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2026-06-25 - 11:58

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 Jun 25, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30947210594,6sleep30-21swapper/319:06:113
31078210493,6sleep00-21swapper/019:07:510
30493210280,17sleep20-21swapper/219:05:372
2945229577,13sleep10-21swapper/119:05:041
80032770,0sleep00-21swapper/023:55:560
116932730,1sleep00-21swapper/022:15:160
206652700,0sleep00-21swapper/021:15:160
321722650,0sleep30-21swapper/323:11:553
282392480,1sleep028237-21ssh23:43:060
3127999320,30cyclictest0-21swapper/122:25:121
3127999241,14cyclictest29944-21cpuspeed_turbos00:20:121
216772230,0sleep00-21swapper/021:50:510
123652220,0sleep20-21swapper/223:25:252
3128199210,16cyclictest0-21swapper/322:23:043
3127999211,3cyclictest0-21swapper/121:35:111
3127999201,3cyclictest0-21swapper/122:20:141
3127999200,4cyclictest0-21swapper/122:52:471
3127999200,4cyclictest0-21swapper/121:11:341
3127999200,3cyclictest3177-21ssh00:25:391
3127999200,3cyclictest0-21swapper/123:54:471
3127999200,3cyclictest0-21swapper/123:21:461
3127999200,3cyclictest0-21swapper/123:17:431
3127999200,3cyclictest0-21swapper/122:58:111
3127999200,3cyclictest0-21swapper/122:19:351
3127999200,3cyclictest0-21swapper/121:25:181
3127999200,2cyclictest0-21swapper/100:17:101
31281991916,2cyclictest8864-21kworker/u8:021:03:053
31281991916,2cyclictest6766-21kworker/u8:120:49:053
31281991916,2cyclictest26971-21kworker/u8:120:24:053
31281991916,2cyclictest26971-21kworker/u8:120:18:053
3128199190,3cyclictest0-21swapper/322:19:053
3128199190,14cyclictest0-21swapper/320:28:053
3127999191,3cyclictest0-21swapper/121:50:131
3127999191,3cyclictest0-21swapper/120:50:161
3127999191,3cyclictest0-21swapper/120:10:121
3127999191,3cyclictest0-21swapper/120:01:011
3127999191,16cyclictest0-21swapper/119:40:291
3127999190,3cyclictest3728-21runrttasks22:04:301
3127999190,3cyclictest26898-21ssh21:21:061
3127999190,3cyclictest20544-21ssh23:00:101
3127999190,3cyclictest0-21swapper/120:20:181
3127999190,17cyclictest0-21swapper/119:10:181
3127999190,17cyclictest0-21swapper/100:30:191
73602180,1sleep20-21swapper/219:30:122
31281991815,2cyclictest8864-21kworker/u8:021:12:023
31281991815,2cyclictest6796-21kworker/u8:119:39:053
31281991815,2cyclictest6767-21kworker/u8:320:52:053
31281991815,2cyclictest26971-21kworker/u8:120:32:043
31281991815,2cyclictest20197-21kworker/u8:221:26:053
31281991815,2cyclictest14546-21kworker/u8:123:33:043
31281991815,2cyclictest14420-21kworker/u8:121:31:043
31281991815,2cyclictest13029-21kworker/u8:219:48:053
31281991814,2cyclictest1683-21kworker/u8:023:58:053
3128199180,4cyclictest0-21swapper/322:43:053
3128199180,3cyclictest4930-21ssh22:08:053
3128199180,14cyclictest0-21swapper/319:25:053
3128199180,13cyclictest0-21swapper/319:52:053
3127999189,7cyclictest11947-21irqstats00:35:151
3127999181,3cyclictest0-21swapper/123:05:131
3127999181,3cyclictest0-21swapper/123:05:121
3127999181,3cyclictest0-21swapper/121:30:131
3127999181,3cyclictest0-21swapper/120:36:011
3127999181,2cyclictest0-21swapper/122:45:111
3127999181,15cyclictest24777-21basename23:40:011
3127999181,15cyclictest0-21swapper/123:40:131
3127999180,3cyclictest20153-21munin-node1
