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2026-09-09 - 12:04

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 Wed Sep 09, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234482116105,6sleep20-21swapper/219:08:392
23013211488,19sleep30-21swapper/319:06:043
23260211289,16sleep10-21swapper/119:06:131
21771210476,21sleep00-21swapper/019:05:120
117252740,0sleep10-21swapper/120:00:141
277312690,0sleep00-21swapper/022:01:470
23583992825,2cyclictest27467-21kworker/u8:022:58:043
23583992825,2cyclictest23590-21kworker/u8:022:17:043
23583992825,2cyclictest16736-21kworker/u8:123:32:043
23580992825,2cyclictest11100-21kworker/u8:023:23:040
23583992724,2cyclictest9167-21kworker/u8:200:39:043
23583992724,2cyclictest6285-21sh22:13:043
23583992724,2cyclictest4707-21kworker/u8:100:03:043
23580992724,2cyclictest7683-21kworker/u8:321:18:040
23583992623,2cyclictest24840-21kworker/u8:223:40:043
23581992623,2cyclictest27467-21kworker/u8:023:11:041
2358099260,9cyclictest0-21swapper/022:33:040
2358099260,24cyclictest0-21swapper/020:30:130
2358099260,18cyclictest0-21swapper/022:29:040
209132260,0sleep10-21swapper/121:22:521
23583992522,2cyclictest5358-21kworker/u8:121:47:043
23583992522,2cyclictest27467-21kworker/u8:023:09:043
23583992522,2cyclictest18977-21kworker/u8:000:10:053
23581992522,2cyclictest25337-21kworker/u8:021:42:051
2358099250,18cyclictest0-21swapper/022:49:040
23583992421,2cyclictest7683-21kworker/u8:321:20:043
23583992421,2cyclictest25337-21kworker/u8:021:37:053
23583992421,2cyclictest13037-21kworker/u8:122:34:043
23580992421,2cyclictest6788-21kworker/u8:222:50:050
23580992421,2cyclictest16736-21kworker/u8:123:29:050
23580992421,2cyclictest15356-21kworker/u8:221:57:040
2358099240,18cyclictest0-21swapper/000:28:040
228102240,1sleep10-21swapper/100:07:021
23583992320,2cyclictest5358-21kworker/u8:122:03:053
23583992320,2cyclictest25337-21kworker/u8:021:27:043
23583992320,2cyclictest25309-21kworker/u8:100:20:043
23583992320,2cyclictest25309-21kworker/u8:100:17:043
23583992320,2cyclictest24840-21kworker/u8:223:58:043
23583992320,2cyclictest24840-21kworker/u8:223:47:043
23583992320,2cyclictest23590-21kworker/u8:021:58:043
23583992320,2cyclictest15356-21kworker/u8:221:52:043
2358399230,18cyclictest0-21swapper/323:11:043
23581992320,2cyclictest27467-21kworker/u8:022:47:041
23580992320,2cyclictest5358-21kworker/u8:122:13:040
23580992320,2cyclictest25337-21kworker/u8:021:42:010
2358099230,18cyclictest0-21swapper/023:44:050
2358099230,12cyclictest0-21swapper/022:09:040
23583992219,2cyclictest6788-21kworker/u8:222:43:043
23583992219,2cyclictest4138-21kworker/u8:223:25:043
23583992219,2cyclictest27467-21kworker/u8:023:04:043
23583992219,2cyclictest25337-21kworker/u8:021:41:043
23583992219,2cyclictest25337-21kworker/u8:021:32:043
23583992219,2cyclictest24840-21kworker/u8:223:38:043
23583992219,2cyclictest19889-21kworker/u8:019:19:043
23583992219,2cyclictest18977-21kworker/u8:000:07:043
2358299222,18cyclictest0-21swapper/220:03:042
23581992219,2cyclictest23590-21kworker/u8:022:20:041
23581992219,2cyclictest21912-21kworker/u8:123:07:041
2358099220,9cyclictest0-21swapper/019:29:040
2358099220,8cyclictest0-21swapper/022:21:040
2358099220,5cyclictest0-21swapper/000:09:040
2358099220,17cyclictest0-21swapper/019:57:040
2358099220,17cyclictest0-21swapper/019:31:040
83682210,0sleep20-21swapper/222:15:162
59282210,0sleep10-21swapper/119:45:111
59282210,0sleep10-21swapper/119:45:111
23583992118,2cyclictest9167-21kworker/u8:200:27:043
