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2026-08-08 - 16:59

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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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 Sat Aug 08, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1475321140,5sleep226-21rcuc/208:22:552
8188991034,92cyclictest0-21swapper/011:18:040
8188991023,91cyclictest32549-21cut09:38:000
8188991003,90cyclictest0-21swapper/007:33:080
818899984,87cyclictest0-21swapper/006:58:160
8188999833,7cyclictest15834-21ssh10:02:470
818899974,86cyclictest0-21swapper/009:07:400
818899963,44cyclictest0-21swapper/008:31:140
818899963,37cyclictest0-21swapper/007:48:010
818899963,37cyclictest0-21swapper/007:48:010
818899953,85cyclictest0-21swapper/010:16:590
818899944,83cyclictest0-21swapper/010:52:560
818899943,45cyclictest0-21swapper/011:32:080
818899933,44cyclictest0-21swapper/010:40:360
818899933,43cyclictest0-21swapper/009:33:490
8188999322,13cyclictest0-21swapper/008:10:020
819699924,36cyclictest0-21swapper/310:17:423
818899924,82cyclictest0-21swapper/009:27:580
818899924,24cyclictest0-21swapper/009:59:050
818899923,43cyclictest0-21swapper/008:57:530
818899923,43cyclictest0-21swapper/008:48:470
819699913,26cyclictest0-21swapper/309:48:073
819699913,26cyclictest0-21swapper/309:48:073
8196999122,13cyclictest0-21swapper/310:57:283
818899913,44cyclictest0-21swapper/009:10:070
818899913,44cyclictest0-21swapper/009:10:070
818899913,43cyclictest0-21swapper/010:49:320
818899913,11cyclictest0-21swapper/011:15:200
818899903,42cyclictest0-21swapper/011:03:180
818899903,42cyclictest0-21swapper/011:03:180
818899903,37cyclictest15860-21grep08:23:080
8188999028,8cyclictest20089-21ssh10:08:000
8196998941,42cyclictest23721-21ntp_offset10:13:063
819699894,24cyclictest0-21swapper/308:10:253
8188998926,14cyclictest0-21swapper/008:43:020
818899892,46cyclictest0-21swapper/008:20:120
819699884,29cyclictest0-21swapper/310:58:553
819699883,32cyclictest9002-21cpuspeed_turbos09:02:543
8196998821,14cyclictest0-21swapper/311:08:043
818899883,43cyclictest0-21swapper/010:46:250
818899883,39cyclictest0-21swapper/009:53:230
818899883,27cyclictest0-21swapper/007:38:000
8188998824,12cyclictest0-21swapper/010:18:110
819699876,74cyclictest0-21swapper/308:38:343
819699873,34cyclictest0-21swapper/309:14:413
8196998724,9cyclictest22675-21gltestperf09:22:593
818899873,42cyclictest0-21swapper/010:57:470
818899873,42cyclictest0-21swapper/009:23:220
818899873,38cyclictest0-21swapper/008:05:490
819699864,75cyclictest0-21swapper/310:29:003
819699864,75cyclictest0-21swapper/310:29:003
819699864,74cyclictest0-21swapper/308:43:573
8196998616,12cyclictest0-21swapper/309:18:153
818899864,42cyclictest0-21swapper/009:51:540
818899864,42cyclictest0-21swapper/009:51:540
819699855,37cyclictest0-21swapper/310:03:033
819699855,24cyclictest0-21swapper/308:12:553
819699854,33cyclictest0-21swapper/309:08:063
819699854,33cyclictest0-21swapper/309:08:063
819699854,22cyclictest0-21swapper/310:37:223
818899854,13cyclictest0-21swapper/009:42:560
818899853,41cyclictest0-21swapper/010:22:510
818899853,41cyclictest0-21swapper/009:16:170
818899853,37cyclictest0-21swapper/008:52:530
8188998521,11cyclictest1124-21snmpd07:05:400
8188998518,13cyclictest0-21swapper/007:22:590
819699848,18cyclictest0-21swapper/310:42:003
819699843,23cyclictest0-21swapper/308:28:033
819699843,22cyclictest0-21swapper/311:17:503
