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2026-08-06 - 08:31

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 all highest latencies:
System rack3slot6s.osadl.org (updated Thu Aug 06, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21263211497,12sleep10-21swapper/119:06:331
2178921130,1sleep10-21swapper/119:10:041
21270210897,6sleep30-21swapper/319:06:393
20815210796,6sleep20-21swapper/219:05:502
20780210683,18sleep00-21swapper/019:05:360
166852820,0sleep00-21swapper/023:00:180
311372730,0sleep00-21swapper/021:35:360
163582670,0sleep20-21swapper/221:20:232
36342290,0sleep20-21swapper/222:14:422
302632260,1sleep0101ktimersoftd/023:15:000
195002260,1sleep3381ktimersoftd/322:30:143
2156999211,2cyclictest0-21swapper/120:35:111
21570992017,2cyclictest24270-21kworker/u8:100:22:042
2157099200,4cyclictest0-21swapper/222:53:042
2157099200,4cyclictest0-21swapper/222:53:042
2157099200,3cyclictest0-21swapper/223:02:052
2156999200,2cyclictest0-21swapper/121:40:121
2156599200,18cyclictest0-21swapper/022:06:040
92452190,9sleep00-21swapper/023:59:580
2157099190,3cyclictest0-21swapper/219:27:042
2157099190,3cyclictest0-21swapper/219:27:042
2156599190,2cyclictest0-21swapper/020:45:110
248942180,0sleep20-21swapper/223:09:252
21571991815,2cyclictest24270-21kworker/u8:100:18:053
21570991815,2cyclictest31660-21kworker/u8:022:38:042
21570991815,2cyclictest24270-21kworker/u8:100:17:042
21570991815,2cyclictest2289-21kworker/u8:023:27:042
21570991815,2cyclictest19116-21kworker/u8:220:29:042
21570991815,2cyclictest15358-21kworker/u8:221:33:042
2157099180,4cyclictest0-21swapper/220:06:042
2157099180,3cyclictest0-21swapper/222:30:012
21565991815,2cyclictest12410-21kworker/u8:322:56:050
21570991714,2cyclictest25580-21kworker/u8:223:18:012
21570991714,2cyclictest25213-21kworker/u8:021:00:052
21570991714,2cyclictest19116-21kworker/u8:220:32:012
21565991714,2cyclictest15358-21kworker/u8:221:32:000
21565991714,2cyclictest1165-21kworker/u8:020:02:040
7492160,1sleep20-21swapper/222:44:592
280612161,2sleep05142-21diskmemload00:18:590
21571991613,2cyclictest5831-21kworker/u8:222:29:043
21571991613,2cyclictest23953-21kworker/u8:222:37:043
21571991613,2cyclictest20667-21kworker/u8:222:02:013
21570991613,2cyclictest28180-21kworker/u8:021:42:012
21570991613,2cyclictest1165-21kworker/u8:019:59:042
21570991613,2cyclictest1165-21kworker/u8:019:51:042
2157099161,13cyclictest0-21swapper/222:01:052
2157099160,10cyclictest0-21swapper/219:39:042
2156999167,7cyclictest24270-21kworker/u8:100:29:591
2156999166,7cyclictest4562-21gdm-simple-gree23:13:591
21565991613,2cyclictest27897-21kworker/u8:119:57:040
21565991613,2cyclictest19328-21kworker/u8:123:15:040
21565991613,2cyclictest19116-21kworker/u8:220:31:040
21565991613,2cyclictest14523-21kworker/u8:020:21:040
2156599160,15cyclictest0-21swapper/020:09:040
159452161,3sleep30-21swapper/323:00:143
84912151,3sleep30-21swapper/323:58:493
21571991512,2cyclictest7393-21kworker/u8:221:47:043
21571991512,2cyclictest5002-21kworker/u8:021:15:043
21571991512,2cyclictest31660-21kworker/u8:022:15:033
21571991512,2cyclictest28180-21kworker/u8:021:43:043
21571991512,2cyclictest2289-21kworker/u8:023:29:043
21571991512,2cyclictest15358-21kworker/u8:221:38:043
2157199150,2cyclictest0-21swapper/320:06:043
2157199150,13cyclictest0-21swapper/320:45:003
2157199150,13cyclictest0-21swapper/300:03:143
2157199150,11cyclictest0-21swapper/322:14:043
