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2026-06-16 - 22:43

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 highest latencies:
System rackbslot5s.osadl.org (updated Tue Jun 16, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1954990995144,4cyclictest2027585-21munin-plugin-st10:40:000
1955003995044,4cyclictest2053619-21kworker/u8:1+events_unbound11:59:413
1955003994940,7cyclictest391ktimers/309:40:143
1955003994735,9cyclictest391ktimers/309:05:123
1955003994732,9cyclictest391ktimers/308:55:113
1954999994739,5cyclictest1965964-21munin-run07:40:012
1954990994741,4cyclictest1975959-21kworker/u8:3+events_unbound08:08:500
1955003994537,4cyclictest1977743-21kworker/u8:1+events_unbound08:13:503
1955003994333,6cyclictest1999638-21grep09:15:253
1954999994335,6cyclictest2015288-21kworker/u8:3+events_unbound10:24:252
1954994994333,7cyclictest2027602-21sendmail10:40:001
1955003994236,4cyclictest2015288-21kworker/u8:3+events_unbound10:09:213
1955003994234,4cyclictest2003508-21munin-plugin-st09:30:013
1954999994236,4cyclictest1997987-21kworker/u8:2+events_unbound09:49:132
1954999994219,13cyclictest1958716-21kworker/u8:0-events_power_efficient07:20:382
1955003994132,4cyclictest0-21swapper/312:05:013
1955003994121,12cyclictest2065673-21kworker/u8:0+events_unbound12:30:003
1954999994135,4cyclictest1970867-21kworker/u8:0+events_unbound08:33:532
1954999994132,6cyclictest2031216-21idleruntime-cro10:50:012
1955003994032,4cyclictest0-21swapper/308:20:003
1955003994031,6cyclictest2039681-21unixbench_multi11:10:243
1955003994030,7cyclictest1974052-21grep08:00:263
1954999994031,4cyclictest0-21swapper/211:20:002
1954990994031,4cyclictest0-21swapper/012:39:490
1955003993930,6cyclictest0-21swapper/308:40:003
1955003993930,6cyclictest0-21swapper/308:39:593
1955003993913,9cyclictest131rcu_preempt09:55:123
1954999993930,5cyclictest2013927-21cron10:00:012
1954999993928,4cyclictest2046774-21kworker/u8:2+events_unbound11:34:382
1954999993927,9cyclictest2003502-21idleruntime-cro09:30:012
1954994993927,8cyclictest0-21swapper/109:20:011
1954990993929,6cyclictest0-21swapper/009:20:010
1954990993924,3cyclictest11-21ksoftirqd/010:40:140
1955003993820,5cyclictest131rcu_preempt12:05:233
1955003993818,5cyclictest131rcu_preempt11:35:233
1954999993819,5cyclictest131rcu_preempt11:40:002
1954994993827,6cyclictest2039679-21grep11:10:241
1955003993729,4cyclictest2039802-21kworker/u8:3+events_unbound11:29:373
1955003993726,7cyclictest2049964-21grep11:40:273
1955003993726,7cyclictest2049964-21grep11:40:273
1955003993724,7cyclictest2041518-21kworker/u8:0+events_unbound11:18:413
1955003993719,10cyclictest131rcu_preempt10:37:323
195500399371,15cyclictest0-21swapper/312:20:103
1954999993731,4cyclictest2001433-21kworker/u8:0+events_unbound09:24:062
1954999993729,4cyclictest0-21swapper/211:55:002
1954999993728,6cyclictest1991138-21grep08:50:262
1954999993727,6cyclictest0-21swapper/212:00:242
1954994993728,6cyclictest0-21swapper/111:05:011
1954994993726,8cyclictest1956821-21munin-node07:15:021
1955003993626,7cyclictest381rcuc/311:05:113
1955003993624,9cyclictest391ktimers/307:20:123
1955003993620,8cyclictest131rcu_preempt08:05:233
1955003993614,12cyclictest131rcu_preempt07:30:163
1954999993626,6cyclictest0-21swapper/208:58:572
1954999993625,7cyclictest1999592-21grep09:15:252
1954999993620,5cyclictest131rcu_preempt10:40:112
1954999993618,12cyclictest131rcu_preempt10:15:112
1954999993617,12cyclictest131rcu_preempt07:15:232
1954999993616,11cyclictest131rcu_preempt07:25:142
1954999993614,12cyclictest131rcu_preempt07:30:192
1954994993629,5cyclictest2001433-21kworker/u8:0+events_unbound09:39:081
