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2026-04-13 - 03:22

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
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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 highest latencies:
System rack1slot6s.osadl.org (updated Mon Apr 13, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
258902930,5sleep041ktimersoftd/018:11:520
258902930,5sleep041ktimersoftd/018:11:520
243032870,2sleep041ktimersoftd/021:39:590
243032870,2sleep041ktimersoftd/021:39:590
258712710,4sleep226-21rcuc/222:30:282
3064499674,56cyclictest0-21swapper/021:21:220
86452633,51sleep10-21swapper/120:27:011
40312634,51sleep00-21swapper/021:09:370
30649996333,12cyclictest0-21swapper/121:01:031
48312623,52sleep00-21swapper/021:57:380
3065299604,11cyclictest0-21swapper/319:31:293
30644996022,8cyclictest31713-21missed_timers19:26:520
3064499602,52cyclictest0-21swapper/022:15:430
46142593,46sleep30-21swapper/317:26:583
46142593,46sleep30-21swapper/317:26:583
3065299583,39cyclictest0-21swapper/320:49:333
3065199585,26cyclictest0-21swapper/219:41:402
3065199583,34cyclictest0-21swapper/220:54:582
30651995826,25cyclictest1419-21runrttasks20:19:082
30651995813,27cyclictest0-21swapper/222:03:062
286962583,11sleep00-21swapper/020:56:590
3065199574,30cyclictest0-21swapper/219:46:402
3065199574,29cyclictest0-21swapper/221:07:122
3064999573,49cyclictest0-21swapper/121:52:401
281432573,10sleep00-21swapper/020:09:310
248599570,5rtkit-daemon2484-21rtkit-daemon20:45:033
248599570,3rtkit-daemon2484-21rtkit-daemon18:20:463
224872570,8sleep10-21swapper/118:06:411
3065299563,12cyclictest0-21swapper/320:54:303
3065199565,26cyclictest0-21swapper/219:20:202
3065199564,27cyclictest0-21swapper/217:26:332
3065199563,35cyclictest0-21swapper/220:46:362
30651995623,14cyclictest0-21swapper/220:01:422
30651995623,12cyclictest0-21swapper/220:26:492
30651995620,14cyclictest0-21swapper/220:37:162
305272563,46sleep00-21swapper/021:48:110
246082563,46sleep10-21swapper/121:41:061
246082563,46sleep10-21swapper/121:41:061
42632553,11sleep10-21swapper/118:36:291
317272553,45sleep00-21swapper/021:51:330
3065299553,45cyclictest0-21swapper/320:01:253
3065299553,11cyclictest0-21swapper/322:11:363
3065199555,28cyclictest0-21swapper/218:37:022
3065199555,27cyclictest0-21swapper/219:22:022
3065199555,27cyclictest0-21swapper/218:56:452
3065199555,27cyclictest0-21swapper/218:56:452
3065199555,26cyclictest0-21swapper/222:45:212
3065199555,25cyclictest20218-21diskstats22:21:362
3065199555,25cyclictest20218-21diskstats22:21:362
3065199554,34cyclictest0-21swapper/220:44:062
248599550,5rtkit-daemon2484-21rtkit-daemon22:01:003
248599550,5rtkit-daemon2484-21rtkit-daemon19:11:523
248599550,5rtkit-daemon2484-21rtkit-daemon17:16:493
248599550,4rtkit-daemon2484-21rtkit-daemon21:22:172
248599550,4rtkit-daemon2484-21rtkit-daemon21:01:022
198852555,9sleep120019-21unixbench_multi21:31:551
114182552,47sleep00-21swapper/022:07:010
85262543,44sleep10-21swapper/122:03:481
3065299549,13cyclictest0-21swapper/321:41:423
3065299544,31cyclictest0-21swapper/320:31:243
3065199545,27cyclictest0-21swapper/220:07:512
3065199545,25cyclictest0-21swapper/219:55:462
3065199544,29cyclictest0-21swapper/221:41:392
3065199544,28cyclictest0-21swapper/221:02:222
30651995421,14cyclictest0-21swapper/218:46:452
30651995421,13cyclictest0-21swapper/221:53:212
30651995420,13cyclictest0-21swapper/222:38:032
30651995419,23cyclictest0-21swapper/222:12:202
