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2026-04-18 - 11:21

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 Sat Apr 18, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2856504995931,4cyclictest2907104-21idleruntime-cro21:34:593
2856498995850,5cyclictest2961260-21kworker/u8:0+events_unbound00:33:522
2856498995850,5cyclictest2961260-21kworker/u8:0+events_unbound00:33:522
2856489995020,27cyclictest0-21swapper/022:10:000
2856489994939,6cyclictest2939710-21grep23:05:270
2856489994924,20cyclictest0-21swapper/022:05:000
2856489994824,21cyclictest0-21swapper/023:40:120
2856489994817,3cyclictest0-21swapper/000:05:000
2856489994817,3cyclictest0-21swapper/000:05:000
2856489994722,3cyclictest0-21swapper/020:00:010
2856489994714,5cyclictest0-21swapper/020:10:010
285648999471,3cyclictest2901082-21ntp_states21:15:220
2856489994523,19cyclictest2964022-21unixbench_singl00:15:270
2856489994513,6cyclictest0-21swapper/000:14:590
2856489994334,6cyclictest2925831-21grep22:25:250
2856504994231,7cyclictest2957404-21grep23:59:593
2856504994231,7cyclictest2957404-21grep00:00:003
2856498994229,9cyclictest2903250-21grep21:20:252
2856504994130,7cyclictest2913508-21grep21:50:253
2856498994133,5cyclictest2919248-21sh22:10:012
2856494994132,5cyclictest2904935-21unixbench_multi21:25:251
2856489994119,4cyclictest0-21swapper/020:10:240
2856489994032,4cyclictest0-21swapper/023:00:000
2856489994032,4cyclictest0-21swapper/022:59:590
2856504993928,7cyclictest2889828-21sh20:45:003
285649899391,34cyclictest2962738-21cut00:15:002
2856494993932,5cyclictest2875892-21kworker/u8:3+events_unbound20:05:451
2856489993929,6cyclictest0-21swapper/021:35:260
2856489993929,6cyclictest0-21swapper/021:35:260
2856498993818,7cyclictest2875892-21kworker/u8:3+events_unbound20:41:102
2856504993729,4cyclictest2940143-21munin-plugin-st23:10:003
2856494993729,4cyclictest0-21swapper/100:08:281
2856494993728,4cyclictest0-21swapper/120:25:141
2856494993726,6cyclictest0-21swapper/122:55:001
2856489993728,4cyclictest0-21swapper/023:54:590
2856489993725,7cyclictest0-21swapper/020:40:150
2856504993628,5cyclictest2950355-21cron23:40:013
2856504993626,6cyclictest0-21swapper/323:05:003
2856504993624,9cyclictest2901035-21kworker/u8:3+events_unbound22:25:123
2856498993618,5cyclictest2891161-21kworker/u8:2+events_unbound21:19:102
285649899361,5cyclictest131rcu_preempt20:30:132
2856494993621,4cyclictest2917138-21kworker/u8:0+events_unbound22:03:531
2856494993616,7cyclictest131rcu_preempt00:10:101
2856489993625,7cyclictest0-21swapper/000:30:260
2856489993625,7cyclictest0-21swapper/000:30:250
2856489993623,5cyclictest28836492cat20:25:170
2856498993518,5cyclictest2953455-21kworker/u8:0+events_unbound23:57:472
2856498993518,5cyclictest2953455-21kworker/u8:0+events_unbound23:57:462
2856494993529,4cyclictest2891161-21kworker/u8:2+events_unbound21:00:541
2856494993526,4cyclictest0-21swapper/121:40:001
2856494993526,4cyclictest0-21swapper/121:39:591
2856494993526,4cyclictest0-21swapper/100:29:591
2856494993522,9cyclictest2936292-21grep22:55:261
2856494993522,9cyclictest2936292-21grep22:55:261
2856489993526,6cyclictest0-21swapper/022:15:010
2856504993427,4cyclictest0-21swapper/322:15:263
2856504993426,4cyclictest0-21swapper/323:40:223