23583992118,2cyclictest6788-21kworker/u8:222:52:043
23583992118,2cyclictest27467-21kworker/u8:022:46:043
23583992118,2cyclictest25907-21kworker/u8:020:58:043
23583992118,2cyclictest24840-21kworker/u8:223:53:043
23583992118,2cyclictest18977-21kworker/u8:000:32:053
2358299213,2cyclictest0-21swapper/221:35:042
2358299212,2cyclictest0-21swapper/221:43:042
2358299212,2cyclictest0-21swapper/219:38:042
2358299210,4cyclictest0-21swapper/222:27:042
2358299210,4cyclictest0-21swapper/220:28:012
2358299210,4cyclictest0-21swapper/220:11:042
23581992118,2cyclictest25337-21kworker/u8:021:28:051
2358199210,5cyclictest0-21swapper/122:28:041
23580992118,2cyclictest3034-21kworker/u8:221:24:040
23580992118,2cyclictest21912-21kworker/u8:123:08:020
23580992118,2cyclictest21912-21kworker/u8:123:02:040
2358099210,18cyclictest0-21swapper/021:34:040
2358099210,18cyclictest0-21swapper/020:27:050
2358099210,16cyclictest0-21swapper/021:06:050
2358099210,16cyclictest0-21swapper/019:51:040
2358099210,16cyclictest0-21swapper/019:42:040
2358099210,16cyclictest0-21swapper/019:42:040
23583992017,2cyclictest3034-21kworker/u8:221:13:053
23583992017,2cyclictest3034-21kworker/u8:221:07:043
23583992017,2cyclictest21912-21kworker/u8:123:22:053
23583992017,2cyclictest21912-21kworker/u8:123:15:043
23583992017,2cyclictest21912-21kworker/u8:123:15:043
23583992017,2cyclictest19889-21kworker/u8:019:22:043
23583992017,2cyclictest19366-21kworker/u8:220:47:043
23583992017,2cyclictest18617-21kworker/u8:219:41:043
23583992017,2cyclictest18617-21kworker/u8:219:41:043
2358299201,2cyclictest0-21swapper/219:50:042
2358299200,3cyclictest30991-21ssh22:38:012
2358299200,3cyclictest0-21swapper/223:56:042
2358299200,3cyclictest0-21swapper/223:45:042
2358299200,3cyclictest0-21swapper/223:20:042
2358299200,3cyclictest0-21swapper/222:11:042
2358299200,3cyclictest0-21swapper/221:33:042
2358299200,3cyclictest0-21swapper/221:29:042
2358299200,3cyclictest0-21swapper/200:12:042
23581992017,2cyclictest24840-21kworker/u8:223:37:041
23581992017,2cyclictest21912-21kworker/u8:123:17:041
23581992017,2cyclictest21912-21kworker/u8:123:17:041
23581992017,2cyclictest11100-21kworker/u8:023:33:041
2358199200,2cyclictest7370-21diskmemload22:17:051
2358199200,2cyclictest0-21swapper/122:58:041
2358199200,2cyclictest0-21swapper/122:52:041
2358199200,18cyclictest0-21swapper/100:39:041
23580992017,2cyclictest6788-21kworker/u8:222:42:040
23580992017,2cyclictest6788-21kworker/u8:222:38:010
23580992017,2cyclictest5358-21kworker/u8:121:46:040
23580992017,2cyclictest25337-21kworker/u8:021:29:040
23580992017,2cyclictest24840-21kworker/u8:223:59:040
23580992017,2cyclictest24840-21kworker/u8:223:39:040
23580992017,2cyclictest11100-21kworker/u8:023:49:040
2358099200,18cyclictest0-21swapper/021:10:010
2358099200,18cyclictest0-21swapper/020:35:040
2358099200,18cyclictest0-21swapper/000:19:040
23583991916,2cyclictest18617-21kworker/u8:219:14:043
2358399190,2cyclictest0-21swapper/322:20:043
2358399190,17cyclictest0-21swapper/321:19:043
2358299190,4cyclictest0-21swapper/221:54:042
23581991916,2cyclictest7683-21kworker/u8:321:19:041
23581991916,2cyclictest5358-21kworker/u8:121:50:051
23581991916,2cyclictest19889-21kworker/u8:019:21:051
2358199190,2cyclictest0-21swapper/123:51:041
2358199190,2cyclictest0-21swapper/121:47:041
2358199190,2cyclictest0-21swapper/100:02:041
2358199190,17cyclictest0-21swapper/122:34:041
23580991916,2cyclictest25309-21kworker/u8:100:22:040