818899844,27cyclictest0-21swapper/007:08:040
8188998431,11cyclictest0-21swapper/011:25:260
818899843,8cyclictest32601-21cut10:27:520
818899843,8cyclictest32601-21cut10:27:520
818899843,36cyclictest0-21swapper/010:32:590
8188998428,10cyclictest26264-21munin-node11:07:540
8188998422,22cyclictest0-21swapper/008:37:240
819699836,12cyclictest29785-21ls11:12:513
819699834,30cyclictest0-21swapper/310:43:443
819699834,26cyclictest0-21swapper/309:34:473
819699834,25cyclictest0-21swapper/308:25:033
819699834,12cyclictest0-21swapper/311:05:443
819699834,12cyclictest0-21swapper/311:05:443
819699833,32cyclictest0-21swapper/308:57:413
819699833,31cyclictest0-21swapper/308:35:533
819699833,22cyclictest0-21swapper/309:44:133
8196998323,9cyclictest10094-21gltestperf09:52:583
818899833,42cyclictest0-21swapper/007:55:280
819699825,24cyclictest0-21swapper/309:28:153
819699824,36cyclictest0-21swapper/308:48:063
819699824,23cyclictest0-21swapper/310:08:493
8196998210,13cyclictest0-21swapper/308:58:093
818899823,40cyclictest0-21swapper/008:13:530
819699816,12cyclictest0-21swapper/307:52:573
819699815,22cyclictest0-21swapper/311:25:353
819699814,12cyclictest0-21swapper/306:13:233
819699813,27cyclictest0-21swapper/308:19:293
8196998112,9cyclictest107550irq/46-eth009:58:553
8188998119,24cyclictest0-21swapper/008:42:130
819699805,22cyclictest0-21swapper/311:30:023
8196998023,9cyclictest7181-21aten_r1power_cu07:07:573
8188998023,13cyclictest0-21swapper/007:43:560
819699795,23cyclictest0-21swapper/309:38:513
819699794,29cyclictest0-21swapper/310:50:433
819699794,13cyclictest0-21swapper/307:38:223
819699793,13cyclictest0-21swapper/310:25:393
8196997920,8cyclictest25102-21munin-node06:38:053
8188997931,7cyclictest742-21diskmemload09:19:080
219499790,4rtkit-daemon2193-21rtkit-daemon06:19:113
819699784,14cyclictest0-21swapper/307:28:063
8196997818,11cyclictest0-21swapper/308:06:533
8196997723,10cyclictest1124-21snmpd07:15:413
8196997718,9cyclictest19092-21munin-node07:32:573
8196997626,9cyclictest25187-21proc_pri07:43:123
8196997626,8cyclictest4886-21aten_r1power_po07:02:583
219499760,12rtkit-daemon2193-21rtkit-daemon08:02:372
819699753,29cyclictest0-21swapper/307:02:053
819699743,10cyclictest28390-21runrttasks06:43:053
8195997434,24cyclictest30194-21cut11:12:552
219499740,12rtkit-daemon2193-21rtkit-daemon07:55:452
8196997326,9cyclictest8596-21cpu06:03:003
819699732,24cyclictest0-21swapper/306:33:003
267162730,3sleep2281ktimersoftd/209:28:142
219499730,5rtkit-daemon2193-21rtkit-daemon11:24:442
8196996927,7cyclictest1227-21runrttasks07:52:283
8196996927,7cyclictest1227-21runrttasks07:52:283
8196996925,8cyclictest32474-21cpu06:53:003
819699684,14cyclictest0-21swapper/306:47:563
8195996824,21cyclictest1227-21runrttasks08:30:432
8196996725,7cyclictest12160-21cpuspeed07:17:583
819599674,27cyclictest0-21swapper/209:42:342
819699663,10cyclictest20336-21munin-node06:28:103
8193996649,12cyclictest0-21swapper/108:17:581
219499660,5rtkit-daemon2193-21rtkit-daemon09:00:202
8195996511,46cyclictest0-21swapper/210:32:482
8193996522,23cyclictest0-21swapper/108:48:031
819599645,51cyclictest0-21swapper/210:23:042
819599645,51cyclictest0-21swapper/209:42:532
819599645,50cyclictest0-21swapper/210:48:002
819599644,33cyclictest0-21swapper/209:26:322
819599644,28cyclictest0-21swapper/208:20:052
8195996426,30cyclictest29879-21sendmail_mailtr09:33:102
8195996419,13cyclictest0-21swapper/206:28:112
818899644,52cyclictest0-21swapper/006:32:460
