0+events_unbound11:20:071
1735525992923,4cyclictest1800985-21kworker/u8:1+events_unbound10:25:011
1735525992923,4cyclictest1800985-21kworker/u8:1+events_unbound10:25:001
1735525992921,4cyclictest0-21swapper/109:39:591
1735525992920,6cyclictest1844978-21latency12:25:181
1735525992917,7cyclictest0-21swapper/108:30:251
1735525992916,5cyclictest131rcu_preempt10:15:131
1735532992822,3cyclictest0-21swapper/312:30:183
1735532992820,4cyclictest0-21swapper/310:15:243
1735530992821,3cyclictest0-21swapper/209:50:162
1735530992821,3cyclictest0-21swapper/207:40:192
1735530992820,4cyclictest0-21swapper/208:20:262
1735525992821,5cyclictest1774137-21kworker/u8:3+events_unbound09:04:481
1735525992821,4cyclictest1811733-21sh10:50:011
173552599282,12cyclictest0-21swapper/111:17:591
1735525992820,4cyclictest0-21swapper/112:00:251
1735525992815,6cyclictest1833978-21kworker/u8:0+events_unbound12:08:451
1735525992814,10cyclictest1808329-21tr10:40:001
1735532992721,3cyclictest0-21swapper/311:20:003
1735532992721,3cyclictest0-21swapper/307:50:003
1735532992720,4cyclictest0-21swapper/312:05:233
1735532992720,4cyclictest0-21swapper/309:20:233
1735532992717,6cyclictest0-21swapper/307:35:253
173553299271,12cyclictest164-21systemd-journal09:29:493
1735530992720,3cyclictest0-21swapper/209:25:212
1735530992719,5cyclictest0-21swapper/211:05:262
1735530992718,4cyclictest0-21swapper/212:00:262
1735530992716,7cyclictest0-21swapper/211:35:252
173552599279,4cyclictest0-21swapper/110:05:111
173552599276,12cyclictest24-21ksoftirqd/111:50:161
1735525992719,6cyclictest1774137-21kworker/u8:3+events_unbound09:10:131
1735525992710,10cyclictest0-21swapper/110:34:011
1735532992619,4cyclictest1750914-21tail07:50:243
1735532992619,4cyclictest0-21swapper/308:10:013
1735532992619,3cyclictest0-21swapper/308:35:133
1735532992616,6cyclictest1778903-21audit_send_reply09:15:013
1735530992620,3cyclictest0-21swapper/211:30:162
1735530992620,3cyclictest0-21swapper/210:15:192
1735530992619,4cyclictest0-21swapper/208:55:272
1735530992617,7cyclictest1777122-21kworker/u8:0+events_unbound09:30:552
1735530992617,7cyclictest1777122-21kworker/u8:0+events_unbound09:30:542
1735530992615,8cyclictest204-21dbus-daemon11:50:092
173552599266,10cyclictest0-21swapper/108:53:321
1735525992619,5cyclictest1811515-21kworker/u8:1+events_unbound11:26:421
173552599261,13cyclictest0-21swapper/108:10:041
1735532992518,4cyclictest0-21swapper/311:10:283
1735532992518,4cyclictest0-21swapper/309:50:253
1735532992515,8cyclictest1816446-21unixbench_singl11:00:263
173553299251,14cyclictest0-21swapper/307:11:263
1735530992519,3cyclictest0-21swapper/211:25:222
1735530992518,4cyclictest0-21swapper/209:40:002
1735530992516,6cyclictest0-21swapper/209:10:202
1735530992516,5cyclictest1797451-21head10:05:252
173552599259,5cyclictest131rcu_preempt11:40:231
1735525992519,4cyclictest631270-21kworker/u8:3+events_unbound07:57:421
1735525992518,5cyclictest631270-21kworker/u8:3+events_unbound07:37:371
173552599251,6cyclictest1781861-21unixbench_multi09:20:251
1735532992418,4cyclictest391ktimers/311:50:113
1735532992418,3cyclictest0-21swapper/310:15:003
1735532992417,4cyclictest1848207-21fschecks_time12:35:153
1735532992414,7cyclictest1769711-21grep08:45:243
1735532992410,2cyclictest131rcu_preempt08:00:163
1735530992418,3cyclictest0-21swapper/208:55:012
1735530992417,4cyclictest1838324-21ntpq12:05:192
1735530992417,4cyclictest0-21swapper/210:10:182
1735530992415,5cyclictest0-21swapper/212:25:142
173552599241,12cyclictest0-21swapper/111:00:171
1735532992317,4cyclictest18242622sleep311:25:173
1735532992317,3cyclictest0-21swapper/312:10:213
1735532992317,3cyclictest0-21swapper/312:10:203
1735532992317,3cyclictest0-21swapper/310:00:273
1735532992316,4cyclictest438-21cron10:35:013
1735532992316,4cyclictest438-21cron07:45:013
1735532992316,4cyclictest1762034-21fschecks_count08:25:173
1735532992316,4cyclictest0-21swapper/308:50:143
1735532992316,4cyclictest0-21swapper/308:40:253
1735532992315,4cyclictest0-21swapper/311:40:013
1735532992314,6cyclictest1790072-21fgrep09:45:223
173553299231,19cyclictest1817321-21fschecks_time11:05:173
1735530992317,3cyclictest0-21swapper/207:45:202
1735530992317,3cyclictest0-21swapper/207:20:142
1735530992317,3cyclictest0-21swapper/207:20:142
1735530992316,5cyclictest311ktimers/209:25:012
1735530992314,6cyclictest1757755-21grep08:10:282
173552599234,4cyclictest1808912-21uname10:40:181
1735532992216,3cyclictest0-21swapper/311:24:593
1735532992215,4cyclictest1773795-21sendmail09:00:013
1735532992214,5cyclictest0-21swapper/311:30:163
1735532992211,9cyclictest1794511-21sed10:00:023
1735532992211,7cyclictest1758210-21cron08:15:013
173553099224,10cyclictest0-21swapper/212:32:442
1735530992216,4cyclictest1830698-21cron11:45:012
1735530992213,6cyclictest1848383-21wc12:35:172
1735530992213,6cyclictest1750041-21df07:50:142
173553099220,4cyclictest0-21swapper/210:40:262
1735532992112,6cyclictest1815329-21grep11:00:013
1735530992116,3cyclictest1743414-21if_eth107:30:152
1735530992116,2cyclictest0-21swapper/207:35:232
1735530992111,5cyclictest1754366-21tail08:00:282
173553299201,9cyclictest18445792apt12:25:103
1735532992011,6cyclictest1743323-21fschecks_time07:30:153
1735530992012,5cyclictest0-21swapper/211:45:182
1735530992012,5cyclictest0-21swapper/211:45:182
1735530992010,7cyclictest204-21dbus-daemon12:10:152
1735530992010,7cyclictest204-21dbus-daemon12:10:142
1735530992010,7cyclictest1755883-21cat08:05:252
173553299192,13cyclictest1837126-21unixbench_singl12:00:263
1735530991913,3cyclictest0-21swapper/211:00:192
1735530991912,5cyclictest311ktimers/209:00:132
1735530991912,5cyclictest311ktimers/207:25:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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