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2026-07-16 - 11:25

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 Jul 16, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5592211795,17sleep10-21swapper/119:06:531
3932210988,15sleep20-21swapper/219:05:022
3935210887,15sleep00-21swapper/019:05:050
5055210696,6sleep30-21swapper/319:05:233
85902750,0sleep30-21swapper/322:02:453
289642750,1sleep20-21swapper/223:30:142
5863993329,2cyclictest0-21swapper/223:10:112
586499291,26cyclictest0-21swapper/319:45:113
586499281,2cyclictest0-21swapper/319:15:093
586499270,25cyclictest0-21swapper/323:15:113
586499251,2cyclictest0-21swapper/322:15:113
586499251,2cyclictest0-21swapper/322:15:113
586399242,17cyclictest0-21swapper/222:49:042
586199221,19cyclictest4305-21gnome-session21:00:090
586199211,18cyclictest10411-21ssh22:05:100
586399200,15cyclictest0-21swapper/223:02:012
151232200,0sleep10-21swapper/122:10:001
5863991916,2cyclictest31177-21kworker/u8:221:22:012
13512190,0sleep00-21swapper/000:08:200
5863991815,2cyclictest8617-21kworker/u8:223:19:042
5863991815,2cyclictest7597-21kworker/u8:021:45:042
5863991815,2cyclictest4167-21kworker/u8:000:17:042
5863991815,2cyclictest31118-21kworker/u8:220:15:042
5863991815,2cyclictest12-21rcu_preempt00:05:122
586399180,13cyclictest0-21swapper/223:48:042
586199180,16cyclictest0-21swapper/023:30:110
586499171,14cyclictest0-21swapper/321:00:133
5863991714,2cyclictest31118-21kworker/u8:220:14:042
5863991714,2cyclictest29839-21kworker/u8:119:40:012
5863991714,2cyclictest13892-21kworker/u8:123:25:042
5863991714,2cyclictest12542-21kworker/u8:121:26:052
586399170,15cyclictest0-21swapper/222:05:102
586299171,13cyclictest23148-21grep21:11:041
5863991613,2cyclictest6108-21kworker/u8:000:04:042
5863991613,2cyclictest29819-21kworker/u8:222:29:042
5863991613,2cyclictest26122-21kworker/u8:100:34:042
5863991613,2cyclictest25539-21kworker/u8:020:37:042
5863991613,2cyclictest21933-21kworker/u8:219:52:042
5863991611,3cyclictest20829-21cut23:55:112
586399161,13cyclictest0-21swapper/219:15:102
586399160,2cyclictest0-21swapper/223:52:042
5864991511,2cyclictest31604-21apt-get20:15:133
586499150,13cyclictest28461-21ssh22:23:343
586499150,13cyclictest10323-21timerandwakeup21:31:043
586499150,13cyclictest0-21swapper/322:05:103
5863991512,2cyclictest4167-21kworker/u8:000:24:012
5863991512,2cyclictest29819-21kworker/u8:222:39:042
5863991512,2cyclictest16983-21kworker/u8:222:17:042
5863991512,2cyclictest16983-21kworker/u8:222:17:042
5863991512,2cyclictest12542-21kworker/u8:121:16:042
586399151,12cyclictest15071-21apt-get20:55:112
586399150,13cyclictest0-21swapper/223:37:012
586399150,13cyclictest0-21swapper/222:50:182
5862991510,3cyclictest18268-21latency00:25:171
5862991510,3cyclictest0-21swapper/121:43:531
5862991510,3cyclictest0-21swapper/119:15:141
586299150,13cyclictest0-21swapper/119:25:001
5861991512,2cyclictest0-21swapper/000:30:490
586199150,13cyclictest0-21swapper/019:50:180
586499149,3cyclictest3675-21ssh22:30:573
5864991411,2cyclictest0-21swapper/322:51:593
586499141,11cyclictest21498-21sendmail-mta21:43:483
586499141,11cyclictest13879-21rm23:47:413
5864991410,2cyclictest0-21swapper/320:20:183