23580991916,2cyclictest21912-21kworker/u8:123:10:040
23580991916,2cyclictest18977-21kworker/u8:000:33:040
2358099190,9cyclictest0-21swapper/019:23:040
2358099190,2cyclictest0-21swapper/023:51:040
2358099190,2cyclictest0-21swapper/022:58:040
2358099190,2cyclictest0-21swapper/000:02:040
2358099190,18cyclictest0-21swapper/023:18:040
2358099190,18cyclictest0-21swapper/023:18:040
2358099190,18cyclictest0-21swapper/020:48:040
2358099190,18cyclictest0-21swapper/020:24:040
2358099190,18cyclictest0-21swapper/020:19:040
23583991815,2cyclictest9404-21kworker/u8:020:22:043
23583991815,2cyclictest1500-21kworker/u8:019:39:043
23583991815,2cyclictest13386-21kworker/u8:120:07:043
23581991815,2cyclictest18617-21kworker/u8:219:43:051
23581991815,2cyclictest18617-21kworker/u8:219:43:041
23581991815,2cyclictest18617-21kworker/u8:219:27:041
23581991815,2cyclictest13386-21kworker/u8:120:08:041
2358199180,2cyclictest0-21swapper/121:37:041
2358199180,2cyclictest0-21swapper/100:10:041
2358199180,16cyclictest0-21swapper/123:43:041
23580991815,2cyclictest25337-21kworker/u8:021:38:010
23580991815,2cyclictest19889-21kworker/u8:019:18:040
23580991815,2cyclictest18977-21kworker/u8:000:13:040
23580991815,2cyclictest15356-21kworker/u8:221:54:040
2358099180,2cyclictest0-21swapper/022:17:040
23583991714,2cyclictest9404-21kworker/u8:020:15:043
23583991714,2cyclictest9404-21kworker/u8:020:14:053
23583991714,2cyclictest9404-21kworker/u8:020:04:043
23583991714,2cyclictest18617-21kworker/u8:219:58:043
23583991714,2cyclictest18617-21kworker/u8:219:28:043
2358299172,2cyclictest0-21swapper/221:15:042
2358299171,14cyclictest0-21swapper/220:30:132
2358299170,5cyclictest0-21swapper/219:55:042
23581991714,2cyclictest6788-21kworker/u8:222:14:041
23581991714,2cyclictest25907-21kworker/u8:020:39:041
23581991714,2cyclictest18977-21kworker/u8:000:30:041
2358199170,2cyclictest0-21swapper/122:41:041
23580991714,2cyclictest9404-21kworker/u8:020:12:040
23580991714,2cyclictest13386-21kworker/u8:120:09:040
23583991613,2cyclictest9404-21kworker/u8:020:26:053
23583991613,2cyclictest25907-21kworker/u8:020:37:043
23582991613,2cyclictest176232sleep221:20:052
23582991612,2cyclictest8202-21fschecks_count21:10:162
2358299161,13cyclictest25400-21ssh22:32:032
23581991613,2cyclictest31515-21kworker/u8:121:09:041
23581991613,2cyclictest19366-21kworker/u8:220:49:041
23581991613,2cyclictest18617-21kworker/u8:219:15:041
23581991613,2cyclictest18617-21kworker/u8:219:12:041
23581991612,3cyclictest4138-21kworker/u8:223:26:041
2358199160,2cyclictest0-21swapper/123:47:041
2358199160,2cyclictest0-21swapper/123:04:041
2358199160,2cyclictest0-21swapper/122:03:041
2358199160,2cyclictest0-21swapper/121:58:041
2358199160,2cyclictest0-21swapper/121:32:041
2358199160,2cyclictest0-21swapper/100:18:041
23580991613,2cyclictest5645-21kworker/u8:119:46:040
23580991613,2cyclictest5645-21kworker/u8:119:46:040
23580991613,2cyclictest3034-21kworker/u8:220:59:040
2358099160,10cyclictest0-21swapper/020:43:040
142792160,3sleep20-21swapper/222:20:502
23583991512,2cyclictest19366-21kworker/u8:220:42:043
23583991512,2cyclictest19366-21kworker/u8:220:33:043
2358299151,12cyclictest9098-21ssh23:53:472
2358299150,3cyclictest0-21swapper/222:02:582
23581991512,2cyclictest9404-21kworker/u8:020:13:041
23581991512,2cyclictest31515-21kworker/u8:120:53:041
23580991512,2cyclictest1500-21kworker/u8:019:37:040
23583991411,2cyclictest31515-21kworker/u8:120:50:043
2358299149,3cyclictest3649-21snmpd22:06:222
