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2026-05-29 - 01:06

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 Thu May 28, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20300211087,17sleep10-21swapper/107:05:171
20300211087,17sleep10-21swapper/107:05:171
19388211087,18sleep30-21swapper/307:05:033
19388211087,18sleep30-21swapper/307:05:033
21066210880,6sleep00-21swapper/007:08:280
21066210880,6sleep00-21swapper/007:08:270
21141210486,12sleep20-21swapper/207:09:272
21141210486,12sleep20-21swapper/207:09:272
42652750,0sleep00-21swapper/009:41:090
74372690,1sleep27440-21timerandwakeup09:11:012
23072670,1sleep20-21swapper/210:13:342
201992650,0sleep10-21swapper/111:39:231
2121699290,27cyclictest0-21swapper/310:55:113
133192260,1sleep00-21swapper/011:31:080
21215992217,3cyclictest0-21swapper/211:00:102
21215992210,3cyclictest3547-21grep07:45:132
205672220,1sleep00-21swapper/011:39:580
2121699210,19cyclictest0-21swapper/307:30:113
2121599211,2cyclictest0-21swapper/212:10:102
2121599211,2cyclictest0-21swapper/210:05:092
2121599211,18cyclictest0-21swapper/209:34:552
2121499210,19cyclictest0-21swapper/109:55:101
2121399211,2cyclictest17440-21ssh12:10:090
2121599201,12cyclictest25765-21apt-get08:40:112
2121599200,13cyclictest0-21swapper/208:15:112
2121499200,18cyclictest0-21swapper/112:35:101
2121499200,18cyclictest0-21swapper/111:30:111
2121399200,2cyclictest0-21swapper/010:05:100
2121599192,7cyclictest0-21swapper/207:50:022
2121599191,6cyclictest0-21swapper/210:43:212
21214991915,2cyclictest207150irq/24-eth109:45:121
88032180,1sleep10-21swapper/111:26:361
21216991813,3cyclictest11925-21ssh09:50:113
2121599182,7cyclictest0-21swapper/212:09:592
2121599181,6cyclictest0-21swapper/208:46:022
2121599180,12cyclictest0-21swapper/212:23:362
2121599180,11cyclictest18412-21ssh09:22:492
154002180,0sleep10-21swapper/109:53:251
78142170,0sleep10-21swapper/110:19:221
21216991714,2cyclictest27177-21kworker/u8:212:22:023
21216991714,2cyclictest14753-21kworker/u8:109:31:053
2121699170,12cyclictest0-21swapper/312:19:053
2121599172,7cyclictest0-21swapper/208:02:012
2121699161,3cyclictest0-21swapper/309:20:143
21216991613,2cyclictest9601-21kworker/u8:208:11:043
21216991613,2cyclictest5584-21kworker/u8:011:58:043
21216991613,2cyclictest5584-21kworker/u8:011:50:063
21216991613,2cyclictest5584-21kworker/u8:011:34:053
21216991613,2cyclictest5584-21kworker/u8:011:24:043
21216991613,2cyclictest3479-21kworker/u8:009:17:043
21216991613,2cyclictest32189-21kworker/u8:111:38:063
21216991613,2cyclictest32189-21kworker/u8:111:18:063
21216991613,2cyclictest29051-21kworker/u8:110:17:043
21216991613,2cyclictest27766-21kworker/u8:110:53:053
21216991613,2cyclictest27177-21kworker/u8:212:28:053
21216991613,2cyclictest24175-21kworker/u8:010:05:053
21216991613,2cyclictest22514-21kworker/u8:010:44:033
21216991613,2cyclictest18899-21kworker/u8:007:58:043
21216991613,2cyclictest14753-21kworker/u8:109:27:033
2121599163,5cyclictest0-21swapper/208:40:002
2121599163,11cyclictest22960-21rm09:27:242
2121599161,6cyclictest0-21swapper/210:53:232
2121599160,7cyclictest0-21swapper/207:27:592
2121499161,13cyclictest15714-21ntp_states11:00:171
2121399160,14cyclictest0-21swapper/010:15:110
