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2026-03-21 - 22:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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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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 rack3slot6s.osadl.org (updated Sat Mar 21, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18321211897,16sleep00-21swapper/007:08:440
184042114103,6sleep10-21swapper/107:09:491
18219211294,13sleep20-21swapper/207:07:262
18255211098,6sleep30-21swapper/307:07:563
309782780,1sleep20-21swapper/209:00:102
322722720,1sleep30-21swapper/310:48:343
54962640,0sleep30-21swapper/309:12:143
18448994731,14cyclictest12430-21ssh09:20:100
18450993918,19cyclictest0-21swapper/207:25:112
1844899350,17cyclictest0-21swapper/012:20:130
44732240,0sleep10-21swapper/110:19:421
1845199220,20cyclictest0-21swapper/307:20:103
1845199211,2cyclictest0-21swapper/311:35:123
1845199210,19cyclictest0-21swapper/311:45:103
1844899211,18cyclictest0-21swapper/007:25:110
1844999200,18cyclictest0-21swapper/107:10:111
18450991815,2cyclictest12030-21kworker/u8:209:58:042
1845199170,15cyclictest0-21swapper/311:41:023
18450991714,2cyclictest21117-21kworker/u8:211:50:042
18450991713,2cyclictest32013-21kworker/u8:210:56:052
1845099161,3cyclictest2672-21ssh10:51:012
18450991611,3cyclictest0-21swapper/209:42:472
18448991611,3cyclictest5656-21latency_hist10:55:000
18451991510,3cyclictest0-21swapper/310:44:273
1845099152,7cyclictest0-21swapper/212:00:002
1845099151,3cyclictest4268-21ssh11:26:262
1845099151,3cyclictest19623-21ssh11:43:142
1845099151,12cyclictest23449-21ssh12:20:552
18450991510,3cyclictest17553-21latency08:25:172
1845099150,2cyclictest0-21swapper/210:44:012
1845099150,13cyclictest0-21swapper/209:50:502
1844999150,4cyclictest0-21swapper/109:56:031
18448991512,2cyclictest0-21swapper/009:18:300
1844899150,13cyclictest2291-21diskmemload10:02:000
1844899150,13cyclictest0-21swapper/011:27:400
1844899150,13cyclictest0-21swapper/009:55:190
1844899150,13cyclictest0-21swapper/009:35:500
1845199149,3cyclictest28207-21ssh11:18:133
1845199142,7cyclictest0-21swapper/307:30:003
1845199142,6cyclictest0-21swapper/307:40:003
1845199142,6cyclictest0-21swapper/307:40:003
18451991410,2cyclictest0-21swapper/310:20:053
1845199140,13cyclictest0-21swapper/309:45:123
1845199140,12cyclictest0-21swapper/312:12:463
1845199140,12cyclictest0-21swapper/309:42:053
1845099149,3cyclictest19136-21load10:00:172
1845099141,3cyclictest32063-21ssh10:14:452
18450991411,2cyclictest6306-21kworker/u8:208:05:042
18450991411,2cyclictest0-21swapper/212:10:282
18450991411,2cyclictest0-21swapper/212:08:482
1845099140,2cyclictest0-21swapper/209:45:172
1845099140,2cyclictest0-21swapper/209:10:052
1845099140,12cyclictest0-21swapper/212:30:482
18449991411,2cyclictest0-21swapper/112:25:141
18449991411,2cyclictest0-21swapper/111:02:341
18449991411,2cyclictest0-21swapper/108:25:141
1844999140,2cyclictest0-21swapper/110:45:141
1844999140,2cyclictest0-21swapper/109:00:131
1844999140,13cyclictest0-21swapper/109:05:131
1844999140,12cyclictest19801-21ssh10:00:571
1844999140,12cyclictest0-21swapper/111:25:401
1844899149,3cyclictest0-21swapper/011:10:530
1844899142,6cyclictest10533-21ssh11:00:000
18448991411,2cyclictest0-21swapper/012:04:100