586499140,2cyclictest0-21swapper/322:55:423
586499140,12cyclictest13557-21fschecks_time20:50:153
586399149,3cyclictest3649-21snmpd22:11:242
586399149,3cyclictest0-21swapper/222:03:132
586399142,6cyclictest0-21swapper/221:35:002
5863991411,2cyclictest7656-21kworker/u8:219:13:042
5863991411,2cyclictest29839-21kworker/u8:119:57:042
5863991411,2cyclictest29839-21kworker/u8:119:30:042
5863991411,2cyclictest29839-21kworker/u8:119:24:042
5863991411,2cyclictest26122-21kworker/u8:100:37:042
5863991411,2cyclictest25539-21kworker/u8:020:24:012
5863991411,2cyclictest12542-21kworker/u8:121:04:042
5863991411,2cyclictest12542-21kworker/u8:120:51:042
5863991411,2cyclictest12542-21kworker/u8:120:49:042
5863991410,2cyclictest0-21swapper/200:28:082
586399140,12cyclictest0-21swapper/221:40:122
586299142,10cyclictest207150irq/24-eth100:22:331
586299141,11cyclictest24243-21ssh23:58:381
5862991410,2cyclictest30487-21kworker/u8:200:08:011
586299140,3cyclictest27060-21diskmemload22:21:251
586299140,12cyclictest20895-21diskmemload22:36:011
586299140,12cyclictest0-21swapper/123:17:371
586299140,12cyclictest0-21swapper/121:26:021
586199149,3cyclictest30403-21ssh21:19:320
586199141,3cyclictest10433-21ssh23:10:510
586199141,2cyclictest425-21apt-get21:55:120
5861991411,2cyclictest0-21swapper/022:33:580
5861991410,2cyclictest0-21swapper/000:35:000
586199140,2cyclictest0-21swapper/023:02:590
586199140,12cyclictest0-21swapper/021:31:040
586199140,12cyclictest0-21swapper/020:10:090
289422140,2sleep00-21swapper/000:03:240
264842140,2sleep120895-21diskmemload00:34:231
183952140,2sleep10-21swapper/122:45:531
586499138,3cyclictest21397-21munin-node3
586499132,6cyclictest0-21swapper/319:45:003
586499131,3cyclictest1685-21rm21:22:463
586499131,10cyclictest381ktimersoftd/321:55:563
5864991310,2cyclictest0-21swapper/323:35:123
5864991310,2cyclictest0-21swapper/321:45:113
5864991310,2cyclictest0-21swapper/320:00:123
5864991310,2cyclictest0-21swapper/319:35:153
5864991310,2cyclictest0-21swapper/319:10:513
586499130,2cyclictest0-21swapper/321:27:373
586499130,2cyclictest0-21swapper/319:20:163
586499130,2cyclictest0-21swapper/300:30:593
586499130,2cyclictest0-21swapper/300:04:193
586499130,11cyclictest0-21swapper/323:25:593
586399132,6cyclictest0-21swapper/220:10:002
5863991310,2cyclictest29839-21kworker/u8:119:28:042
5863991310,2cyclictest13892-21kworker/u8:123:40:042
5863991310,2cyclictest0-21swapper/222:44:302
5863991310,2cyclictest0-21swapper/222:33:492
586399130,3cyclictest6263-21ssh00:13:102
586399130,2cyclictest20895-21diskmemload22:56:422
586399130,2cyclictest0-21swapper/223:21:182
586399130,2cyclictest0-21swapper/221:51:482
586399130,2cyclictest0-21swapper/221:13:242
586399130,2cyclictest0-21swapper/219:35:142
586399130,12cyclictest0-21swapper/221:30:562
586299131,10cyclictest3728-21runrttasks21:46:151
5862991310,2cyclictest25222-21kworker/1:020:05:141
5862991310,2cyclictest20895-21diskmemload22:30:121
5862991310,2cyclictest14677-21kworker/u8:020:55:041
5862991310,2cyclictest0-21swapper/123:38:581
5862991310,2cyclictest0-21swapper/123:20:151
5862991310,2cyclictest0-21swapper/123:03:461
5862991310,2cyclictest0-21swapper/122:51:021
