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2026-08-06 - 18:27

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 Thu Aug 06, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18668991004,36cyclictest0-21swapper/009:59:580
1866899974,26cyclictest10663-21ssh09:39:520
1866899953,85cyclictest0-21swapper/009:37:180
1866899944,26cyclictest0-21swapper/010:10:040
1866899943,27cyclictest22310-21ssh09:58:180
1866899925,29cyclictest0-21swapper/011:07:170
1866899924,31cyclictest0-21swapper/008:29:350
1866899924,26cyclictest0-21swapper/008:44:490
1866899924,24cyclictest8533-21python10:25:000
18668999220,10cyclictest107550irq/46-eth009:29:320
1866899915,33cyclictest0-21swapper/009:05:000
1866899915,33cyclictest0-21swapper/008:05:020
1866899915,21cyclictest27083-21hddtemp_smartct10:04:510
1866899914,11cyclictest0-21swapper/008:36:550
324752900,9chrt1867799cyclictest08:34:533
1866899905,12cyclictest1227-21runrttasks11:21:340
18668999035,45cyclictest16797-21cat07:05:090
18668999027,19cyclictest4723-21tr11:09:390
1866899895,27cyclictest0-21swapper/009:50:070
1866899894,31cyclictest12472-21ssh08:54:440
1866899894,29cyclictest0-21swapper/011:27:370
1866899894,28cyclictest0-21swapper/007:54:350
1866899894,28cyclictest0-21swapper/007:19:530
1866899894,23cyclictest0-21swapper/008:09:560
1866899894,23cyclictest0-21swapper/008:09:560
1866899894,13cyclictest0-21swapper/009:19:470
1866899894,13cyclictest0-21swapper/006:48:500
1866899894,13cyclictest0-21swapper/006:48:500
18668998921,15cyclictest0-21swapper/009:12:380
18668998917,10cyclictest9771-21ssh08:49:510
18668998917,10cyclictest9771-21ssh08:49:510
18668998916,13cyclictest0-21swapper/011:00:110
18668998914,13cyclictest0-21swapper/009:44:500
1866899884,76cyclictest0-21swapper/008:20:240
1866899884,31cyclictest4155-21gltestperf06:39:580
1866899884,13cyclictest0-21swapper/011:29:440
1866899884,11cyclictest1227-21runrttasks10:18:560
1866899884,11cyclictest1227-21runrttasks10:18:560
1866899883,34cyclictest0-21swapper/008:41:200
18668998823,11cyclictest9460-21grep11:15:000
18668998820,12cyclictest0-21swapper/010:21:520
1866899875,74cyclictest0-21swapper/010:34:470
1866899874,34cyclictest0-21swapper/008:14:470
1866899874,28cyclictest0-21swapper/006:25:020
18668998728,11cyclictest29386-21kernelversion08:29:570
18668998726,13cyclictest1227-21runrttasks10:54:410
18668998726,13cyclictest1227-21runrttasks10:54:410
18668998725,10cyclictest25281-21ssh10:50:040
18668998714,13cyclictest0-21swapper/009:33:510
18668998714,13cyclictest0-21swapper/009:33:510
1866899864,33cyclictest0-21swapper/010:39:480
1866899864,28cyclictest0-21swapper/007:15:100
1866899864,24cyclictest0-21swapper/009:14:570
1866899863,23cyclictest0-21swapper/010:44:420
1866899855,31cyclictest0-21swapper/010:29:400
1866899854,31cyclictest0-21swapper/006:04:530
1866899854,31cyclictest0-21swapper/006:04:530
1866899854,13cyclictest0-21swapper/006:35:070
1866899853,36cyclictest0-21swapper/006:19:400
18668998522,12cyclictest0-21swapper/009:03:140
18668998419,12cyclictest0-21swapper/006:13:350
1866899837,21cyclictest0-21swapper/006:54:390
1866899834,23cyclictest11426-21ssh08:04:350
1866899824,27cyclictest0-21swapper/007:29:590
1866899824,27cyclictest0-21swapper/007:29:590
1866899823,38cyclictest0-21swapper/006:20:450
1866899816,19cyclictest0-21swapper/006:59:390
1866899814,26cyclictest0-21swapper/007:09:540
1866899814,24cyclictest0-21swapper/007:24:480
1866899807,27cyclictest0-21swapper/007:37:570
1866899805,24cyclictest0-21swapper/006:54:500
219499790,4rtkit-daemon2193-21rtkit-daemon11:19:371
1866899794,23cyclictest0-21swapper/007:54:480