18448991411,2cyclictest0-21swapper/011:49:500
18448991411,2cyclictest0-21swapper/010:19:300
1844899140,3cyclictest21918-21latency_hist09:30:000
1844899140,2cyclictest2291-21diskmemload10:32:100
1844899140,2cyclictest0-21swapper/012:35:170
1844899140,2cyclictest0-21swapper/012:19:410
1844899140,12cyclictest8389-21modprobe12:05:150
1844899140,12cyclictest30720-21rm12:29:210
1844899140,12cyclictest0-21swapper/010:46:030
60332130,2sleep30-21swapper/311:29:153
42672130,2sleep10-21swapper/110:52:531
322882130,2sleep20-21swapper/211:22:082
18451991310,2cyclictest0-21swapper/311:50:243
18451991310,2cyclictest0-21swapper/311:21:123
18451991310,2cyclictest0-21swapper/311:02:463
18451991310,2cyclictest0-21swapper/310:38:323
18451991310,2cyclictest0-21swapper/309:26:273
18451991310,2cyclictest0-21swapper/309:20:023
18451991310,2cyclictest0-21swapper/308:00:163
1845199130,3cyclictest20845-21chrt10:02:003
1845199130,2cyclictest0-21swapper/312:26:323
1845199130,2cyclictest0-21swapper/310:15:333
1845199130,2cyclictest0-21swapper/309:52:243
1845199130,2cyclictest0-21swapper/307:45:193
1845199130,12cyclictest0-21swapper/312:35:023
1845199130,12cyclictest0-21swapper/312:00:223
1845199130,12cyclictest0-21swapper/310:55:133
1845199130,12cyclictest0-21swapper/310:30:523
1845199130,12cyclictest0-21swapper/310:10:323
1845199130,12cyclictest0-21swapper/309:37:023
1845199130,12cyclictest0-21swapper/309:17:123
1845199130,11cyclictest7043-21kworker/u8:110:27:043
1845199130,11cyclictest0-21swapper/312:05:273
1845199130,11cyclictest0-21swapper/311:11:143
1845099139,2cyclictest6360-21ssh10:20:402
1845099139,2cyclictest0-21swapper/209:21:022
1845099132,7cyclictest0-21swapper/209:30:002
18450991310,2cyclictest30424-21kworker/u8:007:39:042
18450991310,2cyclictest30424-21kworker/u8:007:39:042
18450991310,2cyclictest2291-21diskmemload12:01:162
18450991310,2cyclictest15131-21kworker/u8:111:46:042
18450991310,2cyclictest13793-21kworker/u8:212:15:042
18450991310,2cyclictest0-21swapper/210:26:192
18450991310,2cyclictest0-21swapper/210:07:402
18450991310,2cyclictest0-21swapper/209:15:592
1845099130,2cyclictest0-21swapper/212:39:282
1845099130,2cyclictest0-21swapper/212:29:162
1845099130,2cyclictest0-21swapper/211:15:502
1845099130,2cyclictest0-21swapper/211:10:012
1845099130,2cyclictest0-21swapper/208:35:152
1845099130,12cyclictest0-21swapper/211:38:142
1845099130,12cyclictest0-21swapper/211:00:112
1845099130,12cyclictest0-21swapper/210:48:572
1845099130,12cyclictest0-21swapper/210:34:372
1845099130,12cyclictest0-21swapper/210:15:352
1844999139,2cyclictest14541-21ssh10:30:121
1844999133,6cyclictest0-21swapper/107:47:541
18449991310,2cyclictest0-21swapper/112:30:131
18449991310,2cyclictest0-21swapper/111:46:011
18449991310,2cyclictest0-21swapper/111:30:281
18449991310,2cyclictest0-21swapper/110:20:181
18449991310,2cyclictest0-21swapper/109:15:161
18449991310,2cyclictest0-21swapper/107:41:021
1844999130,2cyclictest2291-21diskmemload12:06:001
1844999130,2cyclictest0-21swapper/111:56:281
1844999130,2cyclictest0-21swapper/109:38:331
1844999130,2cyclictest0-21swapper/109:22:031
1844999130,12cyclictest2291-21diskmemload10:29:231
1844999130,12cyclictest0-21swapper/112:38:201
1844999130,12cyclictest0-21swapper/110:42:241
1844999130,12cyclictest0-21swapper/109:25:231