5862991310,2cyclictest0-21swapper/121:19:291
5862991310,2cyclictest0-21swapper/100:15:101
586299130,2cyclictest0-21swapper/122:40:461
586299130,2cyclictest0-21swapper/121:50:151
586299130,2cyclictest0-21swapper/121:36:051
586299130,12cyclictest0-21swapper/122:04:511
586299130,11cyclictest29711-21sh22:25:101
586299130,11cyclictest0-21swapper/123:45:241
586299130,11cyclictest0-21swapper/121:20:301
586299130,11cyclictest0-21swapper/120:20:111
586199138,3cyclictest23476-21ssh22:18:270
586199138,3cyclictest23476-21ssh22:18:270
586199138,3cyclictest0-21swapper/023:41:420
5861991310,2cyclictest20895-21diskmemload22:52:090
5861991310,2cyclictest14444-21fschecks_time23:15:140
5861991310,2cyclictest0-21swapper/023:47:090
5861991310,2cyclictest0-21swapper/022:35:140
586199130,2cyclictest6363-21ssh00:13:190
586199130,2cyclictest0-21swapper/023:36:330
586199130,2cyclictest0-21swapper/023:08:290
586199130,2cyclictest0-21swapper/022:27:380
586199130,2cyclictest0-21swapper/021:11:380
586199130,2cyclictest0-21swapper/020:21:020
586199130,12cyclictest0-21swapper/021:20:480
586199130,11cyclictest20895-21diskmemload22:00:020
586199130,11cyclictest0-21swapper/023:55:500
586199130,11cyclictest0-21swapper/021:53:350
274922130,2sleep20-21swapper/222:22:052
586499129,2cyclictest0-21swapper/323:41:283
586499129,2cyclictest0-21swapper/323:30:503
586499129,2cyclictest0-21swapper/320:33:443
586499129,2cyclictest0-21swapper/320:06:023
586499128,2cyclictest0-21swapper/300:27:263
586499127,3cyclictest476-21ssh22:27:593
586499127,3cyclictest30088-21cut20:10:123
586499122,7cyclictest0-21swapper/300:12:593
586499122,5cyclictest0-21swapper/320:00:003
586499121,6cyclictest0-21swapper/322:15:003
586499120,9cyclictest4562-21gdm-simple-gree21:17:593
586499120,2cyclictest25081-21ssh21:13:523
586499120,2cyclictest0-21swapper/322:40:033
586499120,2cyclictest0-21swapper/322:35:133
586499120,2cyclictest0-21swapper/321:09:553
586499120,11cyclictest0-21swapper/320:56:023
586499120,11cyclictest0-21swapper/300:15:053
586499120,11cyclictest0-21swapper/300:07:403
586499120,10cyclictest1459-21ssh23:01:393
586499120,10cyclictest0-21swapper/323:52:043
586399129,2cyclictest18289-21kworker/u8:019:47:042
586399129,2cyclictest0-21swapper/223:05:152
586399129,2cyclictest0-21swapper/220:25:132
586399120,11cyclictest0-21swapper/221:55:242
586399120,11cyclictest0-21swapper/220:40:592
586299129,2cyclictest29819-21kworker/u8:222:55:041
586299129,2cyclictest0-21swapper/123:54:461
586299129,2cyclictest0-21swapper/122:15:451
586299129,2cyclictest0-21swapper/122:15:451
586299129,2cyclictest0-21swapper/120:45:401
586299129,2cyclictest0-21swapper/120:31:021
586299129,2cyclictest0-21swapper/100:00:371
586299121,9cyclictest0-21swapper/119:40:111
5862991210,1cyclictest0-21swapper/121:05:191
586299120,2cyclictest0-21swapper/121:31:571
586299120,2cyclictest0-21swapper/119:25:121
586299120,2cyclictest0-21swapper/100:11:381
586299120,11cyclictest30039-21ssh23:30:591
586299120,11cyclictest0-21swapper/123:40:301
586299120,11cyclictest0-21swapper/123:10:181
586299120,11cyclictest0-21swapper/123:06:431
586299120,11cyclictest0-21swapper/121:56:451
586299120,11cyclictest0-21swapper/120:16:041
