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2026-05-02 - 14:18

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 Sat May 02, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2777921360,1sleep027780-21sh10:12:470
16562210897,6sleep30-21swapper/307:07:153
16642210796,6sleep10-21swapper/107:08:171
16623210787,15sleep20-21swapper/207:08:022
15407210685,14sleep00-21swapper/007:05:160
86322750,0sleep00-21swapper/011:01:060
303192750,0sleep00-21swapper/012:35:140
133502720,0sleep20-21swapper/211:06:132
1680799350,33cyclictest0-21swapper/207:40:122
40962220,0sleep30-21swapper/309:47:173
1680699223,2cyclictest0-21swapper/107:51:041
1680699223,17cyclictest0-21swapper/111:41:041
16808992118,2cyclictest7758-21kworker/u8:110:28:033
16808992118,2cyclictest6771-21kworker/u8:011:15:043
1680799210,19cyclictest0-21swapper/208:20:122
1680699212,2cyclictest0-21swapper/112:29:041
1680699212,2cyclictest0-21swapper/111:29:041
1680699212,2cyclictest0-21swapper/111:12:011
1680699212,2cyclictest0-21swapper/110:29:041
1680699212,17cyclictest0-21swapper/112:24:001
16806992118,2cyclictest16922-21kworker/u8:108:30:051
1680699210,4cyclictest0-21swapper/110:41:031
16805992118,2cyclictest1230-21kworker/u8:110:56:040
16808992017,2cyclictest8705-21kworker/u8:109:29:043
16808992017,2cyclictest3327-21kworker/u8:209:13:043
1680899200,2cyclictest0-21swapper/309:50:113
16807992017,2cyclictest25297-21ssh11:55:012
1680699202,1cyclictest0-21swapper/110:34:041
1680699201,2cyclictest0-21swapper/110:53:041
1680699201,2cyclictest0-21swapper/109:34:001
1680699201,2cyclictest0-21swapper/107:27:041
1680699201,18cyclictest0-21swapper/108:10:011
1680699200,18cyclictest0-21swapper/108:35:041
1680699200,10cyclictest0-21swapper/109:35:041
16805992017,2cyclictest3416-21kworker/u8:011:32:030
16805992017,2cyclictest29380-21kworker/u8:010:23:040
16805992017,2cyclictest1682-21kworker/u8:210:25:040
16805992017,2cyclictest1230-21kworker/u8:111:06:030
1680599200,2cyclictest0-21swapper/009:50:110
16808991916,2cyclictest8865-21kworker/u8:111:50:013
16808991916,2cyclictest8865-21kworker/u8:111:48:043
16808991916,2cyclictest29380-21kworker/u8:010:22:013
16808991916,2cyclictest24254-21kworker/u8:111:30:043
16808991916,2cyclictest1230-21kworker/u8:111:00:043
16808991916,2cyclictest1047-21kworker/u8:010:00:003
1680899190,2cyclictest1761-21kworker/3:010:06:053
1680899190,2cyclictest0-21swapper/309:20:043
1680699193,2cyclictest0-21swapper/111:04:041
1680699192,2cyclictest0-21swapper/112:18:041
1680699192,2cyclictest0-21swapper/110:05:041
1680699192,2cyclictest0-21swapper/109:25:041
16806991916,2cyclictest9207-21kworker/u8:008:41:041
16806991916,2cyclictest23833-21kworker/u8:212:07:041
1680699191,2cyclictest0-21swapper/111:05:041
1680699191,2cyclictest0-21swapper/109:48:041
1680699191,2cyclictest0-21swapper/108:21:041
1680699191,17cyclictest0-21swapper/111:16:041
16805991916,2cyclictest8705-21kworker/u8:109:18:040
16805991916,2cyclictest26931-21kworker/u8:109:38:010
16805991916,2cyclictest23833-21kworker/u8:212:17:040
1680599190,2cyclictest0-21swapper/009:20:040
16808991815,2cyclictest6771-21kworker/u8:011:24:053
16808991815,2cyclictest3416-21kworker/u8:011:36:043
16808991815,2cyclictest31275-21kworker/u8:007:55:043
16808991815,2cyclictest24254-21kworker/u8:111:29:043
