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2026-04-27 - 11:23

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 Mon Apr 27, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31643211897,16sleep30-21swapper/319:07:593
31562211796,16sleep00-21swapper/019:06:550
31668211094,11sleep20-21swapper/219:08:182
31477210997,6sleep10-21swapper/119:06:041
145372950,0sleep10-21swapper/121:42:541
5622740,0sleep00-21swapper/022:37:400
247922740,1sleep011-21rcuc/021:20:000
50032700,0sleep30-21swapper/321:32:343
120252690,1sleep30-21swapper/300:35:163
228142680,0sleep10-21swapper/123:36:171
122112680,1sleep00-21swapper/022:50:150
137542660,1sleep20-21swapper/222:51:042
126112660,0sleep20-21swapper/219:40:182
288072250,0sleep10-21swapper/121:23:581
3183199200,2cyclictest0-21swapper/320:50:123
3183199200,18cyclictest0-21swapper/321:20:123
3183099181,3cyclictest0-21swapper/219:36:032
31830991714,2cyclictest10071-21kworker/u8:100:04:052
145502170,0sleep20-21swapper/221:42:542
31831991611,3cyclictest0-21swapper/322:20:183
3183099162,2cyclictest0-21swapper/223:30:022
3183099161,13cyclictest6770-21ssh22:44:542
3183099161,13cyclictest16635-21df_abs22:20:142
3183099161,13cyclictest0-21swapper/221:36:252
3182999161,13cyclictest0-21swapper/123:15:141
3182999160,2cyclictest0-21swapper/123:30:171
31830991512,2cyclictest29705-21kworker/u8:223:10:052
31830991512,2cyclictest20932-21kworker/u8:123:44:052
31830991512,2cyclictest19728-21kworker/u8:023:15:032
31830991512,2cyclictest17543-21kworker/u8:000:12:062
31830991512,2cyclictest0-21swapper/200:36:532
3183099151,12cyclictest0-21swapper/222:35:152
3183099150,3cyclictest7696-21hddtemp_smartct23:20:172
3183099150,3cyclictest4734-21ssh21:32:072
3183099150,2cyclictest0-21swapper/221:45:132
3183099150,2cyclictest0-21swapper/221:45:132
3183099150,13cyclictest0-21swapper/200:31:122
31829991511,3cyclictest29677-21latency_hist00:20:001
3182999151,12cyclictest30633-21iostat20:25:171
3182999151,12cyclictest20995-21apt-get22:25:131
31829991510,3cyclictest17173-21cut21:45:191
31829991510,3cyclictest17173-21cut21:45:191
3182999150,14cyclictest0-21swapper/100:40:001
93672140,2sleep015609-21diskmemload22:46:310
3183199149,3cyclictest11024-21latency_hist00:00:003
31831991411,2cyclictest0-21swapper/319:40:143
3183199141,11cyclictest3127-21nscd21:39:213
31831991410,3cyclictest12265-21runrttasks23:25:163
3183199140,2cyclictest0-21swapper/321:00:003
3183199140,13cyclictest0-21swapper/319:30:303
3183199140,12cyclictest0-21swapper/300:10:173
3183099141,2cyclictest1956-21sed19:15:142
31830991411,2cyclictest10204-21kworker/u8:022:15:052
31830991411,2cyclictest0-21swapper/222:57:132
31830991411,2cyclictest0-21swapper/222:04:022
31830991411,2cyclictest0-21swapper/221:58:532
31830991411,2cyclictest0-21swapper/221:15:032
3183099140,2cyclictest0-21swapper/221:23:132
3183099140,2cyclictest0-21swapper/200:08:522
3183099140,13cyclictest0-21swapper/223:05:332
3182999148,5cyclictest15609-21diskmemload00:01:221
3182999141,2cyclictest2012-21apt-get21:30:121
31829991411,2cyclictest0-21swapper/121:11:231
3182999141,11cyclictest0-21swapper/120:00:391
31829991410,2cyclictest0-21swapper/123:00:501
