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2026-08-21 - 05:07

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 Fri Aug 21, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1481211692,19sleep00-21swapper/019:09:280
754211389,17sleep30-21swapper/319:05:303
1448210989,15sleep20-21swapper/219:09:012
1297210695,6sleep10-21swapper/119:07:041
204382720,0sleep215145-21diskmemload00:00:162
64752710,0sleep10-21swapper/123:45:521
87622690,1sleep28767-21unixbench_singl19:26:032
1553992522,2cyclictest23230-21kworker/u8:022:33:042
1554992421,2cyclictest24505-21kworker/u8:322:27:043
1554992421,2cyclictest24505-21kworker/u8:322:08:053
1554992421,2cyclictest1273-21kworker/u8:023:09:043
1553992421,2cyclictest8006-21kworker/u8:123:18:012
1553992421,2cyclictest30900-21kworker/u8:000:19:042
155299241,2cyclictest0-21swapper/120:25:111
155299241,21cyclictest0-21swapper/122:23:551
182002230,1sleep30-21swapper/321:45:173
1554992320,2cyclictest3223-21kworker/u8:322:42:013
1554992320,2cyclictest30219-21kworker/u8:121:28:043
1554992320,2cyclictest25235-21kworker/u8:000:39:043
1554992320,2cyclictest14357-21kworker/u8:122:23:043
1554992320,2cyclictest11874-21kworker/u8:022:53:043
1554992320,2cyclictest11874-21kworker/u8:022:48:013
1553992320,2cyclictest20679-21kworker/u8:123:30:042
155299231,3cyclictest30279-21sh22:30:581
155299231,3cyclictest0-21swapper/121:25:001
155299231,20cyclictest0-21swapper/122:25:151
155299230,5cyclictest26156-21perl23:00:151
155299230,3cyclictest16661-21cut22:50:151
1554992219,2cyclictest30900-21kworker/u8:000:18:043
1554992219,2cyclictest27610-21kworker/u8:020:53:043
1554992219,2cyclictest24505-21kworker/u8:322:04:013
1554992219,2cyclictest15990-21kworker/u8:223:58:043
1554992219,2cyclictest15990-21kworker/u8:200:09:043
1553992219,2cyclictest8068-21kworker/u8:023:48:042
155299221,3cyclictest0-21swapper/100:06:351
1554992118,2cyclictest4653-21kworker/u8:200:20:013
1554992118,2cyclictest3223-21kworker/u8:322:39:043
1554992118,2cyclictest30900-21kworker/u8:000:13:043
1554992118,2cyclictest30219-21kworker/u8:121:33:043
1554992118,2cyclictest1273-21kworker/u8:023:10:043
1554992118,2cyclictest11021-21kworker/u8:221:14:043
1554992118,2cyclictest10989-21kworker/u8:100:33:043
155499210,17cyclictest0-21swapper/322:16:013
155499210,17cyclictest0-21swapper/322:16:013
1553992118,2cyclictest15990-21kworker/u8:223:57:042
155299211,3cyclictest0-21swapper/120:50:131
155299211,3cyclictest0-21swapper/120:30:141
155299210,3cyclictest27729-21modprobe21:55:151
155299210,3cyclictest0-21swapper/121:50:191
155299210,3cyclictest0-21swapper/100:03:551
155299210,19cyclictest0-21swapper/123:23:191
155499202,2cyclictest0-21swapper/321:41:043
1554992017,2cyclictest5192-21kworker/u8:119:49:043
1554992017,2cyclictest5192-21kworker/u8:119:18:013
1554992017,2cyclictest27610-21kworker/u8:020:20:043
1554992017,2cyclictest27610-21kworker/u8:020:17:043
1554992017,2cyclictest20679-21kworker/u8:100:01:023
1554992017,2cyclictest1926-21kworker/u8:219:13:043
1554992017,2cyclictest18336-21kworker/u8:219:55:043
1554992017,2cyclictest18336-21kworker/u8:219:53:043
1554992017,2cyclictest11021-21kworker/u8:221:07:043
1554992017,2cyclictest11021-21kworker/u8:221:00:043
155499200,2cyclictest0-21swapper/321:18:043