21570991512,2cyclictest5831-21kworker/u8:222:28:012
21570991512,2cyclictest31660-21kworker/u8:022:20:042
21570991512,2cyclictest31526-21kworker/u8:219:33:042
21570991512,2cyclictest3024-21kworker/u8:000:38:052
21570991512,2cyclictest27897-21kworker/u8:119:45:042
21570991512,2cyclictest25213-21kworker/u8:020:59:042
21570991512,2cyclictest14523-21kworker/u8:020:15:042
21570991512,2cyclictest12879-21kworker/u8:123:39:042
21570991512,2cyclictest12879-21kworker/u8:100:00:052
21570991512,2cyclictest1165-21kworker/u8:019:40:042
2157099150,8cyclictest0-21swapper/223:58:042
2157099150,2cyclictest0-21swapper/221:19:032
2156999152,11cyclictest20561-21ssh21:25:151
21569991512,2cyclictest221ktimersoftd/123:52:301
2156999151,12cyclictest0-21swapper/122:41:501
21569991510,3cyclictest0-21swapper/123:40:131
21569991510,3cyclictest0-21swapper/122:09:591
2156999150,2cyclictest0-21swapper/121:18:321
2156999150,13cyclictest0-21swapper/120:31:031
2156999150,13cyclictest0-21swapper/120:11:011
2156999150,12cyclictest0-21swapper/100:35:411
2156599151,2cyclictest27278-21apt-get23:45:100
21565991512,2cyclictest19328-21kworker/u8:123:08:050
21565991512,2cyclictest19116-21kworker/u8:220:37:040
21565991512,2cyclictest1229-21kworker/u8:221:05:040
171422151,3sleep217153-21sh00:07:102
48912141,3sleep24991-21iostat22:15:152
21571991411,2cyclictest5831-21kworker/u8:222:23:043
21571991411,2cyclictest19328-21kworker/u8:123:21:043
21571991411,2cyclictest12879-21kworker/u8:123:42:043
21571991411,2cyclictest0-21swapper/321:50:333
21571991410,2cyclictest23596-21apt-get19:15:063
2157199140,3cyclictest29595-21sh23:46:353
2157199140,13cyclictest0-21swapper/322:50:133
2157199140,13cyclictest0-21swapper/322:50:133
2157199140,13cyclictest0-21swapper/321:55:333
2157199140,12cyclictest26865-21ssh23:10:363
2157199140,12cyclictest14191-21seq00:37:183
2157199140,12cyclictest0-21swapper/322:43:073
2157199140,12cyclictest0-21swapper/319:20:073
2157199140,12cyclictest0-21swapper/300:22:483
21570991411,2cyclictest5142-21diskmemload22:47:192
21570991411,2cyclictest5142-21diskmemload22:47:192
21570991411,2cyclictest19328-21kworker/u8:123:12:052
21570991411,2cyclictest13152-21kworker/u8:019:23:042
21570991411,2cyclictest0-21swapper/222:09:192
21570991411,2cyclictest0-21swapper/221:55:192
21570991411,2cyclictest0-21swapper/200:14:392
2157099140,3cyclictest0-21swapper/200:33:492
2157099140,2cyclictest0-21swapper/223:52:042
2157099140,2cyclictest0-21swapper/219:10:042
2157099140,2cyclictest0-21swapper/200:29:042
2156999144,7cyclictest4562-21gdm-simple-gree20:42:591
2156999142,7cyclictest0-21swapper/120:00:011
2156999142,2cyclictest21-21rcuc/122:45:021
2156999142,2cyclictest21-21rcuc/122:45:021
2156999141,2cyclictest221ktimersoftd/123:39:031
21569991411,2cyclictest0-21swapper/123:30:031
2156999141,11cyclictest0-21swapper/119:40:541
2156999140,12cyclictest27367-21ssh21:31:391
21565991411,2cyclictest27897-21kworker/u8:119:27:040
21565991411,2cyclictest27897-21kworker/u8:119:27:040
21565991411,2cyclictest23953-21kworker/u8:222:53:040
21565991411,2cyclictest23953-21kworker/u8:222:53:030
21565991411,2cyclictest14523-21kworker/u8:020:18:040
2156599140,2cyclictest0-21swapper/023:51:110
278222131,3sleep327833-21ssh21:32:233
2157199139,2cyclictest27705-21sed22:05:173
2157199136,4cyclictest0-21swapper/320:52:593
2157199131,11cyclictest5142-21diskmemload00:09:363
