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2026-04-22 - 01:05

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 Apr 21, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19466211596,12sleep10-21swapper/107:05:131
211972114103,6sleep00-21swapper/007:09:240
21177211094,11sleep20-21swapper/207:09:102
20985210892,11sleep30-21swapper/307:06:433
98042830,1sleep30-21swapper/312:35:203
16372810,0sleep00-21swapper/010:46:020
222782750,0sleep00-21swapper/009:26:260
11482710,0sleep00-21swapper/010:11:550
79312700,0sleep00-21swapper/007:55:140
115922630,1sleep30-21swapper/309:15:303
255922560,0sleep30-21swapper/307:20:113
115892300,1sleep00-21swapper/011:30:150
2127199250,23cyclictest0-21swapper/212:05:122
2126999251,22cyclictest19157-21ssh11:05:110
313232240,1sleep20-21swapper/212:25:002
259842230,1sleep1221ktimersoftd/107:20:141
2127199210,19cyclictest0-21swapper/210:00:112
2127299201,18cyclictest0-21swapper/311:45:123
21269992017,2cyclictest30246-21kworker/u8:012:38:050
21269992017,2cyclictest1430-21kworker/u8:009:18:050
21269991916,2cyclictest3667-21kworker/u8:010:21:050
21269991916,2cyclictest32594-21kworker/u8:009:46:050
21269991915,2cyclictest0-21swapper/008:00:110
21270991815,2cyclictest17014-21kworker/u8:211:27:051
2127099181,15cyclictest5272-21diskmemload10:00:181
21269991815,2cyclictest1430-21kworker/u8:009:03:050
21269991815,2cyclictest11371-21kworker/u8:212:04:050
21269991813,4cyclictest0-21swapper/011:48:050
2127199172,13cyclictest19910-21wc11:05:162
21270991714,2cyclictest32594-21kworker/u8:009:47:051
21269991714,2cyclictest30246-21kworker/u8:012:29:050
21269991714,2cyclictest30246-21kworker/u8:012:29:050
21269991714,2cyclictest1430-21kworker/u8:009:31:050
2127299160,15cyclictest0-21swapper/307:55:113
2127199161,13cyclictest9390-21grep12:01:022
21270991613,2cyclictest8028-21kworker/u8:212:35:051
21270991613,2cyclictest30246-21kworker/u8:012:27:051
21270991613,2cyclictest30246-21kworker/u8:012:27:051
21270991613,2cyclictest21142-21kworker/u8:108:31:051
21270991613,2cyclictest1170-21kworker/u8:008:15:051
21270991611,3cyclictest0-21swapper/112:20:181
21270991611,3cyclictest0-21swapper/108:10:591
2127099160,11cyclictest0-21swapper/110:58:041
21269991613,2cyclictest5845-21kworker/u8:309:53:050
21269991613,2cyclictest3667-21kworker/u8:010:42:020
21269991613,2cyclictest17579-21kworker/u8:107:12:040
21269991613,2cyclictest1430-21kworker/u8:009:14:020
21269991613,2cyclictest1170-21kworker/u8:007:49:050
21269991611,3cyclictest29699-21munin-node0
21269991611,3cyclictest0-21swapper/010:19:590
2126999160,2cyclictest0-21swapper/011:12:060
2127299150,13cyclictest0-21swapper/309:51:033
2127199151,3cyclictest0-21swapper/209:25:242
2127199150,12cyclictest0-21swapper/212:25:182
2127199150,12cyclictest0-21swapper/212:25:172
2127099152,7cyclictest21615-21copy12:15:001
21270991512,2cyclictest12601-21kworker/u8:109:21:051
21270991512,2cyclictest0-21swapper/110:40:171
21270991512,2cyclictest0-21swapper/110:08:371
21270991511,2cyclictest295702sleep107:30:111
2127099151,12cyclictest23136-21ssh12:15:321
2127099150,13cyclictest0-21swapper/112:06:061
2127099150,11cyclictest0-21swapper/111:07:041
21269991512,2cyclictest25201-21kworker/u8:008:43:050
21269991512,2cyclictest23561-21kworker/u8:207:28:040
