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2026-04-13 - 20:14

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 Mon Apr 13, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22491211996,18sleep00-21swapper/007:07:270
22549211898,15sleep10-21swapper/107:08:121
22509211695,15sleep30-21swapper/307:07:423
22416210988,16sleep20-21swapper/207:06:292
4752780,0sleep30-21swapper/312:25:003
122492740,0sleep20-21swapper/208:01:012
233002710,0sleep00-21swapper/011:06:340
161172700,1sleep20-21swapper/210:25:402
230802300,0sleep30-21swapper/311:06:123
145992240,1sleep10-21swapper/111:31:041
2272099231,20cyclictest26304-21sed10:36:053
269602220,1sleep011-21rcuc/010:36:550
2272099220,20cyclictest15855-21latency_hist11:00:003
2272099211,18cyclictest17362-21hddtemp_smartct09:20:163
2271899210,19cyclictest0-21swapper/111:05:121
2271799210,19cyclictest0-21swapper/009:20:120
22719992017,2cyclictest31065-21kworker/u8:010:09:042
2271799200,15cyclictest0-21swapper/008:07:050
2272099190,17cyclictest21180-21kworker/u8:112:02:313
2272099190,17cyclictest0-21swapper/310:54:173
2272099190,17cyclictest0-21swapper/309:55:153
22719991916,2cyclictest30715-21kworker/u8:008:17:052
22719991916,2cyclictest25163-21kworker/u8:111:19:052
22719991916,2cyclictest16651-21kworker/u8:209:07:042
22719991916,2cyclictest14123-21kworker/u8:010:48:042
310552180,1sleep00-21swapper/010:08:020
272852180,1sleep1221ktimersoftd/107:20:131
2272099189,8cyclictest24740-21ssh12:15:263
2272099180,7cyclictest0-21swapper/312:27:073
2272099180,7cyclictest0-21swapper/311:56:473
2272099180,17cyclictest6775-21diskmemload11:35:113
2272099180,17cyclictest0-21swapper/312:08:303
2272099180,17cyclictest0-21swapper/311:42:263
2272099180,17cyclictest0-21swapper/310:43:223
2272099180,17cyclictest0-21swapper/310:18:163
2272099180,17cyclictest0-21swapper/310:12:563
2272099180,17cyclictest0-21swapper/309:41:143
2272099180,16cyclictest0-21swapper/311:50:143
22719991815,2cyclictest5219-21kworker/u8:110:19:052
22719991815,2cyclictest31665-21kworker/u8:212:36:042
22719991815,2cyclictest21180-21kworker/u8:111:59:052
22719991815,2cyclictest18740-21kworker/u8:311:06:052
2272099179,7cyclictest6775-21diskmemload09:47:003
22720991711,5cyclictest0-21swapper/308:10:163
2272099171,14cyclictest2538-21ntp_states10:45:193
2272099170,7cyclictest0-21swapper/311:14:043
2272099170,6cyclictest0-21swapper/311:21:013
2272099170,6cyclictest0-21swapper/309:39:513
2272099170,16cyclictest0-21swapper/312:34:583
2272099170,16cyclictest0-21swapper/312:11:573
2272099170,16cyclictest0-21swapper/311:30:203
2272099170,16cyclictest0-21swapper/311:29:563
2272099170,16cyclictest0-21swapper/311:02:293
2272099170,16cyclictest0-21swapper/310:25:003
2272099170,16cyclictest0-21swapper/309:25:183
2272099170,16cyclictest0-21swapper/309:16:033
2272099170,15cyclictest0-21swapper/309:50:373
22719991714,2cyclictest5741-21kworker/u8:109:48:012
22719991714,2cyclictest30715-21kworker/u8:007:58:042
22719991714,2cyclictest18144-21kworker/u8:012:24:052
22719991714,2cyclictest14123-21kworker/u8:010:33:042
2271799170,15cyclictest0-21swapper/012:05:100
2272099169,6cyclictest0-21swapper/312:37:263
22720991610,5cyclictest2453-21popularity-cont07:38:323
22720991610,5cyclictest0-21swapper/307:45:173
