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2026-05-20 - 23:32

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 highest latencies:
System rack3slot6s.osadl.org (updated Wed May 20, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232742123100,18sleep00-21swapper/007:05:230
23276212099,16sleep20-21swapper/207:05:262
23959211795,16sleep30-21swapper/307:08:513
23806210887,16sleep10-21swapper/107:06:531
286912800,0sleep10-21swapper/110:37:461
174332770,6sleep30-21swapper/310:25:543
174332770,6sleep30-21swapper/310:25:543
268632650,0sleep30-21swapper/310:02:133
168362650,0sleep00-21swapper/010:59:370
152932260,0sleep10-21swapper/110:24:271
2407799221,19cyclictest207150irq/24-eth109:20:091
2407999210,19cyclictest17942-21ssh09:20:103
24077992116,3cyclictest1704-21latency_hist07:35:011
2407799210,2cyclictest0-21swapper/108:45:111
2407699210,19cyclictest0-21swapper/008:20:100
301192200,1sleep00-21swapper/010:05:260
2407999200,2cyclictest0-21swapper/310:15:113
24079991913,4cyclictest25712-21ssh11:41:053
24078991916,2cyclictest6316-21kworker/u8:209:24:052
2407799191,16cyclictest27582-21ssh09:30:121
2407799190,2cyclictest0-21swapper/110:15:111
2407999180,16cyclictest0-21swapper/307:25:113
2407799180,16cyclictest0-21swapper/107:25:121
195122180,0sleep20-21swapper/211:01:162
2407999170,15cyclictest0-21swapper/308:19:593
24078991714,2cyclictest7250-21kworker/u8:107:11:052
24078991714,2cyclictest20828-21kworker/u8:011:10:062
24078991714,2cyclictest11271-21kworker/u8:110:30:062
24078991713,2cyclictest0-21swapper/212:10:112
2407799171,3cyclictest32418-21users10:41:031
2407699172,13cyclictest24157-21grep11:06:050
188012170,0sleep30-21swapper/309:54:433
119852170,0sleep30-21swapper/309:46:333
2407899160,2cyclictest0-21swapper/210:48:052
2407799161,13cyclictest7950-21diskmemload11:40:191
2407799161,13cyclictest0-21swapper/110:25:151
2407799161,13cyclictest0-21swapper/110:25:151
24077991611,3cyclictest0-21swapper/108:20:111
2407699160,2cyclictest0-21swapper/012:37:040
24079991512,2cyclictest0-21swapper/311:00:143
24078991512,2cyclictest32441-21kworker/u8:207:49:052
24078991512,2cyclictest28687-21kworker/u8:011:50:022
24078991512,2cyclictest18304-21kworker/u8:007:16:002
2407899151,13cyclictest22081-21apt-get08:25:052
2407899151,12cyclictest0-21swapper/207:20:162
24078991510,3cyclictest7101-21ps09:05:182
24078991510,3cyclictest0-21swapper/211:44:552
2407899150,2cyclictest0-21swapper/211:24:052
2407899150,2cyclictest0-21swapper/210:26:062
2407899150,2cyclictest0-21swapper/210:26:062
2407899150,13cyclictest0-21swapper/212:24:042
2407799151,3cyclictest0-21swapper/108:35:271
24077991512,2cyclictest207150irq/24-eth110:56:471
24077991510,3cyclictest26947-21ssh11:10:021
24077991510,3cyclictest0-21swapper/109:35:471
2407799150,14cyclictest0-21swapper/111:30:521
24076991512,2cyclictest0-21swapper/012:10:100
300232140,1sleep30-21swapper/310:05:173
2407999141,3cyclictest20132-21memory09:55:153
2407999140,12cyclictest7950-21diskmemload12:25:043
2407999140,12cyclictest0-21swapper/312:20:113
2407999140,12cyclictest0-21swapper/311:24:043
2407999140,12cyclictest0-21swapper/310:20:133
2407999140,12cyclictest0-21swapper/309:30:113
2407899141,3cyclictest12007-21ssh10:54:352
