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2026-03-14 - 19:14

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 Sat Mar 14, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7744212098,16sleep10-21swapper/107:06:441
77402115104,6sleep20-21swapper/207:06:412
7906210988,16sleep30-21swapper/307:08:523
7221210695,6sleep00-21swapper/007:05:230
62221040,1sleep1621-21diskstats11:30:131
2145721030,1sleep221456-21ssh11:50:532
168532720,0sleep00-21swapper/011:13:430
26782690,0sleep30-21swapper/312:05:143
119772680,1sleep10-21swapper/111:41:021
8024993817,19cyclictest0-21swapper/108:35:111
8024993817,19cyclictest0-21swapper/108:15:131
305942260,0sleep30-21swapper/311:27:173
802699240,22cyclictest0-21swapper/312:00:123
802499210,19cyclictest0-21swapper/112:00:121
802399211,18cyclictest24311-21diskmemload11:20:120
802699200,18cyclictest0-21swapper/309:50:103
802699200,18cyclictest0-21swapper/308:05:123
802399200,2cyclictest0-21swapper/007:20:110
802699170,15cyclictest0-21swapper/311:40:123
8025991714,2cyclictest23790-21kworker/u8:111:56:062
8024991712,3cyclictest0-21swapper/111:55:111
8025991613,2cyclictest9094-21kworker/u8:010:18:052
8025991613,2cyclictest23790-21kworker/u8:112:04:042
8025991613,2cyclictest22532-21kworker/u8:110:25:042
8024991613,2cyclictest0-21swapper/110:35:121
802499160,5cyclictest0-21swapper/112:08:021
8023991613,2cyclictest27840-21kworker/u8:012:37:050
285582160,0sleep20-21swapper/209:14:012
8026991512,2cyclictest0-21swapper/311:11:003
8026991511,2cyclictest30714-21ssh10:55:133
802699151,12cyclictest20779-21ssh12:23:453
8026991511,2cyclictest0-21swapper/309:49:083
8026991510,3cyclictest0-21swapper/311:33:103
802699150,13cyclictest5464-21egrep11:35:123
802699150,13cyclictest0-21swapper/310:49:403
802699150,13cyclictest0-21swapper/310:00:143
8025991512,2cyclictest9094-21kworker/u8:010:06:062
8025991512,2cyclictest9094-21kworker/u8:010:01:042
8025991512,2cyclictest27260-21kworker/u8:011:26:042
802499152,7cyclictest0-21swapper/107:25:001
802499151,3cyclictest7881-21munin-node1
8024991511,2cyclictest7069-21apt-get09:25:101
802499151,12cyclictest14505-21sh11:10:441
8024991511,2cyclictest0-21swapper/109:55:071
8024991510,3cyclictest10196-21pzem_current10:00:191
8024991510,3cyclictest0-21swapper/111:23:341
802499150,3cyclictest0-21swapper/109:51:111
802499150,13cyclictest0-21swapper/109:20:151
802499150,13cyclictest0-21swapper/107:45:121
8023991512,2cyclictest0-21swapper/011:36:140
8023991512,2cyclictest0-21swapper/011:25:140
8023991512,2cyclictest0-21swapper/010:02:240
802399150,13cyclictest0-21swapper/011:16:540
802699149,3cyclictest0-21swapper/308:40:163
802699141,2cyclictest21334-21munin-node3
8026991411,2cyclictest0-21swapper/309:15:113
802699140,12cyclictest24311-21diskmemload11:49:233
802699140,12cyclictest0-21swapper/310:33:513
802699140,12cyclictest0-21swapper/309:37:203
8025991411,2cyclictest9094-21kworker/u8:010:11:042
8025991411,2cyclictest7696-21kworker/u8:011:42:022
8025991411,2cyclictest7388-21kworker/u8:211:09:052
8025991411,2cyclictest7388-21kworker/u8:211:09:042
8025991411,2cyclictest4374-21kworker/u8:208:34:042
8025991411,2cyclictest23790-21kworker/u8:112:05:052
8025991411,2cyclictest16541-21kworker/u8:209:07:052
