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2026-08-19 - 07:20

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack1slot6s.osadl.org (updated Wed Aug 19, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206672980,4sleep1201ktimersoftd/121:21:031
1003998616,25cyclictest107550irq/46-eth023:01:212
1003998616,25cyclictest107550irq/46-eth023:01:212
146982840,4sleep2281ktimersoftd/222:00:552
1003997929,42cyclictest1227-21runrttasks20:50:032
1003997725,44cyclictest26436-21unixbench-2d21:28:202
1003997724,34cyclictest18267-21gltestperf20:28:112
1003997722,33cyclictest26876-21ssh23:08:042
1003997716,36cyclictest0-21swapper/219:03:252
1003997629,27cyclictest22345-21yum-updatesd-he18:34:322
1003997624,31cyclictest30744-21ssh19:58:112
1003997622,37cyclictest8519-21rm21:52:302
1003997618,51cyclictest3724-21ssh20:07:182
1003997518,35cyclictest0-21swapper/220:54:442
1003997518,35cyclictest0-21swapper/220:54:442
1003997516,36cyclictest0-21swapper/222:19:222
1003997516,36cyclictest0-21swapper/222:19:222
1003997516,36cyclictest0-21swapper/222:12:582
1003997514,36cyclictest0-21swapper/220:18:252
1003997425,39cyclictest6186-21ssh20:08:542
1003997425,27cyclictest1227-21runrttasks22:11:172
1003997421,31cyclictest0-21swapper/221:43:132
1003997324,27cyclictest15073-21ssh21:13:012
1003997323,32cyclictest1227-21runrttasks19:53:032
1003997322,32cyclictest0-21swapper/223:03:062
1003997322,32cyclictest0-21swapper/223:03:062
1003997318,34cyclictest0-21swapper/219:34:332
1003997226,39cyclictest8328-21cut20:13:082
1003997226,39cyclictest8328-21cut20:13:082
1003997222,28cyclictest26169-21diskmemload22:28:132
1003997220,32cyclictest10554-21ssh21:05:102
1003997219,34cyclictest0-21swapper/222:39:282
1003997218,35cyclictest0-21swapper/222:03:082
1003997218,33cyclictest0-21swapper/221:08:002
1003997215,35cyclictest0-21swapper/221:18:022
1003997214,48cyclictest0-21swapper/220:37:062
1003997125,38cyclictest29599-21ssh21:33:202
1003997119,31cyclictest0-21swapper/222:52:132
1003997115,34cyclictest0-21swapper/223:12:542
1003997022,29cyclictest1124-21snmpd20:47:152
1003997017,46cyclictest20434-21needreboot19:38:172
1003996926,29cyclictest7952-21sa121:02:482
1003996924,37cyclictest0-21swapper/221:22:592
1003996922,30cyclictest12502-21ssh22:47:382
1003996920,41cyclictest0-21swapper/218:04:582
1003996819,42cyclictest0-21swapper/222:23:052
1003996818,42cyclictest852-21ssh21:38:592
1003996818,42cyclictest852-21ssh21:38:592
1003996816,44cyclictest0-21swapper/223:22:142
1003996816,33cyclictest0-21swapper/218:43:052
1003996719,41cyclictest0-21swapper/220:23:542
1003996715,45cyclictest0-21swapper/222:32:582
219499660,8rtkit-daemon0-21swapper/220:41:190
1003996620,38cyclictest0-21swapper/218:18:082
1003996617,41cyclictest0-21swapper/221:53:512
1003996617,34cyclictest0-21swapper/220:42:492
1003996522,26cyclictest23787-21munin-run19:47:512
1003996518,30cyclictest0-21swapper/218:13:142
1003996423,24cyclictest16102-21aten_r1power_cu22:52:562
1003996421,26cyclictest5916-21munin-run18:02:542
1003996320,28cyclictest7108-1kworker/2:0H18:23:242
1003996319,36cyclictest2289-21munin-run19:02:522
1003996319,36cyclictest18233-21telnet18:28:082
1003996318,37cyclictest0-21swapper/219:08:092
1003996313,42cyclictest0-21swapper/218:12:552
1003996313,42cyclictest0-21swapper/218:12:552
1003996218,30cyclictest0-21swapper/217:53:102
219499610,6rtkit-daemon0-21swapper/220:35:043
1003996112,33cyclictest0-21swapper/219:18:052