31829991410,2cyclictest0-21swapper/100:25:521
3182999140,13cyclictest0-21swapper/123:59:491
3182999140,13cyclictest0-21swapper/123:45:001
3182999140,13cyclictest0-21swapper/122:59:001
3182999140,12cyclictest0-21swapper/123:23:331
3182999140,12cyclictest0-21swapper/122:49:171
3182999140,12cyclictest0-21swapper/122:41:011
3182999140,12cyclictest0-21swapper/122:34:231
3182999140,12cyclictest0-21swapper/121:50:301
31828991411,2cyclictest0-21swapper/023:30:060
3182899141,11cyclictest7563-21munin-run20:50:000
3182899140,2cyclictest10803-21ssh21:39:270
3182899140,12cyclictest0-21swapper/022:41:010
3183199131,10cyclictest3728-21runrttasks23:11:063
31831991310,2cyclictest0-21swapper/323:50:093
31831991310,2cyclictest0-21swapper/323:31:303
31831991310,2cyclictest0-21swapper/322:40:303
31831991310,2cyclictest0-21swapper/321:15:163
31831991310,2cyclictest0-21swapper/300:25:203
3183199130,2cyclictest12397-21ssh21:40:163
3183199130,12cyclictest0-21swapper/323:21:003
3183199130,11cyclictest987-21ssh21:28:513
31830991310,2cyclictest5341-21kworker/u8:222:10:052
31830991310,2cyclictest3247-21kworker/u8:220:49:052
31830991310,2cyclictest25441-21kworker/u8:220:13:052
31830991310,2cyclictest21975-21kworker/u8:020:07:042
31830991310,2cyclictest13984-21kworker/u8:120:01:042
31830991310,2cyclictest0-21swapper/223:55:332
31830991310,2cyclictest0-21swapper/223:37:142
31830991310,2cyclictest0-21swapper/222:26:092
31830991310,2cyclictest0-21swapper/221:10:142
31830991310,2cyclictest0-21swapper/220:21:052
31830991310,2cyclictest0-21swapper/200:20:132
31830991310,2cyclictest0-21swapper/200:17:052
3183099130,2cyclictest0-21swapper/223:28:462
3183099130,2cyclictest0-21swapper/222:32:232
3183099130,2cyclictest0-21swapper/219:45:162
3183099130,12cyclictest0-21swapper/223:47:132
3183099130,12cyclictest0-21swapper/223:01:142
3183099130,12cyclictest0-21swapper/220:40:122
3183099130,12cyclictest0-21swapper/200:25:532
3182999131,10cyclictest0-21swapper/120:21:021
31829991310,2cyclictest0-21swapper/123:50:301
31829991310,2cyclictest0-21swapper/123:41:021
31829991310,2cyclictest0-21swapper/123:28:531
31829991310,2cyclictest0-21swapper/123:05:201
31829991310,2cyclictest0-21swapper/122:20:421
31829991310,2cyclictest0-21swapper/122:19:501
31829991310,2cyclictest0-21swapper/122:11:091
31829991310,2cyclictest0-21swapper/121:29:301
31829991310,2cyclictest0-21swapper/121:15:141
31829991310,2cyclictest0-21swapper/120:31:021
31829991310,2cyclictest0-21swapper/100:30:001
31829991310,2cyclictest0-21swapper/100:06:421
3182999130,2cyclictest0-21swapper/121:36:001
3182999130,2cyclictest0-21swapper/120:40:191
3182999130,2cyclictest0-21swapper/100:20:421
3182999130,12cyclictest0-21swapper/122:05:321
3182999130,12cyclictest0-21swapper/122:00:121
3182999130,12cyclictest0-21swapper/100:10:391
3182999130,11cyclictest0-21swapper/120:05:501
3182999130,11cyclictest0-21swapper/119:35:291
31828991310,2cyclictest15609-21diskmemload00:22:260
31828991310,2cyclictest0-21swapper/023:26:040
31828991310,2cyclictest0-21swapper/023:10:470
31828991310,2cyclictest0-21swapper/022:15:060
31828991310,2cyclictest0-21swapper/022:07:570
31828991310,2cyclictest0-21swapper/000:33:270
31828991310,2cyclictest0-21swapper/000:00:190