2407899141,3cyclictest0-21swapper/212:18:382
24078991411,2cyclictest10169-21kworker/u8:009:52:052
24078991411,2cyclictest0-21swapper/211:16:552
2407899141,11cyclictest7950-21diskmemload10:20:362
24078991410,2cyclictest18896-21apt-get11:35:122
2407899140,2cyclictest0-21swapper/212:00:062
2407899140,13cyclictest0-21swapper/210:42:242
2407899140,12cyclictest0-21swapper/212:30:582
2407899140,12cyclictest0-21swapper/210:55:172
2407899140,12cyclictest0-21swapper/210:05:592
2407799149,3cyclictest0-21swapper/111:57:001
2407799142,7cyclictest0-21swapper/111:00:011
2407799142,7cyclictest0-21swapper/107:55:011
2407799142,6cyclictest0-21swapper/107:10:011
2407799141,2cyclictest6268-21runrttasks10:48:071
24077991411,2cyclictest0-21swapper/112:28:331
24077991411,2cyclictest0-21swapper/112:13:191
24077991410,3cyclictest0-21swapper/111:51:121
24077991410,2cyclictest7950-21diskmemload12:20:111
2407799140,5cyclictest0-21swapper/112:30:461
2407799140,2cyclictest0-21swapper/109:59:231
2407799140,12cyclictest238992chrt09:25:271
2407799140,12cyclictest11122-21sh09:45:491
2407799140,12cyclictest0-21swapper/112:08:001
2407799140,12cyclictest0-21swapper/109:15:281
2407699140,2cyclictest30876-21runrttasks11:13:560
2407699140,12cyclictest0-21swapper/012:20:130
2407699140,12cyclictest0-21swapper/011:30:180
92512130,2sleep10-21swapper/109:44:481
2407999133,6cyclictest0-21swapper/308:46:013
24079991310,2cyclictest0-21swapper/312:36:143
2407999130,2cyclictest0-21swapper/312:11:353
2407999130,2cyclictest0-21swapper/311:57:433
2407999130,2cyclictest0-21swapper/309:41:343
2407999130,12cyclictest0-21swapper/312:33:053
2407999130,12cyclictest0-21swapper/310:45:163
2407999130,11cyclictest32308-21ssh09:35:053
2407899139,2cyclictest10078-21ssh11:25:172
24078991310,2cyclictest29960-21kworker/u8:007:26:062
24078991310,2cyclictest29030-21kworker/u8:108:50:052
24078991310,2cyclictest25234-21ssh10:00:202
24078991310,2cyclictest24099-21ssh11:06:042
24078991310,2cyclictest16178-21kworker/u8:208:37:052
24078991310,2cyclictest0-21swapper/211:55:182
24078991310,2cyclictest0-21swapper/211:45:082
24078991310,2cyclictest0-21swapper/210:39:062
24078991310,2cyclictest0-21swapper/209:40:052
24078991310,2cyclictest0-21swapper/209:10:482
2407899130,2cyclictest4687-21ssh10:12:572
2407899130,2cyclictest0-21swapper/209:35:422
2407899130,12cyclictest13084-21ssh09:48:162
2407899130,12cyclictest0-21swapper/209:56:242
2407899130,12cyclictest0-21swapper/209:30:342
2407899130,11cyclictest1242-21timerwakeupswit07:31:032
2407799139,3cyclictest0-21swapper/110:34:481
2407799132,6cyclictest0-21swapper/108:20:001
24077991310,2cyclictest0-21swapper/112:01:071
24077991310,2cyclictest0-21swapper/111:15:091
24077991310,2cyclictest0-21swapper/110:50:281
24077991310,2cyclictest0-21swapper/108:10:191
2407799130,2cyclictest0-21swapper/111:46:291
2407799130,2cyclictest0-21swapper/110:07:111
2407799130,12cyclictest0-21swapper/112:19:221
2407799130,12cyclictest0-21swapper/111:25:501
2407799130,12cyclictest0-21swapper/111:05:291
2407799130,12cyclictest0-21swapper/109:11:231
2407799130,12cyclictest0-21swapper/108:55:181
2407799130,12cyclictest0-21swapper/107:20:111
2407799130,11cyclictest0-21swapper/107:45:501