16808991815,2cyclictest22340-21kworker/u8:210:41:043
16808991815,2cyclictest21290-21kworker/u8:209:31:043
16808991815,2cyclictest20613-21kworker/u8:212:32:033
1680899180,2cyclictest0-21swapper/310:45:043
1680899180,2cyclictest0-21swapper/308:08:043
16806991815,2cyclictest19426-21kworker/u8:209:05:031
1680699181,2cyclictest0-21swapper/112:10:051
1680699181,2cyclictest0-21swapper/109:10:041
1680699180,2cyclictest0-21swapper/111:33:041
1680699180,17cyclictest0-21swapper/108:46:041
1680599180,2cyclictest0-21swapper/010:45:040
129852180,1sleep229-21rcuc/209:21:552
16808991714,2cyclictest9018-21kworker/u8:207:27:043
16808991714,2cyclictest8865-21kworker/u8:111:40:043
16808991714,2cyclictest31275-21kworker/u8:007:51:043
16808991714,2cyclictest23833-21kworker/u8:211:59:043
16808991714,2cyclictest13115-21kworker/u8:010:39:043
16808991714,2cyclictest1230-21kworker/u8:111:12:013
1680899170,2cyclictest0-21swapper/309:55:113
1680899170,2cyclictest0-21swapper/309:55:113
1680699172,2cyclictest0-21swapper/110:16:031
16806991714,2cyclictest9207-21kworker/u8:008:25:041
1680699171,2cyclictest0-21swapper/109:44:041
1680699171,2cyclictest0-21swapper/108:56:041
1680699171,2cyclictest0-21swapper/107:41:041
1680699170,2cyclictest0-21swapper/112:38:041
1680699170,2cyclictest0-21swapper/111:54:051
1680699170,2cyclictest0-21swapper/110:47:041
1680699170,2cyclictest0-21swapper/110:13:041
1680699170,2cyclictest0-21swapper/108:00:041
1680699170,16cyclictest0-21swapper/107:15:041
1680699170,16cyclictest0-21swapper/107:11:041
1680699170,14cyclictest0-21swapper/110:20:041
16805991714,2cyclictest9207-21kworker/u8:008:37:040
16805991714,2cyclictest9207-21kworker/u8:008:19:040
16805991714,2cyclictest8865-21kworker/u8:111:51:040
47792160,0sleep20-21swapper/210:22:442
16808991613,2cyclictest9018-21kworker/u8:208:26:043
16808991613,2cyclictest9018-21kworker/u8:208:03:043
16808991613,2cyclictest9018-21kworker/u8:207:34:043
16808991613,2cyclictest6260-21kworker/u8:210:11:043
16808991613,2cyclictest26931-21kworker/u8:109:40:033
16808991613,2cyclictest23833-21kworker/u8:212:10:053
16808991613,2cyclictest23833-21kworker/u8:212:00:043
16808991613,2cyclictest21290-21kworker/u8:209:35:043
16808991613,2cyclictest20613-21kworker/u8:212:29:043
16808991613,2cyclictest16922-21kworker/u8:108:34:043
16808991613,2cyclictest13115-21kworker/u8:010:34:043
1680699164,2cyclictest0-21swapper/110:39:041
1680699161,3cyclictest2522-21iostat10:55:151
16806991613,2cyclictest21091-21kworker/u8:007:22:041
1680699161,2cyclictest0-21swapper/111:55:041
1680699161,2cyclictest0-21swapper/111:46:041
1680699161,2cyclictest0-21swapper/109:19:041
1680699161,13cyclictest14354-21ssh09:58:491
1680699161,13cyclictest14354-21ssh09:58:481
1680699161,13cyclictest0-21swapper/110:00:051
1680699160,2cyclictest0-21swapper/109:01:041
1680699160,2cyclictest0-21swapper/108:52:041
1680699160,2cyclictest0-21swapper/108:15:041
16805991613,2cyclictest6260-21kworker/u8:210:03:040
16805991613,2cyclictest23833-21kworker/u8:212:03:040
16805991613,2cyclictest1047-21kworker/u8:009:45:040
1680599161,13cyclictest9360-21ssh12:11:390
1680599161,13cyclictest15186-21tail09:25:120
1680599160,2cyclictest0-21swapper/011:49:040
1680599160,14cyclictest0-21swapper/011:41:490
16808991512,2cyclictest9207-21kworker/u8:008:45:043
16808991512,2cyclictest6771-21kworker/u8:011:05:043