99799604,50cyclictest0-21swapper/021:33:060
100399609,34cyclictest0-21swapper/219:23:062
1003996018,34cyclictest22850-21munin-node18:38:252
1003996018,28cyclictest2186-1kworker/2:2H19:48:112
99799594,48cyclictest0-21swapper/022:58:080
99799594,48cyclictest0-21swapper/022:58:080
99799593,50cyclictest41ktimersoftd/022:43:030
62572593,12sleep00-21swapper/021:48:040
100399599,31cyclictest0-21swapper/219:13:032
100099593,48cyclictest0-21swapper/120:06:251
24392583,47sleep32547-21smartctl20:53:093
24392583,47sleep32547-21smartctl20:53:093
219499580,4rtkit-daemon2193-21rtkit-daemon20:02:430
99799574,46cyclictest0-21swapper/021:19:090
283682574,12sleep30-21swapper/320:43:133
1003995726,23cyclictest28780-21wc18:48:222
1003995717,32cyclictest0-21swapper/218:53:272
1003995717,32cyclictest0-21swapper/218:53:272
99799564,46cyclictest0-21swapper/022:48:240
99799564,46cyclictest0-21swapper/021:40:550
99799564,46cyclictest0-21swapper/021:40:550
99799564,45cyclictest13055-21rm21:58:060
99799564,45cyclictest0-21swapper/022:26:270
99799563,43cyclictest0-21swapper/022:07:450
318452562,9sleep10-21swapper/123:16:131
29612563,7sleep32966-21ssh23:21:393
1004995611,22cyclictest1888-21crond21:42:463
1004995611,22cyclictest1888-21crond21:42:463
99799556,42cyclictest0-21swapper/023:12:590
99799555,43cyclictest0-21swapper/023:02:590
99799555,43cyclictest0-21swapper/023:02:590
99799554,45cyclictest0-21swapper/021:12:480
99799554,44cyclictest0-21swapper/022:28:180
99799553,45cyclictest0-21swapper/020:15:120
99799553,45cyclictest0-21swapper/020:15:120
99799552,47cyclictest0-21swapper/022:35:260
100499553,45cyclictest30594-21cut19:58:093
100099554,45cyclictest0-21swapper/120:58:031
1000995530,12cyclictest0-21swapper/123:01:481
1000995530,12cyclictest0-21swapper/123:01:481
1000995530,12cyclictest0-21swapper/121:31:201
1000995529,12cyclictest0-21swapper/120:53:011
1000995529,12cyclictest0-21swapper/120:53:011
99799546,12cyclictest14276-21aten_r1power_po20:23:010
99799544,44cyclictest0-21swapper/019:54:140
99799544,43cyclictest1930-21grep23:18:160
99799543,45cyclictest0-21swapper/021:53:130
99799543,44cyclictest26000-21cut22:18:030
99799543,44cyclictest26000-21cut22:18:030
314842544,13sleep30-21swapper/320:48:093
312982543,9sleep00-21swapper/018:53:230
312982543,9sleep00-21swapper/018:53:230
219499540,4rtkit-daemon2193-21rtkit-daemon18:18:250
187872543,9sleep00-21swapper/019:35:150
170192543,11sleep00-21swapper/022:53:060
100499545,31cyclictest0-21swapper/320:58:213
1004995438,10cyclictest26201-21gltestperf22:18:043
1004995438,10cyclictest26201-21gltestperf22:18:043
100499542,36cyclictest0-21swapper/321:18:243
1004995416,21cyclictest12-21rcu_preempt22:31:433
1003995424,24cyclictest16059-21timerwakeupswit19:28:232
99799534,44cyclictest0-21swapper/021:13:080
99799534,43cyclictest0-21swapper/022:39:520
99799533,43cyclictest0-21swapper/020:28:090
39492533,43sleep00-21swapper/019:03:220
139812533,9sleep00-21swapper/019:24:510
100499534,33cyclictest0-21swapper/320:23:503
100499534,31cyclictest0-21swapper/321:28:093
100499533,44cyclictest0-21swapper/320:38:033
1003995331,15cyclictest0-21swapper/217:52:552
1000995328,12cyclictest0-21swapper/122:49:431
1000995324,12cyclictest0-21swapper/121:08:131
99799524,43cyclictest0-21swapper/022:09:080
99799524,16cyclictest0-21swapper/021:23:190
93562523,9sleep00-21swapper/019:16:440
285442523,41sleep00-21swapper/018:48:190
241152523,10sleep30-21swapper/321:26:393