155499200,16cyclictest0-21swapper/323:25:043
1553992017,2cyclictest24505-21kworker/u8:322:02:042
1553992017,2cyclictest12731-21kworker/u8:021:54:042
155299200,3cyclictest6256-21munin-node1
155299200,3cyclictest5837-21sh23:12:191
155299200,3cyclictest26945-21sh23:34:431
155299200,3cyclictest15895-21munin-node1
155299200,3cyclictest13551-21sh23:53:391
155299200,3cyclictest0-21swapper/123:35:151
155299200,3cyclictest0-21swapper/123:26:191
155299200,3cyclictest0-21swapper/123:18:431
155299200,3cyclictest0-21swapper/123:09:551
155299200,3cyclictest0-21swapper/121:05:151
155299200,3cyclictest0-21swapper/119:30:131
155299200,2cyclictest0-21swapper/121:13:471
155299200,18cyclictest0-21swapper/122:45:181
155299200,12cyclictest7713-21df_inode19:25:141
1554991916,2cyclictest5192-21kworker/u8:120:05:043
1554991916,2cyclictest24630-21kworker/u8:220:25:043
1554991916,2cyclictest11021-21kworker/u8:220:59:043
155499190,2cyclictest0-21swapper/323:38:043
155499190,2cyclictest0-21swapper/322:58:043
155499190,2cyclictest0-21swapper/321:56:053
155499190,17cyclictest0-21swapper/320:04:013
1553991916,2cyclictest15990-21kworker/u8:200:08:002
155299191,3cyclictest0-21swapper/121:25:161
155299191,3cyclictest0-21swapper/119:40:151
155299191,3cyclictest0-21swapper/100:34:081
1552991910,7cyclictest0-21swapper/122:56:061
155299190,3cyclictest4849-21expr22:05:141
155299190,3cyclictest0-21swapper/121:31:511
155299190,2cyclictest0-21swapper/123:55:121
155299190,2cyclictest0-21swapper/122:02:181
155299190,17cyclictest15145-21diskmemload21:38:061
155299190,12cyclictest15145-21diskmemload22:11:171
155299190,12cyclictest0-21swapper/120:44:541
1554991815,2cyclictest5192-21kworker/u8:119:28:043
1554991815,2cyclictest5192-21kworker/u8:119:21:043
1554991815,2cyclictest24630-21kworker/u8:220:12:043
155499180,9cyclictest0-21swapper/323:20:013
155499180,2cyclictest0-21swapper/323:40:043
155499180,2cyclictest0-21swapper/320:34:043
1553991815,2cyclictest3223-21kworker/u8:323:12:042
1553991815,2cyclictest3223-21kworker/u8:322:42:052
1553991815,2cyclictest30900-21kworker/u8:000:23:042
1553991815,2cyclictest30219-21kworker/u8:121:31:032
1553991815,2cyclictest24505-21kworker/u8:321:56:012
1553991815,2cyclictest23230-21kworker/u8:022:29:042
1553991815,2cyclictest10989-21kworker/u8:100:38:012
155399180,5cyclictest0-21swapper/223:27:042
155299181,3cyclictest22898-21munin-node1
155299181,3cyclictest0-21swapper/123:40:391
155299181,15cyclictest28634-21munin-node1
155299180,3cyclictest4847-21ntp_states19:15:191
155299180,3cyclictest26603-21munin-node1
155299180,3cyclictest1570-21latency_hist00:15:001
155299180,3cyclictest0-21swapper/120:55:181
155299180,3cyclictest0-21swapper/100:26:311
155299180,2cyclictest0-21swapper/122:43:561
155299180,11cyclictest0-21swapper/100:23:081
155199180,16cyclictest0-21swapper/021:53:040
1554991714,2cyclictest1347-21kworker/u8:120:40:043
155499171,2cyclictest0-21swapper/320:35:043
155499170,2cyclictest0-21swapper/323:49:043
155499170,2cyclictest0-21swapper/320:49:043
1553991714,2cyclictest20679-21kworker/u8:123:52:042
1553991714,2cyclictest12731-21kworker/u8:021:48:042
1553991714,2cyclictest11021-21kworker/u8:221:15:042
155399170,15cyclictest0-21swapper/223:07:042