1954994993628,5cyclictest2062927-21fschecks_count12:20:151
1954994993628,4cyclictest0-21swapper/110:00:011
1954994993624,8cyclictest0-21swapper/107:50:271
1955003993516,5cyclictest1962494-21latency_hist07:30:013
1955003993514,5cyclictest131rcu_preempt08:50:173
1954999993530,3cyclictest311ktimers/208:00:132
1954999993529,4cyclictest1970867-21kworker/u8:0+events_unbound08:18:502
1954999993528,4cyclictest2034833-21munin-plugin-st11:00:012
1954999993527,4cyclictest0-21swapper/209:10:252
1954999993526,6cyclictest1989378-21grep08:45:252
1954999993514,11cyclictest32-21ksoftirqd/211:40:212
1954999993514,11cyclictest32-21ksoftirqd/211:40:202
1954994993527,4cyclictest0-21swapper/107:45:011
1955003993422,9cyclictest391ktimers/310:45:133
1955003993418,5cyclictest131rcu_preempt07:10:253
1955003993418,4cyclictest131rcu_preempt11:30:113
1955003993418,10cyclictest131rcu_preempt08:29:223
1955003993416,9cyclictest0-21swapper/309:50:253
1955003993412,13cyclictest40-21ksoftirqd/312:35:253
1954999993426,6cyclictest1967354-21kworker/u8:2+events_unbound07:48:462
1954999993424,6cyclictest0-21swapper/212:00:012
1954999993422,8cyclictest311ktimers/210:50:272
1954999993413,4cyclictest301rcuc/208:10:012
1954999993410,6cyclictest32-21ksoftirqd/210:40:012
1954994993427,4cyclictest0-21swapper/111:40:001
1954994993426,4cyclictest0-21swapper/109:50:151
1954994993425,5cyclictest0-21swapper/107:15:241
1954994993424,6cyclictest0-21swapper/108:35:271
1954994993424,6cyclictest0-21swapper/108:35:261
1954994993423,8cyclictest2014346-21fschecks_count10:00:161
1954994993423,7cyclictest2034411-21grep10:55:261
1954994993413,5cyclictest1958716-21kworker/u8:0-events_unbound07:45:241
195499099341,10cyclictest19659852basename07:40:010
195500399338,7cyclictest131rcu_preempt10:15:123
1955003993327,4cyclictest1970867-21kworker/u8:0+events_unbound08:24:433
1955003993318,5cyclictest131rcu_preempt07:50:153
1955003993318,3cyclictest131rcu_preempt08:40:243
1955003993316,9cyclictest0-21swapper/307:45:143
1955003993315,5cyclictest131rcu_preempt08:35:013
1955003993314,5cyclictest131rcu_preempt10:55:253
1955003993313,5cyclictest131rcu_preempt07:35:203
1954999993325,4cyclictest0-21swapper/212:25:262
1954999993321,8cyclictest311ktimers/210:25:262
1954999993318,3cyclictest131rcu_preempt10:10:212
1954999993316,5cyclictest2039802-21kworker/u8:3+events_unbound11:29:452
1954999993316,4cyclictest131rcu_preempt12:20:242
1954999993314,4cyclictest0-21swapper/212:39:202
1954999993313,11cyclictest131rcu_preempt12:05:142
1954999993312,12cyclictest131rcu_preempt09:30:142
1954999993312,12cyclictest131rcu_preempt08:40:142
1954999993311,12cyclictest32-21ksoftirqd/208:25:252
1954994993324,5cyclictest0-21swapper/110:45:251
1954994993315,5cyclictest131rcu_preempt09:05:261
1954990993325,6cyclictest2060452-21kworker/u8:2+events_unbound12:19:450
1955003993225,3cyclictest0-21swapper/311:45:243
1955003993215,7cyclictest2060487-21kworker/u8:3+events_unbound12:12:403
195500399321,16cyclictest40-21ksoftirqd/310:45:013
1955003993211,12cyclictest40-21ksoftirqd/308:50:003
195499999325,8cyclictest32-21ksoftirqd/207:10:262
1954999993225,3cyclictest0-21swapper/212:10:262
1954999993224,4cyclictest0-21swapper/208:35:272
1954999993224,4cyclictest0-21swapper/208:35:272
1954999993218,4cyclictest131rcu_preempt10:08:062
1954999993218,3cyclictest131rcu_preempt09:51:402
1954999993216,4cyclictest0-21swapper/211:05:012
195499999321,12cyclictest0-21swapper/207:55:112
1954999993211,12cyclictest32-21ksoftirqd/209:00:232
1954999993210,11cyclictest32-21ksoftirqd/210:35:012
1954999993210,10cyclictest0-21swapper/211:12:022
1954994993224,5cyclictest0-21swapper/110:30:001