3127999180,3cyclictest17941-21munin-node1
3127999180,11cyclictest0-21swapper/121:00:111
3128199173,2cyclictest0-21swapper/300:05:043
31281991714,2cyclictest28197-21kworker/u8:000:27:053
31281991714,2cyclictest27964-21kworker/u8:122:52:053
31281991714,2cyclictest25145-21kworker/u8:123:42:043
31281991714,2cyclictest17487-21kworker/u8:220:10:053
31281991714,2cyclictest1683-21kworker/u8:000:02:023
31281991714,2cyclictest13029-21kworker/u8:219:44:043
3128199170,2cyclictest0-21swapper/320:07:043
31280991714,2cyclictest13724-21kworker/u8:121:43:052
3128099171,14cyclictest0-21swapper/200:15:142
3127999172,2cyclictest0-21swapper/120:30:121
3127999171,6cyclictest0-21swapper/122:06:071
3127999171,6cyclictest0-21swapper/100:00:401
3127999171,3cyclictest15144-21diskmemload22:30:061
3127999171,3cyclictest0-21swapper/123:45:161
3127999171,3cyclictest0-21swapper/123:25:121
3127999171,3cyclictest0-21swapper/122:10:111
3127999171,3cyclictest0-21swapper/119:50:141
3127999171,14cyclictest0-21swapper/119:30:161
3127999170,3cyclictest9278-21munin-node1
3127999170,3cyclictest0-21swapper/121:05:151
3127999170,3cyclictest0-21swapper/119:50:011
3127999170,15cyclictest0-21swapper/119:15:181
3128199162,2cyclictest0-21swapper/321:16:023
31281991613,2cyclictest27964-21kworker/u8:122:48:013
31281991613,2cyclictest19586-21kworker/u8:023:35:053
31281991613,2cyclictest15338-21kworker/u8:120:01:053
31281991613,2cyclictest13320-21kworker/u8:000:39:053
3128199160,2cyclictest0-21swapper/320:37:053
3128199160,2cyclictest0-21swapper/319:17:043
31280991613,2cyclictest4482-21kworker/u8:323:17:052
31280991613,2cyclictest21731-21kworker/u8:022:33:052
3128099161,13cyclictest32186-21iostat19:10:152
3127999169,6cyclictest0-21swapper/100:05:531
3127999169,5cyclictest0-21swapper/119:25:391
3127999165,3cyclictest3119-21munin-node1
3127999164,3cyclictest15144-21diskmemload22:39:201
3127999164,3cyclictest0-21swapper/122:40:121
3127999162,12cyclictest0-21swapper/123:57:011
3127999161,6cyclictest0-21swapper/121:47:471
3127999161,3cyclictest20373-21munin-node1
3127999161,3cyclictest11397-21df21:40:131
3127999161,3cyclictest0-21swapper/123:11:041
3127999161,13cyclictest25762-21ntpq21:55:191
3127999161,13cyclictest10525-21sed19:36:041
3127999160,6cyclictest0-21swapper/123:30:171
31277991613,2cyclictest27964-21kworker/u8:122:39:040
3128199151,2cyclictest0-21swapper/323:25:053
31281991512,2cyclictest30939-21kworker/u8:219:20:053
3128199151,12cyclictest26295-21ssh22:30:413
3128199150,2cyclictest0-21swapper/322:12:043
3128199150,2cyclictest0-21swapper/321:51:053
3128199150,2cyclictest0-21swapper/321:24:043
3128199150,2cyclictest0-21swapper/320:58:043
3128199150,14cyclictest0-21swapper/319:14:063
3128099151,2cyclictest1052-21apt-get20:35:112
31280991512,2cyclictest6565-21kworker/u8:221:39:052
31280991512,2cyclictest0-21swapper/223:56:042
3128099150,13cyclictest10601-21ssh22:14:452
3127999152,5cyclictest21515-21aten2.4-expect20:05:111
3127999151,3cyclictest0-21swapper/120:40:141
3127999151,3cyclictest0-21swapper/120:25:121
3127999151,3cyclictest0-21swapper/120:15:151
31277991512,2cyclictest8813-21kworker/u8:019:51:050
54712140,3sleep00-21swapper/000:28:370
31281991411,2cyclictest0-21swapper/300:20:433
