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2026-04-15 - 23:24

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 Wed Apr 15, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
386385995440,10cyclictest121ktimers/010:15:110
386385995140,7cyclictest501325-21grep12:35:240
386385994942,4cyclictest390342-21sendmail07:20:010
386385994941,6cyclictest121ktimers/007:50:130
386393994838,7cyclictest417345-21grep08:35:242
386389994736,6cyclictest453237-21fschecks_time10:20:141
386385994738,6cyclictest454504-21munin-plugin-st10:25:000
386393994636,6cyclictest486436-21cron11:55:002
386393994536,5cyclictest452577-21sendmail10:20:012
386397994433,7cyclictest459820-21sendmail10:40:013
386393994435,6cyclictest392492-21fschecks_time07:25:152
386389994429,11cyclictest231ktimers/109:35:111
386385994430,11cyclictest121ktimers/008:55:120
386397994335,5cyclictest379305-21kworker/u8:0+events_unbound07:23:233
386385994333,6cyclictest459821-21idleruntime-cro10:40:010
386385994324,5cyclictest440247-21latency_hist09:45:010
386397994234,5cyclictest402274-21munin-plugin-st07:55:003
386397994233,6cyclictest393318-21unixbench_singl07:25:243
386397994132,6cyclictest397153-21munin-plugin-st07:40:003
386393994134,4cyclictest403958-21cron08:00:002
386393994128,9cyclictest311ktimers/207:15:122
386385994134,5cyclictest436477-21kworker/u8:3+events_unbound09:38:430
386385994133,5cyclictest426581-21munin-plugin-st09:05:000
386385994133,5cyclictest426581-21munin-plugin-st09:05:000
386397994033,4cyclictest463859-21fschecks_time10:50:153
386389993927,9cyclictest443825-21apt09:55:001
386385993931,5cyclictest498397-21munin-plugin-st12:30:000
386385993927,8cyclictest496207-21grep12:20:250
386397993830,4cyclictest424677-21kworker/u8:109:00:003
386397993829,6cyclictest403560-21unixbench_singl07:55:283
386389993829,6cyclictest459399-21unixbench_singl10:35:261
38638599383,8cyclictest11-21ksoftirqd/009:30:120
386385993829,5cyclictest417421-21unixbench_singl08:35:240
386385993823,5cyclictest391974-21kworker/u8:3+events_unbound07:41:420
386385993823,5cyclictest391974-21kworker/u8:3+events_unbound07:41:420
386397993729,5cyclictest442140-21idleruntime-cro09:50:003
386393993725,7cyclictest397139-21sh07:40:002
386385993730,5cyclictest494789-21kworker/u8:0+events_unbound12:19:090
386385993730,5cyclictest494789-21kworker/u8:0+events_unbound12:19:090
386385993729,4cyclictest0-21swapper/008:50:230
386385993725,8cyclictest0-21swapper/009:20:000
386385993725,7cyclictest396689-21unixbench_multi07:35:240
386385993714,15cyclictest463191-21kworker/u8:1+events_unbound11:13:020
386397993629,4cyclictest429973-21sh09:15:003
386389993628,4cyclictest477023-21unixbench_multi11:25:241
386389993628,4cyclictest477023-21unixbench_multi11:25:241
386389993628,4cyclictest0-21swapper/107:20:011
386389993626,6cyclictest0-21swapper/111:00:261
38638599362,9cyclictest11-21ksoftirqd/010:00:110
38638599362,9cyclictest11-21ksoftirqd/010:00:110
386385993624,8cyclictest450394-21grep10:10:240
386385993622,10cyclictest121ktimers/011:20:110
386397993529,4cyclictest4779392sleep311:30:123
386397993527,4cyclictest0-21swapper/309:40:013
386397993527,4cyclictest0-21swapper/308:20:013
386397993526,6cyclictest0-21swapper/308:25:263
386397993525,6cyclictest0-21swapper/309:05:003
386397993525,6cyclictest0-21swapper/309:05:003
386397993524,7cyclictest0-21swapper/307:15:013
386389993528,4cyclictest482857-21http11:45:001
386397993426,4cyclictest0-21swapper/310:45:263
386397993425,6cyclictest0-21swapper/310:10:013
386397993425,6cyclictest0-21swapper/309:20:143
386397993424,6cyclictest0-21swapper/307:45:003
386397993424,6cyclictest0-21swapper/307:45:003