134202522,10sleep30-21swapper/321:08:333
119662524,40sleep30-21swapper/318:13:203
100499527,29cyclictest0-21swapper/320:29:483
100499524,30cyclictest0-21swapper/323:03:033
100499524,30cyclictest0-21swapper/323:03:033
100499524,28cyclictest0-21swapper/322:14:323
100499524,25cyclictest0-21swapper/321:57:583
100499524,25cyclictest0-21swapper/321:48:313
1004995221,12cyclictest0-21swapper/322:53:153
100099523,41cyclictest0-21swapper/122:43:171
99799519,37cyclictest0-21swapper/020:47:460
99799514,42cyclictest0-21swapper/020:48:350
99799514,42cyclictest0-21swapper/018:01:490
99799514,41cyclictest0-21swapper/020:58:050
997995110,25cyclictest0-21swapper/020:33:080
80532512,42sleep10-21swapper/121:50:431
34472512,9sleep30-21swapper/317:57:083
199402513,9sleep00-21swapper/018:29:170
147062513,40sleep00-21swapper/019:28:050
100499514,30cyclictest0-21swapper/322:03:033
100499514,27cyclictest0-21swapper/318:28:303
99799505,27cyclictest0-21swapper/018:17:550
99799505,13cyclictest0-21swapper/021:29:500
99799503,43cyclictest0-21swapper/021:44:500
997995018,26cyclictest3909-21kworker/0:020:10:350
40352503,41sleep00-21swapper/020:55:280
40352503,41sleep00-21swapper/020:55:280
307352502,9sleep30-21swapper/322:24:233
288172502,9sleep30-21swapper/323:12:123
233922503,41sleep00-21swapper/018:38:120
105512502,9sleep30-21swapper/320:17:423
105512502,9sleep30-21swapper/320:17:423
100499505,26cyclictest0-21swapper/323:16:233
100499504,29cyclictest0-21swapper/318:03:083
100499504,28cyclictest0-21swapper/319:23:233
100499504,28cyclictest0-21swapper/319:08:103
100499504,27cyclictest0-21swapper/322:42:563
100499504,27cyclictest0-21swapper/322:34:263
100499504,27cyclictest0-21swapper/320:09:583
100499504,26cyclictest0-21swapper/322:10:003
100499504,25cyclictest0-21swapper/319:19:303
1004995029,13cyclictest0-21swapper/317:58:103
1004995019,12cyclictest0-21swapper/321:03:163
100099504,40cyclictest0-21swapper/122:35:521
100099504,39cyclictest0-21swapper/119:55:151
1000995035,9cyclictest17223-21unixbench_multi22:03:171
100099503,41cyclictest0-21swapper/123:07:151
100099503,41cyclictest0-21swapper/123:07:151
1000995029,10cyclictest0-21swapper/120:43:021
1000995026,11cyclictest0-21swapper/120:38:111
100099502,39cyclictest0-21swapper/120:12:551
100099502,39cyclictest0-21swapper/120:12:551
99799494,28cyclictest0-21swapper/017:57:550
99799494,27cyclictest0-21swapper/020:03:050
99799493,37cyclictest0-21swapper/022:12:550
5822494,6sleep00-21swapper/017:48:230
56742492,9sleep10-21swapper/117:59:561
283842493,39sleep00-21swapper/023:10:320
258632492,42sleep10-21swapper/119:49:021
249622492,41sleep10-21swapper/118:42:321
240102493,39sleep00-21swapper/019:48:000
201022493,9sleep10-21swapper/118:31:231
175162493,40sleep00-21swapper/018:23:450
168032492,9sleep10-21swapper/121:13:551
104362492,9sleep10-21swapper/121:04:441
100499499,22cyclictest0-21swapper/322:48:083
100499495,26cyclictest0-21swapper/321:53:033
100499494,28cyclictest0-21swapper/321:43:063
100499494,28cyclictest0-21swapper/321:33:213
100499494,27cyclictest0-21swapper/321:13:033
100499494,27cyclictest0-21swapper/319:43:073
100499494,27cyclictest0-21swapper/319:38:253
100499494,27cyclictest0-21swapper/318:58:173
100499494,26cyclictest0-21swapper/319:13:163
100499494,26cyclictest0-21swapper/318:54:173
100499494,26cyclictest0-21swapper/318:54:173
1004994933,10cyclictest14163-21cut18:18:143
100499493,32cyclictest0-21swapper/318:23:093