21216991512,2cyclictest32601-21kworker/u8:210:02:043
21216991512,2cyclictest28851-21kworker/u8:208:55:043
21216991512,2cyclictest25624-21kworker/u8:107:23:043
21216991512,2cyclictest17606-21kworker/u8:310:33:053
21216991512,2cyclictest1607-21kworker/u8:112:00:053
21216991512,2cyclictest0-21swapper/309:41:033
21216991510,3cyclictest9921-21ssh12:35:163
2121599151,12cyclictest5362-21diskmemload09:16:362
21215991510,3cyclictest32115-21ssh09:36:422
2121499151,3cyclictest5029-40update-apt-xapi07:47:161
2121499151,3cyclictest0-21swapper/110:25:451
2121499151,12cyclictest24119-21ssh11:42:581
2121499151,12cyclictest0-21swapper/112:22:051
21214991510,3cyclictest467-21sh09:37:591
21214991510,3cyclictest3728-21runrttasks10:42:261
21214991510,3cyclictest0-21swapper/110:45:211
2121499150,13cyclictest0-21swapper/107:25:161
21213991512,2cyclictest31818-21kworker/u8:109:13:040
21213991512,2cyclictest27257-21kworker/u8:011:16:040
21213991512,2cyclictest14753-21kworker/u8:109:34:000
2121699146,6cyclictest0-21swapper/309:01:003
21216991411,2cyclictest3479-21kworker/u8:009:10:013
21216991411,2cyclictest32601-21kworker/u8:209:58:043
21216991411,2cyclictest21026-21kworker/u8:207:15:043
21216991411,2cyclictest12769-21kworker/u8:212:08:043
2121699140,2cyclictest0-21swapper/311:00:103
2121699140,2cyclictest0-21swapper/307:46:533
2121699140,2cyclictest0-21swapper/307:25:123
2121699140,12cyclictest6990-21ssh09:45:033
2121599142,7cyclictest5362-21diskmemload12:05:002
2121599142,7cyclictest0-21swapper/209:10:002
2121599142,7cyclictest0-21swapper/208:35:002
2121599140,3cyclictest0-21swapper/212:17:442
2121599140,2cyclictest4349-21ssh12:30:072
2121599140,2cyclictest0-21swapper/209:45:172
2121599140,12cyclictest2804-21modprobe09:40:152
2121599140,12cyclictest1018-21ssh12:26:022
2121599140,12cyclictest0-21swapper/211:25:112
2121499149,4cyclictest0-21swapper/110:51:391
2121499140,3cyclictest2417-21cut09:00:291
2121499140,12cyclictest5587-21rm09:43:091
2121499140,12cyclictest207150irq/24-eth110:12:581
2121499140,12cyclictest0-21swapper/112:30:171
2121499140,12cyclictest0-21swapper/111:55:271
2121499140,12cyclictest0-21swapper/111:24:001
2121499140,12cyclictest0-21swapper/110:01:171
2121499140,12cyclictest0-21swapper/108:55:391
21213991411,2cyclictest32601-21kworker/u8:210:03:050
21213991411,2cyclictest32189-21kworker/u8:111:46:050
21213991411,2cyclictest27086-21kworker/u8:009:37:040
2121399141,11cyclictest17445-21sh10:29:230
2121399140,3cyclictest14089-21ssh09:18:370
2121399140,12cyclictest21038-21sh10:32:280
2121399140,12cyclictest0-21swapper/012:00:110
65542130,2sleep06720-21ssh11:25:120
224382130,2sleep10-21swapper/109:26:361
21216991310,2cyclictest9601-21kworker/u8:208:35:033
21216991310,2cyclictest2570-21kworker/u8:210:36:043
21216991310,2cyclictest24175-21kworker/u8:010:11:053
21216991310,2cyclictest21026-21kworker/u8:207:12:043
21216991310,2cyclictest19579-21kworker/u8:111:10:043
21216991310,2cyclictest19579-21kworker/u8:111:09:033
21216991310,2cyclictest0-21swapper/310:24:533
2121699130,12cyclictest0-21swapper/310:25:033
21215991310,2cyclictest0-21swapper/210:30:282
21215991310,2cyclictest0-21swapper/208:56:032
2121599130,2cyclictest0-21swapper/211:40:002
2121599130,2cyclictest0-21swapper/211:35:182