386393993424,7cyclictest472110-21latency_hist11:15:012
386389993424,6cyclictest410316-21unixbench_multi08:15:251
386389993423,7cyclictest0-21swapper/109:05:251
386385993425,5cyclictest0-21swapper/011:50:250
386385993422,8cyclictest413797-21grep08:25:260
38638599341,8cyclictest11-21ksoftirqd/011:00:130
386397993324,6cyclictest0-21swapper/308:55:003
386397993324,6cyclictest0-21swapper/307:30:243
386397993323,6cyclictest0-21swapper/312:40:003
386397993322,7cyclictest0-21swapper/311:20:243
386393993326,4cyclictest463439-21apt10:50:012
386393993326,4cyclictest0-21swapper/207:10:262
386393993324,6cyclictest400156-21grep07:45:272
386393993324,6cyclictest400156-21grep07:45:272
386389993325,4cyclictest0-21swapper/112:10:141
386389993325,4cyclictest0-21swapper/112:10:141
386389993324,6cyclictest433410-21munin-plugin-st09:25:011
386389993323,6cyclictest0-21swapper/109:30:241
386389993322,7cyclictest0-21swapper/111:35:001
386385993324,6cyclictest0-21swapper/011:20:000
386385993323,6cyclictest0-21swapper/007:25:240
386385993322,7cyclictest491563-21sh12:10:000
386385993320,11cyclictest386378-21cyclictest08:20:120
386385993318,6cyclictest413860-21kworker/u8:1+events_unbound09:29:330
386397993225,4cyclictest474100-21latency_hist11:20:013
386397993222,6cyclictest0-21swapper/311:45:243
386393993224,4cyclictest0-21swapper/211:30:002
386393993224,4cyclictest0-21swapper/211:30:002
386393993222,6cyclictest0-21swapper/208:20:012
386389993224,4cyclictest466844-21munin-run11:00:001
386389993223,5cyclictest481117-21audit_send_reply11:40:001
386389993223,5cyclictest456086-21kworker/u8:2-ext4-rsv-conversion10:30:011
386389993221,7cyclictest0-21swapper/110:30:251
386389993220,5cyclictest4638592fschecks_time10:50:151
386385993222,5cyclictest0-21swapper/011:34:050
386397993123,4cyclictest452575-21idleruntime-cro10:20:013
386397993121,6cyclictest0-21swapper/311:55:153
386397993121,6cyclictest0-21swapper/310:40:263
386397993120,7cyclictest0-21swapper/307:15:243
386393993125,4cyclictest433078-21kworker/u8:2+events_unbound09:28:402
386393993124,4cyclictest468567-21munin-plugin-st11:05:012
386393993124,4cyclictest450964-21latency_hist10:15:012
386393993124,4cyclictest0-21swapper/211:20:152
38638599318,11cyclictest0-21swapper/008:42:290
386385993119,8cyclictest466420-21grep10:55:240
386397993020,6cyclictest0-21swapper/310:10:253
386397993020,5cyclictest0-21swapper/312:00:243
386397993019,8cyclictest391ktimers/308:30:123
386397993019,7cyclictest492817-21grep12:10:233
386397993019,7cyclictest492817-21grep12:10:233
386397993018,7cyclictest0-21swapper/310:00:253
386397993018,7cyclictest0-21swapper/310:00:253
386393993024,3cyclictest0-21swapper/212:10:232
386393993024,3cyclictest0-21swapper/212:10:222
386393993023,4cyclictest0-21swapper/210:40:162
386393993022,4cyclictest0-21swapper/208:30:262
386393993022,4cyclictest0-21swapper/208:10:202
386393993021,4cyclictest426101-21grep09:00:252
386393993021,4cyclictest426101-21grep09:00:252
386389993020,7cyclictest0-21swapper/110:05:231
386389993019,7cyclictest0-21swapper/109:40:241
386389993018,8cyclictest231ktimers/111:50:111
386385993024,4cyclictest151rcuc/010:40:130
386385993023,4cyclictest0-21swapper/011:40:000
386397992923,4cyclictest436477-21kworker/u8:3+events_unbound09:32:413
386397992922,4cyclictest0-21swapper/311:25:153
386397992922,4cyclictest0-21swapper/311:25:153
386397992920,6cyclictest0-21swapper/310:20:233
386397992920,6cyclictest0-21swapper/308:45:003
386397992920,5cyclictest431713-21idleruntime-cro09:20:003
386397992919,6cyclictest0-21swapper/308:10:243
386393992920,6cyclictest0-21swapper/210:30:012
386393992919,7cyclictest1-21systemd11:49:072