21269991512,2cyclictest23504-21kworker/u8:011:23:040
21269991512,2cyclictest21142-21kworker/u8:108:36:060
21269991512,2cyclictest21142-21kworker/u8:108:28:040
21269991512,2cyclictest17579-21kworker/u8:107:44:050
21269991512,2cyclictest1170-21kworker/u8:008:13:050
2126999150,13cyclictest30732-21fschecks_time11:50:150
2126999150,13cyclictest0-21swapper/010:30:490
21272991411,2cyclictest0-21swapper/311:25:193
2127299140,2cyclictest0-21swapper/311:38:443
2127299140,2cyclictest0-21swapper/310:30:543
2127299140,12cyclictest0-21swapper/310:23:443
2127199143,6cyclictest0-21swapper/208:45:012
21271991411,2cyclictest0-21swapper/211:55:192
21271991411,2cyclictest0-21swapper/210:06:002
2127199140,13cyclictest0-21swapper/209:41:012
2127199140,12cyclictest29789-21cpuspeed_turbos07:30:132
2127199140,12cyclictest0-21swapper/211:30:152
2127199140,12cyclictest0-21swapper/210:30:002
2127199140,12cyclictest0-21swapper/207:40:132
2127099142,6cyclictest0-21swapper/110:50:001
2127099141,2cyclictest0-21swapper/109:11:021
21270991411,2cyclictest5845-21kworker/u8:310:17:041
21270991411,2cyclictest5272-21diskmemload09:17:561
21270991411,2cyclictest32594-21kworker/u8:009:50:041
21270991411,2cyclictest23561-21kworker/u8:207:38:041
21270991411,2cyclictest23556-21kworker/u8:011:43:051
21270991411,2cyclictest1170-21kworker/u8:007:47:041
21270991411,2cyclictest0-21swapper/109:31:171
2127099140,2cyclictest0-21swapper/112:34:371
2127099140,2cyclictest0-21swapper/111:50:581
2127099140,2cyclictest0-21swapper/111:35:181
2127099140,12cyclictest0-21swapper/110:45:381
21269991411,2cyclictest30462-21kworker/u8:110:59:040
21269991411,2cyclictest23021-21kworker/u8:112:18:050
21269991411,2cyclictest20102-21kworker/u8:209:40:010
2126999140,3cyclictest9444-21ssh10:54:560
2126999140,2cyclictest0-21swapper/010:00:130
2126999140,12cyclictest5272-21diskmemload10:08:030
2126999140,12cyclictest16771-21ssh09:20:580
2126999140,12cyclictest0-21swapper/012:06:460
2126999140,12cyclictest0-21swapper/011:15:570
2126999140,12cyclictest0-21swapper/011:04:490
2126999140,12cyclictest0-21swapper/008:30:130
2127299139,2cyclictest0-21swapper/312:21:033
2127299132,2cyclictest0-21swapper/310:57:453
21272991310,2cyclictest0-21swapper/312:32:243
21272991310,2cyclictest0-21swapper/312:10:403
21272991310,2cyclictest0-21swapper/311:56:493
21272991310,2cyclictest0-21swapper/310:41:433
21272991310,2cyclictest0-21swapper/308:50:113
2127299130,2cyclictest0-21swapper/310:00:133
2127299130,12cyclictest0-21swapper/311:24:083
2127299130,11cyclictest0-21swapper/311:32:433
2127299130,11cyclictest0-21swapper/310:15:283
2127299130,11cyclictest0-21swapper/309:30:103
2127199132,7cyclictest17102-21ssh12:10:112
2127199132,6cyclictest0-21swapper/207:20:002
2127199131,7cyclictest0-21swapper/210:00:012
2127199131,6cyclictest0-21swapper/207:39:592
21271991310,2cyclictest0-21swapper/211:45:172
21271991310,2cyclictest0-21swapper/211:40:102
21271991310,2cyclictest0-21swapper/210:16:532
21271991310,2cyclictest0-21swapper/209:10:152
2127199130,2cyclictest0-21swapper/212:34:022
2127199130,2cyclictest0-21swapper/211:01:162
2127199130,12cyclictest0-21swapper/210:35:162
2127199130,12cyclictest0-21swapper/209:45:012
2127199130,12cyclictest0-21swapper/208:45:152