2121599130,2cyclictest0-21swapper/210:23:372
2121599130,2cyclictest0-21swapper/207:31:022
2121599130,12cyclictest0-21swapper/209:56:062
2121599130,11cyclictest26697-21ssh10:38:482
2121599130,11cyclictest0-21swapper/211:06:052
2121499138,3cyclictest0-21swapper/111:10:111
2121499132,6cyclictest0-21swapper/110:40:011
2121499132,6cyclictest0-21swapper/107:50:011
2121499131,10cyclictest0-21swapper/109:06:011
21214991310,2cyclictest0-21swapper/112:25:301
21214991310,2cyclictest0-21swapper/112:11:391
21214991310,2cyclictest0-21swapper/112:03:511
21214991310,2cyclictest0-21swapper/110:56:361
21214991310,2cyclictest0-21swapper/110:31:071
21214991310,2cyclictest0-21swapper/109:30:091
2121499130,2cyclictest0-21swapper/108:20:141
2121499130,12cyclictest0-21swapper/111:15:101
2121499130,12cyclictest0-21swapper/109:20:261
2121499130,12cyclictest0-21swapper/109:16:051
2121499130,12cyclictest0-21swapper/109:10:051
2121499130,11cyclictest0-21swapper/111:50:391
2121499130,11cyclictest0-21swapper/111:45:371
2121499130,11cyclictest0-21swapper/110:07:361
2121499130,11cyclictest0-21swapper/108:10:171
2121399138,3cyclictest23877-21ssh10:35:150
2121399134,7cyclictest274-21jbd2/sda1-812:15:130
21213991310,2cyclictest29051-21kworker/u8:110:10:050
21213991310,2cyclictest22514-21kworker/u8:010:52:040
21213991310,2cyclictest0-21swapper/009:45:450
2121399130,2cyclictest0-21swapper/012:32:070
2121399130,12cyclictest0-21swapper/012:21:050
2121399130,12cyclictest0-21swapper/011:51:380
2121399130,12cyclictest0-21swapper/011:06:180
2121399130,12cyclictest0-21swapper/011:01:180
2121399130,11cyclictest11425-21ssh10:55:550
2121399130,11cyclictest0-21swapper/011:55:360
14952130,2sleep00-21swapper/011:20:110
2121699129,2cyclictest5584-21kworker/u8:012:14:053
2121699129,2cyclictest25624-21kworker/u8:107:51:043
2121699129,2cyclictest16293-21kworker/u8:008:21:043
2121699129,2cyclictest0-21swapper/311:41:143
2121699129,2cyclictest0-21swapper/311:28:433
2121699129,2cyclictest0-21swapper/308:25:043
2121699129,2cyclictest0-21swapper/308:15:163
2121699129,2cyclictest0-21swapper/308:00:123
2121699122,7cyclictest0-21swapper/308:41:593
2121599129,2cyclictest0-21swapper/211:47:072
2121599129,2cyclictest0-21swapper/211:33:192
2121599129,2cyclictest0-21swapper/211:11:332
2121599129,2cyclictest0-21swapper/209:50:522
2121599129,2cyclictest0-21swapper/208:20:172
2121599129,2cyclictest0-21swapper/207:35:592
2121599123,6cyclictest0-21swapper/207:42:452
2121599121,7cyclictest0-21swapper/210:16:012
2121599120,2cyclictest0-21swapper/212:35:132
2121599120,2cyclictest0-21swapper/210:57:552
2121599120,2cyclictest0-21swapper/210:00:422
2121599120,2cyclictest0-21swapper/208:26:002
2121599120,11cyclictest5362-21diskmemload11:20:012
2121599120,11cyclictest0-21swapper/211:53:402
2121599120,11cyclictest0-21swapper/211:16:332
2121599120,11cyclictest0-21swapper/210:46:012
2121599120,11cyclictest0-21swapper/210:25:062
2121599120,11cyclictest0-21swapper/208:50:052
2121599120,11cyclictest0-21swapper/207:10:122
2121599120,10cyclictest0-21swapper/211:55:282
2121499129,2cyclictest0-21swapper/112:15:121
2121499129,2cyclictest0-21swapper/108:50:021
2121499128,2cyclictest0-21swapper/108:35:131
2121499128,2cyclictest0-21swapper/108:01:011
2121499127,3cyclictest0-21swapper/107:15:171