155299171,3cyclictest21852-21egrep00:35:141
155299171,3cyclictest0-21swapper/121:40:131
155299171,3cyclictest0-21swapper/121:00:181
155299171,3cyclictest0-21swapper/100:15:151
155299170,3cyclictest0-21swapper/120:36:021
155299170,2cyclictest0-21swapper/120:45:111
155299170,15cyclictest0-21swapper/121:47:231
155199170,5cyclictest0-21swapper/023:42:040
155499160,2cyclictest0-21swapper/319:40:043
155499160,2cyclictest0-21swapper/319:35:043
1553991613,2cyclictest5192-21kworker/u8:119:32:012
1553991613,2cyclictest27610-21kworker/u8:020:18:012
1553991613,2cyclictest24630-21kworker/u8:220:21:042
1553991613,2cyclictest15545-21kworker/u8:021:25:042
1553991613,2cyclictest14357-21kworker/u8:122:22:012
1553991613,2cyclictest12731-21kworker/u8:021:44:042
1553991613,2cyclictest10989-21kworker/u8:100:28:042
155399160,14cyclictest0-21swapper/200:30:042
155299167,7cyclictest14705-21diskstats22:15:131
155299167,7cyclictest14705-21diskstats22:15:131
155299165,2cyclictest0-21swapper/121:15:191
155299161,3cyclictest4405-21sh22:37:421
155299161,13cyclictest17232-21apt-get19:50:111
1552991611,3cyclictest0-21swapper/119:55:121
155299160,14cyclictest0-21swapper/120:01:031
155199161,13cyclictest3728-21runrttasks00:17:000
155199160,14cyclictest0-21swapper/022:00:490
1554991511,2cyclictest0-21swapper/300:25:023
155399152,2cyclictest0-21swapper/221:23:502
1553991512,2cyclictest30900-21kworker/u8:000:12:042
1553991512,2cyclictest24505-21kworker/u8:322:13:042
1553991512,2cyclictest1347-21kworker/u8:120:33:042
155399150,2cyclictest0-21swapper/223:22:042
155399150,2cyclictest0-21swapper/222:09:042
155399150,13cyclictest0-21swapper/223:02:042
155299151,3cyclictest0-21swapper/120:10:131
155299151,3cyclictest0-21swapper/119:35:111
155299151,3cyclictest0-21swapper/119:10:121
155199151,3cyclictest18018-21ssh00:30:380
155199150,4cyclictest0-21swapper/023:55:010
155199150,3cyclictest0-21swapper/021:03:040
155499140,2cyclictest0-21swapper/323:15:423
155499140,2cyclictest0-21swapper/322:11:513
155499140,2cyclictest0-21swapper/319:34:053
1553991411,2cyclictest5192-21kworker/u8:119:59:042
1553991411,2cyclictest3223-21kworker/u8:322:46:042
1553991411,2cyclictest27610-21kworker/u8:020:55:042
1553991411,2cyclictest24630-21kworker/u8:220:28:042
1553991411,2cyclictest24630-21kworker/u8:220:11:042
155199146,6cyclictest3900-21ssh22:37:040
1551991411,2cyclictest6436-21ssh23:45:490
1551991411,2cyclictest0-21swapper/023:01:290
1551991411,2cyclictest0-21swapper/000:29:200
1551991411,2cyclictest0-21swapper/000:10:500
155199140,2cyclictest0-21swapper/023:25:090
155199140,2cyclictest0-21swapper/022:44:190
155199140,2cyclictest0-21swapper/021:15:150
155199140,13cyclictest0-21swapper/022:24:290
155199140,13cyclictest0-21swapper/020:10:490
155199140,12cyclictest12878-21sh23:52:370
155199140,12cyclictest0-21swapper/023:12:380
155199140,12cyclictest0-21swapper/022:56:000
155199140,12cyclictest0-21swapper/022:30:170
155199140,12cyclictest0-21swapper/022:19:270
155199140,12cyclictest0-21swapper/022:19:270
155199140,12cyclictest0-21swapper/021:35:120
155199140,12cyclictest0-21swapper/021:26:050
155499137,4cyclictest0-21swapper/321:35:423
1554991310,2cyclictest0-21swapper/323:04:033
155499130,2cyclictest0-21swapper/323:31:123
155499130,2cyclictest0-21swapper/321:50:043