3128199140,2cyclictest0-21swapper/322:57:043
3128199140,2cyclictest0-21swapper/322:04:053
3128199140,2cyclictest0-21swapper/320:40:043
3128199140,2cyclictest0-21swapper/300:31:043
3128199140,12cyclictest0-21swapper/323:15:403
3128199140,12cyclictest0-21swapper/319:30:183
3128099141,2cyclictest3728-21runrttasks22:56:592
31280991411,2cyclictest27964-21kworker/u8:122:45:042
31280991411,2cyclictest1683-21kworker/u8:023:54:022
31280991411,2cyclictest0-21swapper/223:45:152
31280991411,2cyclictest0-21swapper/200:00:122
3128099141,11cyclictest0-21swapper/223:07:442
3128099141,11cyclictest0-21swapper/223:07:432
3128099141,11cyclictest0-21swapper/221:45:342
3128099140,3cyclictest4506-21ssh22:07:262
3128099140,2cyclictest0-21swapper/223:00:132
3128099140,2cyclictest0-21swapper/222:29:542
3128099140,2cyclictest0-21swapper/221:10:132
3128099140,13cyclictest0-21swapper/220:21:032
3128099140,12cyclictest15144-21diskmemload21:25:012
3128099140,12cyclictest0-21swapper/223:36:272
3127999143,3cyclictest5302-21aten2.4_r3power20:45:121
31277991411,2cyclictest23051-21kworker/u8:123:13:040
31277991411,2cyclictest15509-21kworker/u8:222:59:050
31277991411,2cyclictest0-21swapper/022:11:030
3127799140,2cyclictest29519-21apt-get22:00:100
3127799140,2cyclictest0-21swapper/021:45:150
3127799140,13cyclictest0-21swapper/020:20:150
3127799140,13cyclictest0-21swapper/020:15:160
3127799140,12cyclictest28070-21ssh23:07:440
3127799140,12cyclictest28070-21ssh23:07:440
197792140,2sleep00-21swapper/021:14:560
142102140,2sleep00-21swapper/022:52:400
92192130,2sleep00-21swapper/000:32:130
31281991310,2cyclictest6219-21ssh23:55:013
31281991310,2cyclictest0-21swapper/321:37:413
3128199130,3cyclictest23330-21ssh00:12:423
3128199130,2cyclictest0-21swapper/323:46:023
3128199130,2cyclictest0-21swapper/322:38:143
3128199130,2cyclictest0-21swapper/322:26:053
3128199130,2cyclictest0-21swapper/321:40:113
3128199130,2cyclictest0-21swapper/321:08:013
3128199130,2cyclictest0-21swapper/319:55:053
3128199130,12cyclictest0-21swapper/323:05:143
3128199130,12cyclictest0-21swapper/323:05:133
3128199130,12cyclictest0-21swapper/323:02:483
3128199130,12cyclictest0-21swapper/321:48:573
3128099131,11cyclictest15144-21diskmemload21:15:092
31280991310,2cyclictest22475-21ssh21:51:302
31280991310,2cyclictest15338-21kworker/u8:120:03:052
31280991310,2cyclictest14546-21kworker/u8:123:32:042
31280991310,2cyclictest10393-21ssh00:34:112
31280991310,2cyclictest0-21swapper/222:50:182
31280991310,2cyclictest0-21swapper/222:40:142
31280991310,2cyclictest0-21swapper/222:19:092
31280991310,2cyclictest0-21swapper/221:31:362
31280991310,2cyclictest0-21swapper/221:22:102
31280991310,2cyclictest0-21swapper/200:35:212
3128099130,3cyclictest3649-21snmpd20:05:512
3128099130,2cyclictest0-21swapper/223:10:122
3128099130,2cyclictest0-21swapper/221:55:172
3128099130,2cyclictest0-21swapper/200:20:292
3128099130,12cyclictest0-21swapper/223:21:012
3128099130,12cyclictest0-21swapper/222:39:042
3128099130,12cyclictest0-21swapper/222:24:352
3128099130,12cyclictest0-21swapper/222:00:122
3128099130,12cyclictest0-21swapper/220:25:172
3128099130,12cyclictest0-21swapper/200:25:172
3128099130,12cyclictest0-21swapper/200:10:192
3128099130,12cyclictest0-21swapper/200:05:202