1866899764,31cyclictest0-21swapper/007:44:580
160262740,13sleep21867699cyclictest11:25:002
193342720,3sleep1201ktimersoftd/109:04:461
1867699718,56cyclictest0-21swapper/208:38:462
18676997118,45cyclictest23568-21cut09:59:482
18676997116,34cyclictest25763-21ssh09:14:442
18676997017,45cyclictest9422-21grep11:15:002
18676996917,43cyclictest30874-21telnet06:29:482
1867699674,54cyclictest0-21swapper/210:45:362
18676996719,40cyclictest21054-21ssh09:55:002
18676996716,43cyclictest0-21swapper/207:39:512
1867499674,56cyclictest0-21swapper/110:49:541
18677996622,27cyclictest5856-21sendmail_mailqu11:09:553
18676996615,29cyclictest9758-21df_abs08:49:502
18676996615,29cyclictest9758-21df_abs08:49:502
18676996614,33cyclictest4372-21munin-node11:09:362
1867499664,44cyclictest0-21swapper/108:45:411
18674996612,41cyclictest0-21swapper/110:48:401
3382650,4sleep2419-21basename10:14:432
3382650,4sleep2419-21basename10:14:432
1867699654,53cyclictest0-21swapper/209:30:042
1867699654,53cyclictest0-21swapper/209:30:042
18676996519,38cyclictest11977-21cat10:30:012
18676996517,28cyclictest13719-21grep09:44:492
18676996515,42cyclictest14910-21ssh10:34:552
1867499654,48cyclictest0-21swapper/108:07:461
1867499653,43cyclictest0-21swapper/108:10:031
1867499653,43cyclictest0-21swapper/108:10:031
1867699646,52cyclictest0-21swapper/206:59:552
18676996416,39cyclictest30668-21df_abs10:59:452
18676996414,42cyclictest10077-21grep09:39:452
18676996412,44cyclictest0-21swapper/208:45:112
169022643,9sleep316964-21aten2.4-expect10:39:393
1867699635,51cyclictest14944-21aten_r1power_fr08:09:442
1867699635,51cyclictest14944-21aten_r1power_fr08:09:442
1867699633,54cyclictest0-21swapper/210:05:002
18676996318,38cyclictest0-21swapper/211:04:492
18676996316,39cyclictest30314-21gltestperf10:09:512
1867499634,50cyclictest0-21swapper/109:45:441
1867499633,54cyclictest0-21swapper/109:35:071
1867699629,46cyclictest0-21swapper/208:08:482
1867699629,45cyclictest0-21swapper/210:55:012
1867699629,45cyclictest0-21swapper/210:55:012
18676996216,39cyclictest3254-21fschecks_count08:39:512
1867499625,51cyclictest0-21swapper/111:30:271
219499610,5rtkit-daemon0-21swapper/309:01:582
1867699619,45cyclictest0-21swapper/206:43:452
1867699619,44cyclictest0-21swapper/208:24:582
1867699618,46cyclictest0-21swapper/209:26:142
1867699618,45cyclictest0-21swapper/208:19:502
1867699617,14cyclictest0-21swapper/208:54:582
18676996116,26cyclictest1227-21runrttasks08:31:442
18676996115,30cyclictest23660-21ssh09:09:592
18676996112,42cyclictest7698-21fschecks_count10:24:472
18676996110,44cyclictest0-21swapper/211:21:502
18676996110,44cyclictest0-21swapper/210:19:442
18674996143,12cyclictest19937-21cpuspeed_turbos09:54:451
18677996041,11cyclictest4161-21gltestperf06:39:583
1867699609,44cyclictest0-21swapper/207:59:542
1867699608,44cyclictest0-21swapper/209:19:472
18676996015,29cyclictest11403-21diskmemload10:49:592
18676996014,39cyclictest0-21swapper/208:15:052
18674996043,11cyclictest28779-21tr06:24:521
1867499604,50cyclictest18262-21sh09:02:311
1867499603,51cyclictest0-21swapper/111:14:411
1867499603,50cyclictest16798-21ssh11:27:351
1867499602,51cyclictest5282-21gltestperf07:49:541
18674996018,36cyclictest5140-21fschecks_time11:09:441
18674996014,38cyclictest0-21swapper/108:25:081
250052590,8sleep30-21swapper/308:24:453
219499590,6rtkit-daemon0-21swapper/007:30:011
219499590,6rtkit-daemon0-21swapper/007:30:011
18677995940,11cyclictest9505-21unixbench_singl11:15:013
1867699599,42cyclictest0-21swapper/207:04:502
1867699595,47cyclictest0-21swapper/209:52:092
18676995913,38cyclictest29342-21crond07:34:362