16808991512,2cyclictest4784-21kworker/u8:108:10:013
16808991512,2cyclictest27447-21kworker/u8:109:08:013
16808991512,2cyclictest25729-21kworker/u8:012:37:043
16808991512,2cyclictest23833-21kworker/u8:212:08:053
16808991512,2cyclictest19426-21kworker/u8:209:04:043
16808991512,2cyclictest19426-21kworker/u8:208:52:043
16808991512,2cyclictest16618-21kworker/u8:110:16:043
16808991512,2cyclictest13115-21kworker/u8:010:53:043
1680899150,13cyclictest0-21swapper/310:57:323
16807991510,3cyclictest11529-21sed08:15:122
1680699150,2cyclictest0-21swapper/107:39:041
1680599151,2cyclictest716-21diskmemload10:06:420
16805991512,2cyclictest9207-21kworker/u8:008:23:040
1680599150,3cyclictest26848-21tr11:21:010
1680599150,2cyclictest0-21swapper/012:08:010
1680599150,2cyclictest0-21swapper/011:57:040
1680599150,2cyclictest0-21swapper/010:37:040
107392150,2sleep00-21swapper/009:55:050
107392150,2sleep00-21swapper/009:55:050
16808991411,2cyclictest9207-21kworker/u8:008:21:043
16808991411,2cyclictest8705-21kworker/u8:109:19:033
16808991411,2cyclictest8573-21kworker/u8:012:24:013
16808991411,2cyclictest27447-21kworker/u8:108:56:043
16808991411,2cyclictest23833-21kworker/u8:212:18:043
16808991411,2cyclictest16922-21kworker/u8:108:35:043
1680799149,3cyclictest20627-21cron12:25:002
1680799149,3cyclictest0-21swapper/211:43:462
16807991411,2cyclictest0-21swapper/211:12:052
16807991411,2cyclictest0-21swapper/207:55:152
1680799140,2cyclictest0-21swapper/209:41:252
1680799140,12cyclictest0-21swapper/210:27:052
1680699140,2cyclictest0-21swapper/107:34:041
1680699140,12cyclictest0-21swapper/109:20:331
1680599149,3cyclictest0-21swapper/009:44:080
16805991411,2cyclictest9207-21kworker/u8:008:31:030
16805991411,2cyclictest9018-21kworker/u8:208:05:030
16805991411,2cyclictest29380-21kworker/u8:010:15:040
16805991411,2cyclictest25924-21kworker/u8:007:10:040
16805991411,2cyclictest17055-21kworker/u8:107:18:040
16805991411,2cyclictest13115-21kworker/u8:010:52:040
1680599140,12cyclictest716-21diskmemload09:10:180
1680599140,12cyclictest0-21swapper/011:10:290
16808991310,2cyclictest9207-21kworker/u8:008:16:043
16808991310,2cyclictest17055-21kworker/u8:107:13:043
1680899130,2cyclictest0-21swapper/307:40:133
16807991310,2cyclictest0-21swapper/209:18:052
1680799130,2cyclictest26082-21switchtime09:36:032
1680799130,2cyclictest0-21swapper/211:47:252
1680799130,2cyclictest0-21swapper/211:35:002
1680799130,2cyclictest0-21swapper/210:46:272
1680799130,2cyclictest0-21swapper/210:02:252
1680799130,11cyclictest716-21diskmemload10:37:162
1680799130,11cyclictest0-21swapper/211:50:352
16806991310,2cyclictest0-21swapper/112:00:501
16806991310,2cyclictest0-21swapper/107:56:031
1680699130,2cyclictest0-21swapper/111:24:021
1680699130,12cyclictest0-21swapper/111:39:411
1680599131,6cyclictest0-21swapper/007:30:000
16805991310,2cyclictest23270-21ssh09:33:360
16805991310,2cyclictest13115-21kworker/u8:010:40:040
16805991310,2cyclictest13115-21kworker/u8:010:33:040
16805991310,2cyclictest0-21swapper/012:20:170
16805991310,2cyclictest0-21swapper/008:55:170
1680599130,2cyclictest0-21swapper/009:00:180
1680599130,12cyclictest0-21swapper/009:05:180
1680599130,12cyclictest0-21swapper/008:50:120
91832120,2sleep00-21swapper/011:36:380
26682120,2sleep2716-21diskmemload09:45:412