2856504993426,4cyclictest0-21swapper/319:55:013
2856498993417,4cyclictest2939943-21kworker/u8:2+events_unbound23:12:132
2856494993424,5cyclictest0-21swapper/119:55:161
2856494993422,7cyclictest0-21swapper/100:15:271
2856489993423,6cyclictest0-21swapper/022:55:000
2856498993324,5cyclictest0-21swapper/221:55:242
2856498993324,5cyclictest0-21swapper/221:55:242
2856498993320,5cyclictest2870710-21kworker/u8:0+events_unbound20:22:312
2856498993314,5cyclictest2901035-21kworker/u8:3+events_unbound21:49:512
2856494993327,4cyclictest2875892-21kworker/u8:3+events_unbound20:30:461
2856494993324,6cyclictest0-21swapper/119:55:011
2856494993323,6cyclictest0-21swapper/123:35:011
2856494993323,6cyclictest0-21swapper/123:00:161
2856494993319,10cyclictest231ktimers/123:55:121
2856494993319,10cyclictest231ktimers/123:55:121
2856489993324,6cyclictest2898387-21latency_hist21:10:010
2856489993323,6cyclictest0-21swapper/019:50:010
2856489993321,8cyclictest2956731-21runrttasks23:55:240
2856489993321,8cyclictest2956731-21runrttasks23:55:240
2856489993320,10cyclictest121ktimers/022:40:130
285648999330,30cyclictest0-21swapper/019:15:120
2856504993225,4cyclictest0-21swapper/323:25:233
2856504993223,5cyclictest0-21swapper/319:15:163
2856504993220,8cyclictest2894514-21grep20:55:253
2856498993225,3cyclictest0-21swapper/200:25:172
2856498993224,4cyclictest0-21swapper/222:30:252
2856498993224,4cyclictest0-21swapper/221:05:142
2856498993224,4cyclictest0-21swapper/220:55:152
2856498993224,4cyclictest0-21swapper/219:10:252
2856498993222,6cyclictest0-21swapper/200:40:002
2856498993222,6cyclictest0-21swapper/200:39:592
2856494993226,3cyclictest0-21swapper/122:45:231
2856494993224,4cyclictest0-21swapper/121:00:001
2856489993222,6cyclictest0-21swapper/021:25:010
2856489993222,6cyclictest0-21swapper/019:10:240
2856489993222,6cyclictest0-21swapper/000:05:230
2856504993125,4cyclictest145-21jbd2/mmcblk1p2-821:41:063
2856504993125,4cyclictest145-21jbd2/mmcblk1p2-821:41:063
2856504993123,4cyclictest0-21swapper/323:50:243
2856504993123,4cyclictest0-21swapper/320:30:263
2856504993123,4cyclictest0-21swapper/320:05:253
2856504993119,9cyclictest2901973-21cron21:20:013
2856504993117,10cyclictest391ktimers/322:30:113
2856498993125,4cyclictest2875892-21kworker/u8:3+events_unbound20:47:422
2856498993125,4cyclictest2875892-21kworker/u8:3+events_unbound20:47:412
2856498993124,5cyclictest2892979-21kworker/u8:0+events_unbound21:04:282
2856498993123,6cyclictest2863658-21kworker/u8:1+events_unbound19:40:392
2856498993122,5cyclictest2854221-21kworker/u8:3+events_unbound19:25:362
2856498993111,6cyclictest131rcu_preempt22:35:122
2856494993125,4cyclictest2908452-21kworker/u8:1+events_unbound21:56:081
2856494993125,4cyclictest2908452-21kworker/u8:1+events_unbound21:56:071
2856494993124,4cyclictest0-21swapper/120:20:261
2856494993123,5cyclictest2862334-21sh19:25:011
2856494993122,4cyclictest0-21swapper/121:41:051
2856494993122,4cyclictest0-21swapper/121:41:041
2856494993121,6cyclictest0-21swapper/120:15:011
2856494993120,6cyclictest0-21swapper/123:19:591
2856489993122,5cyclictest0-21swapper/019:25:260
2856489993121,6cyclictest0-21swapper/021:55:240
2856489993121,6cyclictest0-21swapper/021:55:240
2856489993121,6cyclictest0-21swapper/020:45:250
