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2026-08-04 - 15:14

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 Tue Aug 04, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28907211794,18sleep00-21swapper/007:06:000
29506211493,16sleep20-21swapper/207:08:392
29588210988,16sleep10-21swapper/107:09:421
28841210998,6sleep30-21swapper/307:05:273
223252760,0sleep20-21swapper/210:25:012
291372710,0sleep00-21swapper/011:38:010
209592540,0sleep00-21swapper/012:02:340
29639993213,18cyclictest0-21swapper/010:00:140
266442260,0sleep10-21swapper/110:29:211
187642260,4sleep32964299cyclictest11:27:033
2964099250,20cyclictest1033-21rm09:30:111
2964099232,18cyclictest0-21swapper/111:02:051
29640992320,2cyclictest32421-21kworker/u8:211:11:051
171662230,1sleep20-21swapper/211:59:162
2964199221,3cyclictest21029-21rm11:30:112
2964199221,19cyclictest0-21swapper/210:00:142
2964099223,2cyclictest13592-21diskmemload10:46:041
29640992219,2cyclictest32166-21kworker/u8:108:40:041
29640992219,2cyclictest29083-21kworker/u8:111:42:021
29640992219,2cyclictest20686-21kworker/u8:112:35:051
29640992219,2cyclictest14404-21kworker/u8:012:32:041
29640992219,2cyclictest11392-21kworker/u8:210:18:051
29640992219,2cyclictest1002-21kworker/u8:107:20:051
311472210,0sleep20-21swapper/211:06:252
2964199210,19cyclictest0-21swapper/208:15:132
2964099213,2cyclictest0-21swapper/109:20:021
2964099212,2cyclictest0-21swapper/111:21:041
29640992118,2cyclictest6664-21kworker/u8:008:17:041
29640992118,2cyclictest342-21kworker/u8:010:04:061
29640992118,2cyclictest32166-21kworker/u8:108:39:051
29640992118,2cyclictest26698-21kworker/u8:012:09:051
29640992118,2cyclictest20686-21kworker/u8:112:17:031
29640992118,2cyclictest20686-21kworker/u8:112:12:051
29640992118,2cyclictest17771-21kworker/u8:110:32:051
29639992118,2cyclictest13286-21kworker/u8:009:51:050
2963999210,2cyclictest0-21swapper/010:30:100
2964199201,2cyclictest13592-21diskmemload10:45:122
2964199200,2cyclictest0-21swapper/210:30:102
29640992017,2cyclictest4058-21kworker/u8:212:22:051
29640992017,2cyclictest4058-21kworker/u8:212:22:041
29640992017,2cyclictest3252-21kworker/u8:208:50:041
29640992017,2cyclictest17425-21kworker/u8:111:29:051
29640992015,3cyclictest15836-21ssh09:45:121
2964099201,2cyclictest0-21swapper/111:52:021
2964099201,2cyclictest0-21swapper/111:32:041
2964099201,2cyclictest0-21swapper/110:13:051
2964099201,2cyclictest0-21swapper/110:06:051
2964099200,18cyclictest0-21swapper/109:42:041
2964099200,15cyclictest0-21swapper/109:58:041
29639992017,2cyclictest32421-21kworker/u8:210:58:010
29639992017,2cyclictest11392-21kworker/u8:210:14:060
2963999200,18cyclictest0-21swapper/008:15:120
2963999200,14cyclictest0-21swapper/008:46:050
29642991911,6cyclictest0-21swapper/311:00:123
29640991916,2cyclictest32166-21kworker/u8:108:47:051
29640991916,2cyclictest15893-21kworker/u8:108:10:051
2964099190,2cyclictest0-21swapper/111:15:051
2964099190,2cyclictest0-21swapper/109:50:061
2964099190,2cyclictest0-21swapper/109:38:061
2964099190,14cyclictest0-21swapper/109:16:041
29639991916,2cyclictest27364-21kworker/u8:311:04:020
29642991815,2cyclictest14673-21ssh12:30:133
29640991815,2cyclictest15893-21kworker/u8:108:08:051
29640991815,2cyclictest1002-21kworker/u8:107:28:041