2127199130,12cyclictest0-21swapper/207:25:142
2127199130,11cyclictest0-21swapper/210:12:452
2127099132,6cyclictest0-21swapper/108:25:001
2127099132,6cyclictest0-21swapper/108:00:001
21270991310,2cyclictest5272-21diskmemload12:00:151
21270991310,2cyclictest21142-21kworker/u8:108:37:041
21270991310,2cyclictest15469-21kworker/u8:110:31:041
2127099130,9cyclictest0-21swapper/109:26:041
2127099130,2cyclictest0-21swapper/111:30:121
2127099130,2cyclictest0-21swapper/109:41:031
2127099130,2cyclictest0-21swapper/108:21:001
2127099130,12cyclictest0-21swapper/111:03:281
2127099130,12cyclictest0-21swapper/110:21:481
2126999138,3cyclictest0-21swapper/012:21:310
2126999132,6cyclictest0-21swapper/007:30:000
21269991310,2cyclictest23561-21kworker/u8:207:35:040
21269991310,2cyclictest21142-21kworker/u8:108:59:050
21269991310,2cyclictest15751-21kworker/u8:208:22:060
21269991310,2cyclictest0-21swapper/012:10:100
2126999130,12cyclictest0-21swapper/011:27:230
2126999130,12cyclictest0-21swapper/009:56:240
2126999130,11cyclictest3835-21ssh11:55:360
2126999130,11cyclictest0-21swapper/011:35:480
2127299129,2cyclictest5840-21ssh09:10:133
2127299129,2cyclictest0-21swapper/311:43:303
2127299129,2cyclictest0-21swapper/311:00:183
2127299129,2cyclictest0-21swapper/309:47:343
2127299129,2cyclictest0-21swapper/309:44:043
2127299129,2cyclictest0-21swapper/309:25:483
2127299129,2cyclictest0-21swapper/307:10:183
2127299122,7cyclictest0-21swapper/308:58:593
2127299122,6cyclictest0-21swapper/308:16:023
2127299121,7cyclictest0-21swapper/307:35:003
2127299120,2cyclictest0-21swapper/312:16:023
2127299120,2cyclictest0-21swapper/311:53:243
2127299120,2cyclictest0-21swapper/308:10:143
2127299120,2cyclictest0-21swapper/307:40:183
2127299120,11cyclictest0-21swapper/311:15:463
2127299120,11cyclictest0-21swapper/310:25:143
2127299120,11cyclictest0-21swapper/309:57:213
2127299120,11cyclictest0-21swapper/309:35:143
2127299120,10cyclictest0-21swapper/312:26:183
2127299120,10cyclictest0-21swapper/312:26:173
2127199129,2cyclictest5272-21diskmemload10:45:022
2127199129,2cyclictest5272-21diskmemload09:16:092
2127199129,2cyclictest0-21swapper/211:50:362
2127199129,2cyclictest0-21swapper/211:10:142
2127199129,2cyclictest0-21swapper/210:56:192
2127199129,2cyclictest0-21swapper/209:20:222
2127199129,2cyclictest0-21swapper/208:50:112
2127199129,2cyclictest0-21swapper/208:06:032
2127199129,2cyclictest0-21swapper/208:00:122
2127199122,7cyclictest0-21swapper/212:37:592
2127199122,7cyclictest0-21swapper/209:00:012
2127199122,7cyclictest0-21swapper/208:32:592
2127199122,7cyclictest0-21swapper/208:27:592
2127199121,5cyclictest0-21swapper/208:20:012
2127199120,2cyclictest0-21swapper/211:35:522
2127199120,2cyclictest0-21swapper/211:26:562
2127199120,2cyclictest0-21swapper/211:21:322
2127199120,2cyclictest0-21swapper/211:16:462
2127199120,2cyclictest0-21swapper/210:25:192
2127199120,2cyclictest0-21swapper/209:33:262
2127199120,11cyclictest0-21swapper/210:41:042
2127199120,11cyclictest0-21swapper/209:50:342
2127199120,11cyclictest0-21swapper/209:35:112
2127199120,11cyclictest0-21swapper/208:10:282
2127199120,10cyclictest0-21swapper/210:51:022
2127199120,10cyclictest0-21swapper/210:20:402
2127099129,2cyclictest3667-21kworker/u8:010:25:051