18676995913,38cyclictest29342-21crond07:34:362
18676995911,33cyclictest0-21swapper/206:45:102
18676995911,33cyclictest0-21swapper/206:45:102
18676995910,42cyclictest0-21swapper/209:38:312
1867499594,48cyclictest0-21swapper/109:50:071
1867499594,48cyclictest0-21swapper/107:24:591
1866899593,12cyclictest32715-21fschecks_time07:39:540
219499580,6rtkit-daemon0-21swapper/306:13:192
219499580,5rtkit-daemon2193-21rtkit-daemon06:20:113
1867799583,47cyclictest0-21swapper/306:30:013
1867699589,42cyclictest0-21swapper/207:11:542
1867499586,32cyclictest107550irq/46-eth006:46:171
1867499586,32cyclictest107550irq/46-eth006:46:171
1867499584,48cyclictest0-21swapper/109:27:181
1867499584,46cyclictest0-21swapper/110:44:211
1867499584,46cyclictest0-21swapper/108:19:551
1867499584,45cyclictest0-21swapper/110:14:321
1867499584,45cyclictest0-21swapper/110:14:321
18674995832,20cyclictest0-21swapper/106:55:091
1867499583,49cyclictest0-21swapper/109:30:061
1867499583,49cyclictest0-21swapper/109:30:061
1867499582,22cyclictest0-21swapper/108:35:501
106082584,47sleep30-21swapper/310:29:433
219499570,6rtkit-daemon0-21swapper/306:23:262
18677995740,10cyclictest8598-21unixbench_singl07:55:093
18677995735,14cyclictest0-21swapper/309:24:493
1867699578,43cyclictest0-21swapper/210:41:242
1867699578,35cyclictest0-21swapper/209:05:012
1867499574,48cyclictest0-21swapper/110:20:091
1867499574,47cyclictest0-21swapper/111:07:231
1867499574,47cyclictest0-21swapper/111:00:021
1867499574,47cyclictest0-21swapper/110:06:301
1867499574,36cyclictest0-21swapper/108:44:081
18674995739,11cyclictest24672-21unixbench_multi10:00:041
219499560,7rtkit-daemon0-21swapper/306:08:342
219499560,7rtkit-daemon0-21swapper/306:08:342
18676995615,25cyclictest0-21swapper/211:30:312
18676995610,39cyclictest1227-21runrttasks06:25:072
1867499564,46cyclictest0-21swapper/107:14:481
1867499564,45cyclictest0-21swapper/109:21:461
1867499564,45cyclictest0-21swapper/108:17:371
1867499564,44cyclictest29759-21cpuspeed_turbos10:09:451
1867499564,23cyclictest0-21swapper/110:24:571
1867499563,46cyclictest0-21swapper/110:56:111
1867499563,46cyclictest0-21swapper/110:56:111
219499550,6rtkit-daemon2193-21rtkit-daemon07:45:451
219499550,5rtkit-daemon2193-21rtkit-daemon08:33:591
219499550,5rtkit-daemon2193-21rtkit-daemon06:13:043
219499550,5rtkit-daemon2193-21rtkit-daemon06:06:573
219499550,5rtkit-daemon2193-21rtkit-daemon06:06:573
1867799558,40cyclictest0-21swapper/309:44:433
1867799554,43cyclictest0-21swapper/308:54:453
18677995536,13cyclictest0-21swapper/310:20:503
18676995512,36cyclictest4455-21munin-node07:49:552
1867499558,31cyclictest0-21swapper/109:16:571
1867499555,43cyclictest0-21swapper/110:32:191
1867499554,35cyclictest0-21swapper/108:53:111
1867499554,35cyclictest0-21swapper/108:53:111
1867499554,34cyclictest0-21swapper/109:41:211
1867499554,34cyclictest0-21swapper/108:59:241
1867499553,45cyclictest13664-21basename10:34:401
219499540,5rtkit-daemon2193-21rtkit-daemon08:00:001
1867799543,27cyclictest0-21swapper/309:00:003
18676995419,28cyclictest3789-21grep07:45:092
1867499544,45cyclictest0-21swapper/109:13:581
1867499544,31cyclictest0-21swapper/106:10:101
1867799534,24cyclictest0-21swapper/308:29:363
18677995335,11cyclictest7467-21sed06:45:123
18677995335,11cyclictest7467-21sed06:45:123
18677995334,12cyclictest13718-21gltestperf06:59:563
1867799533,29cyclictest0-21swapper/309:54:323
18677995322,26cyclictest6974-21kernelversion08:44:563
1867699534,43cyclictest0-21swapper/206:49:512
1867499535,41cyclictest0-21swapper/107:54:471
1867499534,34cyclictest0-21swapper/106:29:481
138372534,42sleep30-21swapper/308:06:533