100499493,28cyclictest0-21swapper/318:48:253
100499493,25cyclictest0-21swapper/322:39:253
100499493,15cyclictest0-21swapper/323:01:033
100499493,15cyclictest0-21swapper/323:01:033
1004994918,13cyclictest0-21swapper/320:22:493
100099494,39cyclictest0-21swapper/121:53:171
100099493,40cyclictest0-21swapper/121:43:091
100099493,39cyclictest0-21swapper/120:18:131
100099493,12cyclictest0-21swapper/121:33:141
1000994929,7cyclictest57-21kswapd022:40:011
99799484,38cyclictest0-21swapper/020:18:200
272082483,9sleep00-21swapper/018:45:250
235712482,9sleep10-21swapper/120:37:111
118002482,39sleep10-21swapper/119:22:341
116572483,40sleep00-21swapper/019:20:390
100499484,27cyclictest0-21swapper/319:53:113
100499484,27cyclictest0-21swapper/319:28:143
100499484,27cyclictest0-21swapper/318:33:293
100499484,24cyclictest0-21swapper/320:06:103
100499483,27cyclictest0-21swapper/318:43:273
100099484,39cyclictest0-21swapper/122:08:201
100099484,36cyclictest0-21swapper/117:57:551
100099484,12cyclictest0-21swapper/123:08:171
1000994832,10cyclictest18043-21head19:33:161
100099482,12cyclictest30162-21switchtime22:23:151
99799475,27cyclictest0-21swapper/019:10:330
99799474,37cyclictest0-21swapper/021:03:030
295892472,39sleep10-21swapper/118:50:221
272262472,9sleep10-21swapper/118:45:381
226022472,9sleep10-21swapper/118:37:481
212742472,9sleep10-21swapper/119:41:361
19552473,38sleep00-21swapper/019:00:120
165642472,40sleep10-21swapper/119:32:251
106642473,10sleep00-21swapper/018:12:440
106642473,10sleep00-21swapper/018:12:440
100499474,26cyclictest0-21swapper/319:03:213
100499474,25cyclictest0-21swapper/319:34:283
1004994730,11cyclictest24556-21unixbench_multi18:38:283
100099474,38cyclictest0-21swapper/120:49:571
1000994730,10cyclictest32566-21head18:58:061
100099473,38cyclictest18253-21tune2fs20:28:101
100099473,38cyclictest0-21swapper/118:13:171
100099473,36cyclictest0-21swapper/122:17:571
100099473,36cyclictest0-21swapper/122:17:571
1000994717,26cyclictest0-21swapper/120:11:191
93402462,9sleep10-21swapper/119:16:331
236262462,37sleep10-21swapper/119:45:561
224202463,10sleep00-21swapper/018:35:260
105882462,37sleep10-21swapper/118:11:451
105882462,37sleep10-21swapper/118:11:451
1004994616,12cyclictest0-21swapper/318:08:223
1004994616,12cyclictest0-21swapper/318:08:223
100099464,37cyclictest0-21swapper/119:08:131
100099464,35cyclictest0-21swapper/121:57:571
100099464,35cyclictest0-21swapper/119:58:211
100099464,13cyclictest0-21swapper/121:41:101
100099464,13cyclictest0-21swapper/121:41:101
100099464,12cyclictest0-21swapper/122:53:191
100099463,38cyclictest0-21swapper/123:17:531
99799454,13cyclictest0-21swapper/018:03:310
141372452,9sleep10-21swapper/119:26:531
1004994531,8cyclictest24935-21cut19:48:113
100099455,11cyclictest0-21swapper/120:26:221
100099454,36cyclictest0-21swapper/118:22:491
100099454,34cyclictest0-21swapper/122:12:571
99799443,13cyclictest0-21swapper/019:38:040
45272442,35sleep10-21swapper/119:06:051
318712442,35sleep10-21swapper/122:27:521
100099444,34cyclictest0-21swapper/121:23:011
100099444,33cyclictest0-21swapper/118:03:131
100099443,35cyclictest0-21swapper/118:53:081
100099443,35cyclictest0-21swapper/118:53:081
99799435,23cyclictest0-21swapper/019:43:040
100099403,32cyclictest0-21swapper/118:23:081
1004993823,9cyclictest1051-21wc17:52:553
100099323,6cyclictest976-21latency_hist17:52:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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