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2026-08-22 - 12:30

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 Aug 22, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16755210998,6sleep30-21swapper/319:07:363
16844210695,6sleep00-21swapper/019:08:440
16846210284,12sleep20-21swapper/219:08:472
16240210181,12sleep10-21swapper/119:06:021
197542930,1sleep20-21swapper/219:15:142
10372800,1sleep10-21swapper/122:15:191
73832730,0sleep10-21swapper/122:21:281
73832730,0sleep10-21swapper/122:21:271
291152730,0sleep20-21swapper/221:38:202
125122680,1sleep337-21rcuc/322:26:503
166362670,0sleep20-21swapper/223:37:372
108632660,0sleep00-21swapper/000:37:440
16973992320,2cyclictest335-21kworker/u8:000:27:043
304732220,1sleep00-21swapper/019:41:000
1697099221,2cyclictest0-21swapper/023:35:120
16973992118,2cyclictest20683-21kworker/u8:223:46:053
1697299211,18cyclictest0-21swapper/221:25:112
16973992017,2cyclictest2147-21kworker/u8:200:00:043
1697299200,18cyclictest0-21swapper/222:25:102
16973991916,2cyclictest7070-21kworker/u8:221:49:053
16973991916,2cyclictest13374-21kworker/u8:000:09:053
16970991916,2cyclictest20683-21kworker/u8:223:43:040
16973991815,2cyclictest2691-21kworker/u8:023:52:043
16973991815,2cyclictest21201-21kworker/u8:021:27:043
16970991815,2cyclictest7861-21kworker/u8:100:08:040
16970991714,2cyclictest7070-21kworker/u8:221:53:050
16970991714,2cyclictest20569-21kworker/u8:200:29:050
1697099170,2cyclictest0-21swapper/022:07:040
16973991613,2cyclictest32491-21kworker/u8:022:49:053
16973991613,2cyclictest27138-21kworker/u8:122:58:023
16973991613,2cyclictest21201-21kworker/u8:021:20:053
1697399161,13cyclictest9368-21ssh22:24:313
1697399161,13cyclictest9368-21ssh22:24:313
1697399160,2cyclictest0-21swapper/322:07:043
16972991611,3cyclictest26384-21ssh00:20:182
1697199164,11cyclictest207150irq/24-eth123:55:221
1697199163,2cyclictest0-21swapper/122:46:161
1697199160,2cyclictest2-21kthreadd22:07:041
1697199160,2cyclictest0-21swapper/100:27:051
16970991613,2cyclictest7861-21kworker/u8:100:14:050
16970991613,2cyclictest7861-21kworker/u8:100:04:060
16970991613,2cyclictest25417-21kworker/u8:022:19:050
16970991613,2cyclictest20569-21kworker/u8:200:16:050
16970991612,2cyclictest5099-21apt-get20:00:110
1697099161,13cyclictest627-21diskmemload22:34:480
1697099160,11cyclictest0-21swapper/021:26:050
16973991512,2cyclictest7861-21kworker/u8:100:12:053
16973991512,2cyclictest32579-21kworker/u8:122:34:053
16973991512,2cyclictest2691-21kworker/u8:023:55:053
16973991512,2cyclictest2691-21kworker/u8:023:39:043
1697399150,13cyclictest9660-21sendmail_mailtr21:51:013
1697299151,12cyclictest23232-21ssh21:31:492
16972991510,3cyclictest5216-21ssh22:20:132
16972991510,3cyclictest5216-21ssh22:20:132
1697299150,13cyclictest5451-21mailstats23:25:592
1697199150,2cyclictest12917-21ssh22:27:271
1697199150,13cyclictest13754-21ssh21:22:171
1697199150,13cyclictest0-21swapper/123:20:181
1697199150,13cyclictest0-21swapper/122:42:271
1697199150,13cyclictest0-21swapper/121:25:571
1697199150,13cyclictest0-21swapper/100:05:111
1697099152,7cyclictest0-21swapper/022:40:010
1697099151,3cyclictest4316-21uniq23:25:130
16970991512,2cyclictest2147-21kworker/u8:223:57:040
1697399141,3cyclictest3333-21ssh22:18:003