2157199131,11cyclictest25310-21latency_hist20:40:003
21571991310,2cyclictest9209-21kworker/u8:121:27:043
21571991310,2cyclictest9209-21kworker/u8:121:22:043
21571991310,2cyclictest5844-21ssh00:29:283
21571991310,2cyclictest4272-21kworker/u8:200:13:043
21571991310,2cyclictest13152-21kworker/u8:019:25:043
21571991310,2cyclictest13152-21kworker/u8:019:25:043
21571991310,2cyclictest12410-21kworker/u8:322:56:013
21571991310,2cyclictest0-21swapper/323:34:133
21571991310,2cyclictest0-21swapper/322:47:533
21571991310,2cyclictest0-21swapper/322:47:533
21571991310,2cyclictest0-21swapper/320:30:133
21571991310,2cyclictest0-21swapper/300:33:143
2157199130,2cyclictest0-21swapper/323:07:483
2157099139,3cyclictest12251-21ssh22:55:382
21570991310,2cyclictest23668-21copy19:15:032
21570991310,2cyclictest0-21swapper/221:45:392
21570991310,2cyclictest0-21swapper/221:12:552
2157099130,2cyclictest12151-21ssh21:50:042
2157099130,2cyclictest0-21swapper/223:47:322
2157099130,2cyclictest0-21swapper/223:31:032
2157099130,2cyclictest0-21swapper/221:36:012
2157099130,12cyclictest0-21swapper/223:41:192
2157099130,12cyclictest0-21swapper/223:20:132
2156999138,3cyclictest3920-21irqstats21:05:181
2156999138,3cyclictest27448-21aten2.4-expect23:45:111
2156999138,3cyclictest16718-21ssh21:54:561
2156999138,3cyclictest0-21swapper/119:16:031
2156999138,3cyclictest0-21swapper/100:04:321
2156999133,8cyclictest4562-21gdm-simple-gree23:56:591
2156999132,6cyclictest0-21swapper/120:50:001
2156999132,6cyclictest0-21swapper/120:30:011
2156999131,9cyclictest0-21swapper/121:10:111
2156999131,8cyclictest221ktimersoftd/122:40:001
2156999131,2cyclictest21-21rcuc/123:05:501
2156999131,11cyclictest21-21rcuc/121:36:591
2156999131,10cyclictest30277-21cut00:20:311
21569991310,2cyclictest0-21swapper/122:30:231
21569991310,2cyclictest0-21swapper/122:27:211
21569991310,2cyclictest0-21swapper/120:00:161
2156999130,2cyclictest23-21ksoftirqd/119:30:101
2156999130,2cyclictest21-21rcuc/122:20:181
2156999130,2cyclictest0-21swapper/123:26:131
2156999130,2cyclictest0-21swapper/123:15:391
2156999130,2cyclictest0-21swapper/123:01:201
2156999130,2cyclictest0-21swapper/121:20:221
2156999130,12cyclictest0-21swapper/123:20:131
2156999130,12cyclictest0-21swapper/122:11:521
2156999130,12cyclictest0-21swapper/119:46:021
2156999130,11cyclictest5142-21diskmemload21:49:321
21565991310,2cyclictest5985-21ssh21:10:150
21565991310,2cyclictest18525-21kworker/u8:122:30:010
2156599130,2cyclictest0-21swapper/020:25:150
2156599130,12cyclictest0-21swapper/000:30:330
141252130,2sleep10-21swapper/122:57:551
125682130,2sleep00-21swapper/000:02:350
57842120,1sleep00-21swapper/021:43:070
238802120,2sleep00-21swapper/023:40:510
217082120,2sleep10-21swapper/100:11:411
2157199129,2cyclictest31526-21kworker/u8:219:34:043
2157199129,2cyclictest25213-21kworker/u8:020:58:013
2157199129,2cyclictest0-21swapper/323:51:583
2157199123,6cyclictest0-21swapper/319:56:013
2157199122,7cyclictest4562-21gdm-simple-gree21:13:593
2157199122,7cyclictest0-21swapper/320:46:023
2157199122,7cyclictest0-21swapper/320:21:593
2157199122,7cyclictest0-21swapper/320:02:013
2157199120,2cyclictest0-21swapper/323:35:043
2157199120,11cyclictest0-21swapper/319:45:163
2157199120,10cyclictest13152-21kworker/u8:019:11:043
2157099120,2cyclictest0-21swapper/221:26:252
2157099120,2cyclictest0-21swapper/220:00:042
2157099120,11cyclictest25213-21kworker/u8:020:45:042