219499640,4rtkit-daemon2193-21rtkit-daemon10:10:392
819599636,31cyclictest0-21swapper/210:02:592
819599635,28cyclictest0-21swapper/210:19:382
819599635,27cyclictest0-21swapper/210:58:432
819599635,27cyclictest0-21swapper/208:47:452
819599634,51cyclictest0-21swapper/206:52:452
819599634,40cyclictest24297-21runrttasks07:42:582
819599634,29cyclictest0-21swapper/209:12:062
819599634,29cyclictest0-21swapper/209:12:062
819599634,28cyclictest0-21swapper/208:02:592
819599634,28cyclictest0-21swapper/207:28:132
819599634,28cyclictest0-21swapper/206:23:032
819599634,28cyclictest0-21swapper/206:23:032
819599634,27cyclictest0-21swapper/211:12:362
819599634,27cyclictest0-21swapper/210:02:102
8195996321,12cyclictest0-21swapper/209:13:082
8195996319,13cyclictest0-21swapper/208:35:432
8193996344,13cyclictest0-21swapper/108:17:291
819599624,33cyclictest0-21swapper/209:20:372
819599624,28cyclictest0-21swapper/211:18:052
819599624,28cyclictest0-21swapper/211:04:042
819599624,28cyclictest0-21swapper/211:04:042
819599624,28cyclictest0-21swapper/209:03:212
819599624,28cyclictest0-21swapper/208:44:352
819599624,28cyclictest0-21swapper/207:48:182
819599624,28cyclictest0-21swapper/207:48:182
819599624,28cyclictest0-21swapper/206:33:222
819599624,27cyclictest0-21swapper/209:55:412
819599624,27cyclictest0-21swapper/208:39:262
819599624,26cyclictest0-21swapper/210:13:352
819599624,25cyclictest0-21swapper/210:38:422
8195996221,13cyclictest0-21swapper/209:47:542
8195996221,13cyclictest0-21swapper/209:47:542
8195996218,14cyclictest0-21swapper/207:23:112
8195996216,13cyclictest0-21swapper/210:54:192
8193996247,10cyclictest0-21swapper/109:32:581
819599614,28cyclictest0-21swapper/211:28:432
819599614,27cyclictest0-21swapper/210:47:262
819599614,26cyclictest0-21swapper/206:02:472
819599613,34cyclictest6931-21latency_hist07:07:452
819599613,28cyclictest0-21swapper/206:38:022
8195996121,13cyclictest0-21swapper/208:13:062
8195996119,13cyclictest0-21swapper/208:08:082
8195996116,13cyclictest0-21swapper/207:17:452
819399615,12cyclictest833-21iostat_ios10:28:011
819399615,12cyclictest833-21iostat_ios10:28:011
8193996145,11cyclictest0-21swapper/109:08:041
8193996145,11cyclictest0-21swapper/109:08:041
240822617,47sleep10-21swapper/109:24:471
819599604,28cyclictest0-21swapper/206:18:092
819599604,27cyclictest0-21swapper/210:29:292
819599604,27cyclictest0-21swapper/210:29:292
819599604,27cyclictest0-21swapper/206:47:072
819599604,26cyclictest0-21swapper/208:54:342
8195996019,12cyclictest0-21swapper/207:34:302
8195996018,13cyclictest0-21swapper/207:08:202
819399604,38cyclictest0-21swapper/108:43:501
819599594,27cyclictest0-21swapper/206:13:182
8195995920,12cyclictest0-21swapper/206:03:162
8195995819,12cyclictest0-21swapper/206:55:392
8193995838,14cyclictest0-21swapper/109:39:451
8193995824,12cyclictest0-21swapper/110:43:501
8193995816,26cyclictest25790-21netstat08:38:071
199652583,47sleep10-21swapper/108:28:521
819599574,29cyclictest0-21swapper/207:38:042
819599574,29cyclictest0-21swapper/207:18:112
819399574,28cyclictest0-21swapper/111:17:481
8193995738,12cyclictest0-21swapper/107:43:101
8193995710,37cyclictest1080-21lldpd09:28:041
818899573,48cyclictest0-21swapper/006:50:140
818899573,46cyclictest895-21latency_hist08:02:440
8195995638,11cyclictest12566-21grep06:08:212
819399565,13cyclictest0-21swapper/106:09:221
819399564,46cyclictest0-21swapper/109:50:481
819399564,46cyclictest0-21swapper/109:50:481
819399563,14cyclictest0-21swapper/110:37:511
