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2026-04-02 - 12:07

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 all highest latencies:
System rackbslot5s.osadl.org (updated Thu Apr 02, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2192999998352,27cyclictest2264110-21munin-plugin-st22:35:000
2193006995631,5cyclictest2217413-21unixbench_singl20:15:262
2193006995532,5cyclictest2293093-21grep00:00:002
2192999995423,3cyclictest0-21swapper/020:15:250
2193009994836,9cyclictest391ktimers/323:55:133
2193002994840,5cyclictest2300125-21grep00:20:001
2192999994818,7cyclictest2297716-21grep00:10:220
2192999994816,4cyclictest0-21swapper/020:45:140
2193009994740,5cyclictest2260502-21kworker/u8:0+events_unbound22:50:423
2193002994738,5cyclictest2294376-21unixbench_singl00:00:261
2192999994614,6cyclictest0-21swapper/000:40:010
2192999994613,7cyclictest2248118-21grep21:45:250
2193006994536,4cyclictest0-21swapper/219:35:002
2193006994535,6cyclictest2300577-21cut00:20:152
2192999994521,20cyclictest0-21swapper/020:45:000
2193009994434,6cyclictest2244711-21unixbench_singl21:35:253
2193002994434,7cyclictest2224667-21sendmail20:40:001
2192999994417,6cyclictest0-21swapper/020:30:010
2193009994332,7cyclictest2237884-21grep21:15:283
2193009994332,7cyclictest2237884-21grep21:15:283
2193009994330,10cyclictest391ktimers/300:25:083
2193009994329,11cyclictest391ktimers/320:05:153
2193009994324,9cyclictest131rcu_preempt23:03:143
2193006994333,7cyclictest2251962-21sendmail22:00:002
2193006994330,9cyclictest0-21swapper/220:35:002
2192999994314,5cyclictest0-21swapper/023:35:230
2193009994233,7cyclictest2265431-21sshd22:35:383
2192999994230,9cyclictest121ktimers/023:20:130
2192999994131,6cyclictest0-21swapper/019:15:020
2193009994024,10cyclictest131rcu_preempt20:57:273
2193006994033,4cyclictest2277744-21idleruntime-cro23:15:002
2192999994031,7cyclictest2293089-21cron23:59:590
2193009993932,4cyclictest2194775-21munin-node19:15:013
2193006993928,7cyclictest2282860-21apt23:30:012
2193002993932,5cyclictest2226349-21kworker/u8:3+events_unbound21:10:211
2193002993932,5cyclictest2226349-21kworker/u8:3+events_unbound21:10:211
2193002993931,4cyclictest2200564-21sh19:30:011
2193002993929,5cyclictest0-21swapper/120:25:011
2192999993930,6cyclictest2265380-21unixbench_singl22:35:240
2193009993830,4cyclictest0-21swapper/323:30:013
2193009993829,5cyclictest2284932-21fschecks_count23:35:153
2193009993825,9cyclictest2210801-21idleruntime-cro20:00:003
2193006993831,4cyclictest2291391-21munin-plugin-st23:55:002
2193006993831,4cyclictest2240926-21sshd21:25:232
2193006993831,4cyclictest2240926-21sshd21:25:232
2193006993831,4cyclictest0-21swapper/220:55:162
2193006993827,8cyclictest311ktimers/221:45:142
2192999993829,6cyclictest0-21swapper/022:05:290
2193009993729,4cyclictest0-21swapper/300:00:253
2193009993727,6cyclictest2284554-21sh23:34:593
2193009993725,10cyclictest391ktimers/323:15:133
2193006993728,5cyclictest0-21swapper/222:45:002
2193002993729,4cyclictest0-21swapper/121:05:151
2193002993726,7cyclictest0-21swapper/122:40:261
2192999993727,6cyclictest0-21swapper/020:35:010
2193009993627,5cyclictest0-21swapper/322:20:003
2193006993627,5cyclictest0-21swapper/223:15:442
2192999993626,7cyclictest0-21swapper/021:00:010
2193009993511,9cyclictest40-21ksoftirqd/319:15:023
2193002993525,5cyclictest0-21swapper/121:24:591
2192999993527,4cyclictest0-21swapper/019:50:000
2192999993526,6cyclictest0-21swapper/022:00:250
2192999993526,5cyclictest0-21swapper/021:35:160
2192999993524,7cyclictest0-21swapper/022:25:000
2193009993428,4cyclictest2250098-21kworker/u8:2+events_unbound22:00:303