1844999130,11cyclictest2291-21diskmemload10:55:071
1844999130,11cyclictest0-21swapper/109:50:191
1844899139,2cyclictest11252-21munin-run11:35:000
1844899131,10cyclictest2291-21diskmemload11:44:590
18448991310,2cyclictest5004-21ssh10:20:060
18448991310,2cyclictest0-21swapper/011:56:040
18448991310,2cyclictest0-21swapper/010:26:510
18448991310,2cyclictest0-21swapper/009:45:510
18448991310,2cyclictest0-21swapper/009:44:100
1844899130,2cyclictest0-21swapper/011:35:100
1844899130,2cyclictest0-21swapper/009:51:400
1844899130,12cyclictest32312-21copy07:41:040
1844899130,12cyclictest0-21swapper/011:16:500
1844899130,12cyclictest0-21swapper/011:06:100
1844899130,11cyclictest2291-21diskmemload11:21:510
251392120,2sleep00-21swapper/010:40:220
21552120,2sleep30-21swapper/310:50:233
1845199129,2cyclictest0-21swapper/312:32:023
1845199129,2cyclictest0-21swapper/311:30:553
1845199129,2cyclictest0-21swapper/311:06:483
1845199129,2cyclictest0-21swapper/310:05:133
1845199129,2cyclictest0-21swapper/307:41:003
1845199120,2cyclictest0-21swapper/312:17:423
1845199120,2cyclictest0-21swapper/308:10:143
1845199120,11cyclictest0-21swapper/312:20:253
1845199120,11cyclictest0-21swapper/309:57:253
1845199120,11cyclictest0-21swapper/309:30:373
1845199120,11cyclictest0-21swapper/308:50:163
1845199120,11cyclictest0-21swapper/307:51:043
1845199120,11cyclictest0-21swapper/307:10:163
1845099129,2cyclictest14514-21kworker/u8:308:22:042
1845099129,2cyclictest0-21swapper/207:50:132
1845099122,7cyclictest0-21swapper/208:42:582
1845099121,9cyclictest0-21swapper/207:57:562
1845099120,7cyclictest0-21swapper/211:07:042
1845099120,6cyclictest0-21swapper/209:10:002
1845099120,2cyclictest0-21swapper/210:37:222
1845099120,2cyclictest0-21swapper/207:20:162
1845099120,11cyclictest0-21swapper/211:30:522
1845099120,11cyclictest0-21swapper/209:35:012
1845099120,11cyclictest0-21swapper/208:45:142
1845099120,11cyclictest0-21swapper/208:10:122
1844999129,2cyclictest0-21swapper/112:00:121
1844999129,2cyclictest0-21swapper/111:11:421
1844999129,2cyclictest0-21swapper/110:10:121
1844999129,2cyclictest0-21swapper/109:44:231
1844999129,2cyclictest0-21swapper/108:50:131
1844999129,2cyclictest0-21swapper/107:20:171
1844999123,7cyclictest0-21swapper/111:36:581
1844999122,7cyclictest4562-21gdm-simple-gree09:46:581
1844999122,7cyclictest0-21swapper/108:32:581
1844999120,2cyclictest2291-21diskmemload10:35:041
1844999120,2cyclictest0-21swapper/109:10:241
1844999120,11cyclictest0-21swapper/112:24:221
1844999120,11cyclictest0-21swapper/112:15:101
1844999120,11cyclictest0-21swapper/111:52:001
1844999120,11cyclictest0-21swapper/111:40:121
1844999120,11cyclictest0-21swapper/111:15:261
1844999120,11cyclictest0-21swapper/110:05:101
1844999120,11cyclictest0-21swapper/109:30:041
1844999120,10cyclictest0-21swapper/112:10:201
1844899129,2cyclictest0-21swapper/012:30:090
1844899129,2cyclictest0-21swapper/010:05:300
1844899129,2cyclictest0-21swapper/008:21:010
1844899129,2cyclictest0-21swapper/007:46:010
1844899127,3cyclictest19288-21grep08:30:130
1844899122,6cyclictest0-21swapper/008:55:000
1844899122,6cyclictest0-21swapper/008:30:010
1844899122,6cyclictest0-21swapper/007:51:020
1844899120,2cyclictest0-21swapper/011:50:180
1844899120,2cyclictest0-21swapper/011:00:130
1844899120,2cyclictest0-21swapper/010:10:130