1680899129,2cyclictest9018-21kworker/u8:207:36:043
1680899129,2cyclictest17055-21kworker/u8:107:15:043
1680799129,2cyclictest32545-21ssh12:01:552
1680799129,2cyclictest19658-21ssh09:30:012
1680799129,2cyclictest0-21swapper/212:11:472
1680799129,2cyclictest0-21swapper/211:18:212
1680799129,2cyclictest0-21swapper/210:31:022
1680799128,3cyclictest12436-21ssh09:56:012
1680799128,3cyclictest12436-21ssh09:56:012
1680799122,5cyclictest0-21swapper/209:00:002
1680799120,2cyclictest0-21swapper/212:35:152
1680799120,2cyclictest0-21swapper/212:07:142
1680799120,2cyclictest0-21swapper/208:30:162
1680799120,11cyclictest0-21swapper/212:15:172
1680699121,9cyclictest0-21swapper/108:05:161
1680699121,1cyclictest0-21swapper/109:50:191
1680699120,2cyclictest0-21swapper/112:30:091
1680699120,11cyclictest0-21swapper/107:45:151
1680599129,2cyclictest0-21swapper/012:31:400
1680599129,2cyclictest0-21swapper/012:25:290
1680599129,2cyclictest0-21swapper/008:45:170
1680599129,2cyclictest0-21swapper/007:35:120
1680599124,5cyclictest0-21swapper/008:00:020
1680599122,7cyclictest0-21swapper/008:11:590
1680599121,6cyclictest0-21swapper/007:45:000
1680599120,2cyclictest0-21swapper/011:25:140
1680599120,2cyclictest0-21swapper/011:15:270
177382110,2sleep20-21swapper/209:27:132
1680899110,2cyclictest0-21swapper/307:45:153
1680799118,2cyclictest0-21swapper/210:55:112
1680799118,2cyclictest0-21swapper/210:40:132
1680799118,2cyclictest0-21swapper/210:14:162
1680799118,2cyclictest0-21swapper/208:45:152
1680799111,6cyclictest0-21swapper/207:50:002
1680799111,5cyclictest716-21diskmemload10:05:012
1680799110,9cyclictest716-21diskmemload11:22:182
1680799110,10cyclictest0-21swapper/210:50:102
1680599112,7cyclictest0-21swapper/008:25:020
1680599110,2cyclictest0-21swapper/007:57:040
1680599110,2cyclictest0-21swapper/007:25:040
266112100,1sleep20-21swapper/212:30:192
1680899100,2cyclictest0-21swapper/308:40:043
1680799107,2cyclictest0-21swapper/211:01:452
1680799107,2cyclictest0-21swapper/210:15:252
1680799107,2cyclictest0-21swapper/209:10:202
1680799107,2cyclictest0-21swapper/209:05:512
1680799105,3cyclictest1638-21cut07:50:162
1680799102,7cyclictest0-21swapper/207:37:592
1680799102,6cyclictest0-21swapper/212:26:022
1680799102,6cyclictest0-21swapper/211:26:012
1680799101,5cyclictest0-21swapper/208:35:112
1680799100,9cyclictest0-21swapper/211:37:182
1680599107,2cyclictest26156-21kworker/u8:107:45:040
1680599107,2cyclictest21091-21kworker/u8:007:21:040
1680599100,7cyclictest0-21swapper/007:51:020
1680599100,2cyclictest0-21swapper/008:40:040
168089990,2cyclictest0-21swapper/307:23:043
168079996,2cyclictest0-21swapper/209:54:552
168079996,2cyclictest0-21swapper/208:40:152
168079996,2cyclictest0-21swapper/207:25:112
168079994,3cyclictest5459-21df08:00:132
168079994,3cyclictest18196-21switchtime07:11:022
168079990,8cyclictest0-21swapper/207:20:152
168079984,2cyclictest7447-21cpuspeed_turbos08:05:162
168079984,2cyclictest27572-21cpuspeed_turbos08:55:132
168079983,3cyclictest25601-21cpuspeed_turbos08:50:132
168079983,3cyclictest25390-21tr07:30:142
168079983,3cyclictest19255-21cpuspeed_turbos07:15:132
168079983,3cyclictest15254-21telnet08:25:122
168079980,7cyclictest0-21swapper/208:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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