2964099180,2cyclictest0-21swapper/111:36:051
2964099180,2cyclictest0-21swapper/110:43:051
2964099180,2cyclictest0-21swapper/109:12:051
2964099180,2cyclictest0-21swapper/107:50:011
2964099180,1cyclictest0-21swapper/110:55:121
29639991815,2cyclictest342-21kworker/u8:010:07:040
29639991815,2cyclictest17771-21kworker/u8:110:42:050
29639991815,2cyclictest17771-21kworker/u8:110:21:040
29639991815,2cyclictest15893-21kworker/u8:108:01:040
2963999180,12cyclictest0-21swapper/008:31:050
2964299170,14cyclictest14315-21copy10:50:013
29640991714,2cyclictest8145-21kworker/u8:011:58:011
29640991714,2cyclictest11405-21kworker/u8:207:43:051
2964099170,9cyclictest0-21swapper/108:59:051
2964099170,2cyclictest0-21swapper/112:01:051
2964099170,2cyclictest0-21swapper/111:46:041
2964099170,2cyclictest0-21swapper/108:29:041
2964099170,2cyclictest0-21swapper/107:33:051
2964099170,16cyclictest0-21swapper/107:45:051
29639991714,2cyclictest8424-21kworker/u8:312:28:050
29639991714,2cyclictest6664-21kworker/u8:007:54:040
29639991714,2cyclictest29083-21kworker/u8:111:54:020
29639991714,2cyclictest25089-21kworker/u8:309:55:040
29639991714,2cyclictest0-21swapper/011:30:120
2963999170,12cyclictest0-21swapper/009:18:040
159382170,0sleep20-21swapper/209:11:062
2964199169,5cyclictest21580-21ssh12:36:202
2964199161,3cyclictest0-21swapper/211:13:242
2964199161,13cyclictest16947-21latency11:25:182
29640991613,2cyclictest13727-21kworker/u8:110:51:051
2964099161,2cyclictest0-21swapper/107:36:041
2964099161,13cyclictest0-21swapper/109:27:421
29639991613,2cyclictest9603-21kworker/u8:207:24:020
29639991613,2cyclictest9603-21kworker/u8:207:11:050
29639991613,2cyclictest6664-21kworker/u8:008:26:040
29639991613,2cyclictest32421-21kworker/u8:211:08:050
29639991613,2cyclictest29083-21kworker/u8:111:43:050
29639991613,2cyclictest26253-21kworker/u8:009:22:050
29639991613,2cyclictest17771-21kworker/u8:110:38:060
29639991613,2cyclictest15893-21kworker/u8:108:11:050
2963999160,14cyclictest0-21swapper/009:31:020
2963999160,11cyclictest0-21swapper/009:10:050
2964299152,7cyclictest0-21swapper/309:06:593
29642991510,3cyclictest11498-21ssh10:13:323
2964299150,2cyclictest11514-21sendmail-mta11:53:053
2964199151,12cyclictest0-21swapper/211:18:582
2964199150,2cyclictest0-21swapper/209:30:182
2964199150,2cyclictest0-21swapper/207:20:172
29640991512,2cyclictest26152-21kworker/u8:208:24:061
29639991512,2cyclictest8145-21kworker/u8:011:59:040
29639991512,2cyclictest14404-21kworker/u8:012:30:040
29639991510,3cyclictest18138-21ssh11:26:060
2963999150,3cyclictest10170-21fschecks_count07:40:150
2963999150,14cyclictest0-21swapper/012:05:540
29642991411,2cyclictest0-21swapper/309:25:413
2964299141,11cyclictest28352-21iostat_ios12:10:163
29642991410,2cyclictest0-21swapper/312:28:523
2964299140,9cyclictest0-21swapper/309:36:053
2964299140,2cyclictest0-21swapper/310:58:513
2964299140,2cyclictest0-21swapper/308:25:413
2964299140,13cyclictest0-21swapper/311:45:123
2964299140,13cyclictest0-21swapper/309:23:023
2964299140,12cyclictest3728-21runrttasks11:08:013
2964299140,12cyclictest0-21swapper/311:15:143
2964299140,11cyclictest0-21swapper/310:09:203
2964199149,3cyclictest0-21swapper/212:28:152
2964199141,7cyclictest28355-21ssh09:25:012
29641991410,2cyclictest0-21swapper/207:50:162