1844899120,2cyclictest0-21swapper/009:31:120
1844899120,11cyclictest0-21swapper/012:13:210
1844899120,11cyclictest0-21swapper/010:36:230
1844899120,11cyclictest0-21swapper/008:15:120
1844899120,11cyclictest0-21swapper/007:10:500
1845199118,2cyclictest0-21swapper/311:58:353
1845199112,5cyclictest0-21swapper/307:20:003
1845199111,6cyclictest0-21swapper/308:46:023
1845199110,10cyclictest8573-21copy08:05:023
1845199110,10cyclictest0-21swapper/309:06:033
1845199110,10cyclictest0-21swapper/308:20:543
1845199110,10cyclictest0-21swapper/307:32:553
1845199110,10cyclictest0-21swapper/307:32:543
1845099118,2cyclictest6306-21kworker/u8:208:15:042
1845099118,2cyclictest22429-21kworker/u8:108:02:042
1845099118,2cyclictest0-21swapper/208:30:382
1845099118,2cyclictest0-21swapper/207:10:162
1845099116,3cyclictest0-21swapper/209:26:082
1844999118,2cyclictest0-21swapper/111:06:011
1844999118,2cyclictest0-21swapper/108:00:141
1844999112,6cyclictest0-21swapper/107:18:581
1844999111,8cyclictest29369-21smartctl07:35:131
1844999111,8cyclictest29369-21smartctl07:35:121
1844999111,8cyclictest24902-21apt-get08:45:121
1844999110,2cyclictest0-21swapper/111:24:201
1844899118,2cyclictest0-21swapper/009:10:460
1844899118,2cyclictest0-21swapper/009:00:150
1844899118,2cyclictest0-21swapper/007:15:190
1844899112,5cyclictest0-21swapper/008:56:000
1844899112,5cyclictest0-21swapper/008:15:000
1844899111,6cyclictest0-21swapper/009:08:100
1844899110,2cyclictest0-21swapper/008:05:180
1844899110,1cyclictest0-21swapper/008:41:030
1845199102,6cyclictest0-21swapper/308:40:013
1845199102,5cyclictest0-21swapper/309:01:593
1845199100,9cyclictest0-21swapper/308:58:543
1845099107,2cyclictest28442-21kworker/u8:308:52:042
1845099107,2cyclictest21872-21kworker/u8:208:55:042
1845099105,3cyclictest20961-21grep07:15:132
1845099102,6cyclictest29341-21kworker/2:007:40:112
1845099102,6cyclictest0-21swapper/207:47:582
1844999107,2cyclictest15410-21hddtemp_smartct08:20:141
1844999107,2cyclictest0-21swapper/108:15:131
1844999106,2cyclictest0-21swapper/108:40:011
1844999102,7cyclictest0-21swapper/108:44:581
1844999101,7cyclictest2949-21diskstats07:50:141
1844999101,2cyclictest0-21swapper/107:30:141
1844999101,2cyclictest0-21swapper/107:30:141
1844999100,8cyclictest0-21swapper/107:25:141
1844999100,7cyclictest4556-21metacity08:07:581
1844999100,7cyclictest0-21swapper/108:58:581
1844999100,7cyclictest0-21swapper/107:59:581
1844999100,2cyclictest0-21swapper/108:10:111
1844899105,3cyclictest27020-21tr07:30:140
1844899105,3cyclictest27020-21tr07:30:140
1844899100,7cyclictest0-21swapper/007:37:580
1844899100,7cyclictest0-21swapper/007:37:580
1844899100,4cyclictest0-211181066.95835915:50:390
184519996,2cyclictest0-21swapper/307:58:553
184519994,3cyclictest21240-21df_abs08:35:153
184519994,3cyclictest19034-21cpu08:30:113
184519994,3cyclictest0-21swapper/308:25:133
184519992,4cyclictest0-21swapper/308:15:583
184509994,3cyclictest26773-21head07:30:132
184509994,3cyclictest26773-21head07:30:132
184489994,3cyclictest7445-21cut08:00:160
184489994,3cyclictest24254-21chrt07:22:010
184489994,3cyclictest20957-21aten2.4-expect08:35:130
184489983,3cyclictest24897-21chrt08:45:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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