3128099130,11cyclictest0-21swapper/219:51:052
3127799139,2cyclictest23915-21grep20:10:130
31277991310,2cyclictest21424-21apt-get20:05:100
31277991310,2cyclictest1242-21kworker/u8:021:42:050
3127799130,2cyclictest27299-21ssh22:31:400
3127799130,2cyclictest0-21swapper/021:01:020
3127799130,1cyclictest15144-21diskmemload00:15:130
3127799130,1cyclictest0-21swapper/000:35:160
3127799130,12cyclictest0-21swapper/023:15:040
3127799130,12cyclictest0-21swapper/021:30:120
3127799130,12cyclictest0-21swapper/021:21:370
180162130,2sleep00-21swapper/000:06:320
3128199129,2cyclictest0-21swapper/323:20:123
3128199129,2cyclictest0-21swapper/321:56:213
3128199120,2cyclictest0-21swapper/300:15:353
3128099129,2cyclictest0-21swapper/223:41:382
3127799129,2cyclictest0-21swapper/023:25:170
3127799129,2cyclictest0-21swapper/023:21:100
3127799129,2cyclictest0-21swapper/021:35:380
3127799129,2cyclictest0-21swapper/021:05:160
3127799129,2cyclictest0-21swapper/019:20:140
3127799129,2cyclictest0-21swapper/019:11:020
3127799120,2cyclictest1887-21ssh22:40:110
3127799120,1cyclictest0-21swapper/023:31:270
3127799120,11cyclictest15144-21diskmemload22:06:230
3127799120,11cyclictest0-21swapper/023:02:490
3127799120,11cyclictest0-21swapper/022:45:150
3127799120,11cyclictest0-21swapper/021:59:480
3127799120,11cyclictest0-21swapper/021:25:500
3127799120,11cyclictest0-21swapper/000:20:110
215792120,2sleep00-21swapper/022:25:340
3128099118,2cyclictest6767-21kworker/u8:320:59:042
3128099118,2cyclictest0-21swapper/220:15:182
3128099118,2cyclictest0-21swapper/220:11:012
3127799118,2cyclictest0-21swapper/022:21:230
3127799118,2cyclictest0-21swapper/020:40:180
3127799118,2cyclictest0-21swapper/020:30:150
3127799118,2cyclictest0-21swapper/000:03:350
3127799110,1cyclictest15144-21diskmemload23:37:140
3127799110,1cyclictest0-21swapper/023:45:150
3127799110,1cyclictest0-21swapper/019:55:120
3127799110,1cyclictest0-21swapper/019:30:160
3127799110,10cyclictest0-21swapper/023:52:450
3128099107,2cyclictest6766-21kworker/u8:120:48:042
3128099107,2cyclictest613-21kworker/u8:019:19:042
3128099107,2cyclictest15338-21kworker/u8:119:58:042
3128099107,2cyclictest0-21swapper/220:51:052
3128099106,3cyclictest6796-21kworker/u8:119:37:052
3127799107,2cyclictest9305-21apt-get19:35:130
3127799107,2cyclictest10805-21kworker/u8:220:57:050
3127799100,2cyclictest0-21swapper/000:11:520
28422100,7sleep20-21swapper/220:40:012
4855290,2sleep20-21swapper/219:22:242
312809996,2cyclictest8864-21kworker/u8:021:05:052
312809996,2cyclictest13029-21kworker/u8:219:45:052
312809996,2cyclictest10805-21kworker/u8:221:04:052
312809990,8cyclictest0-21swapper/219:25:502
312779990,8cyclictest0-21swapper/019:25:130
312779990,1cyclictest0-21swapper/019:45:180
12343290,6sleep00-21swapper/019:40:290
312809985,2cyclictest0-21swapper/219:40:522
312809980,7cyclictest0-21swapper/220:30:022
312779985,2cyclictest0-21swapper/020:27:560
312779985,2cyclictest0-21swapper/019:15:160
312779984,2cyclictest7669-21entropy20:50:140
20418280,2sleep00-21swapper/020:00:210
1446280,5sleep00-21swapper/020:35:130
312779974,2cyclictest0-21swapper/020:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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