2272099160,7cyclictest0-21swapper/310:00:363
2272099160,15cyclictest0-21swapper/311:46:013
2272099160,15cyclictest0-21swapper/310:26:073
2272099160,15cyclictest0-21swapper/308:05:183
2272099160,15cyclictest0-21swapper/307:10:123
2272099160,14cyclictest31825-21grep07:30:153
2271999161,3cyclictest28116-21memory11:45:162
2271999161,3cyclictest0-21swapper/207:37:582
22719991613,2cyclictest30715-21kworker/u8:008:20:042
22719991613,2cyclictest28500-21kworker/u8:011:50:042
22719991613,2cyclictest13715-21kworker/u8:209:30:052
22719991612,2cyclictest0-21swapper/210:55:132
2271999161,13cyclictest21829-21ssh11:39:342
2271899161,13cyclictest3728-21runrttasks10:30:181
2272099155,8cyclictest6775-21diskmemload09:33:543
2272099154,9cyclictest6775-21diskmemload10:30:193
2272099151,12cyclictest9092-21ssh09:11:073
2272099150,6cyclictest0-21swapper/310:06:553
2272099150,5cyclictest0-21swapper/311:19:383
2272099150,13cyclictest0-21swapper/308:55:583
22719991512,2cyclictest30715-21kworker/u8:007:50:022
22719991512,2cyclictest17945-21kworker/u8:207:32:012
22719991512,2cyclictest17458-21kworker/u8:210:03:052
22719991512,2cyclictest16651-21kworker/u8:208:50:042
22719991512,2cyclictest16651-21kworker/u8:208:31:042
22719991510,3cyclictest20818-21kworker/u8:109:26:062
22719991510,3cyclictest13109-21apt-get08:05:112
22719991510,3cyclictest0-21swapper/209:16:042
22719991510,3cyclictest0-21swapper/207:25:162
2271999150,3cyclictest0-21swapper/211:30:512
22718991512,2cyclictest23-21ksoftirqd/111:42:581
22718991511,3cyclictest23-21ksoftirqd/111:15:501
323882140,3sleep032561-21ls08:51:040
2272099147,6cyclictest0-21swapper/308:00:173
2272099144,8cyclictest3728-21runrttasks07:50:183
2272099143,9cyclictest19263-21cut08:20:123
2272099141,11cyclictest28152-21ps08:40:173
2272099141,11cyclictest26730-21cron07:19:593
2272099141,11cyclictest25626-21fschecks_count08:35:133
2272099140,12cyclictest22926-21chrt08:29:473
2271999149,3cyclictest3127-21nscd10:44:152
22719991411,2cyclictest16651-21kworker/u8:208:39:042
22719991411,2cyclictest0-21swapper/209:20:152
2271999140,3cyclictest17983-21ssh12:09:182
2271999140,13cyclictest22312-21munin-node2
2271999140,12cyclictest0-21swapper/209:35:552
2271999140,12cyclictest0-21swapper/209:10:412
2271999140,12cyclictest0-21swapper/208:10:122
2271899142,11cyclictest21-21rcuc/109:22:571
2271899141,12cyclictest23-21ksoftirqd/112:37:401
22718991411,2cyclictest23-21ksoftirqd/112:03:551
22718991411,2cyclictest21-21rcuc/110:05:001
2271899140,2cyclictest0-21swapper/109:30:061
2271899140,12cyclictest23-21ksoftirqd/111:45:181
2271899140,12cyclictest18766-21tune2fs09:55:141
2271899140,12cyclictest0-21swapper/109:35:191
2271899140,12cyclictest0-21swapper/107:38:191
2271899140,11cyclictest0-21swapper/112:11:511
22717991410,2cyclictest4902-21ssh11:55:140
2271799140,13cyclictest0-21swapper/012:34:130
2271799140,13cyclictest0-21swapper/010:40:140
2271799140,13cyclictest0-21swapper/009:38:030
91112130,2sleep20-21swapper/210:52:022
2272099133,8cyclictest3158-21dbus-daemon07:25:043
2272099133,8cyclictest30382-21swap08:46:013
2272099133,8cyclictest30382-21swap08:46:003
2272099133,8cyclictest27820-21sed07:20:163
2272099133,8cyclictest18253-21mailstats08:16:013
