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2026-09-07 - 10:22

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 Sep 07, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22218211794,17sleep20-21swapper/219:05:102
239752115104,6sleep10-21swapper/119:09:381
23734210989,15sleep30-21swapper/319:06:313
23939210686,15sleep00-21swapper/019:09:090
43932680,0sleep20-21swapper/200:23:212
178852680,0sleep30-21swapper/323:31:033
2403299430,18cyclictest0-21swapper/321:30:143
2402999360,34cyclictest0-21swapper/023:20:120
24031992724,2cyclictest25003-21kworker/u8:121:35:042
24031992623,2cyclictest8894-21kworker/u8:221:18:012
24031992623,2cyclictest6165-21kworker/u8:122:52:012
294372220,1sleep20-21swapper/223:43:302
24031992219,2cyclictest442-21kworker/u8:021:29:042
24031992219,2cyclictest3189-21kworker/u8:023:19:042
24031992219,2cyclictest21759-21kworker/u8:123:03:052
2403099221,19cyclictest0-21swapper/122:00:101
2403299210,19cyclictest0-21swapper/300:10:133
24031992118,2cyclictest25003-21kworker/u8:121:33:042
2403199210,18cyclictest0-21swapper/223:57:052
2403199210,18cyclictest0-21swapper/223:52:052
2403099211,2cyclictest0-21swapper/120:10:111
2403099210,19cyclictest0-21swapper/123:45:101
2402999210,19cyclictest0-21swapper/000:25:120
2403299200,18cyclictest0-21swapper/322:00:103
24031992017,2cyclictest4339-21kworker/u8:200:26:022
24031992017,2cyclictest19878-21kworker/u8:023:37:042
24031992017,2cyclictest18575-21kworker/u8:122:00:042
24031992017,2cyclictest17198-21kworker/u8:220:28:042
24031992017,2cyclictest17198-21kworker/u8:220:17:042
24031992017,2cyclictest17198-21kworker/u8:220:17:032
24031992017,2cyclictest16065-21kworker/u8:122:34:032
2403199201,2cyclictest0-21swapper/222:37:052
24031991916,2cyclictest9302-21kworker/u8:223:34:012
24031991916,2cyclictest442-21kworker/u8:021:50:042
24031991916,2cyclictest20322-21kworker/u8:120:23:042
24031991916,2cyclictest17198-21kworker/u8:220:33:042
24031991916,2cyclictest16543-21kworker/u8:223:13:052
24031991916,2cyclictest16065-21kworker/u8:122:26:052
2403199190,2cyclictest0-21swapper/222:43:052
2403199190,2cyclictest0-21swapper/222:09:042
24029991916,2cyclictest25784-21kworker/u8:322:37:050
82852180,1sleep20-21swapper/222:16:242
24031991815,2cyclictest4114-21kworker/u8:119:43:042
24031991815,2cyclictest32464-21kworker/u8:019:34:042
24031991815,2cyclictest18575-21kworker/u8:121:56:042
2403199180,2cyclictest0-21swapper/222:58:032
2403199180,2cyclictest0-21swapper/222:24:042
2403199180,17cyclictest0-21swapper/223:29:042
2403199180,17cyclictest0-21swapper/219:23:042
2403099180,16cyclictest0-21swapper/100:10:121
2403299171,14cyclictest0-21swapper/319:15:153
24031991714,2cyclictest4339-21kworker/u8:200:33:052
24031991714,2cyclictest32464-21kworker/u8:019:50:042
24031991714,2cyclictest32464-21kworker/u8:019:35:042
24031991714,2cyclictest25908-21kworker/u8:223:45:042
24031991714,2cyclictest11892-21kworker/u8:120:00:042
2403199170,2cyclictest0-21swapper/221:47:042
2403199170,2cyclictest0-21swapper/221:20:042
2403199170,16cyclictest0-21swapper/222:49:052
24029991714,2cyclictest3725-21kworker/u8:222:04:010
24032991612,2cyclictest0-21swapper/320:55:063
24032991612,2cyclictest0-21swapper/300:31:023
24032991611,3cyclictest3047-21wc23:50:013