2193009993424,7cyclictest2229309-21grep20:50:233
219300999340,15cyclictest0-21swapper/319:40:123
2193006993428,3cyclictest0-21swapper/219:40:002
2193006993426,4cyclictest2198380-21unixbench_multi19:20:252
2193002993426,4cyclictest0-21swapper/121:35:001
2193002993422,8cyclictest2279442-21latency_hist23:20:011
2193009993323,6cyclictest0-21swapper/323:20:253
2193009993317,4cyclictest131rcu_preempt20:00:133
2193009993314,3cyclictest131rcu_preempt22:58:513
2193002993325,4cyclictest0-21swapper/100:20:241
2193002993323,7cyclictest2240412-21fschecks_count21:25:161
2193002993323,7cyclictest2240412-21fschecks_count21:25:151
2192999993325,4cyclictest0-21swapper/023:00:010
2193009993226,4cyclictest2200389-21kworker/u8:1+events_unbound19:50:063
2193009993222,6cyclictest2297770-21grep00:10:233
2193009993218,6cyclictest1077429-21kworker/u8:3+events_unbound19:20:093
2193009993216,5cyclictest131rcu_preempt21:00:193
2193009993215,5cyclictest131rcu_preempt19:30:183
2193009993215,3cyclictest131rcu_preempt22:29:443
2193009993215,3cyclictest131rcu_preempt22:29:433
2193009993215,3cyclictest131rcu_preempt20:47:553
2193009993214,8cyclictest2226349-21kworker/u8:3+events_unbound21:20:423
2193009993212,12cyclictest131rcu_preempt22:20:213
2193009993211,3cyclictest131rcu_preempt23:44:213
2193006993224,4cyclictest0-21swapper/221:35:242
2193006993224,4cyclictest0-21swapper/220:00:252
2193006993222,7cyclictest311ktimers/219:15:132
219300299326,4cyclictest131rcu_preempt20:55:141
2193002993226,4cyclictest2275917-21kworker/u8:2+events_unbound23:10:451
2193002993224,4cyclictest0-21swapper/120:40:241
2193002993224,4cyclictest0-21swapper/100:25:231
2193002993224,4cyclictest0-21swapper/100:08:241
219300999319,12cyclictest2275917-21kworker/u8:2+events_unbound23:12:323
2193009993124,4cyclictest2246431-21unixbench_singl21:40:263
2193009993119,5cyclictest131rcu_preempt22:40:133
2193009993113,10cyclictest131rcu_preempt20:33:213
2193009993112,4cyclictest0-21swapper/321:14:343
2193009993112,4cyclictest0-21swapper/321:14:343
2193009993112,3cyclictest131rcu_preempt20:35:503
2193009993112,3cyclictest0-21swapper/320:42:323
2193002993122,4cyclictest0-21swapper/122:35:241
2193002993121,5cyclictest0-21swapper/121:39:591
2193002993120,7cyclictest2215653-21grep20:10:231
2192999993123,5cyclictest0-21swapper/020:55:010
2192999993123,4cyclictest0-21swapper/020:25:010
219300999309,5cyclictest0-21swapper/320:26:473
219300999309,11cyclictest40-21ksoftirqd/321:55:253
2193009993022,6cyclictest2200389-21kworker/u8:1+events_unbound19:29:083
2193009993019,7cyclictest2203562-21grep19:35:243
2193009993016,5cyclictest2207015-21kworker/u8:0+events_unbound20:14:253
2193009993014,5cyclictest131rcu_preempt22:45:243
2193009993012,10cyclictest0-21swapper/300:22:553
2193009993011,6cyclictest131rcu_preempt20:15:113
2193009993010,12cyclictest40-21ksoftirqd/319:50:013
2193006993024,3cyclictest0-21swapper/223:30:172
2193006993022,4cyclictest0-21swapper/219:50:272
2193006993020,6cyclictest2194226-21grep19:10:272
2193002993021,6cyclictest2298441-21latency_hist00:15:011
2193002993019,7cyclictest0-21swapper/119:35:221
2193002993019,5cyclictest2207015-21kworker/u8:0+events_unbound20:06:151
2192999993021,5cyclictest0-21swapper/019:20:240
219300999298,11cyclictest40-21ksoftirqd/322:05:293
219300999298,11cyclictest40-21ksoftirqd/300:15:243
2193009992923,4cyclictest2303587-21kworker/u8:1+events_unbound00:38:423
2193009992922,5cyclictest2260502-21kworker/u8:0+events_unbound22:30:403
2193009992920,4cyclictest131rcu_preempt21:50:163
2193009992918,7cyclictest2233771-21kernelversion21:05:183
2193009992917,4cyclictest131rcu_preempt23:45:233
