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2025-12-22 - 06:58

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 all highest latencies:
System rack1slot6s.osadl.org (updated Mon Dec 22, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
68699956,15cyclictest0-21swapper/019:01:420
686999433,10cyclictest8584-21tr19:16:570
68699914,38cyclictest0-21swapper/020:26:530
686999113,35cyclictest0-21swapper/020:12:120
686998722,8cyclictest505-21latency_hist23:31:320
686998636,10cyclictest0-21swapper/021:03:490
686998627,8cyclictest24718-21latency_hist19:51:410
686998532,16cyclictest0-21swapper/023:36:460
248599850,5rtkit-daemon2484-21rtkit-daemon21:16:532
248599850,4rtkit-daemon2484-21rtkit-daemon21:06:542
68699833,39cyclictest0-21swapper/023:41:520
686998328,13cyclictest0-21swapper/019:45:580
68699824,35cyclictest0-21swapper/020:56:580
248599820,5rtkit-daemon2484-21rtkit-daemon20:52:092
686998032,10cyclictest0-21swapper/019:01:540
155692710,6sleep20-21swapper/222:52:062
132782710,2sleep1201ktimersoftd/121:41:511
692996537,20cyclictest31426-21unixbench_singl22:17:092
248599640,5rtkit-daemon16318-21yum-updatesd-he20:41:473
69299624,13cyclictest0-21swapper/222:56:442
248599620,7rtkit-daemon0-21swapper/219:07:143
248599620,7rtkit-daemon0-21swapper/219:07:143
69199614,49cyclictest4576-21aten2.4-expect22:31:451
69199613,52cyclictest0-21swapper/120:37:091
248599610,7rtkit-daemon0-21swapper/221:07:013
691996023,12cyclictest0-21swapper/122:12:031
69399597,32cyclictest0-21swapper/322:31:353
69399594,36cyclictest0-21swapper/320:12:073
69299595,26cyclictest0-21swapper/221:01:542
69199593,49cyclictest30466-21fschecks_time20:02:021
248599590,7rtkit-daemon0-21swapper/222:11:593
69399585,46cyclictest0-21swapper/323:41:443
69399585,31cyclictest0-21swapper/321:21:373
69299584,46cyclictest0-21swapper/220:41:522
69199583,29cyclictest0-21swapper/122:02:091
69399575,45cyclictest0-21swapper/323:19:093
69399575,45cyclictest0-21swapper/323:19:093
69399575,37cyclictest0-21swapper/319:36:583
69399575,36cyclictest0-21swapper/319:41:523
69399575,32cyclictest0-21swapper/323:46:423
69299574,27cyclictest0-21swapper/223:11:432
692995725,14cyclictest0-21swapper/223:46:572
686995737,13cyclictest0-21swapper/023:12:010
69399566,41cyclictest0-21swapper/300:01:503
69399565,44cyclictest0-21swapper/321:41:483
69399565,33cyclictest0-21swapper/320:02:023
69399565,33cyclictest0-21swapper/319:03:303
693995639,11cyclictest10859-21cpuspeed_turbos23:51:463
69299564,35cyclictest0-21swapper/219:36:592
69299564,33cyclictest0-21swapper/223:32:082
69299564,30cyclictest0-21swapper/223:31:322
69199564,33cyclictest0-21swapper/120:47:031
69199563,47cyclictest26653-21sort23:16:501
69199563,47cyclictest26653-21sort23:16:501
69199563,46cyclictest0-21swapper/119:02:031
69399555,43cyclictest0-21swapper/319:26:533
69399555,43cyclictest0-21swapper/319:25:373
69399555,42cyclictest0-21swapper/322:41:373
69399555,42cyclictest0-21swapper/322:23:193
69399555,32cyclictest0-21swapper/323:36:463
69399554,33cyclictest0-21swapper/321:06:383
693995537,11cyclictest6179-21cpuspeed_turbos19:11:573
693995537,11cyclictest6179-21cpuspeed_turbos19:11:573
693995530,18cyclictest0-21swapper/322:41:353
693995520,29cyclictest1419-21runrttasks00:07:033
69299555,30cyclictest0-21swapper/220:12:022
69299554,43cyclictest0-21swapper/220:31:562
69299554,43cyclictest0-21swapper/220:31:562
69299552,47cyclictest0-21swapper/222:30:582
69299552,47cyclictest0-21swapper/220:26:492