586299120,11cyclictest0-21swapper/120:10:591
586299120,11cyclictest0-21swapper/100:36:041
586299120,10cyclictest15612-21grep22:10:131
586299120,10cyclictest0-21swapper/119:10:401
586199129,2cyclictest20895-21diskmemload22:20:580
586199129,2cyclictest20895-21diskmemload00:20:150
586199129,2cyclictest0-21swapper/023:52:530
586199129,2cyclictest0-21swapper/022:55:530
586199129,2cyclictest0-21swapper/021:45:140
586199129,2cyclictest0-21swapper/019:25:120
586199122,6cyclictest0-21swapper/019:35:520
586199121,3cyclictest0-21swapper/020:00:000
586199120,2cyclictest0-21swapper/023:27:150
586199120,2cyclictest0-21swapper/022:10:190
586199120,11cyclictest0-21swapper/023:20:160
586199120,11cyclictest0-21swapper/022:45:070
586199120,11cyclictest0-21swapper/022:40:120
586199120,11cyclictest0-21swapper/021:40:520
586199120,11cyclictest0-21swapper/021:35:150
586199120,11cyclictest0-21swapper/021:26:050
586199120,11cyclictest0-21swapper/000:25:120
586199120,11cyclictest0-21swapper/000:16:130
586499118,2cyclictest0-21swapper/322:48:163
586499118,2cyclictest0-21swapper/320:46:023
586499116,3cyclictest13707-21cpuspeed_turbos21:35:143
586499110,2cyclictest0-21swapper/323:06:173
586499110,2cyclictest0-21swapper/321:51:333
586499110,2cyclictest0-21swapper/300:24:133
586499110,10cyclictest0-21swapper/323:11:353
586299118,2cyclictest0-21swapper/123:25:561
586299118,2cyclictest0-21swapper/121:00:101
586299116,3cyclictest16133-21munin-node1
586299112,6cyclictest0-21swapper/120:26:011
586299111,2cyclictest0-21swapper/120:51:041
586299110,9cyclictest0-21swapper/120:00:121
586299110,6cyclictest0-21swapper/119:55:041
586299110,1cyclictest0-21swapper/119:30:191
586199118,2cyclictest0-21swapper/021:06:440
586199116,3cyclictest15519-21cut20:55:150
586199111,6cyclictest0-21swapper/020:41:050
586199111,5cyclictest0-21swapper/020:30:000
586199110,10cyclictest0-21swapper/020:00:130
586199110,10cyclictest0-21swapper/019:45:140
77872100,2sleep10-21swapper/120:35:151
586499106,2cyclictest0-21swapper/319:51:033
586499105,3cyclictest5277-21sort20:30:003
586499105,3cyclictest274-21jbd2/sda1-800:35:063
586399101,6cyclictest0-21swapper/220:00:572
586399101,5cyclictest0-21swapper/221:06:042
586299100,9cyclictest0-21swapper/119:50:511
586299100,8cyclictest0-21swapper/119:45:151
586199107,2cyclictest0-21swapper/020:45:300
586199105,3cyclictest6171-21telnet19:10:120
586199101,5cyclictest0-21swapper/020:35:000
586199101,5cyclictest0-21swapper/020:10:000
586199101,5cyclictest0-21swapper/019:25:010
58649996,2cyclictest0-21swapper/320:40:143
58649994,3cyclictest7714-21df_abs20:35:133
58649994,3cyclictest19746-21proc_pri23:20:183
58649994,3cyclictest12746-21if_eth019:25:153
58639994,3cyclictest6251-21grep20:30:172
58629990,7cyclictest0-21swapper/120:40:131
58619996,2cyclictest0-21swapper/020:15:380
58619994,3cyclictest8496-21chrt20:36:290
58619994,3cyclictest8323-21cut19:15:110
58619993,4cyclictest14880-21wc20:55:000
58649984,2cyclictest3728-21runrttasks19:30:013
58619985,2cyclictest0-21swapper/019:40:110
58619984,2cyclictest0-21swapper/019:30:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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