8025991411,2cyclictest15970-21kworker/u8:107:29:042
8025991411,2cyclictest13883-21kworker/u8:007:23:052
802599140,13cyclictest0-21swapper/209:30:172
802499149,3cyclictest9066-21munin-node1
802499149,3cyclictest9066-21munin-node1
802499149,3cyclictest32142-21sh11:29:401
802499142,7cyclictest0-21swapper/108:55:001
802499142,6cyclictest0-21swapper/110:40:001
802499140,3cyclictest21369-21ssh11:18:111
802499140,2cyclictest0-21swapper/110:45:121
802499140,12cyclictest28881-21ssh09:14:301
802499140,12cyclictest24311-21diskmemload10:22:431
802499140,12cyclictest0-21swapper/112:31:501
802499140,12cyclictest0-21swapper/111:38:351
802399149,3cyclictest715-21fw_packets08:10:130
8023991411,2cyclictest0-21swapper/012:17:040
8023991411,2cyclictest0-21swapper/010:11:050
8023991411,2cyclictest0-21swapper/009:23:250
8023991411,2cyclictest0-21swapper/009:06:050
802399140,2cyclictest0-21swapper/011:30:450
802399140,13cyclictest0-21swapper/011:45:050
802399140,13cyclictest0-21swapper/010:17:040
802399140,12cyclictest9880-21ssh09:27:180
802399140,12cyclictest24311-21diskmemload12:20:190
201842140,2sleep00-21swapper/010:44:260
8026991310,2cyclictest0-21swapper/311:53:183
8026991310,2cyclictest0-21swapper/310:41:493
8026991310,2cyclictest0-21swapper/310:37:003
8026991310,2cyclictest0-21swapper/310:10:273
8026991310,2cyclictest0-21swapper/310:09:003
8026991310,2cyclictest0-21swapper/309:33:593
8026991310,2cyclictest0-21swapper/309:14:103
8026991310,2cyclictest0-21swapper/308:35:133
8026991310,2cyclictest0-21swapper/308:30:153
802699130,2cyclictest0-21swapper/312:15:563
802699130,2cyclictest0-21swapper/312:10:183
802699130,2cyclictest0-21swapper/309:27:003
802699130,12cyclictest0-21swapper/309:55:173
802699130,11cyclictest24311-21diskmemload10:15:153
802699130,11cyclictest0-21swapper/312:26:533
802699130,11cyclictest0-21swapper/310:50:143
8025991310,2cyclictest7143-21kworker/u8:209:39:042
8025991310,2cyclictest4093-21kworker/u8:307:17:042
8025991310,2cyclictest30373-21kworker/u8:111:35:042
8025991310,2cyclictest27260-21kworker/u8:011:24:012
8025991310,2cyclictest27260-21kworker/u8:010:51:042
8025991310,2cyclictest16541-21kworker/u8:208:59:042
8025991310,2cyclictest16475-21apt-get08:50:112
8025991310,2cyclictest15970-21kworker/u8:107:53:052
8025991310,2cyclictest14096-21kworker/u8:009:02:042
8025991310,2cyclictest12-21rcu_preempt07:55:122
802599130,12cyclictest0-21swapper/209:40:172
802599130,11cyclictest0-21swapper/212:35:082
802499138,3cyclictest8421-21munin-node1
802499131,3cyclictest0-21swapper/108:01:001
802499131,3cyclictest0-21swapper/107:40:151
802499131,3cyclictest0-21swapper/107:16:031
8024991310,2cyclictest0-21swapper/112:18:041
8024991310,2cyclictest0-21swapper/111:46:141
8024991310,2cyclictest0-21swapper/110:55:151
8024991310,2cyclictest0-21swapper/110:25:391
8024991310,2cyclictest0-21swapper/110:08:221
8024991310,2cyclictest0-21swapper/109:35:521
8024991310,2cyclictest0-21swapper/109:16:031
802499130,2cyclictest27277-21ssh10:18:191
802499130,2cyclictest207150irq/24-eth109:45:421
802499130,2cyclictest0-21swapper/112:20:571
802499130,2cyclictest0-21swapper/111:53:381
802499130,2cyclictest0-21swapper/109:40:131
802499130,2cyclictest0-21swapper/108:00:001
802499130,12cyclictest0-21swapper/112:35:321