1954994993224,4cyclictest0-21swapper/111:30:001
1954994993224,4cyclictest0-21swapper/108:15:271
1954994993223,5cyclictest0-21swapper/108:05:161
1954994993223,4cyclictest0-21swapper/110:44:281
1954994993217,9cyclictest131rcu_preempt09:13:531
1954994993217,8cyclictest2053619-21kworker/u8:1+events_unbound11:57:341
1954994993213,5cyclictest2048480-21kworker/u8:0+events_unbound11:44:101
1954994993213,5cyclictest2048480-21kworker/u8:0+events_unbound11:44:091
195499099327,4cyclictest131rcu_preempt08:45:000
1954990993223,5cyclictest0-21swapper/010:10:270
195500399319,5cyclictest131rcu_preempt11:20:223
195500399316,7cyclictest0-21swapper/311:50:123
1955003993125,4cyclictest1989755-21kworker/u8:3+events_unbound09:00:413
1955003993124,4cyclictest1958933-21munin-plugin-st07:20:003
1955003993124,4cyclictest0-21swapper/311:00:243
1955003993124,4cyclictest0-21swapper/309:20:183
1955003993120,7cyclictest2010092-21grep09:45:243
1955003993115,5cyclictest2008817-21kworker/u8:0+events_unbound10:12:293
1955003993115,5cyclictest131rcu_preempt09:35:243
1955003993114,6cyclictest131rcu_preempt08:00:023
1955003993111,11cyclictest40-21ksoftirqd/312:35:013
195499999318,15cyclictest32-21ksoftirqd/210:00:202
1954999993123,5cyclictest1958716-21kworker/u8:0+events_unbound07:42:412
1954999993121,6cyclictest0-21swapper/208:10:262
1954999993117,10cyclictest311ktimers/211:20:132
1954999993116,7cyclictest1970867-21kworker/u8:0-events_freezable_power_08:20:222
1954999993116,4cyclictest131rcu_preempt12:34:252
1954999993110,11cyclictest32-21ksoftirqd/209:40:202
1954999993110,10cyclictest131rcu_preempt09:36:052
1954994993123,4cyclictest0-21swapper/110:20:251
1954994993116,9cyclictest131rcu_preempt11:15:211
1954994993113,6cyclictest131rcu_preempt11:50:131
1954994993112,11cyclictest24-21ksoftirqd/111:05:251
1954990993126,3cyclictest0-21swapper/009:50:120
1954990993114,14cyclictest0-21swapper/011:25:120
195500399306,9cyclictest40-21ksoftirqd/310:55:013
1955003993022,4cyclictest0-21swapper/310:00:243
1955003993017,3cyclictest131rcu_preempt10:25:243
1955003993011,5cyclictest131rcu_preempt10:34:243
195499999309,11cyclictest131rcu_preempt12:15:142
1954999993015,3cyclictest131rcu_preempt11:47:102
1954999993013,5cyclictest131rcu_preempt11:00:132
1954999993011,4cyclictest131rcu_preempt07:55:012
1954994993022,4cyclictest0-21swapper/107:55:261
1954994993019,5cyclictest1970867-21kworker/u8:0+events_unbound08:20:211
1954994993014,7cyclictest131rcu_preempt09:25:131
1954994993014,10cyclictest131rcu_preempt10:15:221
1954994993012,7cyclictest131rcu_preempt11:45:101
1954994993011,7cyclictest131rcu_preempt09:40:121
1954990993023,5cyclictest1993222-21kworker/u8:1+events_unbound09:09:020
1954990993023,4cyclictest2022475-21cron10:25:010
1954990993022,4cyclictest0-21swapper/012:10:010
1954990993017,10cyclictest1954984-21cyclictest11:30:090
1955003992916,8cyclictest391ktimers/309:34:593
1955003992914,5cyclictest131rcu_preempt09:10:173
1955003992913,5cyclictest131rcu_preempt12:20:013
1954994992921,5cyclictest0-21swapper/112:15:001
1954994992920,6cyclictest0-21swapper/107:40:001
1954994992918,5cyclictest2027476-21kworker/u8:1+events_unbound10:52:001
1954994992916,7cyclictest131rcu_preempt11:30:191
1954994992912,9cyclictest131rcu_preempt08:50:231
1954994992912,7cyclictest131rcu_preempt12:35:121
1954990992919,7cyclictest2034847-21sendmail11:00:000
195499099291,5cyclictest131rcu_preempt10:50:130
1954994992821,4cyclictest0-21swapper/112:25:271
1954994992821,4cyclictest0-21swapper/108:55:151
1954994992820,5cyclictest0-21swapper/107:25:261
1954994992819,5cyclictest0-21swapper/108:40:251
1954994992817,5cyclictest2060452-21kworker/u8:2+events_unbound12:34:571