2121499122,7cyclictest0-21swapper/107:41:591
2121499122,6cyclictest0-21swapper/110:20:011
2121499122,6cyclictest0-21swapper/108:00:011
2121499121,9cyclictest31545-21munin-node1
2121499121,3cyclictest0-21swapper/108:25:121
2121499121,3cyclictest0-21swapper/107:30:111
2121499120,9cyclictest0-21swapper/112:05:121
2121499120,2cyclictest0-21swapper/108:46:021
2121499120,2cyclictest0-21swapper/107:20:171
2121499120,11cyclictest0-21swapper/111:05:421
2121399129,2cyclictest25624-21kworker/u8:107:42:010
2121399129,2cyclictest25624-21kworker/u8:107:26:000
2121399129,2cyclictest0-21swapper/012:25:560
2121399129,2cyclictest0-21swapper/012:05:020
2121399129,2cyclictest0-21swapper/010:20:470
2121399120,2cyclictest0-21swapper/011:10:080
2121399120,2cyclictest0-21swapper/010:45:210
2121399120,2cyclictest0-21swapper/009:54:060
2121399120,2cyclictest0-21swapper/008:05:170
2121399120,11cyclictest0-21swapper/012:35:540
2121399120,11cyclictest0-21swapper/011:40:020
2121399120,11cyclictest0-21swapper/010:40:240
2121399120,11cyclictest0-21swapper/009:55:310
2121399120,11cyclictest0-21swapper/008:20:170
2121399120,10cyclictest0-21swapper/007:46:530
126522120,2sleep30-21swapper/308:06:013
224702110,2sleep00-21swapper/009:26:390
2121699118,2cyclictest3479-21kworker/u8:009:09:043
2121699118,2cyclictest28851-21kworker/u8:208:51:043
2121699118,2cyclictest28851-21kworker/u8:208:46:043
2121699118,2cyclictest18899-21kworker/u8:007:40:043
2121699118,2cyclictest18899-21kworker/u8:007:36:013
2121699118,2cyclictest0-21swapper/310:46:553
2121699118,2cyclictest0-21swapper/309:35:113
2121599118,2cyclictest0-21swapper/207:56:012
2121599112,6cyclictest0-21swapper/207:17:392
2121599111,6cyclictest0-21swapper/208:15:002
2121499117,2cyclictest0-21swapper/108:40:131
2121499116,3cyclictest15884-21cpuspeed_turbos08:15:121
2121499111,8cyclictest11572-21munin-node1
2121499110,9cyclictest0-21swapper/108:30:141
2121399116,3cyclictest9308-21sendmail08:00:010
2121399112,6cyclictest0-21swapper/007:31:000
2121399112,5cyclictest0-21swapper/008:47:580
2121399111,7cyclictest0-21swapper/008:36:590
2121399111,6cyclictest0-21swapper/007:22:400
2121399110,7cyclictest0-21swapper/007:50:590
318042100,2sleep00-21swapper/008:55:010
2121699105,3cyclictest22296-21tr08:30:143
2121699100,8cyclictest0-21swapper/311:45:523
2121699100,2cyclictest0-21swapper/312:30:403
2121599102,6cyclictest0-21swapper/209:02:592
2121499100,8cyclictest0-21swapper/107:10:121
2121399107,2cyclictest3479-21kworker/u8:009:06:030
2121399107,2cyclictest0-21swapper/008:50:170
2121399101,6cyclictest0-21swapper/009:00:100
2121399101,5cyclictest0-21swapper/008:30:000
2121399100,9cyclictest0-21swapper/009:21:580
2121399100,8cyclictest13610-21munin-node0
212159994,3cyclictest11619-21aten2.4_r3power08:05:112
212159993,4cyclictest25753-21tr07:20:142
212139994,3cyclictest3187-21ntpd08:00:180
212139994,3cyclictest24400-21processes07:15:180
212139994,3cyclictest20270-21cut08:25:140
212139994,3cyclictest16427-21grep08:15:150
212139990,7cyclictest0-21swapper/008:40:150
212139983,3cyclictest31539-21chrt07:35:040
212139981,3cyclictest21821-21diskstats07:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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