2272099133,8cyclictest10024-21wc07:55:193
2272099132,9cyclictest3535-21gdbus07:40:043
2272099131,10cyclictest5393-21fschecks_count09:05:143
2272099131,10cyclictest32085-21ntp_kernel_err08:50:183
2272099130,12cyclictest0-21swapper/309:00:123
2271999139,2cyclictest25163-21kworker/u8:111:10:042
2271999139,2cyclictest0-21swapper/212:00:082
2271999138,3cyclictest3102-21ssh12:26:402
22719991310,2cyclictest5741-21kworker/u8:109:59:042
22719991310,2cyclictest0-21swapper/212:15:242
22719991310,2cyclictest0-21swapper/212:12:292
22719991310,2cyclictest0-21swapper/210:21:182
22719991310,2cyclictest0-21swapper/207:40:122
2271999130,2cyclictest0-21swapper/212:30:532
2271999130,2cyclictest0-21swapper/211:41:572
2271999130,2cyclictest0-21swapper/211:27:302
2271999130,2cyclictest0-21swapper/209:00:132
2271999130,12cyclictest0-21swapper/211:03:352
2271999130,12cyclictest0-21swapper/210:35:122
2271999130,12cyclictest0-21swapper/209:40:442
2271999130,11cyclictest0-21swapper/211:20:322
2271999130,11cyclictest0-21swapper/209:50:202
2271899139,3cyclictest221ktimersoftd/112:30:191
2271899131,11cyclictest23-21ksoftirqd/109:44:281
2271899131,11cyclictest0-21swapper/112:23:261
22718991310,2cyclictest3728-21runrttasks09:46:571
22718991310,2cyclictest23-21ksoftirqd/109:18:171
22718991310,2cyclictest221ktimersoftd/110:56:381
22718991310,2cyclictest21-21rcuc/108:11:001
22718991310,2cyclictest0-21swapper/112:15:391
22718991310,2cyclictest0-21swapper/112:05:171
22718991310,2cyclictest0-21swapper/111:57:121
22718991310,2cyclictest0-21swapper/111:39:371
22718991310,2cyclictest0-21swapper/110:15:161
22718991310,2cyclictest0-21swapper/110:03:411
22718991310,2cyclictest0-21swapper/109:10:181
22718991310,2cyclictest0-21swapper/109:00:391
22718991310,2cyclictest0-21swapper/107:15:001
2271899130,2cyclictest0-21swapper/110:21:401
2271899130,2cyclictest0-21swapper/109:51:461
2271899130,12cyclictest221ktimersoftd/110:13:211
2271899130,12cyclictest221ktimersoftd/109:29:581
2271899130,12cyclictest0-21swapper/110:43:181
2271899130,11cyclictest6775-21diskmemload12:26:481
2271899130,11cyclictest0-21swapper/111:25:391
22717991310,2cyclictest0-21swapper/009:30:040
2271799130,2cyclictest0-21swapper/009:10:150
2271799130,11cyclictest0-21swapper/012:16:040
39202120,2sleep00-21swapper/012:27:550
2272099121,9cyclictest0-21swapper/308:30:143
2271999129,2cyclictest0-21swapper/210:12:072
2271999120,11cyclictest0-21swapper/207:15:122
2271899129,2cyclictest6775-21diskmemload11:00:491
2271899129,2cyclictest0-21swapper/110:46:211
2271899126,4cyclictest0-21swapper/110:50:171
2271899123,8cyclictest21-21rcuc/107:30:171
2271899122,2cyclictest23-21ksoftirqd/111:10:151
2271899121,10cyclictest21-21rcuc/111:52:111
2271899120,11cyclictest0-21swapper/111:21:411
2271899120,11cyclictest0-21swapper/110:38:371
2271899120,11cyclictest0-21swapper/108:55:151
2271899120,11cyclictest0-21swapper/107:45:291
2271899120,10cyclictest0-21swapper/110:25:511
2271899120,10cyclictest0-21swapper/108:45:371
2271899120,10cyclictest0-21swapper/108:45:371
2271799129,2cyclictest0-21swapper/009:57:130
2271799129,2cyclictest0-21swapper/007:25:140
2271799120,2cyclictest0-21swapper/011:10:140
2271799120,10cyclictest0-21swapper/010:33:470
2271799120,10cyclictest0-21swapper/010:14:540
