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2026-04-07 - 14:56

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 all highest latencies:
System rack3slot6s.osadl.org (updated Tue Apr 07, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16731211897,16sleep00-21swapper/007:06:430
16840211696,15sleep20-21swapper/207:08:092
16270211696,15sleep10-21swapper/107:05:521
167072115104,6sleep30-21swapper/307:06:263
189062750,0sleep30-21swapper/311:41:373
1701699360,18cyclictest0-21swapper/309:25:123
1701699288,2cyclictest0-21swapper/312:20:123
1701599260,24cyclictest0-21swapper/208:25:122
1701499240,16cyclictest0-21swapper/109:25:121
1701699220,17cyclictest0-21swapper/312:36:043
17016992117,2cyclictest8109-21kworker/u8:012:05:053
1701599210,2cyclictest0-21swapper/209:45:122
17015992016,2cyclictest0-21swapper/209:50:122
1701599201,2cyclictest0-21swapper/212:20:122
1701499200,18cyclictest0-21swapper/111:55:121
17013992017,2cyclictest0-21swapper/009:50:110
17016991916,2cyclictest10527-21kworker/u8:011:03:043
17016991915,2cyclictest4701-21kworker/u8:210:57:043
17016991912,2cyclictest0-21swapper/311:19:053
17016991815,2cyclictest3918-21kworker/u8:309:49:043
17016991815,2cyclictest29292-21kworker/u8:311:32:063
1701699181,15cyclictest0-21swapper/309:11:013
17015991815,2cyclictest4701-21kworker/u8:211:10:052
17015991815,2cyclictest32129-21kworker/u8:111:20:062
17015991815,2cyclictest29292-21kworker/u8:311:26:042
17015991815,2cyclictest16521-21kworker/u8:111:41:042
1701599181,2cyclictest29-21rcuc/209:36:012
1701599180,16cyclictest0-21swapper/210:12:042
1701599180,13cyclictest0-21swapper/212:03:042
17016991714,2cyclictest23163-21kworker/u8:011:13:043
17015991714,2cyclictest9832-21kworker/u8:111:33:052
17015991714,2cyclictest8676-21kworker/u8:007:19:042
17015991714,2cyclictest6980-21kworker/u8:008:11:052
17015991714,2cyclictest4087-21kworker/u8:210:22:052
17015991714,2cyclictest25974-21kworker/u8:010:35:042
17015991714,2cyclictest25974-21kworker/u8:010:16:052
1701599170,12cyclictest0-21swapper/209:25:052
1701399171,14cyclictest10767-21ssh12:06:590
320582160,0sleep20-21swapper/209:41:032
1701699161,3cyclictest5573-21diskstats08:00:143
17016991613,2cyclictest3918-21kworker/u8:310:01:053
17016991613,2cyclictest25650-21kworker/u8:209:23:043
17016991613,2cyclictest24697-21kworker/u8:211:58:023
17016991613,2cyclictest12492-21kworker/u8:210:09:043
17016991612,2cyclictest29292-21kworker/u8:311:39:043
1701699161,13cyclictest19787-21df08:35:143
17015991613,2cyclictest8930-21kworker/u8:009:56:052
17015991613,2cyclictest6980-21kworker/u8:008:18:042
17015991613,2cyclictest4632-21kworker/u8:012:35:052
17015991613,2cyclictest25949-21kworker/u8:010:48:042
17015991613,2cyclictest25650-21kworker/u8:209:14:042
17015991613,2cyclictest23373-21kworker/u8:107:29:042
17015991613,2cyclictest1394-21kworker/u8:109:19:052
1701599160,15cyclictest0-21swapper/210:28:012
1701499161,13cyclictest21091-21diskstats09:30:131
1701399161,3cyclictest10255-21ssh11:33:090
148592160,0sleep00-21swapper/009:23:570
293962150,0sleep00-21swapper/009:00:000
1701699151,2cyclictest27079-21ssh09:36:023
17016991512,2cyclictest8930-21kworker/u8:009:58:053
17016991512,2cyclictest8676-21kworker/u8:007:48:023
17016991512,2cyclictest4087-21kworker/u8:210:47:043
