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2026-09-17 - 03:01

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 Thu Sep 17, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2652821220,1sleep13038899cyclictest23:05:161
30214211088,16sleep10-21swapper/119:08:091
29703210896,6sleep20-21swapper/219:06:012
29633210896,6sleep30-21swapper/319:05:503
28565210478,20sleep00-21swapper/019:05:030
319582720,0sleep00-21swapper/021:28:200
4392710,0sleep00-21swapper/023:46:030
17532690,2sleep212-21rcu_preempt23:13:552
266052680,0sleep00-21swapper/021:56:250
103532670,0sleep10-21swapper/122:48:041
30388995017,31cyclictest0-21swapper/122:00:111
3038799430,24cyclictest0-21swapper/020:35:100
30389992825,2cyclictest5502-21kworker/u8:222:18:052
30389992825,2cyclictest15651-21kworker/u8:121:23:052
30389992825,2cyclictest15651-21kworker/u8:121:18:052
318392270,1sleep1221ktimersoftd/123:45:161
30389992724,2cyclictest5502-21kworker/u8:222:12:052
30389992724,2cyclictest30779-21kworker/u8:123:48:052
30389992623,2cyclictest30680-21kworker/u8:023:38:012
30389992623,2cyclictest19944-21kworker/u8:120:31:042
30389992623,2cyclictest16426-21kworker/u8:121:51:042
30389992623,2cyclictest14481-21kworker/u8:222:52:042
30389992522,2cyclictest23984-21kworker/u8:000:27:042
30389992522,2cyclictest17914-21kworker/u8:200:16:042
30389992522,2cyclictest15651-21kworker/u8:121:37:052
30389992522,2cyclictest15651-21kworker/u8:121:27:042
30389992522,2cyclictest10728-21kworker/u8:223:34:042
30389992522,2cyclictest10398-21kworker/u8:021:57:042
3038999250,11cyclictest0-21swapper/222:48:042
30389992421,2cyclictest8416-21kworker/u8:119:36:052
30389992421,2cyclictest5453-21kworker/u8:123:22:042
30389992421,2cyclictest5453-21kworker/u8:123:17:042
30389992421,2cyclictest32364-21kworker/u8:022:06:042
30389992421,2cyclictest30779-21kworker/u8:100:05:042
30389992421,2cyclictest30779-21kworker/u8:100:05:042
30389992421,2cyclictest17914-21kworker/u8:200:10:052
30389992421,2cyclictest12452-21kworker/u8:220:01:052
30388992421,2cyclictest30779-21kworker/u8:100:02:041
277082240,1sleep1221ktimersoftd/123:40:401
30389992320,2cyclictest30779-21kworker/u8:100:04:052
30389992320,2cyclictest30680-21kworker/u8:023:43:042
30389992320,2cyclictest24875-21kworker/u8:123:05:042
30389992320,2cyclictest19944-21kworker/u8:120:09:042
30388992320,2cyclictest5502-21kworker/u8:222:21:041
30388992320,2cyclictest30680-21kworker/u8:023:12:011
30388992320,2cyclictest29797-21kworker/u8:122:58:041
3039099221,19cyclictest0-21swapper/322:35:503
30389992219,2cyclictest8416-21kworker/u8:119:44:042
30389992219,2cyclictest8022-21kworker/u8:121:04:012
30389992219,2cyclictest30126-21kworker/u8:119:24:042
30388992219,2cyclictest5453-21kworker/u8:123:18:051
3038799220,2cyclictest0-21swapper/020:55:120
30390992113,6cyclictest0-21swapper/323:55:113
30389992118,2cyclictest8022-21kworker/u8:120:54:042
30389992118,2cyclictest30126-21kworker/u8:119:25:042
30389992118,2cyclictest23984-21kworker/u8:000:30:042
30389992118,2cyclictest22635-21kworker/u8:220:19:042
30389992118,2cyclictest19944-21kworker/u8:120:27:052
30389992118,2cyclictest11627-21kworker/u8:019:15:042
3038999210,18cyclictest0-21swapper/222:33:042
3038999210,18cyclictest0-21swapper/200:37:052
30388992118,2cyclictest5502-21kworker/u8:222:37:041
30388992118,2cyclictest5502-21kworker/u8:222:14:041
30388992118,2cyclictest30680-21kworker/u8:023:56:041