69199554,45cyclictest0-21swapper/122:20:521
69199554,26cyclictest0-21swapper/122:51:451
69199553,46cyclictest0-21swapper/123:26:461
69199553,46cyclictest0-21swapper/119:52:071
69199553,46cyclictest0-21swapper/119:52:071
69199553,46cyclictest0-21swapper/119:37:071
686995536,13cyclictest0-21swapper/000:11:430
69399545,32cyclictest0-21swapper/322:31:553
69399544,29cyclictest0-21swapper/321:11:493
69399544,29cyclictest0-21swapper/321:11:493
693995416,25cyclictest0-21swapper/320:21:503
69299545,30cyclictest0-21swapper/219:27:002
69299545,30cyclictest0-21swapper/200:01:512
69299544,32cyclictest0-21swapper/221:52:062
69299544,32cyclictest0-21swapper/220:23:432
69299544,31cyclictest0-21swapper/219:47:052
69299544,31cyclictest0-21swapper/219:17:132
69299544,31cyclictest0-21swapper/200:25:192
69299544,31cyclictest0-21swapper/200:16:562
69299544,30cyclictest0-21swapper/222:36:352
69299544,30cyclictest0-21swapper/222:12:112
69299544,30cyclictest0-21swapper/220:37:022
692995436,11cyclictest1322-21cpuspeed_turbos19:01:562
69299543,32cyclictest0-21swapper/222:36:472
69199543,45cyclictest0-21swapper/120:26:581
69199543,45cyclictest0-21swapper/119:32:031
69199543,45cyclictest0-21swapper/100:16:541
69199543,44cyclictest27268-21aten_r1power_en00:26:421
69199543,44cyclictest0-21swapper/100:22:011
686995438,11cyclictest0-21swapper/021:41:480
248599540,6rtkit-daemon2484-21rtkit-daemon22:31:500
69399535,41cyclictest0-21swapper/323:36:323
69399535,31cyclictest0-21swapper/323:11:583
69399535,30cyclictest0-21swapper/321:56:463
69399535,30cyclictest0-21swapper/321:56:463
69399535,29cyclictest0-21swapper/320:21:403
69399535,15cyclictest0-21swapper/321:22:573
69399533,35cyclictest1287-21snmpd19:33:363
693995320,17cyclictest0-21swapper/319:51:343
693995319,17cyclictest0-21swapper/323:29:503
69299535,31cyclictest0-21swapper/219:06:552
69299535,31cyclictest0-21swapper/219:06:552
69299535,30cyclictest0-21swapper/223:06:542
69299535,30cyclictest0-21swapper/200:16:042
69299535,29cyclictest0-21swapper/223:52:022
69299535,29cyclictest0-21swapper/223:41:472
69299535,29cyclictest0-21swapper/221:32:092
69299535,29cyclictest0-21swapper/221:12:022
69299535,29cyclictest0-21swapper/221:12:022
69299535,29cyclictest0-21swapper/219:32:082
69299535,29cyclictest0-21swapper/219:11:592
69299535,29cyclictest0-21swapper/219:11:592
69299534,31cyclictest0-21swapper/221:56:582
69299534,31cyclictest0-21swapper/221:56:582
69299534,30cyclictest0-21swapper/223:21:592
69299534,30cyclictest0-21swapper/221:42:002
69299534,30cyclictest0-21swapper/219:56:592
69199535,41cyclictest4224-21http_loadtime23:36:551
691995338,9cyclictest10987-21grep22:42:061
69199533,44cyclictest0-21swapper/123:21:511
69199533,44cyclictest0-21swapper/120:56:521
69199533,43cyclictest9151-21if_eth021:32:001
69199533,43cyclictest17485-21if_eth022:56:541
69199533,42cyclictest3977-21sshd21:21:541
69199533,42cyclictest0-21swapper/119:17:031
69199533,41cyclictest0-21swapper/123:08:501
691995323,9cyclictest9216-21cat20:26:391
68699534,43cyclictest0-21swapper/020:21:390
248599530,5rtkit-daemon2484-21rtkit-daemon23:21:560
248599530,5rtkit-daemon2484-21rtkit-daemon22:42:050
248599530,5rtkit-daemon2484-21rtkit-daemon22:27:060
248599530,5rtkit-daemon2484-21rtkit-daemon21:52:003
248599530,5rtkit-daemon2484-21rtkit-daemon21:36:533
248599530,5rtkit-daemon2484-21rtkit-daemon21:27:163
248599530,5rtkit-daemon2484-21rtkit-daemon20:37:103
248599530,5rtkit-daemon2484-21rtkit-daemon19:51:493
248599530,5rtkit-daemon2484-21rtkit-daemon19:51:493