155399131,10cyclictest0-21swapper/221:05:122
1553991310,2cyclictest7420-21kworker/u8:019:45:042
1553991310,2cyclictest7420-21kworker/u8:019:41:042
1553991310,2cyclictest5192-21kworker/u8:120:02:042
155399130,12cyclictest0-21swapper/222:53:562
1551991310,2cyclictest15736-21apt-get22:50:060
1551991310,2cyclictest0-21swapper/023:16:040
1551991310,2cyclictest0-21swapper/022:49:570
1551991310,2cyclictest0-21swapper/021:31:440
1551991310,2cyclictest0-21swapper/020:55:140
1551991310,2cyclictest0-21swapper/019:25:190
1551991310,2cyclictest0-21swapper/000:36:460
155199130,2cyclictest13648-21ssh23:20:160
155199130,2cyclictest0-21swapper/023:07:590
155199130,2cyclictest0-21swapper/022:07:010
155199130,2cyclictest0-21swapper/020:45:120
155199130,2cyclictest0-21swapper/020:20:170
155199130,2cyclictest0-21swapper/020:15:160
155199130,12cyclictest26825-21ssh00:06:300
155199130,12cyclictest0-21swapper/022:26:040
155199130,12cyclictest0-21swapper/022:11:210
155199130,12cyclictest0-21swapper/021:41:090
155199130,12cyclictest0-21swapper/021:10:290
155199130,11cyclictest0-21swapper/021:55:020
155499129,2cyclictest0-21swapper/321:22:023
155499127,3cyclictest11070-21rm23:50:273
155499120,11cyclictest0-21swapper/322:31:123
155399129,2cyclictest1347-21kworker/u8:120:36:012
155399129,2cyclictest1077-21kworker/u8:223:44:032
155399129,2cyclictest0-21swapper/222:55:152
155399129,2cyclictest0-21swapper/221:10:162
155399120,2cyclictest0-21swapper/221:39:042
155399120,11cyclictest0-21swapper/222:38:372
155399120,11cyclictest0-21swapper/222:16:052
155399120,11cyclictest0-21swapper/222:16:052
155399120,11cyclictest0-21swapper/220:47:042
155399120,10cyclictest0-21swapper/223:39:442
155199129,2cyclictest0-21swapper/021:45:030
155199129,2cyclictest0-21swapper/020:25:160
155199129,2cyclictest0-21swapper/020:05:150
155199129,2cyclictest0-21swapper/019:44:550
155199129,2cyclictest0-21swapper/019:23:590
155199129,2cyclictest0-21swapper/000:21:170
155199129,2cyclictest0-21swapper/000:00:030
155199120,2cyclictest0-21swapper/023:35:040
155199120,11cyclictest0-21swapper/023:30:030
155199120,11cyclictest0-21swapper/021:21:360
155199120,11cyclictest0-21swapper/020:51:010
155199120,11cyclictest0-21swapper/020:00:400
155199120,11cyclictest0-21swapper/019:55:500
155199120,11cyclictest0-21swapper/019:35:160
155199120,11cyclictest0-21swapper/019:10:110
155399118,2cyclictest27610-21kworker/u8:020:43:042
155399118,2cyclictest11021-21kworker/u8:221:02:042
155399111,2cyclictest0-21swapper/219:35:092
155399110,2cyclictest0-21swapper/220:51:042
155399110,2cyclictest0-21swapper/220:05:122
155399110,2cyclictest0-21swapper/219:50:042
155199118,2cyclictest0-21swapper/021:05:510
155399105,3cyclictest6925-21sendmail-mta19:24:432
155399105,3cyclictest1997-21tr19:10:122
155199107,2cyclictest0-21swapper/020:35:050
155199102,5cyclictest0-21swapper/019:16:590
155199100,9cyclictest0-21swapper/020:34:250
15539994,3cyclictest3457-21sendmail-mta19:15:032
15519996,2cyclictest0-21swapper/019:50:160
15519996,2cyclictest0-21swapper/019:46:210
15519990,6cyclictest0-21swapper/020:41:380
15519980,5cyclictest0-21swapper/019:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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