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2026-09-08 - 05:59

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 376 highest latencies:
System rack3slot6s.osadl.org (updated Tue Sep 08, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1553211692,19sleep00-21swapper/019:08:560
1494210989,14sleep30-21swapper/319:08:123
1457210881,6sleep10-21swapper/119:07:411
1565210579,6sleep20-21swapper/219:09:062
36602770,0sleep00-21swapper/023:38:190
36162760,1sleep20-21swapper/222:33:042
115212750,1sleep00-21swapper/000:18:510
233192730,0sleep20-21swapper/200:30:192
262612700,0sleep00-21swapper/021:50:160
1662993917,20cyclictest22681-21rm23:25:130
1664993717,18cyclictest0-21swapper/221:40:132
166599330,31cyclictest0-21swapper/323:20:123
1665993214,16cyclictest5388-21ssh22:35:123
1664993128,2cyclictest530-21kworker/u8:221:32:062
1664992926,2cyclictest22983-21kworker/u8:221:52:052
20522280,1sleep00-21swapper/000:09:490
1664992825,2cyclictest530-21kworker/u8:221:28:042
1664992825,2cyclictest17789-21kworker/u8:222:20:062
1664992825,2cyclictest15368-21kworker/u8:023:53:042
21682270,1sleep20-21swapper/220:30:162
1664992724,2cyclictest30842-21kworker/u8:022:28:012
1664992724,2cyclictest30208-21kworker/u8:223:09:042
1664992724,2cyclictest17479-21kworker/u8:121:48:062
166299270,2cyclictest0-21swapper/022:00:100
1665992623,2cyclictest10423-21kworker/u8:123:19:043
1664992623,2cyclictest4434-21kworker/u8:023:31:042
1664992623,2cyclictest17479-21kworker/u8:121:57:052
1665992522,2cyclictest28656-21kworker/u8:021:53:043
1664992522,2cyclictest10491-21kworker/u8:222:48:052
1665992421,2cyclictest24861-21kworker/u8:122:58:053
1664992421,2cyclictest30873-21kworker/u8:223:43:042
1664992421,2cyclictest28656-21kworker/u8:022:02:042
1664992421,2cyclictest22714-21kworker/u8:123:38:062
1664992421,2cyclictest19754-21kworker/u8:323:57:042
1664992421,2cyclictest19754-21kworker/u8:300:02:052
1664992421,2cyclictest12788-21kworker/u8:200:23:052
43922230,1sleep04390-21ssh00:11:060
1665992320,2cyclictest8087-21kworker/u8:122:09:053
1665992320,2cyclictest530-21kworker/u8:221:31:053
1665992320,2cyclictest530-21kworker/u8:221:27:043
1665992320,2cyclictest4112-21kworker/u8:023:39:043
1665992320,2cyclictest25827-21kworker/u8:121:22:053
1665992320,2cyclictest24861-21kworker/u8:122:50:043
1665992320,2cyclictest19754-21kworker/u8:300:06:043
1664992320,2cyclictest30101-21kworker/u8:021:20:052
1664992320,2cyclictest23781-21kworker/u8:020:08:022
1665992219,2cyclictest30873-21kworker/u8:223:49:053
1665992219,2cyclictest30814-21kworker/u8:100:39:053
1665992219,2cyclictest24861-21kworker/u8:122:24:053
1665992219,2cyclictest18078-21kworker/u8:221:17:053
1665992219,2cyclictest17789-21kworker/u8:222:19:043
1665992219,2cyclictest11792-21kworker/u8:021:43:053
1665992217,3cyclictest13819-21kworker/u8:119:51:053
166599221,2cyclictest0-21swapper/322:40:113
1664992219,2cyclictest30208-21kworker/u8:223:03:042
1664992219,2cyclictest24861-21kworker/u8:122:55:052
1664992219,2cyclictest19823-21kworker/u8:000:28:042
1664992219,2cyclictest17097-21kworker/u8:223:24:052
1664992219,2cyclictest13819-21kworker/u8:120:17:052
1665992118,2cyclictest28656-21kworker/u8:022:12:043
1665992118,2cyclictest26476-21kworker/u8:100:18:043
1665992118,2cyclictest24861-21kworker/u8:122:30:063