386393992918,7cyclictest433388-21cron09:25:012
386393992918,6cyclictest0-21swapper/211:00:012
386389992919,7cyclictest0-21swapper/108:10:201
386389992919,6cyclictest0-21swapper/110:40:251
386389992919,6cyclictest0-21swapper/109:15:261
386385992922,4cyclictest0-21swapper/011:30:000
386385992922,4cyclictest0-21swapper/011:30:000
386385992922,3cyclictest0-21swapper/010:45:230
386385992920,5cyclictest0-21swapper/008:15:160
386385992919,6cyclictest0-21swapper/012:35:010
386397992820,4cyclictest0-21swapper/311:40:173
386393992818,6cyclictest445922-21fschecks_count10:00:152
386393992818,6cyclictest445922-21fschecks_count10:00:152
386389992820,4cyclictest0-21swapper/112:20:251
386389992818,6cyclictest0-21swapper/110:10:241
386389992817,7cyclictest1-21systemd12:19:091
386389992817,7cyclictest1-21systemd12:19:091
386389992817,7cyclictest0-21swapper/108:35:011
386389992817,6cyclictest0-21swapper/110:20:011
38638599287,11cyclictest0-21swapper/011:07:250
38638599286,11cyclictest0-21swapper/012:13:300
38638599286,11cyclictest0-21swapper/012:13:300
38638599285,14cyclictest11-21ksoftirqd/012:00:310
38638599283,6cyclictest11-21ksoftirqd/011:55:120
38638599282,9cyclictest11-21ksoftirqd/007:45:140
38638599282,9cyclictest11-21ksoftirqd/007:45:140
386385992821,4cyclictest0-21swapper/009:20:240
386385992821,4cyclictest0-21swapper/008:00:260
386385992819,6cyclictest0-21swapper/008:35:010
386385992818,7cyclictest449171-21basename10:10:010
386385992814,11cyclictest151rcuc/009:55:120
386397992719,4cyclictest0-21swapper/312:25:263
386393992721,4cyclictest445207-21kworker/u8:0+events_unbound10:23:492
386393992720,4cyclictest0-21swapper/212:15:152
386393992720,4cyclictest0-21swapper/212:15:152
386393992719,4cyclictest0-21swapper/208:40:262
386393992718,6cyclictest311ktimers/208:45:152
386393992714,9cyclictest431259-21grep09:15:262
386389992720,4cyclictest0-21swapper/109:00:251
386389992720,4cyclictest0-21swapper/109:00:251
386389992719,5cyclictest0-21swapper/111:05:161
386389992719,4cyclictest0-21swapper/107:15:011
386389992716,8cyclictest397155-21ls07:40:001
38638599277,10cyclictest11-21ksoftirqd/007:20:240
386385992723,2cyclictest0-21swapper/009:50:110
386385992719,6cyclictest421117-21kworker/u8:0+events_unbound09:05:120
386385992719,4cyclictest0-21swapper/008:10:250
386385992713,3cyclictest131rcu_preempt08:45:250
386397992618,5cyclictest0-21swapper/310:55:153
386397992618,4cyclictest0-21swapper/311:05:263
386397992618,4cyclictest0-21swapper/311:00:173
386397992616,7cyclictest417981-21latency_hist08:40:013
386393992620,3cyclictest0-21swapper/209:14:592
386393992619,4cyclictest0-21swapper/209:40:242
386393992619,3cyclictest0-21swapper/207:50:252
386393992618,4cyclictest0-21swapper/208:50:152
386393992616,6cyclictest406956-21grep08:05:262
386389992619,4cyclictest0-21swapper/109:45:241
386389992619,3cyclictest0-21swapper/107:30:241
386389992618,4cyclictest0-21swapper/108:35:241
38638599264,3cyclictest131rcu_preempt11:45:000
386385992618,5cyclictest395467-21cat07:35:010
386385992615,8cyclictest121ktimers/010:25:120
38638599260,16cyclictest483159-21apt-key11:45:010
386397992519,3cyclictest0-21swapper/312:30:133
386397992519,3cyclictest0-21swapper/311:15:013
386397992518,4cyclictest0-21swapper/307:50:003
386397992518,4cyclictest0-21swapper/307:50:003
386397992517,6cyclictest463191-21kworker/u8:1+events_unbound11:39:063
386397992517,5cyclictest0-21swapper/309:40:243
386397992517,4cyclictest0-21swapper/311:50:253
386393992519,3cyclictest0-21swapper/211:30:192
386393992518,4cyclictest0-21swapper/209:45:242
386393992518,4cyclictest0-21swapper/207:30:232
386393992518,3cyclictest0-21swapper/211:45:012
