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2026-01-09 - 20:30

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 376 highest latencies:
System rackbslot5s.osadl.org (updated Fri Jan 09, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1511726995443,7cyclictest1553525-21idleruntime-cro09:10:001
1511726995443,7cyclictest1553525-21idleruntime-cro09:10:001
1511726995241,7cyclictest1610182-21grep11:50:231
1511726995019,11cyclictest131rcu_preempt12:10:121
1511722994839,6cyclictest1617660-21grep12:14:590
1511731994536,6cyclictest1610591-21cron11:55:002
1511735994436,4cyclictest0-21swapper/310:05:013
1511726994431,9cyclictest1516906-21grep07:20:241
151173199421,6cyclictest131rcu_preempt10:50:142
1511726994234,4cyclictest0-21swapper/108:10:001
1511735994125,6cyclictest1582661-21kworker/u8:0+events_unbound10:40:173
1511731994134,5cyclictest1580938-21kworker/u8:2+events_unbound10:34:342
1511731994128,9cyclictest311ktimers/207:45:122
1511726994132,5cyclictest1536410-21kthreadd08:20:011
1511726994130,8cyclictest1578958-21head10:20:241
1511731994033,4cyclictest1543273-21sendmail08:40:012
1511726994031,6cyclictest1624280-21unixbench_singl12:30:251
1511726994029,7cyclictest1528914-21grep07:55:271
1511735993929,4cyclictest0-21swapper/309:20:003
1511731993933,4cyclictest1539643-21kworker/u8:1+events_unbound08:34:172
1511731993928,7cyclictest0-21swapper/210:25:002
151172699391,8cyclictest24-21ksoftirqd/108:50:101
1511722993931,4cyclictest0-21swapper/009:40:010
1511722993929,6cyclictest0-21swapper/011:40:000
1511731993832,4cyclictest1563718-21kworker/u8:2+events_unbound09:49:312
1511731993829,5cyclictest0-21swapper/207:55:012
1511731993828,8cyclictest311ktimers/207:20:122
1511735993730,4cyclictest1570639-21sendmail10:00:003
1511731993730,5cyclictest1518723-21kworker/u8:3+events_unbound07:39:112
1511731993730,4cyclictest0-21swapper/211:10:152
1511731993729,4cyclictest0-21swapper/211:59:592
1511731993727,6cyclictest0-21swapper/209:35:242
1511731993726,7cyclictest0-21swapper/208:20:252
1511726993718,5cyclictest1558509-21kworker/u8:1-events_freezable_power_09:25:251
1511735993628,3cyclictest0-21swapper/311:20:003
1511735993627,6cyclictest0-21swapper/310:40:003
1511735993625,6cyclictest0-21swapper/312:05:003
1511731993627,6cyclictest0-21swapper/211:05:012
1511731993626,6cyclictest0-21swapper/207:10:252
1511731993626,6cyclictest0-21swapper/207:10:252
1511731993621,4cyclictest1546911-21kworker/u8:2+events_unbound09:17:032
1511726993628,4cyclictest0-21swapper/108:10:151
1511722993628,4cyclictest0-21swapper/009:15:000
1511722993628,4cyclictest0-21swapper/009:15:000
1511722993625,7cyclictest0-21swapper/010:35:000
151173599357,7cyclictest40-21ksoftirqd/307:20:113
1511735993524,7cyclictest1605007-21grep11:35:233
1511735993519,5cyclictest1546911-21kworker/u8:2+events_unbound09:06:143
1511735993519,5cyclictest1546911-21kworker/u8:2+events_unbound09:06:133
1511731993525,6cyclictest0-21swapper/210:15:242
1511731993525,4cyclictest1596398-21kworker/u8:0+events_unbound11:15:432
1511726993528,5cyclictest1596398-21kworker/u8:0+events_unbound11:14:371
1511726993516,5cyclictest131rcu_preempt09:15:111
1511726993515,5cyclictest1599922-21kworker/u8:2+events_unbound11:24:431
1511726993512,4cyclictest131rcu_preempt10:50:131
1511722993524,7cyclictest0-21swapper/008:10:010
1511735993428,4cyclictest1539643-21kworker/u8:1+events_unbound08:48:403
1511735993427,4cyclictest0-21swapper/307:55:263
1511735993426,4cyclictest0-21swapper/312:30:163
1511735993426,4cyclictest0-21swapper/308:45:013
1511735993426,4cyclictest0-21swapper/308:30:013
1511735993424,6cyclictest0-21swapper/308:15:263
1511731993427,3cyclictest0-21swapper/209:20:152