2407699139,2cyclictest11893-21kernelversion10:20:170
24076991310,2cyclictest18262-21apt-get08:15:120
24076991310,2cyclictest0-21swapper/010:50:190
24076991310,2cyclictest0-21swapper/007:25:150
2407699130,2cyclictest0-21swapper/012:17:170
2407699130,2cyclictest0-21swapper/011:50:270
2407699130,11cyclictest4589-21diskstats07:40:130
6792120,1sleep00-21swapper/010:42:110
2407999129,2cyclictest0-21swapper/312:06:053
2407999129,2cyclictest0-21swapper/311:30:033
2407999129,2cyclictest0-21swapper/310:50:173
2407999129,2cyclictest0-21swapper/309:26:233
2407999122,6cyclictest0-21swapper/308:21:003
2407999120,2cyclictest0-21swapper/312:04:043
2407999120,2cyclictest0-21swapper/311:50:103
2407999120,2cyclictest0-21swapper/311:17:053
2407999120,2cyclictest0-21swapper/311:08:433
2407999120,2cyclictest0-21swapper/309:15:243
2407999120,2cyclictest0-21swapper/308:30:193
2407999120,11cyclictest7950-21diskmemload09:12:233
2407999120,11cyclictest0-21swapper/311:46:043
2407999120,11cyclictest0-21swapper/310:57:043
2407999120,11cyclictest0-21swapper/310:37:443
2407999120,11cyclictest0-21swapper/310:31:143
2407999120,11cyclictest0-21swapper/310:11:043
2407999120,11cyclictest0-21swapper/309:00:143
2407999120,10cyclictest7950-21diskmemload11:26:063
2407999120,10cyclictest0-21swapper/308:00:113
2407899129,2cyclictest3672-21kworker/u8:008:59:042
2407899129,2cyclictest0-21swapper/212:05:152
2407899120,7cyclictest0-21swapper/207:41:032
2407899120,2cyclictest0-21swapper/209:15:382
2407899120,11cyclictest0-21swapper/212:37:062
2407899120,11cyclictest0-21swapper/212:26:482
2407899120,11cyclictest0-21swapper/211:31:272
2407899120,11cyclictest0-21swapper/210:17:092
2407899120,11cyclictest0-21swapper/209:25:372
2407899120,11cyclictest0-21swapper/208:45:172
2407799129,2cyclictest0-21swapper/109:50:181
2407799127,3cyclictest207150irq/24-eth111:35:111
2407799127,3cyclictest0-21swapper/108:00:151
2407799121,9cyclictest15635-21cat08:06:021
2407799121,9cyclictest0-21swapper/108:25:171
2407799121,3cyclictest4090-21munin-node1
2407799121,3cyclictest4053-21cat07:40:011
2407799121,3cyclictest0-21swapper/112:35:141
2407799121,3cyclictest0-21swapper/110:10:151
2407799120,2cyclictest0-21swapper/110:03:171
2407799120,2cyclictest0-21swapper/108:50:191
2407799120,11cyclictest0-21swapper/111:20:151
2407799120,11cyclictest0-21swapper/107:55:181
2407699129,2cyclictest0-21swapper/011:16:060
2407699129,2cyclictest0-21swapper/010:45:590
2407699129,2cyclictest0-21swapper/010:20:000
2407699129,2cyclictest0-21swapper/009:51:020
2407699129,2cyclictest0-21swapper/009:40:160
2407699129,2cyclictest0-21swapper/009:10:060
2407699120,2cyclictest25647-21ssh10:35:100
2407699120,2cyclictest0-21swapper/012:07:210
2407699120,2cyclictest0-21swapper/012:00:250
2407699120,2cyclictest0-21swapper/011:58:440
2407699120,2cyclictest0-21swapper/011:37:230
2407699120,2cyclictest0-21swapper/011:01:460
2407699120,2cyclictest0-21swapper/010:31:350
2407699120,2cyclictest0-21swapper/009:46:030
2407699120,2cyclictest0-21swapper/009:31:450
2407699120,2cyclictest0-21swapper/009:21:050
2407699120,11cyclictest7950-21diskmemload10:26:030
2407699120,11cyclictest7950-21diskmemload10:26:030
2407699120,11cyclictest0-21swapper/011:40:460