1954994992811,8cyclictest131rcu_preempt12:02:181
195499499281,14cyclictest0-21swapper/112:05:111
195499099289,10cyclictest131rcu_preempt12:04:410
1954990992822,3cyclictest1977909-21cron08:15:000
1954990992821,4cyclictest0-21swapper/011:55:250
1954990992821,3cyclictest0-21swapper/008:45:210
1954990992820,5cyclictest2024178-21sh10:29:590
1954990992818,7cyclictest1960640-21cron07:25:010
1954990992813,12cyclictest1954984-21cyclictest07:30:120
195499099280,6cyclictest131rcu_preempt08:50:140
1954994992719,5cyclictest0-21swapper/109:05:011
1954994992719,4cyclictest0-21swapper/109:45:141
1954994992718,4cyclictest131rcu_preempt07:31:031
1954994992716,4cyclictest131rcu_preempt09:30:051
1954994992715,4cyclictest131rcu_preempt10:30:181
1954994992713,4cyclictest131rcu_preempt12:16:041
1954990992722,3cyclictest2034474-21kworker/u8:2-ext4-rsv-conversion11:05:000
1954990992720,5cyclictest1993222-21kworker/u8:1+events_unbound09:10:160
1954990992720,4cyclictest0-21swapper/012:25:270
1954990992720,4cyclictest0-21swapper/008:25:260
1954990992720,3cyclictest0-21swapper/011:40:270
1954990992720,3cyclictest0-21swapper/011:40:270
1954990992720,3cyclictest0-21swapper/011:40:000
1954990992720,3cyclictest0-21swapper/011:20:270
1954990992719,5cyclictest1994504-21unixbench_multi09:00:240
195499099270,5cyclictest131rcu_preempt11:15:130
195500399267,11cyclictest40-21ksoftirqd/310:20:233
195499499264,11cyclictest24-21ksoftirqd/107:23:151
1954994992618,5cyclictest1989755-21kworker/u8:3+events_unbound08:50:011
1954994992611,9cyclictest131rcu_preempt08:10:231
1954994992610,8cyclictest131rcu_preempt11:21:391
1954994992610,8cyclictest131rcu_preempt10:11:451
1954994992610,8cyclictest0-21swapper/109:20:181
195499099262,5cyclictest1958920-21cron07:20:000
1954990992621,3cyclictest13550irq/42-30be0000.ethernet07:55:230
1954990992620,3cyclictest0-21swapper/010:05:250
1954990992620,3cyclictest0-21swapper/008:40:010
1954990992620,3cyclictest0-21swapper/008:40:000
1954990992620,3cyclictest0-21swapper/007:45:230
1954990992618,4cyclictest0-21swapper/012:20:240
1954990992617,5cyclictest1993254-21kthreadd09:00:010
1954990992616,8cyclictest0-21swapper/007:30:010
1954990992616,6cyclictest0-21swapper/010:15:240
1954990992615,7cyclictest11-21ksoftirqd/008:30:280
195499099260,4cyclictest131rcu_preempt09:20:140
195499499256,8cyclictest131rcu_preempt08:30:131
1954994992518,4cyclictest0-21swapper/110:05:271
1954994992512,3cyclictest0-21swapper/108:25:211
1954990992519,4cyclictest2013928-21cron10:00:000
1954990992518,3cyclictest0-21swapper/009:25:210
1954990992517,6cyclictest2060452-21kworker/u8:2+events_unbound12:34:480
1954990992517,6cyclictest2038075-21kworker/u8:1+events_unbound11:14:340
1954990992511,6cyclictest131rcu_preempt08:20:150
1954994992416,5cyclictest1973193-21fschecks_count08:00:161
1954990992418,2cyclictest0-21swapper/009:30:230
1954990992417,4cyclictest0-21swapper/009:40:000
195499099241,19cyclictest0-21swapper/009:48:590
1954990992317,3cyclictest13550irq/42-30be0000.ethernet10:30:240
1954990992317,2cyclictest0-21swapper/010:45:260
1954990992316,3cyclictest0-21swapper/007:40:250
195499099231,18cyclictest0-21swapper/008:16:090
195499099230,19cyclictest0-21swapper/011:52:380
195499099230,19cyclictest0-21swapper/009:43:010
195499099221,6cyclictest0-21swapper/011:49:340
1954990992216,3cyclictest0-21swapper/007:50:170
1954990992215,3cyclictest0-21swapper/011:09:260
1954990992215,3cyclictest0-21swapper/008:00:190
195499099221,17cyclictest0-21swapper/007:14:130
195499099220,18cyclictest0-21swapper/012:12:230
195499099220,18cyclictest0-21swapper/010:01:110
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