2127099129,2cyclictest23561-21kworker/u8:207:29:051
2127099129,2cyclictest21142-21kworker/u8:108:51:041
2127099129,2cyclictest0-21swapper/110:35:181
2127099127,3cyclictest24438-21fschecks_count11:10:141
2127099121,9cyclictest0-21swapper/108:40:131
2127099121,9cyclictest0-21swapper/108:05:141
2127099121,3cyclictest3350-21munin-node1
2127099121,3cyclictest1297-21munin-node1
2127099121,3cyclictest0-21swapper/109:55:181
2127099121,3cyclictest0-21swapper/107:50:181
2127099120,2cyclictest5272-21diskmemload11:45:081
2127099120,2cyclictest0-21swapper/111:56:361
2127099120,2cyclictest0-21swapper/111:15:481
2127099120,2cyclictest0-21swapper/109:35:171
2127099120,2cyclictest0-21swapper/107:59:191
2127099120,2cyclictest0-21swapper/107:15:141
2127099120,11cyclictest0-21swapper/110:10:591
2127099120,10cyclictest0-21swapper/111:20:181
2126999129,2cyclictest1430-21kworker/u8:009:05:050
2126999129,2cyclictest0-21swapper/012:30:310
2126999129,2cyclictest0-21swapper/008:51:030
2126999129,2cyclictest0-21swapper/007:20:130
2126999120,2cyclictest0-21swapper/010:35:260
2126999120,2cyclictest0-21swapper/008:05:110
2126999120,11cyclictest0-21swapper/011:40:290
179802120,2sleep30-21swapper/309:22:173
162952120,1sleep30-21swapper/312:09:143
2127299118,2cyclictest5272-21diskmemload10:46:473
2127299118,2cyclictest0-21swapper/311:08:483
2127299118,2cyclictest0-21swapper/310:08:013
2127299118,2cyclictest0-21swapper/308:40:123
2127299118,2cyclictest0-21swapper/308:00:173
2127299112,7cyclictest0-21swapper/308:28:593
2127299112,6cyclictest0-21swapper/309:01:013
2127299110,6cyclictest7212sh10:11:153
2127299110,3cyclictest25254-21ssh10:36:423
2127299110,2cyclictest0-21swapper/312:00:443
2127299110,2cyclictest0-21swapper/311:12:273
2127299110,10cyclictest0-21swapper/310:51:583
2127299110,10cyclictest0-21swapper/308:24:053
2127199118,2cyclictest0-21swapper/209:00:172
2127199118,2cyclictest0-21swapper/207:20:152
2127199116,3cyclictest0-21swapper/207:56:042
2127199111,6cyclictest0-21swapper/207:13:402
2127199110,10cyclictest0-21swapper/212:16:272
2127099118,2cyclictest21142-21kworker/u8:108:47:051
2127099111,8cyclictest32408-21iostat_ios08:55:161
2127099110,9cyclictest21483-21munin-node1
2126999118,2cyclictest0-21swapper/010:26:110
2126999110,1cyclictest0-21swapper/008:45:490
2127299107,2cyclictest0-21swapper/309:05:113
2127299102,7cyclictest0-21swapper/308:08:023
2127299101,5cyclictest0-21swapper/308:35:013
2127299101,5cyclictest0-21swapper/307:55:003
2127099100,8cyclictest0-21swapper/107:40:141
2126999107,2cyclictest0-21swapper/007:15:130
2126999100,2cyclictest0-21swapper/008:19:050
212729994,3cyclictest28662-21ps08:45:173
212729994,3cyclictest28429-21ntpq07:25:183
212729994,3cyclictest0-21swapper/307:49:593
212729991,6cyclictest940-21sh07:40:003
212719994,3cyclictest5788-21fschecks_count07:50:142
212719994,3cyclictest24868-21sort08:36:022
212719993,4cyclictest3528-21grep07:45:132
212719992,6cyclictest0-21swapper/209:05:022
212729984,2cyclictest23852-21cpu08:35:133
212729982,4cyclictest0-21swapper/307:15:133
212719981,4cyclictest0-21swapper/208:20:102
212699985,2cyclictest0-21swapper/007:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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