2407699120,11cyclictest0-21swapper/009:55:250
2407699120,11cyclictest0-21swapper/009:25:110
2407699120,11cyclictest0-21swapper/009:17:100
2407699120,11cyclictest0-21swapper/008:00:120
2407699120,10cyclictest0-21swapper/009:37:390
133082120,2sleep20-21swapper/208:00:182
2407999118,2cyclictest0-21swapper/307:50:113
2407999118,2cyclictest0-21swapper/307:40:163
2407999112,6cyclictest26676-21ssh12:16:003
2407999110,10cyclictest0-21swapper/311:36:463
2407899118,2cyclictest29030-21kworker/u8:109:04:052
2407899112,7cyclictest0-21swapper/208:42:592
2407899112,7cyclictest0-21swapper/208:32:582
2407899112,7cyclictest0-21swapper/208:18:592
2407899112,7cyclictest0-21swapper/207:37:592
2407899111,6cyclictest0-21swapper/208:15:002
2407799111,2cyclictest28775-21diskstats08:40:141
2407799110,9cyclictest0-21swapper/107:16:011
2407799110,3cyclictest4043-21munin-node1
2407799110,3cyclictest0-21swapper/108:30:141
2407699118,2cyclictest10832-21ssh12:33:410
2407699118,2cyclictest0-21swapper/011:25:400
2407699118,2cyclictest0-21swapper/010:00:060
2407699118,2cyclictest0-21swapper/009:05:130
2407699114,2cyclictest274-21jbd2/sda1-808:34:590
2407699110,9cyclictest0-21swapper/012:25:340
2407699110,2cyclictest0-21swapper/011:47:480
2407699110,2cyclictest0-21swapper/010:10:590
2407699110,10cyclictest0-21swapper/011:20:520
114572110,2sleep20-21swapper/207:56:022
2407999107,2cyclictest7950-21diskmemload10:42:053
2407999105,3cyclictest6779-21hddtemp_smartct07:45:153
2407999105,3cyclictest3856-21sendmail07:40:013
2407999105,3cyclictest16204-21latency_hist08:10:003
2407999102,4cyclictest0-21swapper/307:15:013
2407999101,6cyclictest0-21swapper/311:11:023
2407899104,4cyclictest21676-21grep08:21:022
2407899102,6cyclictest0-21swapper/207:53:302
2407799100,8cyclictest6154-21munin-node1
2407699107,2cyclictest0-21swapper/008:10:160
2407699107,2cyclictest0-21swapper/007:20:150
2407699104,2cyclictest0-21swapper/007:56:030
2407699102,6cyclictest0-21swapper/007:51:010
2407699101,7cyclictest25117-21kworker/0:008:25:130
2407699100,8cyclictest0-21swapper/008:40:140
179222100,2sleep30-21swapper/308:13:343
153652100,2sleep20-21swapper/208:05:182
240799995,2cyclictest69292sleep309:05:163
240799994,3cyclictest30171-21latency_hist08:44:593
240799994,3cyclictest2432-21fschecks_time08:55:153
240799994,3cyclictest1375-21unixbench_singl08:51:033
240799994,3cyclictest0-21swapper/307:30:193
240799994,2cyclictest26478-21telnet08:35:103
240799993,3cyclictest32441-21kworker/u8:207:55:133
240769996,2cyclictest0-21swapper/008:45:150
240769996,2cyclictest0-21swapper/008:05:140
240769996,2cyclictest0-21swapper/007:31:020
240769990,7cyclictest0-21swapper/009:01:030
240769990,6cyclictest0-21swapper/008:54:590
240799984,2cyclictest26429-21telnet07:15:133
240799983,3cyclictest28443-21aten2.4_r3power07:20:123
240799980,7cyclictest0-21swapper/308:25:193
240769985,2cyclictest0-21swapper/008:55:140
240769983,3cyclictest4021-21cat07:40:010
240769983,3cyclictest27678-21unixbench_multi07:16:040
240769981,6cyclictest27744-21grep08:36:000
240769980,7cyclictest0-21swapper/007:45:150
240769973,3cyclictest18304-21kworker/u8:007:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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