32372522,10sleep30-21swapper/311:06:043
219499520,4rtkit-daemon2193-21rtkit-daemon06:24:493
212442523,41sleep321372-21unixbench_multi09:55:053
1867799524,29cyclictest0-21swapper/310:14:303
1867799524,29cyclictest0-21swapper/309:10:023
1867799523,43cyclictest0-21swapper/310:57:053
1867799523,43cyclictest0-21swapper/310:57:053
18677995221,13cyclictest0-21swapper/308:40:053
18677995220,13cyclictest0-21swapper/310:14:553
18677995220,13cyclictest0-21swapper/310:14:553
1867699528,36cyclictest0-21swapper/207:20:092
1867699527,39cyclictest0-21swapper/207:39:362
1867699525,40cyclictest0-21swapper/207:15:092
18676995212,32cyclictest0-21swapper/206:14:552
1867499524,42cyclictest0-21swapper/107:23:511
1867499524,42cyclictest0-21swapper/107:11:461
1867499524,35cyclictest0-21swapper/107:37:081
18674995236,11cyclictest8458-21cut06:49:531
18674995230,15cyclictest0-21swapper/107:39:511
1867499523,29cyclictest0-21swapper/106:14:561
1867799514,10cyclictest15223-21cpuspeed_turbos08:09:463
1867799514,10cyclictest15223-21cpuspeed_turbos08:09:463
18677995134,10cyclictest4632-21grep09:30:013
18677995134,10cyclictest4632-21grep09:30:013
18677995120,13cyclictest0-21swapper/310:05:073
18677995119,26cyclictest15779-21swap11:24:583
1867699518,27cyclictest0-21swapper/206:04:412
1867699517,38cyclictest24835-21chrt07:24:472
1867699516,38cyclictest0-21swapper/207:54:592
1867499514,40cyclictest0-21swapper/106:19:571
1867499514,34cyclictest0-21swapper/106:44:181
1867499514,30cyclictest0-21swapper/106:59:481
18674995132,13cyclictest15650-21cat07:04:521
1867499513,32cyclictest0-21swapper/106:34:501
136572513,10sleep30-21swapper/311:23:093
282112503,9sleep30-21swapper/307:30:013
282112503,9sleep30-21swapper/307:30:013
250282502,10sleep30-21swapper/310:01:093
1867799505,26cyclictest0-21swapper/309:34:503
1867799504,40cyclictest0-21swapper/307:59:533
1867799504,28cyclictest0-21swapper/310:34:593
1867799504,28cyclictest0-21swapper/309:15:043
1867799504,27cyclictest0-21swapper/310:44:513
1867799504,27cyclictest0-21swapper/306:15:063
18677995033,11cyclictest20893-21unixbench_singl09:05:073
1867799503,9cyclictest8508-21sendmail_mailqu10:24:593
18677995018,25cyclictest20902-21gltestperf07:14:563
1867499503,41cyclictest0-21swapper/106:05:121
1867499503,41cyclictest0-21swapper/106:05:121
1866899505,27cyclictest0-21swapper/006:29:520
1867799495,38cyclictest0-21swapper/310:59:483
1867799494,28cyclictest0-21swapper/311:29:473
1867799494,26cyclictest0-21swapper/309:42:213
1867799494,25cyclictest0-21swapper/308:14:573
1867799494,22cyclictest0-21swapper/309:19:453
18677994918,25cyclictest22143-21df_abs08:19:503
18677994911,8cyclictest19810-21awk07:14:373
1867699494,27cyclictest0-21swapper/206:55:032
243092482,10sleep30-21swapper/307:21:183
1867799484,26cyclictest0-21swapper/307:29:373
1867799484,26cyclictest0-21swapper/307:08:533
1867799483,28cyclictest0-21swapper/310:49:553
1867799483,28cyclictest0-21swapper/307:34:563
41322472,38sleep30-21swapper/307:48:313
1867799474,26cyclictest0-21swapper/308:49:533
1867799474,26cyclictest0-21swapper/308:49:533
1867799474,25cyclictest0-21swapper/307:44:373
123832462,10sleep30-21swapper/306:56:233
18677994518,8cyclictest18647-21latency_hist06:04:413
18677994515,12cyclictest0-21swapper/306:49:513
18676994514,25cyclictest0-21swapper/206:35:042
18677994414,23cyclictest1827-21kernelversion06:35:013
1867799435,23cyclictest0-21swapper/307:49:463
183222413,32sleep00-21swapper/006:00:340
1867499393,30cyclictest0-21swapper/106:04:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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