30388992118,2cyclictest20149-21kworker/u8:023:02:041
30388992118,2cyclictest10398-21kworker/u8:021:52:041
3038899210,18cyclictest0-21swapper/122:08:041
30390992010,2cyclictest0-21swapper/322:56:163
3039099200,18cyclictest274-21jbd2/sda1-821:44:243
3039099200,18cyclictest0-21swapper/322:20:103
3039099200,11cyclictest0-21swapper/300:01:403
30389992017,2cyclictest983-21kworker/u8:221:31:042
30389992017,2cyclictest22635-21kworker/u8:220:20:042
30389992017,2cyclictest12365-21kworker/u8:021:09:042
3038999200,18cyclictest0-21swapper/223:52:062
3038999200,18cyclictest0-21swapper/221:46:052
3038899204,8cyclictest23-21ksoftirqd/100:14:051
30388992017,2cyclictest30680-21kworker/u8:023:30:011
30388992017,2cyclictest17914-21kworker/u8:200:17:041
3038899200,2cyclictest14172-21diskmemload21:40:131
3038899200,18cyclictest0-21swapper/100:08:051
3038899200,18cyclictest0-21swapper/100:08:041
3038799200,2cyclictest0-21swapper/023:40:120
3038799200,19cyclictest0-21swapper/022:55:120
3039099199,2cyclictest0-21swapper/323:46:553
30389991916,2cyclictest32704-21kworker/u8:220:37:042
3038999190,2cyclictest0-21swapper/223:59:042
3038999190,2cyclictest0-21swapper/222:28:052
3038999190,2cyclictest0-21swapper/222:04:042
3038999190,2cyclictest0-21swapper/221:42:042
3038999190,2cyclictest0-21swapper/200:20:042
3038999190,18cyclictest0-21swapper/220:44:042
30388991916,2cyclictest983-21kworker/u8:221:32:041
30388991916,2cyclictest4440-21kworker/u8:019:58:041
30388991916,2cyclictest19944-21kworker/u8:120:02:051
30388991916,2cyclictest15651-21kworker/u8:121:20:051
30388991916,2cyclictest10398-21kworker/u8:021:45:041
3038899190,2cyclictest0-21swapper/121:39:051
3038899190,14cyclictest0-21swapper/120:36:041
3038799190,2cyclictest0-21swapper/019:16:050
147092190,0sleep10-21swapper/122:52:261
3039099189,2cyclictest0-21swapper/323:29:063
3039099189,2cyclictest0-21swapper/321:18:343
3039099188,2cyclictest0-21swapper/321:38:023
3039099181,3cyclictest2849-21rs:main3
30390991810,2cyclictest0-21swapper/323:16:093
30390991810,2cyclictest0-21swapper/319:13:203
3039099180,2cyclictest0-21swapper/300:17:123
3039099180,11cyclictest0-21swapper/300:38:453
3039099180,10cyclictest0-21swapper/322:01:583
30389991815,2cyclictest4440-21kworker/u8:019:54:052
3038999180,17cyclictest0-21swapper/219:13:052
30388991815,2cyclictest22635-21kworker/u8:220:12:041
3038899180,2cyclictest0-21swapper/123:38:051
3038799180,17cyclictest0-21swapper/021:10:010
3039099179,2cyclictest14172-21diskmemload23:38:393
3039099179,2cyclictest0-21swapper/323:32:463
3039099179,2cyclictest0-21swapper/322:46:323
3039099179,2cyclictest0-21swapper/322:14:153
3039099178,2cyclictest0-21swapper/322:09:583
3039099178,2cyclictest0-21swapper/321:05:193
3039099178,2cyclictest0-21swapper/320:03:223
3039099176,3cyclictest23083-21hwlatdetect00:10:153
3039099175,3cyclictest21391-21ntpq22:25:173
3039099170,2cyclictest0-21swapper/323:52:293
3039099170,2cyclictest0-21swapper/321:49:123
3039099170,2cyclictest0-21swapper/321:25:323
3039099170,1cyclictest0-21swapper/323:13:353
3039099170,1cyclictest0-21swapper/322:42:493
3039099170,11cyclictest0-21swapper/321:31:263
3039099170,11cyclictest0-21swapper/300:31:153
3039099170,10cyclictest0-21swapper/323:08:103
30389991712,3cyclictest3869-21sendmail-mta20:45:132
30389991712,3cyclictest3869-21sendmail-mta20:45:122
3038999170,2cyclictest0-21swapper/220:58:042