69399525,30cyclictest0-21swapper/322:47:033
69399525,29cyclictest22319-21sort00:16:313
69399524,33cyclictest0-21swapper/320:52:483
69399524,22cyclictest0-21swapper/321:47:053
69299525,28cyclictest0-21swapper/222:01:562
69299524,30cyclictest0-21swapper/222:41:452
69299524,30cyclictest0-21swapper/222:06:542
69299524,30cyclictest0-21swapper/219:22:092
69299524,29cyclictest0-21swapper/223:36:532
69299524,29cyclictest0-21swapper/222:22:102
69299524,29cyclictest0-21swapper/220:46:552
69299524,24cyclictest0-21swapper/219:52:112
69299524,24cyclictest0-21swapper/219:52:112
692995216,13cyclictest0-21swapper/200:06:432
691995238,9cyclictest17437-21head20:42:001
69199523,44cyclictest0-21swapper/121:57:001
69199523,44cyclictest0-21swapper/121:57:001
69199523,44cyclictest0-21swapper/121:26:421
69199523,42cyclictest0-21swapper/123:41:441
69199523,42cyclictest0-21swapper/122:36:511
69199523,42cyclictest0-21swapper/121:17:031
691995220,14cyclictest0-21swapper/119:42:161
69199522,43cyclictest0-21swapper/119:26:591
691995212,21cyclictest0-21swapper/120:31:571
691995212,21cyclictest0-21swapper/120:31:571
686995233,13cyclictest0-21swapper/000:07:010
686995226,21cyclictest0-21swapper/000:27:010
248599520,5rtkit-daemon2484-21rtkit-daemon20:57:023
248599520,5rtkit-daemon2484-21rtkit-daemon20:06:563
172792523,43sleep10-21swapper/100:04:311
69399515,39cyclictest0-21swapper/300:16:533
69399515,31cyclictest0-21swapper/320:26:523
693995131,12cyclictest30027-21cpuspeed_turbos22:16:503
69399513,40cyclictest1287-21snmpd23:24:123
69299515,30cyclictest0-21swapper/223:04:092
69299514,30cyclictest0-21swapper/221:46:542
69299514,24cyclictest0-21swapper/221:21:502
692995121,13cyclictest0-21swapper/221:27:122
692995120,14cyclictest0-21swapper/200:28:092
69199514,41cyclictest0-21swapper/121:46:571
69199514,40cyclictest0-21swapper/123:46:441
69199514,25cyclictest0-21swapper/121:51:461
69199513,42cyclictest0-21swapper/123:51:551
69199513,42cyclictest0-21swapper/123:31:561
69199513,42cyclictest0-21swapper/122:22:061
69199513,42cyclictest0-21swapper/100:12:011
691995122,12cyclictest0-21swapper/121:13:511
691995122,12cyclictest0-21swapper/121:13:511
248599510,6rtkit-daemon2484-21rtkit-daemon20:31:553
248599510,6rtkit-daemon2484-21rtkit-daemon20:31:553
248599510,5rtkit-daemon2484-21rtkit-daemon20:01:043
248599510,4rtkit-daemon2484-21rtkit-daemon21:32:003
248599510,4rtkit-daemon2484-21rtkit-daemon20:47:023
248599510,4rtkit-daemon2484-21rtkit-daemon19:41:572
184622514,40sleep00-21swapper/020:43:260
69399505,30cyclictest0-21swapper/323:06:583
69399504,37cyclictest0-21swapper/322:01:563
69399503,30cyclictest25478-21diskstats22:06:553
69399502,41cyclictest25052-21cpuspeed00:21:443
69299504,28cyclictest0-21swapper/222:46:522
69299504,28cyclictest0-21swapper/220:06:592
692995020,14cyclictest0-21swapper/220:02:122
69199504,40cyclictest0-21swapper/119:21:581
69199504,29cyclictest0-21swapper/120:06:551
69199504,28cyclictest0-21swapper/100:06:551
69199503,41cyclictest0-21swapper/123:56:441
69199503,41cyclictest0-21swapper/123:56:441
691995019,13cyclictest0-21swapper/120:16:531
691995019,12cyclictest0-21swapper/122:29:031
686995035,10cyclictest0-21swapper/022:06:560
686995035,10cyclictest0-21swapper/021:10:430
686995033,12cyclictest0-21swapper/019:31:590
686995033,11cyclictest0-21swapper/000:21:430
686995032,13cyclictest0-21swapper/019:36:520
68699503,40cyclictest0-21swapper/023:46:560
686995023,22cyclictest0-21swapper/021:27:200
248599500,5rtkit-daemon2484-21rtkit-daemon19:16:583