23582991411,2cyclictest31-21ksoftirqd/200:05:122
23582991411,2cyclictest0-21swapper/222:46:062
23582991411,2cyclictest0-21swapper/200:21:162
2358299141,12cyclictest0-21swapper/200:16:262
2358299140,3cyclictest0-21swapper/200:32:012
2358299140,13cyclictest0-21swapper/222:43:262
2358299140,12cyclictest18993-21ssh23:30:362
2358299140,12cyclictest0-21swapper/223:43:402
23581991411,2cyclictest3034-21kworker/u8:221:02:041
23581991411,2cyclictest19366-21kworker/u8:220:32:041
23581991411,2cyclictest18617-21kworker/u8:219:35:041
23581991411,2cyclictest18617-21kworker/u8:219:34:041
2358199140,2cyclictest0-21swapper/123:22:051
2358199140,2cyclictest0-21swapper/100:27:051
2358199140,12cyclictest0-21swapper/121:13:041
23580991411,2cyclictest0-21swapper/023:30:160
2358099140,12cyclictest0-21swapper/000:35:050
2358399130,2cyclictest0-21swapper/322:35:183
2358399130,12cyclictest0-21swapper/322:25:173
2358399130,12cyclictest0-21swapper/319:30:143
23582991310,2cyclictest17371-21ssh22:56:152
23582991310,2cyclictest0-21swapper/223:35:262
23582991310,2cyclictest0-21swapper/223:25:172
23582991310,2cyclictest0-21swapper/200:36:302
23582991310,2cyclictest0-21swapper/200:03:082
2358299130,2cyclictest31322-21ssh23:10:272
2358299130,2cyclictest0-21swapper/223:00:112
2358299130,12cyclictest0-21swapper/223:16:502
2358299130,12cyclictest0-21swapper/223:16:492
2358299130,12cyclictest0-21swapper/222:52:172
2358299130,12cyclictest0-21swapper/221:55:362
2358299130,11cyclictest0-21swapper/223:05:572
23581991310,2cyclictest25907-21kworker/u8:020:56:041
23580991310,2cyclictest9404-21kworker/u8:020:02:040
2358399129,2cyclictest3034-21kworker/u8:221:00:043
2358399129,2cyclictest0-21swapper/322:05:553
2358299129,2cyclictest0-21swapper/221:45:152
2358299129,2cyclictest0-21swapper/220:55:162
2358299129,2cyclictest0-21swapper/219:30:132
2358299122,7cyclictest0-21swapper/220:49:582
2358299122,7cyclictest0-21swapper/219:44:012
2358299122,7cyclictest0-21swapper/219:44:012
2358299122,7cyclictest0-21swapper/219:20:012
2358299120,11cyclictest0-21swapper/219:15:002
2358299120,11cyclictest0-21swapper/200:25:312
2358299120,10cyclictest3034-21kworker/u8:221:06:012
2358199121,9cyclictest0-21swapper/120:20:001
2358199120,2cyclictest0-21swapper/100:24:041
2358199120,11cyclictest0-21swapper/120:21:021
2358099129,2cyclictest3034-21kworker/u8:221:04:040
2358099129,2cyclictest0-21swapper/019:10:160
127292120,2sleep10-21swapper/123:56:491
254672110,2sleep20-21swapper/219:13:352
2358299118,2cyclictest0-21swapper/221:03:552
2358299110,10cyclictest0-21swapper/220:44:092
2358299110,10cyclictest0-21swapper/220:15:022
2358299110,10cyclictest0-21swapper/220:05:012
2358199110,9cyclictest7370-21diskmemload22:35:231
2358199110,10cyclictest0-21swapper/122:05:311
66142100,1sleep20-21swapper/219:45:212
66142100,1sleep20-21swapper/219:45:212
2358299101,6cyclictest0-21swapper/220:20:112
2358299101,6cyclictest0-21swapper/219:25:462
2358299100,9cyclictest25907-21kworker/u8:020:51:042
2358199100,8cyclictest9628-21munin-node1
2358199100,8cyclictest21734-21aten2.4_r3power20:25:131
2358199100,1cyclictest0-21swapper/120:40:501
2358099107,2cyclictest0-21swapper/020:54:130
235839994,3cyclictest7713-21aten2.4-expect19:50:133
235829994,3cyclictest0-21swapper/220:35:162
235819996,2cyclictest82032sleep119:50:161
235839983,3cyclictest5727-21basename19:45:113
235839983,3cyclictest5727-21basename19:45:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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