30388991714,2cyclictest8022-21kworker/u8:121:03:041
30388991714,2cyclictest5502-21kworker/u8:222:25:051
30388991714,2cyclictest5502-21kworker/u8:222:16:041
30388991714,2cyclictest32710-21kworker/u8:219:34:041
30388991714,2cyclictest32710-21kworker/u8:219:17:041
30388991714,2cyclictest12365-21kworker/u8:021:17:041
30388991714,2cyclictest11230-21kworker/u8:022:34:051
30388991714,2cyclictest10728-21kworker/u8:223:24:041
3038899170,8cyclictest0-21swapper/121:28:041
3038899170,2cyclictest0-21swapper/120:08:011
3038899170,14cyclictest0-21swapper/123:25:041
30387991714,2cyclictest24875-21kworker/u8:123:07:040
3039099168,2cyclictest23425-21ssh21:53:443
3039099167,2cyclictest0-21swapper/300:06:223
3039099167,2cyclictest0-21swapper/300:06:223
3039099162,7cyclictest0-21swapper/321:23:023
3039099162,5cyclictest0-21swapper/320:35:593
3039099161,13cyclictest0-21swapper/300:21:113
3039099160,4cyclictest0-21swapper/319:45:003
3038999160,15cyclictest0-21swapper/220:14:042
30388991613,2cyclictest8022-21kworker/u8:120:59:041
30388991613,2cyclictest30029-21kworker/u8:020:47:051
30388991613,2cyclictest30029-21kworker/u8:020:47:041
30388991613,2cyclictest23984-21kworker/u8:000:26:041
30388991613,2cyclictest12452-21kworker/u8:219:49:041
30388991613,2cyclictest12365-21kworker/u8:021:14:051
3038899160,2cyclictest0-21swapper/122:41:041
3038899160,2cyclictest0-21swapper/100:39:051
30387991613,2cyclictest29797-21kworker/u8:122:48:040
3038799160,2cyclictest2849-21rs:main0
3039099158,2cyclictest0-21swapper/323:24:543
30390991512,2cyclictest0-21swapper/321:55:293
3038999151,12cyclictest0-21swapper/222:57:552
30389991510,3cyclictest13939-21wc23:26:032
30388991512,2cyclictest32710-21kworker/u8:219:27:051
30388991512,2cyclictest19944-21kworker/u8:120:32:041
30388991512,2cyclictest12365-21kworker/u8:021:07:041
3038899150,2cyclictest0-21swapper/100:32:041
3038799152,11cyclictest0-21swapper/000:30:010
30387991512,2cyclictest11230-21kworker/u8:022:28:060
30387991511,2cyclictest9157-21ssh23:20:570
3038799151,12cyclictest1478-21apt-get22:05:110
3038799150,13cyclictest3607-21aten2.4_r3power23:50:120
3038799150,13cyclictest2599-21runrttasks23:15:000
3038799150,13cyclictest19237-21ssh21:49:370
3038799150,13cyclictest0-21swapper/022:10:110
3038799150,13cyclictest0-21swapper/000:24:470
3039099144,3cyclictest3127-21nscd21:14:333
3039099140,3cyclictest0-21swapper/322:32:043
30388991411,2cyclictest23984-21kworker/u8:000:21:041
30388991411,2cyclictest11627-21kworker/u8:019:14:041
3038899140,2cyclictest3133-21copy23:50:041
30387991411,2cyclictest983-21kworker/u8:221:42:040
30387991411,2cyclictest27406-21kworker/u8:122:04:050
30387991411,2cyclictest24518-21apt-get20:15:150
30387991411,2cyclictest0-21swapper/021:36:180
30387991411,2cyclictest0-21swapper/021:15:570
30387991410,2cyclictest10179-21munin-run19:40:000
3038799140,12cyclictest32748-21ssh22:37:270
3038799140,12cyclictest18453-21munin-node0
3038799140,12cyclictest0-21swapper/021:20:470
3038799140,12cyclictest0-21swapper/020:46:010
3038799140,12cyclictest0-21swapper/020:46:010
3038799140,12cyclictest0-21swapper/019:25:100
3039099132,6cyclictest0-21swapper/320:15:013
30390991310,2cyclictest0-21swapper/319:25:103
3039099130,2cyclictest0-21swapper/323:41:003
3039099130,2cyclictest0-21swapper/321:00:103
3038999130,2cyclictest0-21swapper/221:10:132
3038999130,12cyclictest0-21swapper/222:37:012