17016991512,2cyclictest32129-21kworker/u8:110:53:053
17016991512,2cyclictest17542-21kworker/u8:108:42:013
17016991512,2cyclictest12460-21kworker/u8:009:44:013
1701699151,12cyclictest0-21swapper/311:28:553
17016991511,2cyclictest0-21swapper/307:26:013
1701699150,3cyclictest0-21swapper/311:05:143
1701699150,13cyclictest898-21diskmemload12:27:003
1701699150,13cyclictest898-21diskmemload12:03:403
1701699150,13cyclictest0-21swapper/310:25:113
17015991512,2cyclictest4701-21kworker/u8:210:55:052
17015991512,2cyclictest25650-21kworker/u8:209:20:042
17015991512,2cyclictest25650-21kworker/u8:208:59:042
17015991512,2cyclictest23373-21kworker/u8:108:07:042
17015991512,2cyclictest23373-21kworker/u8:107:43:042
17015991512,2cyclictest20909-21kworker/u8:207:21:052
1701599150,11cyclictest0-21swapper/208:47:042
1701599150,10cyclictest0-21swapper/211:37:042
1701599150,10cyclictest0-21swapper/210:52:012
1701499151,12cyclictest0-21swapper/109:40:251
1701399151,3cyclictest31047-21irqstats09:40:170
1701399151,12cyclictest8753-21ssh09:16:580
17013991510,3cyclictest4948-21apt08:00:000
17013991510,3cyclictest0-21swapper/008:45:130
1701399150,13cyclictest0-21swapper/011:21:030
1701399150,13cyclictest0-21swapper/007:30:010
17016991411,2cyclictest8676-21kworker/u8:007:12:023
17016991411,2cyclictest6980-21kworker/u8:008:23:053
17016991411,2cyclictest4087-21kworker/u8:210:40:053
17016991411,2cyclictest25974-21kworker/u8:010:21:043
17016991411,2cyclictest25974-21kworker/u8:010:13:043
17016991411,2cyclictest16521-21kworker/u8:111:47:043
17016991410,2cyclictest0-21swapper/307:15:043
1701699140,9cyclictest0-21swapper/309:15:043
1701699140,3cyclictest7763-21hostname09:50:123
1701699140,2cyclictest0-21swapper/309:30:003
1701699140,12cyclictest0-21swapper/312:30:143
1701699140,12cyclictest0-21swapper/311:50:113
1701599141,2cyclictest27387-21apt-get07:35:112
17015991411,2cyclictest8676-21kworker/u8:007:49:052
17015991411,2cyclictest8676-21kworker/u8:007:32:042
17015991411,2cyclictest4116-21kworker/u8:208:03:052
17015991411,2cyclictest25650-21kworker/u8:209:06:042
1701599140,3cyclictest13003-21munin-node2
1701599140,2cyclictest0-21swapper/212:29:042
1701599140,12cyclictest0-21swapper/211:15:042
1701499149,3cyclictest0-21swapper/111:18:141
1701499143,9cyclictest14496-21fschecks_time10:30:141
1701499142,7cyclictest0-21swapper/108:00:001
1701499142,6cyclictest0-21swapper/112:20:001
1701499140,3cyclictest9660-21vmstat09:51:041
1701499140,12cyclictest8479-21sh12:38:551
17013991411,2cyclictest0-21swapper/011:38:100
17013991411,2cyclictest0-21swapper/011:17:080
1701399140,2cyclictest0-21swapper/011:53:420
1701399140,2cyclictest0-21swapper/010:27:350
1701399140,2cyclictest0-21swapper/010:01:000
1701399140,2cyclictest0-21swapper/009:33:590
1701399140,2cyclictest0-21swapper/008:02:510
1701399140,13cyclictest0-21swapper/011:12:590
1701399140,13cyclictest0-21swapper/008:50:190
1701399140,12cyclictest898-21diskmemload09:36:010
1701399140,12cyclictest2506-21chrt09:10:340
1701399140,12cyclictest0-21swapper/011:42:530
203892130,2sleep020399-21ssh12:17:010
17016991310,2cyclictest4087-21kworker/u8:210:31:043
17016991310,2cyclictest19309-21kworker/u8:212:17:043
17016991310,2cyclictest17542-21kworker/u8:109:01:053
17016991310,2cyclictest0-21swapper/310:16:413