24031991613,2cyclictest442-21kworker/u8:021:10:052
24031991613,2cyclictest17198-21kworker/u8:220:43:032
2403199160,2cyclictest0-21swapper/200:15:052
2403099161,3cyclictest5367-21sed23:51:041
24030991611,3cyclictest0-21swapper/121:15:171
24029991613,2cyclictest442-21kworker/u8:021:49:050
181502160,0sleep10-21swapper/121:54:591
2403299151,3cyclictest0-21swapper/323:43:463
24032991510,3cyclictest0-21swapper/321:51:453
2403299150,13cyclictest3649-21snmpd23:56:213
2403299150,13cyclictest0-21swapper/321:35:293
24031991512,2cyclictest442-21kworker/u8:021:03:042
24031991512,2cyclictest25916-21kworker/u8:020:38:042
24031991511,3cyclictest8304-21ssh23:21:332
2403199150,2cyclictest0-21swapper/221:44:002
2403199150,2cyclictest0-21swapper/200:09:042
2403199150,13cyclictest0-21swapper/219:49:042
2403099151,3cyclictest29472-21sendmail-mta21:35:491
2403099151,12cyclictest11397-21hddtemp_smartct00:30:151
2403099150,13cyclictest6640-21diskmemload23:20:191
2403099150,11cyclictest0-21swapper/122:10:171
24029991512,2cyclictest3725-21kworker/u8:222:09:050
24029991512,2cyclictest30946-21kworker/u8:022:43:050
24029991512,2cyclictest25908-21kworker/u8:223:52:050
2402999150,2cyclictest0-21swapper/022:24:570
2402999150,14cyclictest0-21swapper/021:54:580
2402999150,13cyclictest0-21swapper/023:00:150
2403299149,3cyclictest19189-21ssh21:55:153
24032991411,2cyclictest0-21swapper/320:40:163
24032991411,2cyclictest0-21swapper/300:00:133
24032991410,2cyclictest0-21swapper/321:10:183
2403299140,3cyclictest0-21swapper/323:16:313
2403299140,13cyclictest0-21swapper/319:40:163
2403299140,12cyclictest12554-21ssh22:54:103
2403299140,12cyclictest0-21swapper/323:02:553
2403299140,12cyclictest0-21swapper/322:10:203
2403299140,12cyclictest0-21swapper/300:25:003
24031991411,2cyclictest28256-21kworker/u8:121:06:032
24031991411,2cyclictest28256-21kworker/u8:120:52:042
2403199140,2cyclictest0-21swapper/219:56:042
2403199140,12cyclictest0-21swapper/200:11:562
2403199140,11cyclictest0-21swapper/220:06:042
2403099142,7cyclictest0-21swapper/121:30:001
2403099142,7cyclictest0-21swapper/119:40:001
2403099141,11cyclictest0-21swapper/100:00:521
2403099140,3cyclictest27496-21threads19:16:031
2403099140,2cyclictest0-21swapper/120:55:061
2403099140,2cyclictest0-21swapper/119:30:151
2403099140,13cyclictest0-21swapper/120:05:191
2403099140,12cyclictest0-21swapper/100:35:131
2402999149,3cyclictest15116-21taskset21:19:030
24029991411,2cyclictest8894-21kworker/u8:221:26:040
24029991411,2cyclictest25908-21kworker/u8:223:42:010
24029991411,2cyclictest25003-21kworker/u8:121:39:040
24029991411,2cyclictest0-21swapper/022:55:280
24029991411,2cyclictest0-21swapper/000:20:480
2402999140,2cyclictest0-21swapper/021:43:180
2402999140,13cyclictest0-21swapper/022:13:580
2402999140,13cyclictest0-21swapper/000:14:170
2402999140,12cyclictest0-21swapper/019:26:040
2402999140,12cyclictest0-21swapper/000:18:110
95672130,2sleep10-21swapper/122:18:201
24962130,2sleep22506-21ssh22:11:002
2403299139,2cyclictest3273-21ssh23:50:093
24032991310,2cyclictest6640-21diskmemload22:35:053
24032991310,2cyclictest15636-21ssh22:24:583
24032991310,2cyclictest0-21swapper/322:56:073
24032991310,2cyclictest0-21swapper/322:45:313
24032991310,2cyclictest0-21swapper/322:34:223