1665992118,2cyclictest1965-21kworker/u8:222:00:043
1665992118,2cyclictest10423-21kworker/u8:123:14:053
1664992118,2cyclictest4877-21kworker/u8:000:15:042
1664992118,2cyclictest30208-21kworker/u8:223:11:052
1664992118,2cyclictest11121-21kworker/u8:019:32:042
1664992118,2cyclictest10423-21kworker/u8:123:15:042
166499210,19cyclictest0-21swapper/219:40:102
166499210,17cyclictest0-21swapper/222:42:012
166499210,16cyclictest0-21swapper/222:05:052
166299210,19cyclictest0-21swapper/019:40:100
1665992017,2cyclictest23781-21kworker/u8:020:07:053
1665992017,2cyclictest20267-21kworker/u8:220:01:043
1665992017,2cyclictest19823-21kworker/u8:000:30:043
1665992017,2cyclictest15368-21kworker/u8:023:52:053
1665992011,5cyclictest274-21jbd2/sda1-821:56:063
166599200,2cyclictest0-21swapper/320:40:123
166599200,16cyclictest0-21swapper/323:34:053
166599200,15cyclictest0-21swapper/323:28:043
166599200,15cyclictest0-21swapper/320:19:053
1664992017,2cyclictest20267-21kworker/u8:219:58:052
1664992017,2cyclictest1944-21kworker/u8:219:24:052
1664992017,2cyclictest18078-21kworker/u8:221:12:042
1664992017,2cyclictest17097-21kworker/u8:223:25:042
166399200,19cyclictest0-21swapper/123:45:121
166399200,18cyclictest0-21swapper/123:20:121
1665991916,2cyclictest24861-21kworker/u8:123:01:043
1665991916,2cyclictest19754-21kworker/u8:323:56:053
1665991916,2cyclictest1944-21kworker/u8:219:22:053
1665991916,2cyclictest17479-21kworker/u8:121:45:043
1665991916,2cyclictest13819-21kworker/u8:119:44:063
1665991916,2cyclictest11792-21kworker/u8:021:39:043
166599190,2cyclictest0-21swapper/323:08:053
166599190,2cyclictest0-21swapper/300:29:043
166599190,2cyclictest0-21swapper/300:00:043
1664991916,2cyclictest3246-21kworker/u8:120:35:042
1664991916,2cyclictest30101-21kworker/u8:020:25:042
1664991916,2cyclictest24861-21kworker/u8:122:54:012
1664991916,2cyclictest13819-21kworker/u8:119:48:042
1664991916,2cyclictest11121-21kworker/u8:019:37:052
1664991916,2cyclictest11121-21kworker/u8:019:37:042
166499190,2cyclictest0-21swapper/200:09:042
166499190,18cyclictest0-21swapper/220:49:042
166499190,15cyclictest0-21swapper/221:07:052
1665991815,2cyclictest30101-21kworker/u8:021:01:043
1665991815,2cyclictest30101-21kworker/u8:020:54:053
1665991815,2cyclictest30101-21kworker/u8:020:46:043
1665991815,2cyclictest30101-21kworker/u8:020:22:043
1665991815,2cyclictest1944-21kworker/u8:219:29:043
1665991815,2cyclictest10491-21kworker/u8:222:47:053
166599180,11cyclictest0-21swapper/323:44:013
1664991815,2cyclictest26034-21kworker/u8:119:13:052
1664991815,2cyclictest1944-21kworker/u8:219:18:042
1665991714,2cyclictest30101-21kworker/u8:020:37:043
1665991714,2cyclictest11121-21kworker/u8:019:34:053
166599170,12cyclictest0-21swapper/321:13:043
1664991714,2cyclictest26277-21kworker/u8:220:14:042
1664991714,2cyclictest19823-21kworker/u8:000:36:052
166499170,2cyclictest0-21swapper/222:39:042
166499170,13cyclictest0-21swapper/223:46:052
166299170,2cyclictest0-21swapper/021:45:130
166599161,13cyclictest27702-21users20:11:033
1664991613,2cyclictest1944-21kworker/u8:219:28:042
166499160,2cyclictest0-21swapper/220:02:042
166499160,2cyclictest0-21swapper/200:10:062
1663991611,3cyclictest17977-21ssh21:10:111
166399160,13cyclictest2849-21rs:main1
166299162,7cyclictest0-21swapper/022:11:590