818899565,44cyclictest0-21swapper/006:07:590
94952553,45sleep10-21swapper/111:30:051
8193995537,12cyclictest0-21swapper/110:10:361
8193995529,11cyclictest0-21swapper/108:06:291
8193995527,13cyclictest0-21swapper/110:56:371
818899553,46cyclictest0-21swapper/007:22:450
219499550,5rtkit-daemon2193-21rtkit-daemon06:58:022
819399546,42cyclictest0-21swapper/109:53:001
819399546,29cyclictest0-21swapper/111:22:561
819399544,43cyclictest0-21swapper/109:17:531
819399544,13cyclictest0-21swapper/109:12:591
8193995438,12cyclictest0-21swapper/111:11:591
8193995437,11cyclictest0-21swapper/108:23:161
8193995436,12cyclictest0-21swapper/111:02:361
8193995435,13cyclictest0-21swapper/110:03:111
8193995434,13cyclictest0-21swapper/108:54:311
8193995422,13cyclictest0-21swapper/111:02:531
8193995422,13cyclictest0-21swapper/111:02:531
8193995414,32cyclictest0-21swapper/110:18:011
8193995412,24cyclictest1227-21runrttasks09:43:571
325582543,44sleep10-21swapper/111:17:351
219499540,5rtkit-daemon2193-21rtkit-daemon05:59:191
151732543,10sleep10-21swapper/110:01:081
819399534,43cyclictest0-21swapper/109:02:561
819399534,12cyclictest0-21swapper/110:14:311
819399534,12cyclictest0-21swapper/108:32:441
8193995337,11cyclictest0-21swapper/110:47:571
8193995337,11cyclictest0-21swapper/106:18:041
8193995336,12cyclictest0-21swapper/106:48:091
8193995322,14cyclictest0-21swapper/108:07:531
8193995321,13cyclictest0-21swapper/107:26:211
227562533,43sleep10-21swapper/107:38:121
819399524,28cyclictest0-21swapper/110:23:121
8193995239,7cyclictest10961-21rt-features07:13:141
8193995236,11cyclictest0-21swapper/108:58:111
819399523,21cyclictest0-21swapper/106:23:101
819399523,21cyclictest0-21swapper/106:23:101
8188995230,9cyclictest9558-21munin-node07:13:080
818899523,43cyclictest0-21swapper/006:21:310
818899523,43cyclictest0-21swapper/006:13:150
819399514,40cyclictest0-21swapper/106:32:591
8193995135,10cyclictest0-21swapper/107:03:041
8188995123,14cyclictest0-21swapper/006:43:070
44892513,10sleep10-21swapper/107:02:171
92722503,10sleep10-21swapper/107:12:121
819399504,40cyclictest0-21swapper/106:42:561
819399504,39cyclictest0-21swapper/106:02:591
819399504,28cyclictest0-21swapper/107:35:441
819399504,27cyclictest0-21swapper/107:58:071
8193995033,11cyclictest0-21swapper/110:32:381
8193995026,18cyclictest17366-21fschecks_count07:28:021
8193995018,10cyclictest13612-21df06:13:021
818899503,41cyclictest0-21swapper/006:36:360
818899503,41cyclictest0-21swapper/006:23:520
818899503,41cyclictest0-21swapper/006:23:520
8188995026,8cyclictest27269-21awk06:42:460
224232503,10sleep10-21swapper/106:32:061
185812505,39sleep00-21swapper/007:29:120
819399494,26cyclictest0-21swapper/106:38:171
8193994933,11cyclictest0-21swapper/107:22:451
8193994931,12cyclictest0-21swapper/107:48:011
8193994931,12cyclictest0-21swapper/107:48:011
8188994934,9cyclictest32611-21cpuspeed_turbos06:53:010
8193994819,12cyclictest0-21swapper/107:55:481
819399475,37cyclictest0-21swapper/106:53:111
818899463,24cyclictest0-21swapper/006:02:580
78672464,6sleep00-21swapper/005:59:000
819699439,27cyclictest0-21swapper/307:57:573
819699423,25cyclictest0-21swapper/306:23:003
819699423,25cyclictest0-21swapper/306:23:003
8196994129,7cyclictest11463-21fschecks_count06:08:063
819699404,22cyclictest0-21swapper/307:22:573
79472404,29sleep30-21swapper/306:00:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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