1701699130,12cyclictest0-21swapper/308:05:133
1701699130,11cyclictest21145-21ssh10:36:443
1701699130,11cyclictest0-21swapper/312:12:323
1701699130,11cyclictest0-21swapper/308:30:133
1701599133,2cyclictest0-21swapper/212:16:042
17015991310,2cyclictest4701-21kworker/u8:211:06:052
17015991310,2cyclictest4116-21kworker/u8:208:20:042
17015991310,2cyclictest19309-21kworker/u8:212:30:052
17015991310,2cyclictest17542-21kworker/u8:108:41:042
17015991310,2cyclictest12492-21kworker/u8:210:06:052
17015991310,2cyclictest0-21swapper/211:00:052
17015991310,2cyclictest0-21swapper/209:30:302
1701599130,2cyclictest898-21diskmemload10:00:152
1701599130,2cyclictest17266-21copy08:30:042
1701599130,2cyclictest0-21swapper/207:56:002
1701599130,12cyclictest0-21swapper/211:55:162
1701499138,3cyclictest3141-21grep09:11:021
1701499138,3cyclictest207150irq/24-eth112:29:591
1701499134,7cyclictest0-21swapper/109:36:011
1701499132,6cyclictest0-21swapper/108:25:011
1701499132,6cyclictest0-21swapper/107:20:001
1701499131,10cyclictest16382-21sh12:13:171
1701499131,10cyclictest0-21swapper/110:16:041
17014991310,2cyclictest0-21swapper/110:55:181
17014991310,2cyclictest0-21swapper/110:40:171
1701499130,3cyclictest2012-21cut07:50:391
1701499130,2cyclictest32505-21ps09:05:161
1701499130,2cyclictest0-21swapper/109:55:171
1701499130,2cyclictest0-21swapper/109:00:171
1701499130,11cyclictest898-21diskmemload12:31:541
1701499130,11cyclictest898-21diskmemload09:46:121
1701499130,11cyclictest10340-21ssh10:25:301
1701499130,11cyclictest0-21swapper/111:32:451
1701499130,11cyclictest0-21swapper/110:35:301
1701499130,11cyclictest0-21swapper/110:00:281
1701399132,6cyclictest0-21swapper/007:55:010
1701399131,2cyclictest2369-21apt-get09:45:040
17013991310,2cyclictest25342-21apt-get07:30:110
17013991310,2cyclictest0-21swapper/012:25:260
17013991310,2cyclictest0-21swapper/012:21:370
17013991310,2cyclictest0-21swapper/012:10:390
17013991310,2cyclictest0-21swapper/011:46:000
17013991310,2cyclictest0-21swapper/011:01:090
17013991310,2cyclictest0-21swapper/010:37:380
1701399130,2cyclictest0-21swapper/011:07:280
1701399130,2cyclictest0-21swapper/010:59:180
1701399130,2cyclictest0-21swapper/010:17:230
1701399130,2cyclictest0-21swapper/009:55:010
1701399130,2cyclictest0-21swapper/008:35:060
1701399130,2cyclictest0-21swapper/007:20:110
1701399130,12cyclictest0-21swapper/012:38:000
1701399130,12cyclictest0-21swapper/011:59:390
1701399130,12cyclictest0-21swapper/011:28:180
1701399130,12cyclictest0-21swapper/010:48:590
1701399130,12cyclictest0-21swapper/010:33:290
1701399130,12cyclictest0-21swapper/009:25:280
1701399130,12cyclictest0-21swapper/007:10:290
1701399130,11cyclictest0-21swapper/012:00:120
1701699129,2cyclictest8676-21kworker/u8:007:53:043
1701699129,2cyclictest8676-21kworker/u8:007:20:053
1701699129,2cyclictest6980-21kworker/u8:008:15:043
1701699129,2cyclictest4116-21kworker/u8:207:56:053
1701699129,2cyclictest25650-21kworker/u8:208:58:013
1701699129,2cyclictest0-21swapper/309:05:153
1701699120,2cyclictest0-21swapper/311:21:043
1701699120,2cyclictest0-21swapper/308:11:383
1701699120,2cyclictest0-21swapper/307:35:013
1701699120,11cyclictest0-21swapper/308:25:133
1701599129,2cyclictest25650-21kworker/u8:209:00:052
1701599129,2cyclictest17542-21kworker/u8:108:53:052