1665991512,2cyclictest20267-21kworker/u8:219:57:043
1665991512,2cyclictest1944-21kworker/u8:219:17:043
166599150,2cyclictest0-21swapper/322:27:043
166399153,10cyclictest0-21swapper/120:10:121
1663991512,2cyclictest0-21swapper/119:25:121
1663991510,3cyclictest19405-21munin-node1
166399150,2cyclictest0-21swapper/121:05:221
1662991510,3cyclictest25217-21ssh22:55:120
1665991411,2cyclictest26277-21kworker/u8:220:32:053
1665991411,2cyclictest26277-21kworker/u8:220:29:053
1665991411,2cyclictest13819-21kworker/u8:119:45:043
166599140,2cyclictest0-21swapper/319:35:043
166599140,2cyclictest0-21swapper/319:35:043
166499140,2cyclictest0-21swapper/220:40:052
166399149,3cyclictest21714-21cut21:45:411
166399141,2cyclictest31079-21sendmail-mta23:34:371
1663991411,2cyclictest0-21swapper/123:27:011
1663991411,2cyclictest0-21swapper/123:16:211
1663991411,2cyclictest0-21swapper/122:44:211
1663991411,2cyclictest0-21swapper/119:50:141
166399140,3cyclictest26794-21ssh00:34:261
166399140,3cyclictest15274-21ls21:40:001
166399140,2cyclictest17626-21diskmemload23:56:111
166399140,2cyclictest0-21swapper/122:58:111
166399140,13cyclictest0-21swapper/122:38:321
166399140,13cyclictest0-21swapper/122:04:111
166399140,12cyclictest25641-21cut21:50:121
166399140,12cyclictest1769-21sh22:30:561
166399140,12cyclictest11264-21sendmail-mta23:14:371
166399140,12cyclictest0-21swapper/123:40:141
166399140,12cyclictest0-21swapper/122:50:201
166299149,3cyclictest27016-21rm00:34:460
166299142,7cyclictest0-21swapper/019:50:010
166299142,6cyclictest0-21swapper/000:19:590
1662991411,2cyclictest0-21swapper/019:31:020
166299140,2cyclictest0-21swapper/019:10:200
166299140,12cyclictest27711-21chrt00:02:040
166299140,12cyclictest18835-21modprobe19:50:160
166299140,12cyclictest0-21swapper/022:35:010
120362141,2sleep00-21swapper/021:36:030
166599139,3cyclictest26476-21kworker/u8:100:11:053
1665991310,2cyclictest13929-21kworker/u8:121:06:023
1665991310,2cyclictest0-21swapper/319:11:053
166499132,6cyclictest0-21swapper/221:14:592
1664991310,2cyclictest0-21swapper/219:50:182
166499130,12cyclictest0-21swapper/222:12:152
166399131,10cyclictest31622-21sendmail-mta20:25:531
166399131,10cyclictest17626-21diskmemload21:55:131
1663991310,2cyclictest17626-21diskmemload21:15:301
1663991310,2cyclictest16476-21ssh00:23:491
1663991310,2cyclictest0-21swapper/123:08:141
1663991310,2cyclictest0-21swapper/122:29:441
1663991310,2cyclictest0-21swapper/121:40:161
1663991310,2cyclictest0-21swapper/121:30:011
1663991310,2cyclictest0-21swapper/120:00:121
1663991310,2cyclictest0-21swapper/100:03:031
166399130,3cyclictest0-21swapper/122:06:411
166399130,2cyclictest0-21swapper/120:55:121
166399130,2cyclictest0-21swapper/119:56:051
166399130,2cyclictest0-21swapper/100:11:001
166399130,11cyclictest0-21swapper/123:50:171
166299138,3cyclictest22761-21ssh22:20:070
166299138,3cyclictest0-21swapper/020:40:150
166299131,7cyclictest0-21swapper/022:50:000
166299131,6cyclictest0-21swapper/019:30:010
1662991310,2cyclictest17626-21diskmemload22:25:010
1662991310,2cyclictest12807-21ssh22:41:430
1662991310,2cyclictest0-21swapper/023:40:170
1662991310,2cyclictest0-21swapper/023:34:220
1662991310,2cyclictest0-21swapper/023:13:130
1662991310,2cyclictest0-21swapper/021:44:300
166299130,2cyclictest160452sleep023:50:220