203802120,1sleep00-21swapper/011:04:340
98632110,1sleep00-21swapper/010:53:100
2271999118,2cyclictest0-21swapper/207:12:532
2271999112,7cyclictest0-21swapper/208:59:582
2271999112,7cyclictest0-21swapper/208:42:592
2271899118,2cyclictest21-21rcuc/108:50:121
2271899110,9cyclictest30819-21sleep07:30:011
2271899110,9cyclictest0-21swapper/108:35:001
2271899110,10cyclictest0-21swapper/107:55:131
2271799118,2cyclictest5741-21kworker/u8:109:51:050
2271799118,2cyclictest2261-21apt-get07:37:580
2271799118,2cyclictest14834-21apt-get10:25:110
2271799116,3cyclictest21563-21sh09:25:110
2271799115,2cyclictest3521-21ssh09:40:050
2271799110,2cyclictest0-21swapper/009:46:340
87162100,7sleep00-21swapper/010:18:330
35862100,1sleep00-21swapper/010:46:060
316422100,1sleep00-21swapper/012:23:070
2271899107,2cyclictest21-21rcuc/108:40:111
2271899102,7cyclictest221ktimersoftd/108:35:141
2271899101,2cyclictest221ktimersoftd/107:15:161
2271899100,9cyclictest0-21swapper/107:51:031
2271899100,8cyclictest0-21swapper/108:15:141
2271899100,8cyclictest0-21swapper/108:00:131
2271899100,8cyclictest0-21swapper/107:40:031
2271899100,2cyclictest0-21swapper/108:20:131
2271899100,2cyclictest0-21swapper/108:05:111
2271799103,6cyclictest0-21swapper/011:36:000
2271799103,6cyclictest0-21swapper/007:47:380
2271799100,9cyclictest15365-21kworker/u8:211:45:050
2271799100,9cyclictest0-21swapper/011:28:320
2271799100,9cyclictest0-21swapper/007:40:060
2271799100,7cyclictest6775-21diskmemload11:52:580
2271799100,7cyclictest14406-21ssh11:31:020
2271799100,7cyclictest0-21swapper/007:10:010
2271799100,2cyclictest0-21swapper/012:11:550
227199994,3cyclictest29293-21aten2.4_r3power08:45:112
227199994,3cyclictest29293-21aten2.4_r3power08:45:102
227199991,3cyclictest27257-21cpuspeed_turbos07:20:122
227199990,7cyclictest6085-21taskset07:45:302
227189996,2cyclictest221ktimersoftd/109:05:161
227189996,2cyclictest21-21rcuc/108:25:111
227179996,2cyclictest6775-21diskmemload10:55:330
227179996,2cyclictest10948-21diskstats12:35:140
227179996,2cyclictest0-21swapper/010:22:230
227179996,2cyclictest0-21swapper/008:20:130
227179996,2cyclictest0-21swapper/007:50:160
227179995,2cyclictest5445-21sh11:21:330
227179995,2cyclictest3728-21runrttasks08:32:270
227179995,2cyclictest31249-21hwlatdetect11:15:140
227179995,2cyclictest27085-21sort11:45:000
227179994,4cyclictest0-21swapper/007:22:040
227179994,3cyclictest5668-21kernelversion09:05:160
227179990,8cyclictest0-21swapper/012:00:230
227179990,8cyclictest0-21swapper/010:02:020
227179990,6cyclictest0-21swapper/008:44:590
227179990,2cyclictest13303-21ssh09:15:500
227179985,2cyclictest11421-21df_abs08:00:130
227179985,2cyclictest0-21swapper/008:48:430
227179985,2cyclictest0-21swapper/008:48:430
227179985,2cyclictest0-21swapper/008:35:100
227179984,3cyclictest22048-21ntpq08:25:170
227179984,2cyclictest9174-21telnet07:55:130
227179983,3cyclictest17345-21grep08:15:140
227179981,5cyclictest4562-21gdm-simple-gree09:03:590
227179980,7cyclictest0-21swapper/007:16:020
16169280,1sleep00-21swapper/008:10:490
227179973,3cyclictest31028-21seq07:30:010
227179973,3cyclictest1301-21fschecks_time08:55:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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