2856489993121,6cyclictest0-21swapper/020:45:250
2856489993121,6cyclictest0-21swapper/000:35:250
2856489993121,6cyclictest0-21swapper/000:35:250
2856489993120,7cyclictest0-21swapper/021:45:250
2856504993021,6cyclictest2917397-21latency_hist22:05:003
2856498993024,4cyclictest2867179-21kworker/u8:2+events_unbound19:45:402
2856498993022,4cyclictest2880868-21grep20:15:252
285649899300,7cyclictest0-21swapper/220:35:122
2856494993022,4cyclictest0-21swapper/120:50:121
2856494993022,4cyclictest0-21swapper/120:50:121
2856494993020,6cyclictest0-21swapper/120:40:011
2856489993021,5cyclictest0-21swapper/021:00:160
2856504992922,4cyclictest0-21swapper/320:50:233
2856504992922,4cyclictest0-21swapper/320:50:233
2856504992921,4cyclictest0-21swapper/321:10:253
2856504992919,6cyclictest0-21swapper/322:05:243
2856498992923,3cyclictest0-21swapper/223:45:252
2856498992921,6cyclictest2936508-21kworker/u8:1+events_unbound23:20:162
2856498992921,5cyclictest0-21swapper/219:55:152
2856498992917,4cyclictest131rcu_preempt23:26:392
2856494992923,3cyclictest0-21swapper/123:20:151
2856494992920,6cyclictest2911792-21grep21:45:251
2856494992918,7cyclictest0-21swapper/121:30:251
285649499291,13cyclictest0-21swapper/119:47:221
2856489992921,4cyclictest0-21swapper/022:30:230
2856489992920,5cyclictest0-21swapper/020:20:260
2856489992919,6cyclictest0-21swapper/023:15:000
2856489992919,6cyclictest0-21swapper/020:59:590
2856489992916,9cyclictest204-21dbus-daemon00:23:370
2856504992822,3cyclictest0-21swapper/321:45:193
2856504992820,4cyclictest0-21swapper/321:05:253
2856504992820,4cyclictest0-21swapper/319:25:363
2856498992813,3cyclictest131rcu_preempt23:15:112
2856498992812,5cyclictest2939943-21kworker/u8:2+events_unbound23:35:042
2856494992820,6cyclictest2957020-21kworker/u8:1+events_unbound00:03:171
2856494992820,6cyclictest2957020-21kworker/u8:1+events_unbound00:03:161
2856494992820,4cyclictest0-21swapper/123:55:011
2856494992820,4cyclictest0-21swapper/123:25:241
2856494992819,5cyclictest0-21swapper/120:45:011
2856489992820,4cyclictest13850irq/36-mmc123:40:010
2856489992820,4cyclictest0-21swapper/020:05:010
2856489992819,5cyclictest0-21swapper/022:45:240
2856489992818,6cyclictest0-21swapper/023:25:250
2856489992818,6cyclictest0-21swapper/020:35:250
2856489992818,6cyclictest0-21swapper/019:40:250
2856504992719,5cyclictest0-21swapper/320:15:153
2856504992719,4cyclictest0-21swapper/322:35:153
2856498992720,4cyclictest0-21swapper/222:00:222
2856498992719,4cyclictest0-21swapper/219:40:012
2856498992718,6cyclictest2938847-21grep23:05:162
285649899271,12cyclictest2852344-21kworker/2:0-mm_percpu_wq21:29:232
285649499277,14cyclictest0-21swapper/123:35:171
2856494992721,3cyclictest0-21swapper/122:35:201
2856494992720,5cyclictest2959063-21kworker/u8:3+events_unbound00:33:091
2856494992720,5cyclictest2959063-21kworker/u8:3+events_unbound00:33:081
2856494992720,4cyclictest2898363-21cron21:10:011
2856494992720,4cyclictest0-21swapper/100:20:251
2856494992716,7cyclictest0-21swapper/120:20:011
2856489992721,3cyclictest2929687-21kthreadd22:40:010
2856489992719,4cyclictest0-21swapper/019:35:010
2856504992619,4cyclictest0-21swapper/321:35:263
2856504992619,4cyclictest0-21swapper/321:35:263