2193009992917,4cyclictest131rcu_preempt23:45:233
2193009992916,6cyclictest2286047-21kworker/u8:2+events_unbound23:52:403
2193009992914,3cyclictest131rcu_preempt23:06:353
2193009992913,3cyclictest131rcu_preempt00:32:523
2193009992912,10cyclictest0-21swapper/321:27:503
2193009992912,10cyclictest0-21swapper/321:27:503
2193006992921,4cyclictest0-21swapper/222:50:152
2193006992921,4cyclictest0-21swapper/221:20:002
2193006992921,4cyclictest0-21swapper/221:20:002
2193006992919,6cyclictest0-21swapper/223:45:252
2193006992919,6cyclictest0-21swapper/223:45:242
2193006992919,6cyclictest0-21swapper/200:20:012
2193006992918,6cyclictest0-21swapper/222:25:012
219300299292,23cyclictest2212058-21unixbench_multi20:00:261
2193002992921,4cyclictest0-21swapper/100:35:241
2193002992912,3cyclictest0-21swapper/120:25:121
2192999992923,3cyclictest0-21swapper/023:45:150
2192999992923,3cyclictest0-21swapper/023:45:140
2192999992922,4cyclictest13550irq/42-30be0000.ethernet19:40:010
2192999992921,5cyclictest0-21swapper/021:24:590
2192999992921,4cyclictest0-21swapper/020:10:230
2192999992920,6cyclictest0-21swapper/020:00:170
2192999992919,7cyclictest121ktimers/022:15:130
219300999289,12cyclictest131rcu_preempt00:10:013
2193009992812,5cyclictest131rcu_preempt21:45:153
2193009992811,9cyclictest131rcu_preempt20:20:113
2193006992821,4cyclictest0-21swapper/222:30:162
2193006992820,5cyclictest2305890-21fschecks_time00:35:162
2193006992818,6cyclictest2272627-21cat23:00:012
2193002992818,7cyclictest2281546-21tune2fs23:25:141
2193002992818,7cyclictest2209525-21tune2fs19:55:171
2193002992818,6cyclictest2194220-21head19:10:261
2193002992816,8cyclictest0-21swapper/100:30:261
219299999288,17cyclictest2240928-21sshd21:25:220
219299999288,17cyclictest2240928-21sshd21:25:220
2192999992819,5cyclictest0-21swapper/023:30:010
219300999279,11cyclictest40-21ksoftirqd/321:30:203
2193009992712,6cyclictest131rcu_preempt22:10:243
2193006992719,4cyclictest311ktimers/222:00:122
2193006992719,4cyclictest0-21swapper/222:25:342
2193006992719,4cyclictest0-21swapper/222:25:342
2193006992719,4cyclictest0-21swapper/221:00:252
2193006992718,6cyclictest2280701-21grep23:20:242
2193006992716,7cyclictest2210390-21grep19:55:262
2193002992720,3cyclictest0-21swapper/119:20:011
2193002992719,4cyclictest0-21swapper/123:20:241
2192999992721,3cyclictest0-21swapper/022:45:160
2192999992721,3cyclictest0-21swapper/021:30:170
2192999992720,3cyclictest0-21swapper/021:15:220
2192999992720,3cyclictest0-21swapper/021:15:220
2192999992719,5cyclictest0-21swapper/023:20:010
2192999992719,5cyclictest0-21swapper/019:30:250
2193006992619,4cyclictest2296501-21cron00:10:002
2193006992619,4cyclictest0-21swapper/219:30:012
2193002992620,4cyclictest2245007-21kworker/u8:2+events_unbound21:40:271
2193002992619,4cyclictest0-21swapper/121:45:241
2193002992619,4cyclictest0-21swapper/120:15:251
2193002992616,7cyclictest2292645-21grep23:55:261
2193002992616,6cyclictest2202258-21sh19:35:001
2192999992622,2cyclictest13550irq/42-30be0000.ethernet00:20:100
2192999992619,3cyclictest0-21swapper/023:54:590
2192999992618,5cyclictest0-21swapper/022:00:000
2192999992618,4cyclictest0-21swapper/022:10:310
219299999261,6cyclictest2305056-21users00:30:270
2192999992616,7cyclictest2210370-21grep19:55:270
2192999992616,6cyclictest2200626-21grep19:30:020
219299999261,5cyclictest2262399-21apt22:30:000
219299999261,5cyclictest2262399-21apt22:30:000
2193006992519,3cyclictest0-21swapper/200:15:012
2193006992518,3cyclictest0-21swapper/219:40:252
2193006992517,5cyclictest0-21swapper/220:25:252
2193006992517,4cyclictest2238757-21fschecks_time21:20:162
2193006992517,4cyclictest0-21swapper/223:35:262