196652502,41sleep00-21swapper/021:53:440
142622502,41sleep00-21swapper/022:51:470
69399495,36cyclictest15913-21yum22:52:093
693994922,8cyclictest18667-21awk23:01:323
693994920,12cyclictest0-21swapper/323:01:513
69299494,28cyclictest0-21swapper/220:56:542
69199495,8cyclictest13869-21turbostat22:51:331
69199494,40cyclictest0-21swapper/120:52:071
69199494,38cyclictest0-21swapper/119:07:061
69199494,38cyclictest0-21swapper/119:07:061
69199494,27cyclictest0-21swapper/120:13:421
69199494,27cyclictest0-21swapper/119:56:561
69199493,40cyclictest0-21swapper/123:01:471
691994920,11cyclictest0-21swapper/121:01:391
69199492,42cyclictest0-21swapper/119:13:221
69199492,42cyclictest0-21swapper/119:13:221
68699494,37cyclictest31829-21munin-run22:21:340
68699494,28cyclictest0-21swapper/023:02:000
686994933,11cyclictest0-21swapper/022:56:440
686994931,13cyclictest0-21swapper/020:25:080
250592492,41sleep00-21swapper/019:51:510
250592492,41sleep00-21swapper/019:51:510
69399486,33cyclictest27214-21munin-node00:26:423
693994812,10cyclictest13801-21http_loadtime23:56:523
693994812,10cyclictest13801-21http_loadtime23:56:523
69299484,26cyclictest0-21swapper/221:40:532
69299484,25cyclictest0-21swapper/223:17:062
69299484,25cyclictest0-21swapper/223:17:062
69299484,13cyclictest0-21swapper/223:56:432
69299484,13cyclictest0-21swapper/223:56:432
69199485,36cyclictest0-21swapper/121:36:531
69199484,37cyclictest0-21swapper/119:01:431
69199483,39cyclictest0-21swapper/122:07:121
686994830,13cyclictest0-21swapper/022:21:450
68699483,38cyclictest21754-21df_abs23:06:470
686994828,8cyclictest835-21munin-node21:17:110
686994827,10cyclictest0-21swapper/023:17:050
686994827,10cyclictest0-21swapper/023:17:050
234062482,40sleep00-21swapper/020:55:280
692994720,13cyclictest0-21swapper/220:17:032
691994718,8cyclictest23763-21uname19:47:071
68699474,36cyclictest0-21swapper/023:57:030
68699474,36cyclictest0-21swapper/023:57:030
68699474,36cyclictest0-21swapper/021:32:080
686994736,7cyclictest105542sleep023:51:440
686994732,10cyclictest0-21swapper/019:23:340
686994728,13cyclictest0-21swapper/020:01:560
3922472,39sleep00-21swapper/021:14:100
3922472,39sleep00-21swapper/021:14:100
68699464,35cyclictest0-21swapper/020:06:570
68699464,34cyclictest0-21swapper/022:46:470
68699464,25cyclictest0-21swapper/020:51:380
68699463,37cyclictest0-21swapper/019:06:570
68699463,37cyclictest0-21swapper/019:06:570
686994628,13cyclictest0-21swapper/019:27:130
686994627,14cyclictest0-21swapper/020:41:390
686994626,9cyclictest22508-21telnet00:16:440
686994625,10cyclictest0-21swapper/023:31:540
686994622,12cyclictest0-21swapper/021:48:590
221682462,38sleep00-21swapper/022:00:160
221682462,38sleep00-21swapper/022:00:160
124802462,37sleep00-21swapper/021:38:440
69199454,13cyclictest0-21swapper/121:06:571
69199453,35cyclictest0-21swapper/123:13:591
68699454,35cyclictest0-21swapper/022:36:590
692994412,12cyclictest0-21swapper/219:01:422
68699448,29cyclictest0-21swapper/019:56:510
68699444,34cyclictest0-21swapper/000:01:490
68699443,35cyclictest0-21swapper/020:32:010
68699443,35cyclictest0-21swapper/020:32:010
686994426,12cyclictest0-21swapper/021:26:370
686994424,9cyclictest0-21swapper/022:12:060
78012433,34sleep00-21swapper/019:14:020
78012433,34sleep00-21swapper/019:14:020
244322432,35sleep00-21swapper/022:03:390
309662424,30sleep30-21swapper/318:56:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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