2856504992619,3cyclictest0-21swapper/300:10:233
2856504992618,5cyclictest0-21swapper/323:10:253
2856504992618,4cyclictest0-21swapper/320:35:263
2856504992617,5cyclictest0-21swapper/322:10:243
2856504992617,5cyclictest0-21swapper/300:35:253
2856504992617,5cyclictest0-21swapper/300:35:243
2856504992615,7cyclictest2903276-21grep21:20:253
2856504992615,7cyclictest2865750-21munin-run19:35:013
285649899267,10cyclictest0-21swapper/200:20:222
2856498992620,3cyclictest0-21swapper/222:15:252
2856498992619,5cyclictest2939943-21kworker/u8:2+events_unbound23:40:362
2856498992619,5cyclictest2908452-21kworker/u8:1+events_unbound21:40:122
2856498992619,5cyclictest2908452-21kworker/u8:1+events_unbound21:40:122
2856498992617,6cyclictest0-21swapper/221:30:242
2856494992619,4cyclictest2934759-21kworker/u8:0+events_unbound23:10:241
2856494992618,4cyclictest0-21swapper/123:40:151
2856494992618,4cyclictest0-21swapper/121:50:161
2856494992618,4cyclictest0-21swapper/119:40:161
2856489992619,3cyclictest0-21swapper/023:00:160
2856489992618,5cyclictest0-21swapper/020:15:150
2856489992616,6cyclictest2921479-21ls22:15:130
2856489992616,6cyclictest0-21swapper/022:20:240
285650499252,8cyclictest2931394-21cron22:45:013
2856504992518,5cyclictest145-21jbd2/mmcblk1p2-819:10:053
2856504992517,5cyclictest0-21swapper/300:00:163
2856504992517,5cyclictest0-21swapper/300:00:163
285649899259,5cyclictest2939943-21kworker/u8:2+events_unbound23:30:512
285649899256,7cyclictest131rcu_preempt19:50:112
2856498992519,4cyclictest2917138-21kworker/u8:0+events_unbound22:41:412
2856498992518,5cyclictest53-21kcompactd000:05:032
2856498992518,5cyclictest2934332-21sort22:50:232
2856498992518,5cyclictest2856833-21kworker/u8:4+events_unbound19:15:152
2856498992517,5cyclictest0-21swapper/223:00:222
2856498992517,5cyclictest0-21swapper/221:50:242
2856498992517,4cyclictest0-21swapper/219:20:232
2856498992516,7cyclictest2961260-21kworker/u8:0+events_unbound00:16:032
2856498992516,6cyclictest2931815-21grep22:45:152
2856494992518,4cyclictest0-21swapper/119:40:011
2856494992516,7cyclictest2924926-21kworker/u8:1+events_unbound22:43:581
2856494992514,3cyclictest131rcu_preempt19:32:301
2856489992519,2cyclictest0-21swapper/023:34:570
2856504992416,4cyclictest0-21swapper/321:55:243
2856504992416,4cyclictest0-21swapper/321:55:243
2856504992416,4cyclictest0-21swapper/320:10:153
2856504992416,4cyclictest0-21swapper/319:45:243
285650499241,3cyclictest28836492cat20:25:173
285649899242,3cyclictest131rcu_preempt20:25:112
2856498992417,4cyclictest2954550-21ntpq23:50:192
2856498992417,4cyclictest2875892-21kworker/u8:3+events_unbound20:06:482
285649899241,12cyclictest0-21swapper/220:12:012
2856494992418,4cyclictest2854221-21kworker/u8:3+events_unbound19:26:411
2856494992417,5cyclictest2917138-21kworker/u8:0+events_unbound22:15:501
2856489992420,2cyclictest13550irq/42-30be0000.ethernet00:25:130
285648999241,8cyclictest2886410-21sh20:35:010
2856489992418,3cyclictest0-21swapper/021:50:160
2856489992416,5cyclictest2910733-1kworker/0:1H+mmc_complete23:50:010
285648999241,19cyclictest0-21swapper/019:22:530
2856504992317,3cyclictest0-21swapper/323:45:253
2856504992317,3cyclictest0-21swapper/321:00:153
2856504992316,4cyclictest2882275-21mailstats20:20:243