802499130,12cyclictest0-21swapper/111:00:151
802499130,12cyclictest0-21swapper/110:52:521
802499130,12cyclictest0-21swapper/110:13:261
802499130,12cyclictest0-21swapper/107:55:011
802399131,11cyclictest0-21swapper/012:05:070
8023991310,2cyclictest21918-21apt-get12:25:110
8023991310,2cyclictest0-21swapper/011:50:160
8023991310,2cyclictest0-21swapper/011:42:040
8023991310,2cyclictest0-21swapper/011:05:070
8023991310,2cyclictest0-21swapper/011:05:060
8023991310,2cyclictest0-21swapper/010:26:140
8023991310,2cyclictest0-21swapper/009:51:000
802399130,2cyclictest0-21swapper/009:56:250
802399130,2cyclictest0-21swapper/009:11:340
802399130,12cyclictest0-21swapper/012:04:140
802399130,12cyclictest0-21swapper/011:02:250
802399130,11cyclictest0-21swapper/010:45:310
32472130,2sleep30-21swapper/308:15:293
286072130,2sleep024311-21diskmemload10:20:020
802699129,2cyclictest0-21swapper/310:27:153
802699129,2cyclictest0-21swapper/310:22:253
802699122,7cyclictest0-21swapper/307:58:583
802699122,7cyclictest0-21swapper/307:27:013
802699122,6cyclictest0-21swapper/307:25:013
802699120,2cyclictest0-21swapper/312:36:063
802699120,2cyclictest0-21swapper/311:55:193
802699120,2cyclictest0-21swapper/311:01:073
802699120,2cyclictest0-21swapper/309:21:083
802699120,2cyclictest0-21swapper/307:35:183
802699120,2cyclictest0-21swapper/307:35:173
802699120,1cyclictest0-21swapper/312:31:013
802699120,11cyclictest0-21swapper/311:21:203
802699120,11cyclictest0-21swapper/311:17:263
802699120,11cyclictest0-21swapper/311:05:213
802699120,11cyclictest0-21swapper/311:05:203
802699120,11cyclictest0-21swapper/307:30:173
802699120,11cyclictest0-21swapper/307:30:163
802599129,2cyclictest9065-21kworker/u8:108:36:012
802599129,2cyclictest4374-21kworker/u8:208:42:052
802599129,2cyclictest27260-21kworker/u8:011:15:052
802599129,2cyclictest1915-21kworker/u8:009:22:012
802599129,2cyclictest14096-21kworker/u8:008:47:042
802599129,2cyclictest13227-21kworker/u8:212:28:012
802599129,2cyclictest0-21swapper/211:47:352
802599128,2cyclictest22554-21munin-node2
802599127,3cyclictest30850-21munin-node2
802599121,9cyclictest13116-21ssh11:10:102
802599121,9cyclictest0-21swapper/210:38:062
802599121,2cyclictest0-21swapper/209:51:142
802599120,2cyclictest24311-21diskmemload10:30:342
802599120,11cyclictest24311-21diskmemload09:45:152
802599120,11cyclictest0-21swapper/210:40:452
802599120,11cyclictest0-21swapper/210:20:112
802599120,11cyclictest0-21swapper/208:20:012
802599120,11cyclictest0-21swapper/208:00:162
802499129,2cyclictest0-21swapper/112:25:381
802499129,2cyclictest0-21swapper/109:30:231
802499128,2cyclictest0-21swapper/109:05:151
802499122,7cyclictest0-21swapper/108:07:581
802499122,5cyclictest0-21swapper/108:45:001
802499121,9cyclictest20507-21munin-node1
802499121,9cyclictest12273-21munin-node1
802499121,9cyclictest0-21swapper/110:30:161
802499121,9cyclictest0-21swapper/108:55:111
802499121,9cyclictest0-21swapper/108:10:111
802499121,9cyclictest0-21swapper/107:30:131
802499121,9cyclictest0-21swapper/107:30:121
802499121,9cyclictest0-21swapper/107:10:161
802499120,3cyclictest0-21swapper/108:20:181
802399129,2cyclictest4879-21fschecks_time08:20:140
802399129,2cyclictest0-21swapper/012:11:020
802399129,2cyclictest0-21swapper/011:55:550