1697399141,2cyclictest0-21swapper/300:34:103
16973991411,2cyclictest32491-21kworker/u8:023:18:053
16973991411,2cyclictest32491-21kworker/u8:022:53:043
16973991411,2cyclictest21583-21kworker/u8:123:21:053
16973991411,2cyclictest13374-21kworker/u8:000:19:043
16973991411,2cyclictest0-21swapper/323:06:563
16973991411,2cyclictest0-21swapper/322:03:263
16973991411,2cyclictest0-21swapper/320:55:063
16973991411,2cyclictest0-21swapper/300:35:163
1697399140,4cyclictest0-21swapper/323:33:183
1697399140,2cyclictest14921-21ssh21:56:033
1697399140,2cyclictest0-21swapper/323:12:163
1697399140,2cyclictest0-21swapper/321:17:043
1697399140,2cyclictest0-21swapper/321:00:163
1697399140,13cyclictest0-21swapper/322:13:413
16972991410,2cyclictest31916-21ssh21:40:422
1697299140,2cyclictest24379-21seq20:46:002
1697299140,2cyclictest0-21swapper/220:05:132
1697299140,12cyclictest0-21swapper/220:41:022
1697299140,12cyclictest0-21swapper/219:55:132
1697199141,2cyclictest14715-21cut23:35:191
16971991411,2cyclictest627-21diskmemload21:15:071
16971991411,2cyclictest0-21swapper/123:54:071
16971991411,2cyclictest0-21swapper/122:10:171
16971991411,2cyclictest0-21swapper/119:30:171
16971991411,2cyclictest0-21swapper/100:13:381
1697199140,2cyclictest0-21swapper/123:27:271
1697199140,2cyclictest0-21swapper/123:14:381
1697199140,2cyclictest0-21swapper/121:55:391
1697199140,2cyclictest0-21swapper/121:30:151
1697199140,2cyclictest0-21swapper/100:36:381
1697199140,13cyclictest0-21swapper/100:15:171
1697199140,12cyclictest627-21diskmemload23:18:521
1697199140,12cyclictest19873-21awk22:01:051
1697199140,12cyclictest0-21swapper/123:30:261
1697199140,12cyclictest0-21swapper/122:50:491
1697199140,12cyclictest0-21swapper/122:30:271
1697199140,12cyclictest0-21swapper/121:40:381
16970991411,2cyclictest335-21kworker/u8:000:32:040
16970991411,2cyclictest2691-21kworker/u8:023:47:050
16970991411,2cyclictest21583-21kworker/u8:123:23:050
16970991411,2cyclictest21201-21kworker/u8:021:30:040
16970991411,2cyclictest12172-21kworker/u8:022:29:040
1697099141,11cyclictest28093-21sendmail-mta22:44:450
16970991410,2cyclictest708-21latency_hist21:09:590
1697099140,12cyclictest0-21swapper/023:13:480
1697099140,12cyclictest0-21swapper/019:45:110
1697099140,10cyclictest0-21swapper/021:56:040
15742141,3sleep20-21swapper/221:10:152
217412130,2sleep00-21swapper/022:03:570
1697399139,2cyclictest0-21swapper/321:35:133
16973991310,2cyclictest26949-21kworker/u8:119:55:053
16973991310,2cyclictest0-21swapper/323:40:163
16973991310,2cyclictest0-21swapper/321:42:293
16973991310,2cyclictest0-21swapper/321:30:463
16973991310,2cyclictest0-21swapper/319:36:013
16973991310,2cyclictest0-21swapper/300:21:023
1697399130,2cyclictest0-21swapper/323:26:063
1697399130,2cyclictest0-21swapper/323:02:303
1697399130,2cyclictest0-21swapper/322:38:363
1697399130,2cyclictest0-21swapper/321:10:483
1697399130,2cyclictest0-21swapper/320:46:003
1697399130,2cyclictest0-21swapper/319:11:023
1697399130,12cyclictest0-21swapper/322:43:163
1697399130,12cyclictest0-21swapper/320:50:173
1697399130,12cyclictest0-21swapper/319:45:113
1697399130,12cyclictest0-21swapper/319:25:163
1697299138,3cyclictest27631-21ssh23:49:252
16972991310,2cyclictest0-21swapper/223:20:132