166299130,2cyclictest0-21swapper/023:48:510
166299130,2cyclictest0-21swapper/023:01:220
166299130,12cyclictest0-21swapper/022:16:030
166299130,12cyclictest0-21swapper/000:27:240
166299130,11cyclictest0-21swapper/023:15:320
166299130,11cyclictest0-21swapper/000:36:320
230592120,1sleep00-21swapper/021:15:130
166599129,2cyclictest12788-21kworker/u8:200:21:053
166599120,1cyclictest0-21swapper/320:55:393
166499129,2cyclictest0-21swapper/221:35:042
166499120,2cyclictest0-21swapper/221:02:042
166499120,2cyclictest0-21swapper/220:23:042
166499120,11cyclictest0-21swapper/222:16:272
166399129,2cyclictest0-21swapper/122:45:501
166399129,2cyclictest0-21swapper/121:26:111
166399121,9cyclictest6193-21sendmail-mta00:15:291
166399120,2cyclictest0-21swapper/122:10:021
166399120,11cyclictest0-21swapper/123:36:501
166399120,11cyclictest0-21swapper/123:01:271
166399120,11cyclictest0-21swapper/120:50:111
166399120,11cyclictest0-21swapper/120:35:401
166399120,11cyclictest0-21swapper/120:15:191
166399120,11cyclictest0-21swapper/100:35:361
166399120,11cyclictest0-21swapper/100:25:431
166399120,11cyclictest0-21swapper/100:05:311
166399120,10cyclictest17626-21diskmemload21:20:161
166299129,2cyclictest17626-21diskmemload23:06:300
166299129,2cyclictest0-21swapper/023:56:500
166299129,2cyclictest0-21swapper/023:20:270
166299129,2cyclictest0-21swapper/022:45:090
166299129,2cyclictest0-21swapper/022:30:410
166299129,2cyclictest0-21swapper/021:27:000
166299129,2cyclictest0-21swapper/021:04:230
166299129,2cyclictest0-21swapper/020:30:170
166299129,2cyclictest0-21swapper/020:05:140
166299129,2cyclictest0-21swapper/019:35:170
166299129,2cyclictest0-21swapper/019:35:160
166299127,3cyclictest29239-21sh21:20:420
166299127,3cyclictest0-21swapper/020:35:040
166299120,7cyclictest0-21swapper/020:30:000
166299120,2cyclictest0-21swapper/021:55:390
166299120,2cyclictest0-21swapper/020:50:150
166299120,11cyclictest0-21swapper/022:05:330
166299120,11cyclictest0-21swapper/021:30:040
166299120,11cyclictest0-21swapper/021:10:030
166299120,11cyclictest0-21swapper/020:15:130
166499118,2cyclictest0-21swapper/220:54:062
166499111,5cyclictest0-21swapper/221:00:002
166399118,2cyclictest0-21swapper/120:45:161
166399117,2cyclictest0-21swapper/120:40:131
166399111,8cyclictest6093-21apt-get19:20:101
166399111,8cyclictest30869-21ntp_states20:20:181
166399111,8cyclictest0-21swapper/119:10:161
166399110,9cyclictest0-21swapper/119:40:121
166399110,10cyclictest0-21swapper/119:31:011
166299118,2cyclictest0-21swapper/020:20:170
166299111,3cyclictest16427-21wget21:05:170
166299110,9cyclictest0-21swapper/020:55:120
166299110,10cyclictest0-21swapper/020:14:010
166299110,10cyclictest0-21swapper/019:24:020
166399105,3cyclictest25415-21cat20:06:041
166399100,9cyclictest0-21swapper/119:45:261
166399100,8cyclictest1525-21munin-node1
166399100,8cyclictest13834-21dpkg21:00:131
166399100,8cyclictest0-21swapper/119:15:111
166299107,2cyclictest0-21swapper/020:00:150
166299105,3cyclictest21146-21ps19:55:200
166299101,7cyclictest8366-21sh20:45:150
166299100,3cyclictest4664-21hwlatdetect19:15:150
16639994,3cyclictest11758-21sendmail-mta19:35:131
16639994,3cyclictest11758-21sendmail-mta19:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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