3064499544,43cyclictest0-21swapper/019:36:430
3064499544,43cyclictest0-21swapper/019:36:430
30644995436,13cyclictest0-21swapper/022:01:440
30644995434,14cyclictest0-21swapper/022:31:420
30644995433,15cyclictest0-21swapper/021:01:570
30644995425,13cyclictest0-21swapper/021:31:490
248599540,5rtkit-daemon2484-21rtkit-daemon22:01:373
248599540,5rtkit-daemon2484-21rtkit-daemon19:01:453
248599540,5rtkit-daemon2484-21rtkit-daemon18:56:523
248599540,5rtkit-daemon2484-21rtkit-daemon18:56:523
248599540,5rtkit-daemon2484-21rtkit-daemon18:36:533
319752533,44sleep331978-21ssh22:38:083
3065299535,12cyclictest0-21swapper/321:11:433
3065299534,12cyclictest0-21swapper/322:21:043
30652995337,9cyclictest9000-21sed17:36:503
30652995337,9cyclictest12235-21unixbench_multi17:42:043
3065199537,11cyclictest121850irq/46-eth021:11:572
3065199535,29cyclictest0-21swapper/221:35:382
3065199535,28cyclictest0-21swapper/221:16:382
3065199535,28cyclictest0-21swapper/218:33:272
3065199535,28cyclictest0-21swapper/218:06:502
3065199535,27cyclictest22415-21perl21:36:412
3065199535,27cyclictest22415-21perl21:36:412
3065199534,32cyclictest0-21swapper/217:36:312
3065199534,29cyclictest0-21swapper/219:28:362
3065199534,28cyclictest0-21swapper/222:01:042
3065199534,26cyclictest0-21swapper/219:13:342
30651995335,11cyclictest4269-21gltestperf20:21:442
3065199533,29cyclictest0-21swapper/221:47:122
30651995324,13cyclictest0-21swapper/220:11:432
30651995321,13cyclictest0-21swapper/222:06:432
30651995320,14cyclictest0-21swapper/219:37:362
30651995320,14cyclictest0-21swapper/219:37:362
30651995320,13cyclictest0-21swapper/219:56:422
30651995320,13cyclictest0-21swapper/217:28:152
30651995320,13cyclictest0-21swapper/217:28:152
30651995319,20cyclictest0-21swapper/222:31:322
30651995319,14cyclictest0-21swapper/219:31:312
3064499536,14cyclictest0-21swapper/022:36:330
3064499535,41cyclictest0-21swapper/020:16:570
3064499535,12cyclictest0-21swapper/022:26:560
30644995335,12cyclictest0-21swapper/020:41:380
30644995334,13cyclictest0-21swapper/021:26:450
30644995319,12cyclictest0-21swapper/022:21:320
30644995319,12cyclictest0-21swapper/022:21:320
248599530,5rtkit-daemon2484-21rtkit-daemon22:16:442
248599530,5rtkit-daemon2484-21rtkit-daemon21:26:392
248599530,5rtkit-daemon2484-21rtkit-daemon20:06:423
248599530,5rtkit-daemon2484-21rtkit-daemon19:50:353
231172533,9sleep00-21swapper/019:13:030
104492534,9sleep10-21swapper/121:18:331
71782523,42sleep00-21swapper/018:41:440
322832523,43sleep332286-21ssh21:02:143
3065199525,29cyclictest0-21swapper/220:31:382
3065199525,28cyclictest0-21swapper/218:21:582
3065199525,27cyclictest0-21swapper/217:51:572
30651995221,13cyclictest0-21swapper/219:01:422
30651995221,12cyclictest0-21swapper/218:52:022
30651995220,13cyclictest0-21swapper/218:16:472
3064499524,42cyclictest0-21swapper/022:16:500
3064499524,42cyclictest0-21swapper/019:42:010
3064499524,41cyclictest0-21swapper/019:57:430
3064499523,42cyclictest27405-21grep19:21:420
30644995221,13cyclictest0-21swapper/019:53:010
260172522,10sleep10-21swapper/122:31:011
248599520,5rtkit-daemon2484-21rtkit-daemon18:47:003
248599520,5rtkit-daemon2484-21rtkit-daemon17:43:182
95882513,9sleep10-21swapper/122:06:341
30652995134,10cyclictest3000-21cut18:31:483
30652995117,27cyclictest17069-21sh21:28:073
3065199515,28cyclictest0-21swapper/218:41:422
3065199515,26cyclictest0-21swapper/218:11:552
3065199515,26cyclictest0-21swapper/218:11:552
3065199515,26cyclictest0-21swapper/218:03:222