1511731993424,6cyclictest0-21swapper/211:40:252
1511731993419,6cyclictest1563718-21kworker/u8:2+events_unbound09:43:582
1511726993426,4cyclictest0-21swapper/111:55:161
1511726993425,5cyclictest0-21swapper/109:00:001
1511726993423,7cyclictest0-21swapper/110:10:241
1511726993416,6cyclictest131rcu_preempt11:45:111
1511722993428,3cyclictest0-21swapper/012:05:000
1511722993427,3cyclictest0-21swapper/011:40:250
1511722993425,6cyclictest1541957-21fschecks_time08:35:130
1511722993424,6cyclictest0-21swapper/011:05:250
1511735993327,3cyclictest0-21swapper/308:40:013
1511735993325,4cyclictest0-21swapper/308:20:243
1511735993324,6cyclictest0-21swapper/309:00:153
1511731993323,6cyclictest0-21swapper/212:15:242
1511731993322,7cyclictest0-21swapper/212:05:242
1511731993312,7cyclictest1582661-21kworker/u8:0+events_unbound10:35:202
1511726993327,4cyclictest1619529-21kworker/u8:1+events_unbound12:39:411
1511726993327,4cyclictest1619529-21kworker/u8:1+events_unbound12:39:411
1511726993316,3cyclictest131rcu_preempt08:45:011
1511722993325,4cyclictest0-21swapper/009:00:240
1511735993225,5cyclictest1518723-21kworker/u8:3+events_unbound07:34:093
1511735993224,4cyclictest0-21swapper/308:00:253
1511735993223,6cyclictest0-21swapper/311:30:003
1511735993223,5cyclictest0-21swapper/308:15:013
1511735993221,7cyclictest1575503-21grep10:10:253
1511735993221,7cyclictest0-21swapper/312:25:003
1511731993223,5cyclictest0-21swapper/209:35:002
1511731993222,6cyclictest0-21swapper/210:55:252
1511731993222,6cyclictest0-21swapper/208:05:232
151172699327,12cyclictest131rcu_preempt07:15:021
1511726993221,8cyclictest1577688-21basename10:20:001
1511726993221,7cyclictest0-21swapper/107:15:011
1511726993221,7cyclictest0-21swapper/107:15:001
1511722993225,4cyclictest1556941-21munin-run09:20:000
1511722993225,3cyclictest1601841-21kthreadd11:30:000
1511722993224,4cyclictest0-21swapper/010:10:250
1511735993124,5cyclictest1558509-21kworker/u8:1+events_unbound09:25:293
1511735993121,6cyclictest1600127-21sh11:25:003
151173599311,20cyclictest0-21swapper/308:32:073
151173599311,17cyclictest0-21swapper/311:50:553
1511731993122,6cyclictest0-21swapper/210:45:002
1511731993121,6cyclictest0-21swapper/212:35:242
1511731993121,6cyclictest0-21swapper/212:35:242
1511731993121,6cyclictest0-21swapper/212:10:252
1511731993121,6cyclictest0-21swapper/211:10:012
1511731993118,5cyclictest131rcu_preempt07:30:182
1511731993115,4cyclictest131rcu_preempt08:27:402
1511726993122,6cyclictest231ktimers/112:20:111
1511726993115,4cyclictest1507855-21kworker/u8:2+events_unbound07:30:411
1511726993110,12cyclictest131rcu_preempt12:05:151
1511722993123,5cyclictest1528092-21fschecks_time07:55:170
1511722993123,4cyclictest0-21swapper/008:20:000
1511722993123,4cyclictest0-21swapper/008:04:130
1511735993023,5cyclictest1522265-21kworker/u8:1+events_unbound07:42:423
1511735993022,4cyclictest0-21swapper/311:10:263
1511735993020,6cyclictest1512886-21grep07:10:253
1511735993020,6cyclictest1512886-21grep07:10:253
1511735993019,5cyclictest1600353-21kworker/u8:3+events_unbound11:30:123
1511735993017,6cyclictest1567176-21kworker/u8:1+events_unbound10:15:213
1511735993011,5cyclictest131rcu_preempt09:14:373
1511735993011,5cyclictest131rcu_preempt09:14:373
1511735993010,9cyclictest131rcu_preempt12:05:223
1511731993024,4cyclictest1600353-21kworker/u8:3+events_unbound11:32:412
1511731993023,4cyclictest1530610-21unixbench_multi08:00:232
1511731993020,6cyclictest0-21swapper/208:50:002
1511731993017,4cyclictest131rcu_preempt08:55:242
151172699308,3cyclictest1545998-21sed08:45:231
1511726993023,4cyclictest1622989-21cron12:30:001
1511726993023,4cyclictest1601867-21apt-get11:30:011