1701599122,7cyclictest0-21swapper/207:51:582
1701599120,2cyclictest0-21swapper/212:09:042
1701599120,11cyclictest27751-21ssh11:51:022
1701599120,10cyclictest0-21swapper/211:45:302
1701599120,10cyclictest0-21swapper/210:40:092
1701499129,2cyclictest898-21diskmemload11:47:091
1701499129,2cyclictest207150irq/24-eth110:21:141
1701499129,2cyclictest0-21swapper/111:40:141
1701499129,2cyclictest0-21swapper/111:29:181
1701499129,2cyclictest0-21swapper/110:50:111
1701499127,3cyclictest11393-21needreboot11:00:171
1701499122,6cyclictest0-21swapper/109:16:011
1701499121,9cyclictest8545-21sed12:05:121
1701499121,6cyclictest0-21swapper/108:15:011
1701499121,5cyclictest0-21swapper/107:40:001
1701499120,3cyclictest0-21swapper/108:35:131
1701499120,2cyclictest0-21swapper/112:21:451
1701499120,2cyclictest0-21swapper/111:21:141
1701499120,11cyclictest898-21diskmemload10:10:131
1701499120,11cyclictest0-21swapper/110:05:141
1701499120,10cyclictest0-21swapper/111:11:231
1701399129,2cyclictest898-21diskmemload10:21:370
1701399129,2cyclictest0-21swapper/010:05:140
1701399122,7cyclictest0-21swapper/008:26:590
1701399120,2cyclictest0-21swapper/010:10:000
1701399120,11cyclictest0-21swapper/012:30:120
1701399120,11cyclictest0-21swapper/010:50:030
1701399120,11cyclictest0-21swapper/010:40:120
1701399120,11cyclictest0-21swapper/009:05:160
1701399120,11cyclictest0-21swapper/007:15:160
138702120,2sleep20-21swapper/210:30:062
1701699118,2cyclictest6980-21kworker/u8:008:45:053
1701699110,9cyclictest0-21swapper/308:50:153
1701599110,9cyclictest0-21swapper/208:35:052
1701499118,2cyclictest0-21swapper/111:51:011
1701499118,2cyclictest0-21swapper/111:35:361
1701499118,2cyclictest0-21swapper/111:05:181
1701499112,6cyclictest0-21swapper/108:57:581
1701499111,8cyclictest3728-21runrttasks08:30:581
1701499111,8cyclictest31422-21munin-node1
1701499111,8cyclictest0-21swapper/108:02:371
1701499111,6cyclictest27154-21apt-get07:35:001
1701499110,9cyclictest0-21swapper/108:15:201
1701499110,9cyclictest0-21swapper/107:36:021
1701499110,9cyclictest0-21swapper/107:21:021
1701499110,3cyclictest8192-21needreboot08:05:181
1701499110,3cyclictest28887-21tune2fs10:45:151
1701499110,3cyclictest23513-21munin-node1
1701499110,3cyclictest0-21swapper/107:11:031
1701499110,10cyclictest0-21swapper/112:02:301
1701399110,10cyclictest0-21swapper/009:01:040
1701399110,10cyclictest0-21swapper/008:31:010
1701699107,2cyclictest8676-21kworker/u8:007:33:053
1701699105,3cyclictest29416-21apt07:40:123
1701499107,2cyclictest0-21swapper/108:40:381
1701499106,2cyclictest0-21swapper/108:20:181
1701499105,3cyclictest11330-21cpuspeed_turbos09:20:131
1701499103,5cyclictest0-21swapper/108:53:281
1701499100,2cyclictest0-21swapper/107:25:131
1701399107,2cyclictest0-21swapper/007:35:160
1701399100,8cyclictest30409-21pzem_current07:40:180
170139996,2cyclictest0-21swapper/007:48:380
170139995,3cyclictest3443-21NetworkManager08:07:410
170139994,3cyclictest22309-21missed_timers08:40:160
170139994,3cyclictest10475-21sendmail_mailtr08:11:000
170139994,3cyclictest0-21swapper/008:15:140
170159983,3cyclictest17517-21cpuspeed_turbos07:10:132
170139983,3cyclictest13904-21fschecks_time08:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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