3065199514,26cyclictest0-21swapper/218:26:452
30651995121,11cyclictest0-21swapper/217:36:452
30651995119,13cyclictest0-21swapper/217:57:002
3064999513,43cyclictest0-21swapper/121:08:151
3064999513,17cyclictest0-21swapper/120:14:251
30644995135,12cyclictest0-21swapper/021:41:420
30644995135,11cyclictest0-21swapper/019:46:470
30644995134,12cyclictest0-21swapper/020:47:300
30644995133,12cyclictest0-21swapper/020:31:570
30644995132,13cyclictest0-21swapper/021:11:240
3064499513,41cyclictest6655-21latency_hist18:41:290
30644995123,7cyclictest19832-21latency_hist18:01:310
291262513,42sleep10-21swapper/119:22:481
287372513,42sleep10-21swapper/122:33:391
248599510,5rtkit-daemon2484-21rtkit-daemon18:22:013
248599510,5rtkit-daemon2484-21rtkit-daemon17:46:472
248599510,5rtkit-daemon2484-21rtkit-daemon17:32:033
248599510,5rtkit-daemon2484-21rtkit-daemon17:15:043
248599510,4rtkit-daemon2484-21rtkit-daemon20:01:503
248599510,4rtkit-daemon2484-21rtkit-daemon19:51:433
231332512,43sleep10-21swapper/119:13:171
189562513,42sleep219059-21cpuspeed19:06:412
137972512,9sleep30-21swapper/318:56:223
100862513,9sleep00-21swapper/017:39:040
53702502,9sleep10-21swapper/120:22:261
325902502,42sleep10-21swapper/122:40:241
3065299504,27cyclictest0-21swapper/321:31:493
30652995022,12cyclictest0-21swapper/321:16:363
30652995019,14cyclictest0-21swapper/317:56:463
3065199504,27cyclictest0-21swapper/217:18:142
3064999504,41cyclictest0-21swapper/119:45:071
30649995032,13cyclictest0-21swapper/120:36:481
30649995025,12cyclictest0-21swapper/122:20:491
30649995017,8cyclictest24273-21fschecks_count20:51:411
30649995015,27cyclictest30669-21cut21:01:371
3064499505,38cyclictest0-21swapper/020:51:450
30644995035,8cyclictest1419-21runrttasks18:01:430
3064499503,42cyclictest4894-21kworker/0:221:22:380
30644995014,11cyclictest7834-21kernelversion20:26:480
248599500,5rtkit-daemon2484-21rtkit-daemon19:17:443
209392502,9sleep00-21swapper/019:10:460
196092502,9sleep10-21swapper/122:21:291
196092502,9sleep10-21swapper/122:21:291
12662502,10sleep10-21swapper/122:41:371
103702503,11sleep30-21swapper/319:42:013
77382493,41sleep00-21swapper/017:34:370
3065299494,26cyclictest0-21swapper/322:36:213
3065299493,40cyclictest0-21swapper/321:22:483
3065299493,27cyclictest0-21swapper/320:21:423
30652994920,14cyclictest0-21swapper/322:26:443
30652994920,14cyclictest0-21swapper/320:16:373
30649994931,12cyclictest0-21swapper/120:01:031
30649994925,11cyclictest0-21swapper/119:40:561
30649994925,11cyclictest0-21swapper/119:40:561
30649994925,11cyclictest0-21swapper/119:36:171
30649994923,12cyclictest0-21swapper/121:11:311
30649994917,27cyclictest16512-21ls21:26:551
3064499495,37cyclictest0-21swapper/020:37:070
30644994930,14cyclictest0-21swapper/022:41:240
3064499493,36cyclictest0-21swapper/019:31:480
30644994925,19cyclictest0-21swapper/020:23:230
30644994923,11cyclictest0-21swapper/019:18:370
30644994913,30cyclictest0-21swapper/020:11:560
259912493,10sleep10-21swapper/119:18:491
225792492,40sleep10-21swapper/120:48:421
173432492,9sleep00-21swapper/017:55:210
148212492,9sleep10-21swapper/122:12:061
57942483,9sleep10-21swapper/122:01:061
51782483,39sleep00-21swapper/017:27:200
51782483,39sleep00-21swapper/017:27:200
40122482,40sleep00-21swapper/018:33:140
31092482,39sleep30-21swapper/317:26:303
3065299483,28cyclictest0-21swapper/321:46:413
30652994820,12cyclictest0-21swapper/321:51:533
30652994819,12cyclictest0-21swapper/320:56:513
30652994818,14cyclictest0-21swapper/321:06:403