16972991310,2cyclictest0-21swapper/223:17:022
16972991310,2cyclictest0-21swapper/222:00:122
16972991310,2cyclictest0-21swapper/221:53:282
1697299130,2cyclictest0-21swapper/223:05:152
1697299130,2cyclictest0-21swapper/221:24:122
1697299130,2cyclictest0-21swapper/200:12:532
1697299130,12cyclictest0-21swapper/221:15:152
1697299130,12cyclictest0-21swapper/220:55:062
1697299130,11cyclictest627-21diskmemload22:45:252
1697299130,11cyclictest30498-21ssh22:12:242
1697299130,11cyclictest2865-21rm23:56:132
16971991310,2cyclictest0-21swapper/123:45:081
16971991310,2cyclictest0-21swapper/122:56:031
16971991310,2cyclictest0-21swapper/122:37:541
16971991310,2cyclictest0-21swapper/121:50:171
16971991310,2cyclictest0-21swapper/121:46:001
16971991310,2cyclictest0-21swapper/121:39:211
16971991310,2cyclictest0-21swapper/121:05:111
16971991310,2cyclictest0-21swapper/120:50:151
16971991310,2cyclictest0-21swapper/120:40:171
1697199130,2cyclictest0-21swapper/123:05:151
1697199130,2cyclictest0-21swapper/119:21:001
1697199130,2cyclictest0-21swapper/100:24:011
1697199130,2cyclictest0-21swapper/100:00:051
1697199130,12cyclictest0-21swapper/121:10:271
1697199130,12cyclictest0-21swapper/119:40:111
1697199130,12cyclictest0-21swapper/100:30:121
1697199130,11cyclictest0-21swapper/123:00:191
1697199130,11cyclictest0-21swapper/120:05:401
1697099131,6cyclictest0-21swapper/019:25:010
16970991310,2cyclictest2691-21kworker/u8:023:54:050
1697099130,3cyclictest0-21swapper/021:40:130
1697099130,2cyclictest0-21swapper/023:32:160
1697099130,2cyclictest0-21swapper/021:17:050
1697099130,12cyclictest0-21swapper/023:02:280
1697099130,12cyclictest0-21swapper/020:41:000
178582120,2sleep00-21swapper/023:05:360
1697399129,2cyclictest26949-21kworker/u8:119:40:053
1697399129,2cyclictest0-21swapper/320:05:193
1697399120,2cyclictest0-21swapper/320:00:173
1697399120,11cyclictest0-21swapper/320:13:273
1697299129,2cyclictest0-21swapper/223:00:172
1697299129,2cyclictest0-21swapper/222:56:042
1697299129,2cyclictest0-21swapper/222:52:582
1697299129,2cyclictest0-21swapper/200:26:402
1697299122,6cyclictest0-21swapper/219:41:002
1697299122,6cyclictest0-21swapper/219:36:002
1697299120,2cyclictest0-21swapper/222:35:122
1697299120,2cyclictest0-21swapper/222:30:182
1697299120,2cyclictest0-21swapper/222:05:002
1697299120,2cyclictest0-21swapper/221:58:062
1697299120,2cyclictest0-21swapper/220:25:122
1697299120,2cyclictest0-21swapper/200:36:242
1697299120,2cyclictest0-21swapper/200:17:002
1697299120,2cyclictest0-21swapper/200:05:142
1697299120,11cyclictest0-21swapper/223:50:352
1697299120,11cyclictest0-21swapper/223:41:412
1697299120,11cyclictest0-21swapper/223:31:252
1697299120,11cyclictest0-21swapper/222:43:562
1697299120,11cyclictest0-21swapper/222:15:042
1697299120,11cyclictest0-21swapper/221:45:562
1697299120,11cyclictest0-21swapper/219:10:392
1697299120,11cyclictest0-21swapper/200:32:512
1697299120,11cyclictest0-21swapper/200:01:352
1697299120,10cyclictest627-21diskmemload23:10:202
1697199129,2cyclictest11737-21munin-node1
1697199129,2cyclictest0-21swapper/120:35:151
1697199129,2cyclictest0-21swapper/120:13:121
1697199129,2cyclictest0-21swapper/119:55:171
1697199129,2cyclictest0-21swapper/119:25:141