2964199140,13cyclictest0-21swapper/209:45:382
2964199140,12cyclictest5520-21ssh10:06:502
2964199140,12cyclictest0-21swapper/212:06:012
2964199140,12cyclictest0-21swapper/207:40:142
2964099140,2cyclictest0-21swapper/110:24:041
2964099140,2cyclictest0-21swapper/107:55:051
2964099140,12cyclictest32606-21df10:35:151
2963999149,3cyclictest28675-21tail09:25:140
29639991411,2cyclictest6664-21kworker/u8:007:35:050
29639991411,2cyclictest26152-21kworker/u8:208:23:050
2963999140,12cyclictest0-21swapper/011:15:150
2963999140,10cyclictest0-21swapper/011:24:040
2964299138,3cyclictest21516-21ssh09:17:073
2964299132,8cyclictest4562-21gdm-simple-gree11:56:583
2964299132,8cyclictest13592-21diskmemload10:25:023
29642991310,2cyclictest0-21swapper/308:20:153
2964299130,5cyclictest0-21swapper/309:01:583
2964299130,2cyclictest0-21swapper/310:37:333
2964299130,2cyclictest0-21swapper/310:01:063
2964299130,12cyclictest0-21swapper/310:15:313
2964299130,12cyclictest0-21swapper/309:53:423
2964299130,12cyclictest0-21swapper/308:42:023
2964299130,12cyclictest0-21swapper/307:10:503
2964299130,11cyclictest17239-21sendmail-mta09:13:083
2964299130,11cyclictest0-21swapper/312:06:253
29641991310,2cyclictest8845-21ssh10:10:182
29641991310,2cyclictest0-21swapper/212:13:472
29641991310,2cyclictest0-21swapper/211:50:092
29641991310,2cyclictest0-21swapper/210:28:582
29641991310,2cyclictest0-21swapper/209:57:392
29641991310,2cyclictest0-21swapper/209:52:202
29641991310,2cyclictest0-21swapper/209:40:002
29641991310,2cyclictest0-21swapper/209:26:202
2964199130,2cyclictest0-21swapper/212:30:072
2964199130,2cyclictest0-21swapper/211:36:492
2964199130,2cyclictest0-21swapper/211:01:482
2964199130,2cyclictest0-21swapper/210:35:152
2964199130,2cyclictest0-21swapper/209:19:192
2964199130,2cyclictest0-21swapper/208:25:162
2964199130,12cyclictest0-21swapper/212:04:482
2964199130,12cyclictest0-21swapper/211:47:572
2964199130,12cyclictest0-21swapper/211:20:572
2964199130,12cyclictest0-21swapper/210:40:072
2964199130,11cyclictest0-21swapper/210:15:122
2964099131,6cyclictest0-21swapper/112:25:011
29640991310,2cyclictest0-21swapper/109:00:011
2964099130,2cyclictest0-21swapper/111:05:041
2963999132,6cyclictest0-21swapper/009:45:010
2963999132,6cyclictest0-21swapper/008:55:000
29639991310,2cyclictest32421-21kworker/u8:211:14:040
29639991310,2cyclictest32166-21kworker/u8:108:55:050
29639991310,2cyclictest0-21swapper/012:21:040
29639991310,2cyclictest0-21swapper/012:21:040
29639991310,2cyclictest0-21swapper/008:35:160
29639991310,2cyclictest0-21swapper/007:15:160
2963999130,2cyclictest0-21swapper/012:12:360
2963999130,11cyclictest0-21swapper/011:47:020
2963999130,11cyclictest0-21swapper/009:38:540
136562130,2sleep00-21swapper/010:49:040
2964299129,2cyclictest30402-21df_inode08:30:143
2964299129,2cyclictest18512-21hddtemp_smartct08:00:153
2964299129,2cyclictest0-21swapper/308:55:183
2964299123,5cyclictest0-21swapper/308:46:003
2964299122,7cyclictest4562-21gdm-simple-gree09:31:593
2964299122,7cyclictest0-21swapper/312:15:023
2964299122,7cyclictest0-21swapper/310:47:593
2964299122,7cyclictest0-21swapper/308:39:583
2964299122,7cyclictest0-21swapper/308:19:593
2964299120,7cyclictest0-21swapper/309:45:053
2964299120,2cyclictest0-21swapper/311:10:393