3182899130,2cyclictest15609-21diskmemload23:15:570
3182899130,2cyclictest13569-21ssh21:41:180
3182899130,2cyclictest0-21swapper/022:03:070
3182899130,2cyclictest0-21swapper/021:48:470
3182899130,2cyclictest0-21swapper/021:48:470
3182899130,11cyclictest28179-21kworker/u8:023:56:040
3183199129,2cyclictest15609-21diskmemload22:17:243
3183199129,2cyclictest0-21swapper/323:49:153
3183199129,2cyclictest0-21swapper/323:15:393
3183199129,2cyclictest0-21swapper/323:07:513
3183199129,2cyclictest0-21swapper/322:58:583
3183199129,2cyclictest0-21swapper/322:26:053
3183199129,2cyclictest0-21swapper/321:15:003
3183199129,2cyclictest0-21swapper/321:01:033
3183199129,2cyclictest0-21swapper/300:33:193
3183199129,2cyclictest0-21swapper/300:15:133
3183199120,2cyclictest0-21swapper/323:00:483
3183199120,2cyclictest0-21swapper/322:46:273
3183199120,2cyclictest0-21swapper/322:31:203
3183199120,2cyclictest0-21swapper/321:56:543
3183199120,2cyclictest0-21swapper/321:05:163
3183199120,2cyclictest0-21swapper/300:02:513
3183199120,11cyclictest0-21swapper/323:40:203
3183199120,11cyclictest0-21swapper/323:35:293
3183199120,11cyclictest0-21swapper/322:14:293
3183199120,11cyclictest0-21swapper/322:05:103
3183199120,11cyclictest0-21swapper/322:00:423
3183199120,11cyclictest0-21swapper/321:50:143
3183199120,11cyclictest0-21swapper/320:05:293
3183199120,11cyclictest0-21swapper/300:22:073
3183099129,2cyclictest0-21swapper/221:05:122
3183099129,2cyclictest0-21swapper/221:00:132
3183099129,2cyclictest0-21swapper/219:55:142
3183099120,2cyclictest0-21swapper/223:51:142
3183099120,2cyclictest0-21swapper/222:45:462
3183099120,2cyclictest0-21swapper/221:51:192
3183099120,2cyclictest0-21swapper/221:25:452
3183099120,11cyclictest0-21swapper/222:09:252
3182999129,2cyclictest0-21swapper/122:51:391
3182999128,2cyclictest25925-21apt-get20:15:111
3182999127,3cyclictest0-21swapper/120:10:131
3182999127,3cyclictest0-21swapper/119:30:151
3182999121,9cyclictest12153-21tr19:40:141
3182999121,9cyclictest0-21swapper/123:10:151
3182999121,9cyclictest0-21swapper/122:35:161
3182999121,9cyclictest0-21swapper/121:00:191
3182999121,9cyclictest0-21swapper/120:55:141
3182999121,9cyclictest0-21swapper/120:50:161
3182999121,9cyclictest0-21swapper/119:15:121
3182999121,3cyclictest1854-21df_abs20:35:131
3182999120,11cyclictest0-21swapper/121:55:091
3182999120,11cyclictest0-21swapper/119:56:021
3182899129,2cyclictest0-21swapper/023:46:030
3182899129,2cyclictest0-21swapper/023:07:290
3182899129,2cyclictest0-21swapper/023:00:570
3182899129,2cyclictest0-21swapper/022:22:470
3182899129,2cyclictest0-21swapper/021:53:160
3182899129,2cyclictest0-21swapper/021:26:030
3182899129,2cyclictest0-21swapper/019:16:010
3182899129,2cyclictest0-21swapper/000:16:170
3182899120,2cyclictest12441-21ssh00:35:200
3182899120,2cyclictest0-21swapper/023:36:040
3182899120,2cyclictest0-21swapper/021:10:490
3182899120,2cyclictest0-21swapper/000:25:180
3182899120,11cyclictest17903-21ssh22:55:590
3182899120,11cyclictest0-21swapper/023:53:080
3182899120,11cyclictest0-21swapper/023:41:500
3182899120,11cyclictest0-21swapper/023:20:090
3182899120,11cyclictest0-21swapper/022:11:590
3182899120,11cyclictest0-21swapper/021:30:320