30652994817,13cyclictest0-21swapper/319:41:273
30652994817,13cyclictest0-21swapper/319:41:273
30652994812,23cyclictest27093-21telnet19:21:403
3064999483,39cyclictest0-21swapper/117:31:471
3064999483,37cyclictest0-21swapper/120:45:571
30649994829,14cyclictest0-21swapper/119:27:001
3064499483,37cyclictest0-21swapper/017:16:430
30644994828,14cyclictest0-21swapper/018:46:560
266802482,9sleep10-21swapper/118:12:231
266802482,9sleep10-21swapper/118:12:231
226592482,9sleep30-21swapper/322:26:073
226592482,9sleep30-21swapper/322:26:073
182662482,40sleep00-21swapper/019:02:150
16212482,39sleep00-21swapper/018:29:510
314682472,37sleep10-21swapper/118:22:301
3065299474,27cyclictest0-21swapper/319:26:423
30652994733,8cyclictest10395-21sort20:31:383
30652994731,10cyclictest29062-21aten_r1power_po20:11:373
30652994723,8cyclictest10737-21cat22:06:463
30652994723,10cyclictest1419-21runrttasks22:43:033
30652994717,14cyclictest0-21swapper/321:41:223
30652994717,14cyclictest0-21swapper/321:41:223
3064999477,34cyclictest0-21swapper/119:51:411
30649994726,11cyclictest0-21swapper/118:27:031
30649994726,10cyclictest0-21swapper/119:06:551
30649994723,12cyclictest0-21swapper/119:47:081
3064999472,14cyclictest0-21swapper/121:46:331
30649994710,32cyclictest24345-21sh20:03:001
3064499473,37cyclictest0-21swapper/017:46:550
291952472,39sleep10-21swapper/118:19:001
25382472,39sleep10-21swapper/120:19:231
242562473,38sleep00-21swapper/018:07:060
209022472,39sleep30-21swapper/319:10:163
105462473,37sleep00-21swapper/017:41:420
88272462,37sleep10-21swapper/118:43:461
314772462,39sleep00-21swapper/018:22:380
30652994631,10cyclictest16139-21tail17:51:523
30652994618,14cyclictest0-21swapper/318:01:593
3064999463,16cyclictest0-21swapper/120:32:031
3064499463,38cyclictest0-21swapper/020:03:530
158802462,38sleep00-21swapper/018:57:160
158802462,38sleep00-21swapper/018:57:160
125212463,9sleep10-21swapper/117:44:461
4032452,37sleep10-21swapper/117:19:431
3065299454,24cyclictest13494-21aten_r1power_cu20:36:353
3065299453,34cyclictest0-21swapper/318:26:403
30652994529,10cyclictest13644-21cut17:46:483
3064999453,38cyclictest0-21swapper/121:25:281
3064999453,37cyclictest0-21swapper/121:41:511
3064999453,37cyclictest0-21swapper/118:46:391
30649994514,8cyclictest8924-21gltestperf17:36:491
3064499454,14cyclictest0-21swapper/017:16:320
3064499453,37cyclictest0-21swapper/017:21:460
185302453,36sleep10-21swapper/119:05:431
173492452,9sleep10-21swapper/117:55:261
149642452,37sleep10-21swapper/117:50:301
7842443,9sleep10-21swapper/117:21:401
55282443,34sleep10-21swapper/118:36:531
54692442,36sleep10-21swapper/117:31:071
54692442,36sleep10-21swapper/117:31:071
30652994430,9cyclictest25169-21cpuspeed_turbos18:11:433
30652994430,9cyclictest25169-21cpuspeed_turbos18:11:433
3064999443,36cyclictest0-21swapper/118:51:391
3064999443,26cyclictest0-21swapper/120:06:441
30649994426,13cyclictest0-21swapper/118:56:511
30649994426,13cyclictest0-21swapper/118:56:511
3064499444,34cyclictest0-21swapper/018:51:540
3065299433,9cyclictest23271-21gltestperf18:06:493
30652994320,10cyclictest6983-21aten2.4-expect18:41:413
3064999433,23cyclictest22217-21sa118:06:301
30644994315,12cyclictest0-21swapper/018:16:430
248599430,5rtkit-daemon2484-21rtkit-daemon17:11:492
195432433,9sleep10-21swapper/117:57:521
3064999383,29cyclictest0-21swapper/117:16:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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