2964299120,2cyclictest0-21swapper/309:55:033
2964299120,2cyclictest0-21swapper/308:10:163
2964299120,2cyclictest0-21swapper/307:50:113
2964299120,2cyclictest0-21swapper/307:25:183
2964299120,11cyclictest0-21swapper/312:24:433
2964299120,11cyclictest0-21swapper/312:24:423
2964299120,11cyclictest0-21swapper/312:00:183
2964299120,11cyclictest0-21swapper/310:32:123
2964299120,11cyclictest0-21swapper/309:40:173
2964299120,10cyclictest0-21swapper/311:35:443
2964299120,10cyclictest0-21swapper/311:33:233
2964199129,2cyclictest1852-21ssh11:43:302
2964199129,2cyclictest0-21swapper/212:20:182
2964199129,2cyclictest0-21swapper/212:20:172
2964199129,2cyclictest0-21swapper/208:40:162
2964199124,7cyclictest0-21swapper/208:37:582
2964199122,5cyclictest0-21swapper/207:14:592
2964199120,2cyclictest0-21swapper/212:15:392
2964199120,2cyclictest0-21swapper/210:50:202
2964199120,2cyclictest0-21swapper/209:35:102
2964199120,2cyclictest0-21swapper/208:56:052
2964199120,11cyclictest0-21swapper/210:55:102
2964199120,11cyclictest0-21swapper/207:15:192
2964099121,3cyclictest11804-21munin-node1
2964099120,2cyclictest0-21swapper/107:15:051
2964099120,10cyclictest0-21swapper/108:00:121
2963999129,2cyclictest0-21swapper/010:25:300
2963999129,2cyclictest0-21swapper/010:17:360
2963999129,2cyclictest0-21swapper/009:40:050
2963999120,2cyclictest0-21swapper/010:50:060
2963999120,2cyclictest0-21swapper/007:45:160
2963999120,11cyclictest0-21swapper/012:36:540
2963999120,11cyclictest0-21swapper/012:15:320
88582110,2sleep30-21swapper/310:44:103
2964299118,2cyclictest20989-21ssh10:23:083
2964299118,2cyclictest0-21swapper/312:35:193
2964299118,2cyclictest0-21swapper/311:20:153
2964299112,6cyclictest0-21swapper/307:31:023
2964299110,7cyclictest0-21swapper/307:38:583
2964299110,2cyclictest0-21swapper/307:15:173
2964199118,2cyclictest0-21swapper/209:08:412
2964199118,2cyclictest0-21swapper/208:03:402
2964199118,2cyclictest0-21swapper/207:30:512
2964199111,6cyclictest0-21swapper/207:47:202
2964199111,6cyclictest0-21swapper/207:26:022
2964199111,5cyclictest0-21swapper/208:35:002
2964199110,6cyclictest0-21swapper/208:10:002
2964099110,3cyclictest0-21swapper/107:10:131
2964099110,2cyclictest0-21swapper/108:33:051
2963999118,2cyclictest7760-21kworker/u8:009:03:050
2963999118,2cyclictest1002-21kworker/u8:107:26:040
2963999118,2cyclictest0-21swapper/007:55:130
2964299102,5cyclictest0-21swapper/311:42:013
2964299102,5cyclictest0-21swapper/307:42:593
2964199105,3cyclictest26441-21uniq08:20:152
2963999107,2cyclictest6664-21kworker/u8:007:32:050
2963999105,3cyclictest20217-21cpuspeed_turbos08:05:130
296429996,2cyclictest0-21swapper/308:51:053
296429994,3cyclictest1959-21tune2fs07:20:143
296429992,6cyclictest0-21swapper/307:48:013
296429992,5cyclictest3688-21Xorg08:09:593
296429990,6cyclictest0-21swapper/307:58:023
296419996,2cyclictest0-21swapper/207:35:122
296419994,3cyclictest10362-21tr09:00:152
296419991,3cyclictest22196-21tr08:10:142
296399994,3cyclictest3728-21runrttasks09:09:350
296419985,2cyclictest0-21swapper/208:50:122
296419983,3cyclictest36252sleep208:45:052
296419983,3cyclictest16123-21ls07:55:142
296399983,3cyclictest0-21swapper/008:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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