386389992514,7cyclictest0-21swapper/109:25:191
386385992519,4cyclictest413860-21kworker/u8:1+events_unbound09:45:410
386385992518,3cyclictest0-21swapper/007:13:410
38638599251,13cyclictest0-21swapper/009:12:110
38638599251,12cyclictest0-21swapper/007:57:440
386397992417,3cyclictest0-21swapper/310:30:013
386397992414,6cyclictest0-21swapper/309:55:003
386393992418,4cyclictest463191-21kworker/u8:1+events_unbound10:52:402
386393992418,3cyclictest0-21swapper/212:20:252
386393992418,3cyclictest0-21swapper/211:35:162
38639399241,7cyclictest449367-21cat10:10:012
386393992415,6cyclictest311ktimers/211:15:052
386393992413,7cyclictest311ktimers/209:55:132
386389992418,4cyclictest400500-21kworker/u8:0+events_unbound08:03:281
386389992418,3cyclictest0-21swapper/111:15:251
386389992418,3cyclictest0-21swapper/108:25:231
386389992417,4cyclictest0-21swapper/108:00:001
386389992417,3cyclictest0-21swapper/110:00:151
386389992417,3cyclictest0-21swapper/110:00:151
386389992415,6cyclictest0-21swapper/108:05:261
386389992415,6cyclictest0-21swapper/107:40:181
386389992415,6cyclictest0-21swapper/107:40:181
386389992414,6cyclictest231ktimers/108:50:151
386389992414,6cyclictest0-21swapper/112:40:001
38638599247,10cyclictest11-21ksoftirqd/010:30:260
386385992419,3cyclictest464773-21chrt10:50:420
386385992418,4cyclictest391974-21kworker/u8:3+events_unbound08:07:430
386397992318,3cyclictest406963-21unixbench_singl08:05:263
386397992315,5cyclictest0-21swapper/309:55:153
386397992315,5cyclictest0-21swapper/308:45:153
386397992312,8cyclictest491562-21sh12:10:003
386393992317,4cyclictest413860-21kworker/u8:1+events_unbound08:56:212
386393992317,3cyclictest0-21swapper/212:05:202
386393992317,3cyclictest0-21swapper/208:20:162
386393992316,5cyclictest488151-21munin-run12:00:002
386393992316,4cyclictest469786-21tail11:05:252
386393992316,4cyclictest0-21swapper/210:35:172
38639399231,5cyclictest4989252cat12:30:152
38639399231,3cyclictest131rcu_preempt10:30:122
386393992313,7cyclictest436389-21grep09:30:252
386389992317,3cyclictest0-21swapper/112:05:241
386397992215,4cyclictest0-21swapper/312:15:253
386397992215,4cyclictest0-21swapper/312:15:253
38639799220,14cyclictest0-21swapper/310:30:123
386393992216,3cyclictest0-21swapper/207:20:132
386389992216,4cyclictest145-21jbd2/mmcblk1p2-810:45:301
386389992216,3cyclictest0-21swapper/112:00:131
386389992216,3cyclictest0-21swapper/109:55:241
386389992216,3cyclictest0-21swapper/108:40:261
386389992214,5cyclictest231ktimers/112:25:251
386389992214,5cyclictest0-21swapper/108:45:151
386389992212,6cyclictest0-21swapper/107:25:241
386397992115,3cyclictest0-21swapper/309:05:243
386397992115,3cyclictest0-21swapper/308:00:243
386397992112,5cyclictest0-21swapper/308:20:203
38639399213,15cyclictest1-21systemd07:40:122
38639399213,15cyclictest1-21systemd07:40:122
386393992112,6cyclictest0-21swapper/209:50:252
386393992111,8cyclictest500472-21fschecks_count12:35:152
386389992114,5cyclictest407713-21kworker/u8:2+events_unbound08:21:171
386389992114,5cyclictest231ktimers/108:55:131
386389992114,4cyclictest0-21swapper/111:45:141
386389992113,5cyclictest0-21swapper/107:50:251
386389992112,6cyclictest474496-21uniq11:20:151
386389992112,5cyclictest0-21swapper/112:00:001
386393992014,3cyclictest0-21swapper/209:05:202
386389992014,3cyclictest0-21swapper/107:45:151
386389992014,3cyclictest0-21swapper/107:45:151
386389992014,3cyclictest0-21swapper/107:20:201
386393991912,5cyclictest311ktimers/208:00:142
386393991912,5cyclictest0-21swapper/212:25:232
386397991810,5cyclictest495386-21uniq12:20:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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