3038999130,12cyclictest0-21swapper/222:23:302
3038999130,11cyclictest0-21swapper/222:43:392
3038899138,3cyclictest0-21swapper/119:53:201
30388991310,2cyclictest32704-21kworker/u8:220:42:051
30388991310,2cyclictest22635-21kworker/u8:220:26:021
3038899130,2cyclictest0-21swapper/121:55:041
30387991310,2cyclictest0-21swapper/023:32:120
30387991310,2cyclictest0-21swapper/021:51:470
30387991310,2cyclictest0-21swapper/021:34:080
30387991310,2cyclictest0-21swapper/000:31:080
30387991310,2cyclictest0-21swapper/000:11:080
3038799130,2cyclictest0-21swapper/023:56:260
3038799130,2cyclictest0-21swapper/023:35:480
3038799130,2cyclictest0-21swapper/023:00:080
3038799130,2cyclictest0-21swapper/022:50:170
3038799130,2cyclictest0-21swapper/022:23:270
3038799130,2cyclictest0-21swapper/019:40:110
3038799130,2cyclictest0-21swapper/000:05:380
3038799130,2cyclictest0-21swapper/000:05:370
3038799130,12cyclictest0-21swapper/022:31:280
3038799130,12cyclictest0-21swapper/022:16:570
3038799130,12cyclictest0-21swapper/000:16:220
150302130,2sleep00-21swapper/000:01:120
3039099129,2cyclictest0-21swapper/320:25:013
3039099128,3cyclictest0-21swapper/320:46:053
3039099128,3cyclictest0-21swapper/320:46:053
3039099122,7cyclictest0-21swapper/322:50:013
3039099120,3cyclictest24431-21sendmail-mta23:03:543
3039099120,2cyclictest0-21swapper/300:27:453
3039099120,11cyclictest0-21swapper/322:16:223
3039099120,11cyclictest0-21swapper/320:50:173
3039099120,11cyclictest0-21swapper/319:36:053
3039099120,11cyclictest0-21swapper/319:15:173
3038999120,2cyclictest0-21swapper/223:00:292
3038999120,2cyclictest0-21swapper/219:55:042
3038899129,2cyclictest32710-21kworker/u8:219:35:041
3038899129,2cyclictest0-21swapper/119:20:141
3038899120,2cyclictest0-21swapper/120:22:041
3038899120,10cyclictest26062-21chrt20:17:001
3038799129,2cyclictest0-21swapper/020:05:130
3038799120,2cyclictest0-21swapper/023:27:390
3038799120,2cyclictest0-21swapper/023:15:090
3038799120,2cyclictest0-21swapper/021:04:480
3038799120,2cyclictest0-21swapper/020:25:110
3038799120,11cyclictest0-21swapper/022:41:360
3038899112,6cyclictest0-21swapper/120:50:011
3038799118,2cyclictest0-21swapper/020:24:270
3038799118,2cyclictest0-21swapper/019:50:150
28012110,0sleep00-21swapper/020:40:150
3039099106,3cyclictest274-21jbd2/sda1-820:15:073
3039099106,2cyclictest16841-21cut19:55:133
3039099105,3cyclictest20942-21tune2fs20:05:133
3039099105,3cyclictest12057-21sendmail-mta19:45:133
3039099101,7cyclictest0-21swapper/319:51:583
3039099100,9cyclictest0-21swapper/319:24:283
3039099100,7cyclictest0-21swapper/320:41:583
3039099100,2cyclictest0-21swapper/320:34:333
3038999104,4cyclictest7706-21grep19:31:022
3038899105,3cyclictest11878-21awk19:41:031
3038799107,2cyclictest0-21swapper/020:51:010
3038799107,2cyclictest0-21swapper/020:34:370
3038799107,2cyclictest0-21swapper/019:20:150
3038799104,2cyclictest0-21swapper/019:30:040
3038799100,9cyclictest0-21swapper/019:55:130
3038799100,9cyclictest0-21swapper/019:14:400
303909994,3cyclictest6528-21aten2.4-expect19:30:123
303909991,6cyclictest8583-21cut20:55:153
303899994,3cyclictest3728-21runrttasks19:45:172
303879996,2cyclictest0-21swapper/021:05:270
303879994,3cyclictest12528-21aten2.4_r3power19:45:120
303879990,8cyclictest0-21swapper/020:10:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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