2193006992510,10cyclictest204-21dbus-daemon21:30:232
2193002992519,3cyclictest0-21swapper/122:05:011
2193002992513,8cyclictest2229301-21grep20:50:241
219300299250,4cyclictest0-21swapper/122:07:081
219299999253,19cyclictest0-21swapper/021:05:130
2192999992516,5cyclictest0-21swapper/019:10:270
219299999251,5cyclictest0-21swapper/023:10:130
2192999992515,7cyclictest2232726-21grep21:00:260
219299999251,20cyclictest0-21swapper/019:43:230
2192999992511,9cyclictest0-21swapper/023:05:430
2193006992417,3cyclictest0-21swapper/223:00:252
2193006992416,5cyclictest0-21swapper/222:10:002
2193006992416,5cyclictest0-21swapper/219:45:052
2193006992416,4cyclictest2246410-21unixbench_singl21:40:262
2193002992418,4cyclictest2256919-21kworker/u8:4+events_unbound22:30:191
2193002992418,4cyclictest2246730-21kworker/u8:1+events_unbound21:50:301
2193002992417,5cyclictest2214255-21kworker/u8:2+events_unbound20:30:131
2193002992417,4cyclictest2232754-21unixbench_singl21:00:251
2193002992416,5cyclictest0-21swapper/123:45:231
2193002992416,5cyclictest0-21swapper/123:45:231
2193002992415,6cyclictest0-21swapper/123:10:011
219300299241,3cyclictest2286511-21apt-get23:40:111
219299999249,3cyclictest0-21swapper/022:40:180
2192999992417,4cyclictest0-21swapper/023:00:240
2192999992416,6cyclictest2220929-21kworker/u8:1+events_unbound20:35:250
2192999992416,5cyclictest0-21swapper/021:50:200
219299999241,5cyclictest2209244-21latency_hist19:55:010
2192999992414,7cyclictest2213187-21grep20:05:180
2193006992317,3cyclictest2269219-21latency_hist22:50:002
2193006992316,4cyclictest2305037-21grep00:30:262
2193006992314,4cyclictest0-21swapper/220:20:112
2193002992317,4cyclictest2226349-21kworker/u8:3+events_unbound22:17:411
219299999233,2cyclictest0-21swapper/023:42:110
2192999992316,5cyclictest0-21swapper/000:15:040
2192999992315,5cyclictest0-21swapper/000:30:010
2192999992313,7cyclictest2294061-21which00:00:240
2193006992215,4cyclictest2294816-21munin-plugin-st00:05:002
2193006992211,8cyclictest2225122-21cut20:40:162
2193002992216,3cyclictest0-21swapper/122:50:411
2193002992216,3cyclictest0-21swapper/122:10:171
2193002992215,5cyclictest1077429-21kworker/u8:3+events_unbound19:22:551
2193002992214,4cyclictest0-21swapper/123:54:591
2193002992214,4cyclictest0-21swapper/121:55:161
219299999228,5cyclictest2226349-21kworker/u8:3+events_unbound21:10:580
219299999228,5cyclictest2226349-21kworker/u8:3+events_unbound21:10:580
2192999992214,5cyclictest2284160-21unixbench_singl23:30:250
219300699218,9cyclictest204-21dbus-daemon22:10:322
2193006992114,3cyclictest0-21swapper/222:20:012
2193006992111,6cyclictest0-21swapper/221:10:262
2193006992111,6cyclictest0-21swapper/221:10:252
219300299215,3cyclictest0-21swapper/120:46:141
2193002992115,3cyclictest2284564-21latency_hist23:35:001
2193002992115,3cyclictest0-21swapper/122:55:151
2193002992113,5cyclictest0-21swapper/122:20:261
2193002992113,4cyclictest0-21swapper/119:50:271
2193002992111,7cyclictest2236880-21awk21:15:161
2193002992111,7cyclictest2236880-21awk21:15:151
219299999210,19cyclictest0-21swapper/022:52:350
2193006992015,3cyclictest0-21swapper/220:35:222
2193006992014,3cyclictest0-21swapper/220:55:002
2193006992013,4cyclictest0-21swapper/222:35:182
2193006992010,7cyclictest2213093-21grep20:05:172
2193002992014,4cyclictest2261477-21ntpq22:25:211
2193002992014,4cyclictest2261477-21ntpq22:25:201
2193002992011,6cyclictest2273024-21cut23:00:151
219299999200,18cyclictest0-21swapper/000:06:400
2193006991913,3cyclictest2302512-21idleruntime00:25:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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