1511726993020,6cyclictest0-21swapper/107:25:261
1511726993013,3cyclictest131rcu_preempt09:45:101
1511726993012,5cyclictest0-21swapper/112:00:101
1511722993024,3cyclictest0-21swapper/012:00:000
1511722993022,4cyclictest13850irq/36-mmc110:40:000
1511722993022,4cyclictest0-21swapper/008:10:240
1511735992923,4cyclictest1587607-21kworker/u8:0+events_unbound11:04:373
1511735992922,4cyclictest0-21swapper/307:15:253
1511735992921,4cyclictest0-21swapper/308:05:233
1511735992920,6cyclictest1527218-21grep07:50:243
151173599291,3cyclictest131rcu_preempt10:45:123
1511735992910,12cyclictest381rcuc/310:30:253
1511731992922,4cyclictest0-21swapper/210:04:312
1511731992921,4cyclictest0-21swapper/211:40:002
1511731992917,9cyclictest311ktimers/208:15:132
151172699299,5cyclictest131rcu_preempt09:35:221
1511726992922,5cyclictest1537893-21kworker/u8:0+events_unbound08:33:411
1511726992922,4cyclictest0-21swapper/110:00:011
1511726992921,4cyclictest0-21swapper/111:39:591
1511726992917,8cyclictest1595005-21basename11:10:001
1511722992921,5cyclictest0-21swapper/012:35:000
151173599287,15cyclictest0-21swapper/307:35:143
151173599287,15cyclictest0-21swapper/307:25:263
151173599286,12cyclictest40-21ksoftirqd/309:21:203
1511735992812,10cyclictest131rcu_preempt10:20:163
151173199288,5cyclictest131rcu_preempt11:45:112
1511731992823,3cyclictest1570653-21idleruntime-cro10:00:012
1511731992818,6cyclictest0-21swapper/208:15:012
151172699286,10cyclictest131rcu_preempt10:30:121
1511726992821,3cyclictest0-21swapper/109:40:241
1511726992820,6cyclictest1585870-21kworker/u8:1+events_unbound10:44:371
1511726992820,5cyclictest1527221-21unixbench_singl07:50:251
1511726992818,4cyclictest0-21swapper/108:20:161
1511726992813,4cyclictest1518723-21kworker/u8:3+events_unbound07:46:171
1511726992811,8cyclictest131rcu_preempt09:10:221
1511726992811,8cyclictest131rcu_preempt09:10:221
1511722992820,4cyclictest0-21swapper/009:50:240
1511722992819,5cyclictest1540251-21grep08:30:150
1511722992818,5cyclictest0-21swapper/007:50:240
1511722992815,10cyclictest121ktimers/008:25:130
151173599277,12cyclictest0-21swapper/309:30:213
151173599274,4cyclictest131rcu_preempt08:50:183
1511735992720,4cyclictest0-21swapper/311:05:253
1511735992719,4cyclictest0-21swapper/309:54:303
1511735992718,5cyclictest0-21swapper/312:19:593
151173599271,18cyclictest0-21swapper/310:06:253
1511731992718,5cyclictest0-21swapper/207:25:262
1511731992717,6cyclictest0-21swapper/208:50:222
1511731992716,5cyclictest1598151-21kworker/u8:1+events_unbound11:21:032
151172699276,12cyclictest24-21ksoftirqd/111:00:231
151172699275,3cyclictest131rcu_preempt11:45:001
1511726992720,3cyclictest0-21swapper/108:00:221
1511722992721,3cyclictest0-21swapper/007:35:010
1511722992720,3cyclictest0-21swapper/010:45:240
1511722992719,4cyclictest0-21swapper/012:29:400
151173599267,10cyclictest402711-21kworker/3:0-mm_percpu_wq09:45:153
1511735992619,3cyclictest0-21swapper/312:10:163
1511735992617,6cyclictest0-21swapper/311:40:243
151173599261,14cyclictest1622608-21users12:25:263
1511735992610,5cyclictest1563718-21kworker/u8:2+events_unbound09:42:383
1511731992620,4cyclictest1553519-21latency_hist09:10:002
1511731992620,4cyclictest1553519-21latency_hist09:10:002
151173199261,3cyclictest131rcu_preempt10:45:152
151173199261,12cyclictest0-21swapper/210:26:012
151173199261,12cyclictest0-21swapper/208:41:492
151172699269,4cyclictest221rcuc/112:15:231
151172699264,4cyclictest131rcu_preempt07:40:141
1511726992620,4cyclictest1551456-21kworker/u8:1+events_unbound09:02:191
1511726992613,4cyclictest1596405-21kworker/u8:3+events_unbound11:16:141
1511722992620,3cyclictest0-21swapper/009:25:270