2157099120,11cyclictest0-21swapper/220:10:402
2156999129,2cyclictest0-21swapper/120:20:391
2156999121,9cyclictest5680-21munin-node1
2156999121,9cyclictest0-21swapper/122:00:121
2156999121,9cyclictest0-21swapper/120:05:221
2156999121,3cyclictest17592-21fschecks_count21:55:181
2156999121,3cyclictest0-21swapper/122:50:131
2156999121,3cyclictest0-21swapper/122:50:131
2156999121,3cyclictest0-21swapper/121:00:121
2156999120,3cyclictest0-21swapper/100:15:171
2156999120,11cyclictest5142-21diskmemload00:05:021
2156999120,11cyclictest23-21ksoftirqd/119:25:291
2156999120,11cyclictest23-21ksoftirqd/119:25:291
2156999120,11cyclictest0-21swapper/120:55:411
2156999120,11cyclictest0-21swapper/120:45:001
2156999120,11cyclictest0-21swapper/100:31:051
2156599129,2cyclictest0-21swapper/022:02:550
2156599122,2cyclictest7915-1kworker/u9:022:22:420
2156599120,2cyclictest5142-21diskmemload22:45:140
2156599120,2cyclictest5142-21diskmemload22:45:140
2156599120,11cyclictest21564-21cyclictest21:27:450
2156599120,11cyclictest12879-21kworker/u8:123:36:040
2156599120,11cyclictest0-21swapper/019:40:150
2156599120,10cyclictest5345-21chrt23:21:340
2156599120,10cyclictest0-21swapper/022:35:510
53742110,8sleep00-21swapper/022:15:210
2157199118,2cyclictest25580-21kworker/u8:223:19:043
2157199118,2cyclictest14523-21kworker/u8:020:17:043
2157199118,2cyclictest1229-21kworker/u8:221:02:043
2157199112,7cyclictest0-21swapper/320:14:593
2157099110,4cyclictest0-21swapper/220:37:042
2157099110,2cyclictest0-21swapper/220:54:042
2156999111,8cyclictest0-21swapper/120:15:161
2156999110,9cyclictest31917-21munin-node1
2156999110,9cyclictest0-21swapper/122:16:021
2156599118,2cyclictest22150irq/25-ahci[00000:13:200
2156599118,2cyclictest1165-21kworker/u8:019:39:040
2156599118,2cyclictest0-21swapper/022:25:060
2156599118,2cyclictest0-21swapper/021:54:030
2156599118,2cyclictest0-21swapper/021:15:150
2156599118,2cyclictest0-21swapper/020:55:140
2156599118,2cyclictest0-21swapper/020:11:000
2156599110,2cyclictest5142-21diskmemload21:20:510
2156599110,10cyclictest17105-21ssh23:34:420
2156599110,10cyclictest0-21swapper/021:45:150
151292110,1sleep00-21swapper/000:38:460
2157199107,2cyclictest27897-21kworker/u8:119:42:043
2157199102,7cyclictest0-21swapper/321:07:593
2157099105,3cyclictest25857-21df_abs20:40:132
2157099100,2cyclictest0-21swapper/220:23:142
2156999101,7cyclictest0-21swapper/119:24:591
2156599107,2cyclictest5142-21diskmemload00:21:160
2156599107,2cyclictest25213-21kworker/u8:020:40:050
2156599107,2cyclictest0-21swapper/019:10:040
2156599102,6cyclictest649-21sh22:10:480
2156599100,9cyclictest0-21swapper/022:43:430
2156599100,9cyclictest0-21swapper/021:58:240
2156599100,8cyclictest25635-21apt-get19:20:070
215719996,2cyclictest19116-21kworker/u8:220:28:043
215719996,2cyclictest1165-21kworker/u8:019:50:043
215719996,2cyclictest0-21swapper/319:35:273
215709994,3cyclictest3427-21cpu21:05:152
215659996,2cyclictest5142-21diskmemload23:27:390
215659996,2cyclictest0-21swapper/000:25:540
215659996,2cyclictest0-21swapper/000:05:210
215659995,2cyclictest29552-21munin-node0
215659985,2cyclictest22150irq/25-ahci[00019:53:110
215659984,3cyclictest31545-21sendmail-mta19:33:140
215659984,3cyclictest24152-21sh19:15:150
215659980,2cyclictest0-21swapper/019:46:030
215659974,2cyclictest25213-21kworker/u8:021:00:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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