802399129,2cyclictest0-21swapper/010:55:490
802399129,2cyclictest0-21swapper/010:06:000
802399129,2cyclictest0-21swapper/008:50:380
802399129,2cyclictest0-21swapper/007:42:160
802399120,2cyclictest0-21swapper/010:36:210
802399120,2cyclictest0-21swapper/007:25:170
802399120,11cyclictest29940-21ssh09:48:010
802399120,11cyclictest25752-21ssh10:50:070
802399120,11cyclictest0-21swapper/010:30:550
802399120,11cyclictest0-21swapper/009:36:000
802399120,11cyclictest0-21swapper/009:31:130
802399120,11cyclictest0-21swapper/009:17:150
802399120,11cyclictest0-21swapper/008:25:130
802399120,10cyclictest0-21swapper/009:40:040
231252120,2sleep30-21swapper/309:40:413
802699112,6cyclictest0-21swapper/308:11:593
802699112,5cyclictest0-21swapper/308:59:593
802599118,2cyclictest4374-21kworker/u8:208:28:052
802599118,2cyclictest30131-21kworker/u8:108:10:042
802599118,2cyclictest0-21swapper/212:31:062
802599118,2cyclictest0-21swapper/212:24:162
802599118,2cyclictest0-21swapper/212:15:092
802599118,2cyclictest0-21swapper/208:05:132
802599110,2cyclictest0-21swapper/211:00:182
802599110,10cyclictest9366-21ssh09:26:302
802499111,8cyclictest15143-21iostat_ios08:45:151
802499110,9cyclictest18364-21munin-node1
802499110,9cyclictest18364-21munin-node1
802399118,2cyclictest0-21swapper/012:31:470
802399118,2cyclictest0-21swapper/008:55:130
77232110,2sleep20-21swapper/212:10:142
294642110,2sleep20-21swapper/209:15:072
802699107,2cyclictest0-21swapper/308:25:193
802699102,7cyclictest0-21swapper/308:02:023
802699102,5cyclictest0-21swapper/307:15:013
802699102,5cyclictest0-21swapper/307:11:583
802699100,7cyclictest0-21swapper/309:06:013
802599107,2cyclictest21878-21kworker/u8:109:59:052
802599107,2cyclictest1727-21kworker/u8:008:21:042
802599100,9cyclictest0-21swapper/211:30:062
802599100,8cyclictest0-21swapper/210:45:332
802499101,2cyclictest0-21swapper/108:25:181
802399107,2cyclictest18131-21apt-get07:35:000
802399107,2cyclictest18131-21apt-get07:35:000
802399100,9cyclictest9065-21kworker/u8:108:40:050
802399100,9cyclictest0-21swapper/008:15:080
802399100,9cyclictest0-21swapper/007:14:250
80269995,2cyclictest0-21swapper/307:46:013
80269992,6cyclictest0-21swapper/309:01:013
80269992,6cyclictest0-21swapper/308:47:013
80269991,3cyclictest18261-21cron08:55:003
80259995,2cyclictest0-21swapper/207:10:112
80259994,3cyclictest20924-21fschecks_time07:40:152
80259994,3cyclictest16314-21munin-node2
80259994,3cyclictest16314-21munin-node2
80259991,5cyclictest0-21swapper/207:35:572
80259991,5cyclictest0-21swapper/207:35:562
80239996,2cyclictest0-21swapper/008:00:380
80239994,4cyclictest0-21swapper/007:58:040
80239994,3cyclictest14944-21tune2fs08:45:130
31620290,1sleep00-21swapper/008:05:300
80269984,2cyclictest24769-21cpu07:50:123
80269983,3cyclictest4817-21grep08:20:143
80239983,3cyclictest9597-21swap08:31:030
80239983,3cyclictest10943-21grep08:35:140
80239980,7cyclictest24138-21kworker/u8:207:48:040
80239980,7cyclictest0-21swapper/007:31:300
80239980,7cyclictest0-21swapper/007:31:290
80239980,2cyclictest0-21swapper/009:00:050
80239972,3cyclictest24716-21cut07:50:130
80239970,6cyclictest0-21swapper/007:15:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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