24032991310,2cyclictest0-21swapper/321:42:173
24032991310,2cyclictest0-21swapper/319:20:593
24032991310,2cyclictest0-21swapper/319:11:043
24032991310,2cyclictest0-21swapper/300:36:063
2403299130,2cyclictest0-21swapper/323:20:123
2403299130,2cyclictest0-21swapper/323:05:113
2403299130,2cyclictest0-21swapper/320:15:183
2403299130,2cyclictest0-21swapper/320:15:173
2403299130,12cyclictest0-21swapper/323:35:183
2403299130,12cyclictest0-21swapper/322:25:153
2403299130,12cyclictest0-21swapper/321:45:303
24031991310,2cyclictest32464-21kworker/u8:020:11:042
24031991310,2cyclictest28256-21kworker/u8:120:59:042
24031991310,2cyclictest0-21swapper/200:35:332
2403199130,2cyclictest0-21swapper/223:06:402
2403099132,9cyclictest9201-21grep21:45:161
2403099132,6cyclictest0-21swapper/121:05:011
2403099132,6cyclictest0-21swapper/120:25:011
2403099132,6cyclictest0-21swapper/119:19:591
2403099131,3cyclictest0-21swapper/120:50:161
2403099131,10cyclictest2354-21mailstats00:21:021
2403099131,10cyclictest0-21swapper/120:40:141
24030991310,2cyclictest0-21swapper/123:30:201
24030991310,2cyclictest0-21swapper/122:26:031
24030991310,2cyclictest0-21swapper/121:14:401
2403099130,2cyclictest0-21swapper/119:35:131
2403099130,2cyclictest0-21swapper/119:11:051
2403099130,2cyclictest0-21swapper/100:05:441
2403099130,12cyclictest0-21swapper/122:05:161
2403099130,11cyclictest0-21swapper/123:40:411
2403099130,11cyclictest0-21swapper/122:59:421
2403099130,11cyclictest0-21swapper/122:45:011
2403099130,11cyclictest0-21swapper/122:35:051
2403099130,11cyclictest0-21swapper/122:30:511
2403099130,11cyclictest0-21swapper/121:56:211
2403099130,11cyclictest0-21swapper/120:30:401
24029991310,2cyclictest6640-21diskmemload21:23:290
24029991310,2cyclictest19878-21kworker/u8:023:57:050
24029991310,2cyclictest0-21swapper/023:45:170
24029991310,2cyclictest0-21swapper/023:31:040
24029991310,2cyclictest0-21swapper/023:15:380
24029991310,2cyclictest0-21swapper/023:12:470
24029991310,2cyclictest0-21swapper/023:05:080
24029991310,2cyclictest0-21swapper/022:50:180
24029991310,2cyclictest0-21swapper/022:33:490
24029991310,2cyclictest0-21swapper/022:19:360
24029991310,2cyclictest0-21swapper/021:31:320
24029991310,2cyclictest0-21swapper/021:11:170
24029991310,2cyclictest0-21swapper/000:33:240
24029991310,2cyclictest0-21swapper/000:05:190
24029991310,2cyclictest0-21swapper/000:03:280
2402999130,2cyclictest22507-21ssh21:59:040
2402999130,12cyclictest0-21swapper/023:29:380
2402999130,11cyclictest0-21swapper/000:35:150
148222130,2sleep20-21swapper/200:00:552
2403299129,2cyclictest0-21swapper/323:10:083
2403299129,2cyclictest0-21swapper/322:40:513
2403299129,2cyclictest0-21swapper/322:16:453
2403299129,2cyclictest0-21swapper/320:25:403
2403299129,2cyclictest0-21swapper/300:25:093
2403299129,2cyclictest0-21swapper/300:15:453
2403299129,2cyclictest0-21swapper/300:05:263
2403299122,7cyclictest0-21swapper/320:13:593
2403299120,2cyclictest0-21swapper/321:25:343
2403299120,2cyclictest0-21swapper/319:45:173
2403299120,11cyclictest13408-21ssh21:16:283
2403299120,11cyclictest0-21swapper/323:25:333
2403299120,11cyclictest0-21swapper/322:05:003
2403299120,11cyclictest0-21swapper/321:20:233
2403199129,2cyclictest0-21swapper/219:26:042
2403199120,11cyclictest0-21swapper/219:11:032