3182899120,11cyclictest0-21swapper/021:20:280
128872120,1sleep00-21swapper/021:01:020
3183199118,2cyclictest0-21swapper/320:45:143
3183199118,2cyclictest0-21swapper/300:05:243
3183199110,2cyclictest15609-21diskmemload22:35:013
3183199110,10cyclictest0-21swapper/322:53:363
3183199110,10cyclictest0-21swapper/321:49:103
3183199110,10cyclictest0-21swapper/321:49:103
3183199110,10cyclictest0-21swapper/319:55:133
3183099118,2cyclictest7845-21kworker/u8:020:56:042
3183099118,2cyclictest24013-21kworker/u8:119:25:032
3183099118,2cyclictest0-21swapper/219:31:062
3182999117,2cyclictest0-21swapper/119:25:131
3182999116,3cyclictest13853-21munin-node1
3182999113,2cyclictest0-21swapper/121:05:141
3182999111,8cyclictest0-21swapper/119:10:111
3182999111,2cyclictest0-21swapper/119:50:131
3182999110,3cyclictest4055-21df_abs19:20:141
3182999110,2cyclictest0-21swapper/120:48:591
3182899118,2cyclictest0-21swapper/000:05:270
3182899110,2cyclictest0-21swapper/022:29:310
3182899110,10cyclictest0-21swapper/022:31:400
3182899110,10cyclictest0-21swapper/021:55:280
3182899110,10cyclictest0-21swapper/020:26:030
3182899110,10cyclictest0-21swapper/000:10:470
118492111,6sleep011853-21apt-get19:40:120
3183199102,6cyclictest4556-21metacity19:37:583
3183199102,6cyclictest4556-21metacity19:25:593
3183099108,1cyclictest0-21swapper/220:30:182
3183099107,2cyclictest0-21swapper/220:15:172
3183099105,3cyclictest1616-21aten2.4_r3power20:35:122
3183099105,3cyclictest0-21swapper/220:50:152
3183099100,1cyclictest0-21swapper/219:21:292
3182899107,2cyclictest0-21swapper/020:51:050
3182899107,2cyclictest0-21swapper/020:40:160
3182899107,2cyclictest0-21swapper/019:56:010
3182899100,2cyclictest0-21swapper/020:36:410
318319992,6cyclictest0-21swapper/319:10:593
318319991,6cyclictest0-21swapper/319:16:013
318319990,8cyclictest0-21swapper/320:40:333
318319990,8cyclictest0-21swapper/319:48:333
318319990,2cyclictest0-21swapper/320:00:183
318309994,3cyclictest29961-21munin-node2
318309993,4cyclictest32491-21cut19:10:132
318289996,2cyclictest0-21swapper/021:05:170
318289996,2cyclictest0-21swapper/020:05:170
318289996,2cyclictest0-21swapper/020:05:000
318289996,2cyclictest0-21swapper/019:36:010
318289990,7cyclictest0-21swapper/019:50:170
318289990,3cyclictest367850munin-node0
318289990,2cyclictest0-21swapper/020:23:370
2216290,6sleep30-21swapper/320:35:173
5310280,1sleep30-21swapper/319:21:333
318319983,3cyclictest32399-21cut20:30:143
318319983,3cyclictest26015-21aten2.4-expect20:15:133
318319982,4cyclictest15925-21aten2.4-expect19:50:133
318319980,6cyclictest0-21swapper/320:10:593
318309983,3cyclictest15929-21telnet19:50:132
318289985,2cyclictest3762-21kworker/u8:019:27:040
318289985,2cyclictest0-21swapper/020:10:410
318289985,2cyclictest0-21swapper/019:47:210
318289985,2cyclictest0-21swapper/019:10:120
318289984,3cyclictest8977-21sh19:31:030
318289980,7cyclictest0-21swapper/020:55:370
318319973,3cyclictest30045-21cut20:25:133
318319972,3cyclictest28192-21tr20:20:143
318289974,2cyclictest269792sleep020:15:500
318289973,3cyclictest852-21cat20:31:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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