2856504992316,4cyclictest0-21swapper/322:55:263
2856504992316,4cyclictest0-21swapper/322:55:253
2856504992315,5cyclictest2874484-21cut20:00:013
2856504992315,5cyclictest0-21swapper/322:50:013
2856504992315,5cyclictest0-21swapper/319:35:253
2856504992314,6cyclictest0-21swapper/320:00:163
2856504992312,8cyclictest2969564-21basename00:35:003
2856504992312,8cyclictest2969564-21basename00:34:593
2856498992317,3cyclictest0-21swapper/219:35:012
2856498992316,5cyclictest2898283-21kworker/u8:1+events_unbound21:13:022
2856498992313,6cyclictest0-21swapper/220:50:182
2856498992313,6cyclictest0-21swapper/220:50:182
285649899231,12cyclictest32-21ksoftirqd/200:03:032
285649899231,12cyclictest32-21ksoftirqd/200:03:032
285649899231,12cyclictest0-21swapper/220:02:172
285649499236,6cyclictest24-21ksoftirqd/123:05:251
2856494992317,3cyclictest0-21swapper/120:00:241
2856494992315,5cyclictest0-21swapper/122:30:241
2856494992310,6cyclictest24-21ksoftirqd/121:15:251
2856489992316,3cyclictest0-21swapper/021:44:540
2856489992316,3cyclictest0-21swapper/021:44:530
2856489992315,5cyclictest0-21swapper/020:55:000
2856489992315,5cyclictest0-21swapper/020:55:000
2856489992314,6cyclictest2867457-21sendmail19:40:010
2856489992313,7cyclictest2907063-21seq21:34:430
285648999231,18cyclictest0-21swapper/023:16:540
285648999231,18cyclictest0-21swapper/021:12:580
2856504992217,3cyclictest0-21swapper/319:45:003
2856504992216,3cyclictest0-21swapper/323:30:213
2856504992216,3cyclictest0-21swapper/321:25:173
2856504992216,3cyclictest0-21swapper/300:05:243
2856504992215,4cyclictest2964006-21grep00:15:263
2856504992214,4cyclictest0-21swapper/300:23:373
2856504992212,7cyclictest2890295-21tune2fs20:45:163
2856504992212,7cyclictest2890295-21tune2fs20:45:163
2856498992216,4cyclictest2901035-21kworker/u8:3+events_unbound21:35:592
2856498992216,4cyclictest2901035-21kworker/u8:3+events_unbound21:35:582
2856498992215,5cyclictest29248152sleep222:25:122
2856498992214,4cyclictest0-21swapper/222:55:262
2856498992214,4cyclictest0-21swapper/222:55:262
285649899221,3cyclictest131rcu_preempt22:10:132
2856498992211,4cyclictest2917138-21kworker/u8:0+events_unbound22:21:132
285649499229,6cyclictest24-21ksoftirqd/121:10:121
2856494992218,2cyclictest0-21swapper/100:35:121
2856494992218,2cyclictest0-21swapper/100:35:121
2856494992217,3cyclictest2921386-21kworker/u8:4-writeback22:20:151
2856494992216,3cyclictest0-21swapper/121:20:181
2856494992216,3cyclictest0-21swapper/119:15:011
2856494992215,5cyclictest2953455-21kworker/u8:0+events_unbound23:46:341
2856494992214,5cyclictest0-21swapper/122:15:011
285649499221,10cyclictest0-21swapper/119:15:031
285649499220,3cyclictest131rcu_preempt22:25:221
2856489992216,4cyclictest28724542sleep019:51:140
2856489992215,4cyclictest0-21swapper/023:20:220
2856504992111,7cyclictest2860920-21cpuspeed19:20:133
2856494992115,3cyclictest0-21swapper/120:45:241
2856494992115,3cyclictest0-21swapper/120:45:241
2856504992015,3cyclictest2966380-21/usr/sbin/munin00:25:203
2856504992014,3cyclictest0-21swapper/322:50:223
285648999200,18cyclictest0-21swapper/021:27:240
2856504991912,4cyclictest0-21swapper/323:15:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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