2403099129,2cyclictest0-21swapper/122:40:141
2403099129,2cyclictest0-21swapper/100:26:291
2403099127,3cyclictest24881-21ssh23:05:531
2403099127,3cyclictest22165-21munin-node1
2403099121,9cyclictest26020-21apt-get21:30:131
2403099121,3cyclictest11042-21apt-get22:20:101
2403099120,2cyclictest0-21swapper/123:25:541
2403099120,2cyclictest0-21swapper/123:14:141
2403099120,11cyclictest0-21swapper/123:35:041
2403099120,11cyclictest0-21swapper/123:03:241
2403099120,11cyclictest0-21swapper/122:51:051
2403099120,11cyclictest0-21swapper/121:44:031
2403099120,11cyclictest0-21swapper/121:24:421
2403099120,11cyclictest0-21swapper/119:45:151
2403099120,11cyclictest0-21swapper/100:15:491
2403099120,10cyclictest0-21swapper/123:15:021
2403099120,10cyclictest0-21swapper/120:00:011
2403099120,10cyclictest0-21swapper/119:51:011
2402999129,2cyclictest0-21swapper/023:35:050
2402999129,2cyclictest0-21swapper/022:45:310
2402999129,2cyclictest0-21swapper/020:25:500
2402999129,2cyclictest0-21swapper/019:45:010
2402999120,2cyclictest0-21swapper/022:25:230
2402999120,2cyclictest0-21swapper/020:45:410
2402999120,2cyclictest0-21swapper/019:30:010
2402999120,2cyclictest0-21swapper/019:15:180
2402999120,11cyclictest0-21swapper/020:30:190
2402999120,11cyclictest0-21swapper/019:55:150
2402999120,11cyclictest0-21swapper/019:14:060
2402999120,10cyclictest17914-21turbostat20:15:000
270952110,1sleep00-21swapper/020:35:190
2403299113,5cyclictest0-21swapper/319:51:013
2403299112,7cyclictest0-21swapper/319:28:023
2403299112,6cyclictest0-21swapper/319:31:013
2403299111,8cyclictest29477-21sendmail-mta20:46:083
2403299110,10cyclictest0-21swapper/320:54:573
2403099116,3cyclictest5510-21expr21:05:121
2403099111,8cyclictest12108-21munin-node1
2403099111,6cyclictest0-21swapper/120:16:251
2403099111,6cyclictest0-21swapper/120:16:251
2403099111,2cyclictest8384-21apt-get23:55:131
2403099110,9cyclictest29928-21aten2.4-expect20:45:131
2403099110,9cyclictest0-21swapper/120:36:031
2402999118,2cyclictest0-21swapper/019:54:200
2402999118,2cyclictest0-21swapper/019:35:250
2402999110,9cyclictest1864-21grep20:55:140
2402999110,2cyclictest0-21swapper/020:53:350
2402999110,2cyclictest0-21swapper/020:15:510
2402999110,2cyclictest0-21swapper/020:15:510
2402999110,10cyclictest0-21swapper/021:03:570
2402999110,10cyclictest0-21swapper/020:05:050
282902100,1sleep00-21swapper/019:20:110
2403299107,2cyclictest0-21swapper/321:00:183
2403299107,2cyclictest0-21swapper/320:30:133
2403299107,2cyclictest0-21swapper/320:23:443
2403299101,5cyclictest0-21swapper/320:10:013
2403199103,3cyclictest27064-21missed_timers19:15:172
2403199100,2cyclictest0-21swapper/220:45:122
2402999107,2cyclictest0-21swapper/019:43:230
2402999100,9cyclictest0-21swapper/020:23:310
112442100,1sleep30-21swapper/319:56:033
240329996,2cyclictest274-21jbd2/sda1-819:35:303
240329994,3cyclictest27488-21timerandwakeup20:36:033
240329992,6cyclictest0-21swapper/320:04:023
240329990,2cyclictest0-21swapper/321:05:303
240309990,3cyclictest30575-21cpuspeed_turbos19:25:131
240299990,7cyclictest5813-21tr21:05:150
240299990,7cyclictest0-21swapper/020:01:030
240299985,2cyclictest0-21swapper/020:43:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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