1511722992619,4cyclictest1608897-21ls11:49:590
1511722992618,4cyclictest13550irq/42-30be0000.ethernet09:00:000
1511722992618,4cyclictest0-21swapper/007:15:000
1511722992618,4cyclictest0-21swapper/007:15:000
151173599257,10cyclictest40-21ksoftirqd/310:55:253
151173599256,9cyclictest131rcu_preempt10:50:163
151173599254,14cyclictest0-21swapper/312:35:153
151173599254,14cyclictest0-21swapper/312:35:153
151173599253,13cyclictest40-21ksoftirqd/311:46:363
1511735992518,5cyclictest1546911-21kworker/u8:2+events_unbound08:58:053
1511731992517,5cyclictest0-21swapper/210:05:282
1511731992517,5cyclictest0-21swapper/209:15:002
1511731992517,5cyclictest0-21swapper/209:14:592
1511731992516,3cyclictest131rcu_preempt10:10:162
1511731992510,9cyclictest131rcu_preempt12:30:462
1511731992510,9cyclictest131rcu_preempt11:30:002
151172699251,12cyclictest0-21swapper/109:30:241
1511722992517,5cyclictest0-21swapper/009:55:240
1511722992516,5cyclictest0-21swapper/008:45:150
1511722992515,7cyclictest1578123-21tune2fs10:20:150
1511722992514,7cyclictest1525937-21sh07:50:000
151172299251,20cyclictest0-21swapper/009:08:340
151172299251,20cyclictest0-21swapper/009:08:330
151172299251,20cyclictest0-21swapper/007:28:190
151173599247,9cyclictest131rcu_preempt07:45:543
1511735992414,7cyclictest1580159-21ntpq10:25:203
1511731992418,3cyclictest0-21swapper/212:00:152
1511731992414,7cyclictest1527989-21df_inode07:55:152
1511731992413,4cyclictest131rcu_preempt07:40:122
151172699246,10cyclictest24-21ksoftirqd/110:00:141
151172699245,11cyclictest0-21swapper/110:06:001
1511726992417,5cyclictest1596398-21kworker/u8:0+events_unbound11:30:021
151172699241,11cyclictest0-21swapper/110:38:301
1511722992419,3cyclictest1514824-21processes07:15:230
1511722992418,3cyclictest0-21swapper/009:20:220
1511722992417,3cyclictest0-21swapper/012:37:440
1511722992417,3cyclictest0-21swapper/012:37:430
1511722992417,3cyclictest0-21swapper/011:15:190
151172299241,20cyclictest645-21runrttasks10:56:490
151172299241,19cyclictest0-21swapper/010:15:100
151172299241,19cyclictest0-21swapper/008:52:390
151172299241,19cyclictest0-21swapper/007:36:200
1511735992313,6cyclictest1562505-21grep09:35:153
1511731992317,3cyclictest0-21swapper/209:50:152
1511731992317,3cyclictest0-21swapper/209:05:002
151173199231,6cyclictest1514907-21grep07:15:232
151172699236,8cyclictest131rcu_preempt07:35:241
151172699232,2cyclictest0-21swapper/109:50:111
1511722992319,2cyclictest13550irq/42-30be0000.ethernet11:50:100
1511722992317,4cyclictest0-21swapper/012:18:340
1511722992317,3cyclictest0-21swapper/008:40:200
1511722992317,2cyclictest0-21swapper/011:33:130
1511722992317,2cyclictest0-21swapper/010:00:130
1511722992316,3cyclictest0-21swapper/012:08:040
1511722992316,3cyclictest0-21swapper/010:05:030
1511722992314,5cyclictest0-21swapper/010:29:070
151172299231,20cyclictest0-21swapper/011:00:200
151172299231,20cyclictest0-21swapper/007:24:140
151172299231,18cyclictest0-21swapper/010:53:010
151172299231,18cyclictest0-21swapper/010:42:230
151172299231,18cyclictest0-21swapper/007:43:480
151172299230,19cyclictest0-21swapper/011:23:110
1511731992213,6cyclictest1621957-21cat12:25:182
1511726992213,6cyclictest221rcuc/110:45:121
1511722992215,3cyclictest0-21swapper/011:11:020
151172299221,3cyclictest0-21swapper/012:23:540
1511722992213,6cyclictest0-21swapper/008:25:010
151172299221,19cyclictest0-21swapper/009:40:130
1511726992115,3cyclictest1557392-21fschecks_time09:20:161
1511722992116,3cyclictest13550irq/42-30be0000.ethernet09:30:160
1511722992115,4cyclictest15657332chrt09:45:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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