1697199129,2cyclictest0-21swapper/119:16:041
1697199120,2cyclictest0-21swapper/123:40:391
1697099129,2cyclictest32491-21kworker/u8:022:54:050
1697099129,2cyclictest25417-21kworker/u8:022:10:050
1697099129,2cyclictest21201-21kworker/u8:021:21:040
1697099122,7cyclictest0-21swapper/021:04:590
1697099122,7cyclictest0-21swapper/020:19:010
1697099121,9cyclictest5881-21ls21:15:000
1697099120,2cyclictest0-21swapper/021:47:040
1697099120,11cyclictest0-21swapper/022:46:400
1697099120,11cyclictest0-21swapper/020:55:150
1697099120,10cyclictest0-21swapper/020:51:040
25442110,2sleep30-21swapper/319:53:183
1697399118,2cyclictest0-21swapper/320:26:033
1697399110,10cyclictest0-21swapper/320:23:383
1697299118,2cyclictest0-21swapper/220:31:052
1697299118,2cyclictest0-21swapper/220:03:542
1697299110,10cyclictest0-21swapper/220:35:032
1697199118,2cyclictest0-21swapper/121:04:311
1697199118,2cyclictest0-21swapper/119:45:291
1697199116,3cyclictest5096-21munin-node1
1697199110,9cyclictest27017-21apt-get20:55:051
1697199110,2cyclictest0-21swapper/120:33:451
1697099118,2cyclictest24283-21kworker/u8:019:32:050
1697099116,3cyclictest29196-21latency_hist19:40:010
1697099116,3cyclictest22150irq/25-ahci[00020:45:110
1697099112,7cyclictest0-21swapper/020:09:590
1697099112,6cyclictest6781-21ssh22:55:090
1697099110,2cyclictest0-21swapper/022:24:420
1697099110,2cyclictest0-21swapper/022:24:410
1697099110,2cyclictest0-21swapper/021:39:530
1697099110,2cyclictest0-21swapper/020:35:150
1697099110,2cyclictest0-21swapper/020:30:150
1697099110,1cyclictest0-21swapper/000:23:530
1697099110,10cyclictest0-21swapper/019:55:500
292942100,2sleep00-21swapper/023:17:310
1697399107,2cyclictest28971-21kworker/u8:221:05:053
1697399107,2cyclictest21384-21kworker/u8:219:21:053
1697399107,2cyclictest0-21swapper/319:15:163
1697399102,6cyclictest19243-21tail20:35:103
1697299107,2cyclictest0-21swapper/219:45:132
1697299105,3cyclictest23010-21cron19:25:012
1697299105,3cyclictest11187-21telnet20:15:132
1697299100,9cyclictest0-21swapper/221:03:152
1697299100,9cyclictest0-21swapper/220:53:282
1697199107,2cyclictest16711-21kworker/u8:019:11:051
1697199107,2cyclictest0-21swapper/119:53:441
1697199107,2cyclictest0-21swapper/119:35:131
1697199100,9cyclictest23215-21munin-node1
1697199100,9cyclictest0-21swapper/120:20:141
1697199100,8cyclictest0-21swapper/120:25:141
1697099107,2cyclictest30399-21kworker/u8:119:10:050
1697099107,2cyclictest0-21swapper/020:13:190
1697099100,9cyclictest0-21swapper/020:25:150
1697099100,9cyclictest0-21swapper/019:15:180
1697099100,7cyclictest0-21swapper/019:50:020
1697099100,2cyclictest0-21swapper/020:23:490
31295290,5sleep20-21swapper/221:05:092
169739996,2cyclictest26949-21kworker/u8:119:34:023
169739994,3cyclictest39-21ksoftirqd/320:18:563
169739990,8cyclictest0-21swapper/320:42:563
169739990,4cyclictest17254-21aten2.4_r3power20:30:133
169729996,2cyclictest0-21swapper/220:11:032
169729994,3cyclictest13418-21cpuspeed_turbos20:20:132
169729990,2cyclictest0-21swapper/219:53:122
169729983,3cyclictest25237-21munin-node2
169729983,3cyclictest23318-21aten2.4_r3power19:25:082
169709981,4cyclictest23481-21cpuspeed_turbos19:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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